diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/AnyBaseToDecimal.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/AnyBaseToDecimal.cpp
new file mode 100644
index 00000000..4f330ecc
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/AnyBaseToDecimal.cpp
@@ -0,0 +1,28 @@
+#include<iostream>
+#include<math.h>
+using namespace std;
+int AnyToDec(int n, int b) {
+    int g=n;
+    int p=0,i=0,sum=0;
+    int q=g;
+    while(g!=0)
+    {
+        q=g%10;
+        p=pow(b,i);
+        
+        i++;
+        g=g/10;
+        sum=sum+(p*q);
+    }
+    return(sum);
+    
+}
+int main() {
+  int n;
+  int b;
+  int sum=0,h=0,g=0,i=0;
+  cin >> n;
+  cin >> b;
+  int res = AnyToDec(n, b);
+  cout << res << endl;
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/BarChart.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/BarChart.cpp
new file mode 100644
index 00000000..7f38622c
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/BarChart.cpp
@@ -0,0 +1,35 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cin>>n;
+    int arr[n];
+    for(int i=0;i<n;i++)
+    {
+        cin>>arr[i];
+    }
+    int max=arr[0];
+    for(int i=0;i<n;i++)
+    {
+        if(arr[i]>=max)
+        {
+            max=arr[i];
+        }
+    }
+    for(int i=max;i>0;i--)
+    {
+        for(int j=0;j<n;j++)
+        {
+            if(arr[j]>=i)
+            {
+                cout<<"*\t";
+            }
+            else
+            {
+                cout<<"\t";
+            }
+            
+        }cout<<"\n";
+    }
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/DecimalToAnyBase.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/DecimalToAnyBase.cpp
new file mode 100644
index 00000000..bf2dfe3d
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/DecimalToAnyBase.cpp
@@ -0,0 +1,29 @@
+#include<iostream>
+#include<math.h>
+using namespace std;
+int DecToAny(int n, int b) {
+    int arr[100],i=0,f=0,final;
+    while(n!=0)
+    {
+        int q=n%b;
+        arr[i]=q;
+        i++;
+        n=n/b;
+    }
+    for(int j=i-1;j>=0;j--)
+    {
+       int g=pow(10,j);
+       int final=arr[j]*g;
+       f=f+final;
+    }
+    return f;
+    
+}
+int main() {
+  int n;
+  int b;
+  cin >> n;
+  cin >> b;
+  int res = DecToAny(n, b);
+  cout << res << endl;
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/DigitFrequency.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/DigitFrequency.cpp
new file mode 100644
index 00000000..4c67f71c
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/DigitFrequency.cpp
@@ -0,0 +1,23 @@
+#include<iostream>
+using namespace std;
+int digFreq(int n, int d) {
+    int arr[100],i=0,c=0;
+    while(n!=0)
+    {
+        arr[i]=n%10;
+        n=n/10;
+        i++;
+    }
+    for(int j=0;j<i;j++)
+    {
+        if(arr[j]==d)
+        c++;
+    }
+    return c;
+}
+int main() {
+  int n, d;
+  cin >> n >> d;
+  int res = digFreq(n, d);
+  cout << res << endl;
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/FindElementInAnArray.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/FindElementInAnArray.cpp
new file mode 100644
index 00000000..e8a0f950
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/FindElementInAnArray.cpp
@@ -0,0 +1,30 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n,c=0;
+    cin>>n;
+    int arr[n];
+    for(int i=0;i<n;i++)
+    {
+        scanf("%d",&arr[i]);
+    }
+    int d;
+    scanf("%d",&d);
+    for(int i=0;i<n;i++)
+    {
+        if(arr[i]==d)
+        {
+            cout<<i;
+            c++;
+            break;
+        }
+        
+    }
+    if(c==0)
+    {
+        cout<<"-1";
+    }
+    
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/Inverseofanarray.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/Inverseofanarray.cpp
new file mode 100644
index 00000000..73ba4c99
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/Inverseofanarray.cpp
@@ -0,0 +1,31 @@
+#include<iostream>
+using namespace std;
+
+int* inverse(int* arr, int n){
+    for(int i=0;i<n;i++)
+    { 
+        for(int j=0;j<n;j++)
+        {
+            if(i==arr[j])
+            {
+                cout<<j<<"\n";
+                break;
+            }
+        }
+    }
+    
+}
+
+
+int main(){
+    int n;
+    cin>>n;
+    int* arr = new int[n];
+    for(int i = 0 ; i < n; i++){
+        cin>>arr[i];
+    }
+    
+    int* inv = inverse(arr,n);
+    //display(inv,n);
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/ReverseAnArray.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/ReverseAnArray.cpp
new file mode 100644
index 00000000..8867e5fe
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/ReverseAnArray.cpp
@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+
+void reverse(int* arr, int n){
+    for(int i=n-1;i>=0;i--)
+    {
+        cout<<arr[i]<<" ";
+    }
+    
+}
+int main(){
+    int n;
+    cin>>n;
+    
+    int* arr = new int[n];
+    for(int i = 0 ; i < n; i++){
+        cin>>arr[i];
+    }
+    reverse(arr,n);
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/RotateAnArray.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/RotateAnArray.cpp
new file mode 100644
index 00000000..21863b40
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/RotateAnArray.cpp
@@ -0,0 +1,72 @@
+#include<iostream>
+using namespace std;
+
+void rotate(int* arr, int n, int k){
+    int r=k;
+   if(r>0)
+   {
+       if(r<n)
+       {for(int i=n-k;i<n;i++)
+       {
+           cout<<arr[i]<<" ";
+       }
+       for(int i=0;i<n-k;i++)
+       {
+           cout<<arr[i]<<" ";
+       }}
+       else
+       {
+           k=r%n;
+           for(int i=n-k;i<n;i++)
+       {
+           cout<<arr[i]<<" ";
+       }
+       for(int i=0;i<n-k;i++)
+       {
+           cout<<arr[i]<<" ";
+       }
+       }
+   }
+   else
+   {    k=k*-1;
+        if(k<n)
+       {for(int i=k;i<n;i++)
+       {
+           cout<<arr[i]<<" ";
+       }
+       for(int i=0;i<k;i++)
+       {
+           cout<<arr[i]<<" ";
+       }}
+       else
+       {
+           k=k%n;
+           for(int i=k;i<n;i++)
+       {
+           cout<<arr[i]<<" ";
+       }
+       for(int i=0;i<k;i++)
+       {
+           cout<<arr[i]<<" ";
+       }
+           
+       }
+   }
+  
+    
+}
+
+
+
+int main(){
+    int n, r;
+    cin>>n;
+    int* arr = new int[n];
+    for(int i = 0 ; i < n; i++){
+        cin>>arr[i];
+    }
+    cin>>r;
+    
+    rotate(arr,n,r);
+    //display(arr,n);
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/SpanOfArray.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/SpanOfArray.cpp
new file mode 100644
index 00000000..ff274422
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/SpanOfArray.cpp
@@ -0,0 +1,29 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin>>n;
+    int arr[n],e;
+    for(int i=0;i<n;i++)
+    {
+        cin>>e;
+        arr[i]=e;
+    }
+    int max=arr[0],min=arr[0];
+    for(int i=0;i<n;i++)
+    {
+        if(arr[i]>=max)
+        {
+            max=arr[i];
+        }
+        if(arr[i]<=min)
+        {
+            min=arr[i];
+        }
+    }
+    int sum=max-min;
+    cout<<sum;
+    
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/SumOfTwoArrays.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/SumOfTwoArrays.cpp
new file mode 100644
index 00000000..eae054a9
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/FunctionandArrays/SumOfTwoArrays.cpp
@@ -0,0 +1,55 @@
+#include<iostream>
+using namespace std;
+
+int main(){
+    int n1, n2;
+    cin>>n1;
+    int* a1 = new int[n1];
+    for(int i = 0 ; i < n1; i++){
+        cin>>a1[i];
+    }
+    
+    cin>>n2;
+    int* a2 = new int[n2];
+    for(int i = 0 ; i < n2; i++){
+        cin>>a2[i];
+    }
+    
+    int m = max(n1,n2);
+    int* ans = new int[m];
+    
+    int i = n1 - 1;
+    int j = n2 - 1;
+    int k = m - 1;
+    int carry = 0;
+    
+    while(k >= 0){
+        int sum = carry;
+        if(i >= 0){
+            sum += a1[i];
+        }
+        
+        if(j >= 0){
+            sum += a2[j];
+        }
+        
+        int q = sum / 10;
+        int r = sum % 10;
+        
+        ans[k] = r;
+        carry = q;
+        i--;
+        j--;
+        k--;
+    }
+    
+    if(carry != 0){
+        cout<<carry<<endl;
+    }
+    
+    for(int i = 0 ; i < m; i++){
+        cout<<ans[i]<<endl;
+    }
+}
+                        
+                                
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/Gradingsystem.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/Gradingsystem.cpp
new file mode 100644
index 00000000..3dd084f9
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/Gradingsystem.cpp
@@ -0,0 +1,17 @@
+#include<iostream>
+using namespace std;
+int main(int argc, char**argv){
+    int marks;
+    cin>>marks;
+    if(marks>90)
+    cout<<"excellent";
+    else if(marks>80&&marks<=90)
+    cout<<"good";
+    else if(marks>70&&marks<=80)
+    cout<<"fair";
+    else if(marks>60&&marks<=70)
+    cout<<"expectations";
+    else
+    cout<<"below par";
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/IsANumberPrime.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/IsANumberPrime.cpp
new file mode 100644
index 00000000..7f62cef1
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/IsANumberPrime.cpp
@@ -0,0 +1,32 @@
+#include <iostream>
+using namespace std;
+int main(int argc, char **argv){
+    int t,i=0;
+    cin >> t;
+    while(i!=t)
+    {
+        int n,c=0;
+        cin>>n;
+        for(int i=2;i<=(n/2);i++)
+        {
+            if(n%i==0)
+            {
+                c++;
+                break;
+            }
+            else
+            {
+              continue;  
+            }
+        }
+        if(c!=0)
+        {
+            cout<<"not prime"<<endl;
+        }
+        else
+        cout<<"prime"<<endl;
+        i=i+1;
+    }
+
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/PrintAllPrimesTillN.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/PrintAllPrimesTillN.cpp
new file mode 100644
index 00000000..d6642e46
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/PrintAllPrimesTillN.cpp
@@ -0,0 +1,28 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int l,u,c=0;
+    cin>>l;
+    cin>>u;
+    while(l!=u)
+    {   c=0;
+        for(int i=2;i<=(l/2);i++)
+        {
+            if(l%i==0)
+            {
+                c++;
+                break;
+            }
+            else
+            {
+                continue;
+            }
+        }
+        if(c==0)
+        {
+            cout<<l<<endl;
+        }
+        l++;
+    }
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/PrintZ.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/PrintZ.cpp
new file mode 100644
index 00000000..af9ebfd7
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/PrintZ.cpp
@@ -0,0 +1,25 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    for(int i=1;i<=5;i++)
+    {
+        if(i==1||i==5)
+        {
+            for(int j=1;j<=5;j++)
+            {
+                cout<<"*";
+            }cout<<endl;
+        }
+        else
+        {
+            for(int j=1;j<=5-i;j++)
+            {
+               cout<<" ";   
+            }
+            cout<<"*";
+            cout<<endl;
+            continue;
+        }
+    }return 0;
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/countdigitsinanumber.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/countdigitsinanumber.cpp
new file mode 100644
index 00000000..b0fc3bb4
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/countdigitsinanumber.cpp
@@ -0,0 +1,13 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n,i=0;
+    cin >> n;
+    while(n!=0)
+    {
+        n=n/10;
+        i++;
+    }cout<<i;
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/digitsofanumber.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/digitsofanumber.cpp
new file mode 100644
index 00000000..f7c500ef
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/digitsofanumber.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n,arr[100],i=0,q;
+    cin >> n;
+    while(n!=0)
+    {
+        q=n%10;
+        n=n/10;
+        arr[i]=q;
+        i++;
+    }
+    for(int j=i-1;j>=0;j--)
+    {
+        cout<<arr[j]<<endl;
+    }
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/reversenumber.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/reversenumber.cpp
new file mode 100644
index 00000000..70e79f22
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Gettingstarted/reversenumber.cpp
@@ -0,0 +1,14 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n,a;
+    cin >> n;
+    while(n!=0)
+    {
+        a=n%10;
+        cout<<a<<endl;
+        n=n/10;
+    }
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Patterm20.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Patterm20.cpp
new file mode 100644
index 00000000..495086b4
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Patterm20.cpp
@@ -0,0 +1,24 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int n,i,j,k,l;
+    cin>>n;
+    for(i=1;i<=n;i++)
+    {
+        for(j=1;j<=n;j++)
+        {
+            if(j==1 || j==n)
+            cout<<"*\t";
+            else if(i>n/2 && ( i==j || (i+j)==n+1))
+            cout<<"*\t";
+            else
+            cout<<"\t";
+        }
+        cout<<endl;
+    }
+
+    return 0;
+}
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern1.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern1.cpp
new file mode 100644
index 00000000..ea897df2
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern1.cpp
@@ -0,0 +1,15 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n;
+    cin >> n;
+    for(int i=1;i<=n;i++)
+    {
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"*\t";
+        }cout<<endl;
+    }
+   
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern10.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern10.cpp
new file mode 100644
index 00000000..5c6ff198
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern10.cpp
@@ -0,0 +1,40 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cin>>n;
+    int q=n/2;
+    q++;
+    for(int i=0;i<q;i++)
+    {
+        for(int j=1;j<q-i;j++)
+        {
+            cout<<"\t";
+        }cout<<"*";
+        for(int j=0;j<=(2*i)-1;j++)
+        {
+            cout<<"\t";
+        }
+        if(i!=0)
+        {cout<<"*";}
+        cout<<"\n";
+    }
+    for(int i=1;i<q;i++)
+    {
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"\t";
+        }
+        cout<<"*";
+        for(int j=1;j<(n-2*i);j++)
+        {
+            cout<<"\t";
+        }
+        if(i!=q-1)
+        {
+            cout<<"*";
+        }
+        cout<<"\n";
+    }
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern11.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern11.cpp
new file mode 100644
index 00000000..0d1212dc
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern11.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int n,j=1;
+    cin>>n;
+    for(int i=1;i<=n;i++)
+    {
+        for(int k=1;k<=i;k++)
+        {
+            cout<<j<<"\t";
+            j++;
+        }cout<<"\n";
+    }
+
+    return 0;
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern12.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern12.cpp
new file mode 100644
index 00000000..50e3d67a
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern12.cpp
@@ -0,0 +1,34 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int n,j=1,var=1,a=1;
+    cin>>n;
+    for(int i=1;i<=n;i++)
+    {
+        if(i==1)
+        {
+         cout<<"0";
+         cout<<"\n";
+         continue;
+        }
+        if(i==2)
+        {
+            cout<<"1"<<"\t"<<"1";
+        }
+        else
+        {
+           for(int k=1;k<=i;k++)
+           {
+               var=a+j;
+               cout<<var<<"\t";
+               j=a;
+               a=var;
+           }
+        }cout<<"\n";
+    }
+
+    return 0;
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern13.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern13.cpp
new file mode 100644
index 00000000..340a78ac
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern13.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n;
+    cin >> n;
+    
+    for (int i = 0; i < n; i++){
+        int val = 1;
+        for (int j = 0; j <= i; j++){
+            cout << val << ("\t");
+            val = (val * (i - j)) / (j + 1);
+        }
+        cout << endl;
+    }
+}
+                                
+                                
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern14.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern14.cpp
new file mode 100644
index 00000000..15b942e6
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern14.cpp
@@ -0,0 +1,14 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int n;
+    cin>>n;
+    for(int i=1;i<=10;i++)
+    {
+        cout<<n<<" * "<<i<<" = "<< n*i;
+        cout<<"\n";
+    }
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern15.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern15.cpp
new file mode 100644
index 00000000..13df9033
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern15.cpp
@@ -0,0 +1,69 @@
+#include <iostream>
+using namespace std;
+
+int main()
+{
+    int n,q,m=0;
+    cin>>n;
+    q=n/2;
+    q++;
+    for(int i=0;i<q-1;i++)
+    {
+        for(int j=1;j<q-i;j++)
+        {
+            cout<<"\t";
+        }
+        for(int j=1;j<=2*i+1;j++)
+        {
+            if(j>i+1)
+            {
+                for(int k=1;k<=i;k++)
+                {
+                    cout<<m-k<<"\t";
+                    j++;
+                }
+            }
+            else
+            {m=i+j;
+            cout<<m<<"\t";}
+        }
+        cout<<"\n";
+    }
+   // int q=n/2;
+     m=q;
+    int c=1;
+    int h=1;
+    for(int i=q;i>0;i--)
+    {
+        for(int j=2;j<=c;j++)
+        {
+            cout<<"\t";
+        }
+        for(int j=1;j<=2*i-1;j++)
+        {
+            if(j>i)
+            {   
+                if(m-h>=i)
+                {cout<<m-h<<"\t";
+                 h++;
+                }
+            }
+            else
+            {
+                
+                
+                    cout<<i+j-1<<"\t";
+                    m=i+j-1;
+                
+            }
+        }
+        c++;
+        h=1;
+        cout<<"\n";
+    }
+  
+   
+  
+
+    return 0;
+}
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern16.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern16.cpp
new file mode 100644
index 00000000..d05272ef
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern16.cpp
@@ -0,0 +1,41 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cin>>n;
+    int b=n;
+    int q=2*b+3;
+    for(int i=1;i<=n;i++)
+    {
+            q=2*b-3;
+            if(q<0)
+            {
+                for(int j=1;j<=i;j++)
+                {
+                    cout<<j<<"\t";
+                }
+                for(int j=i-1;j>=1;j--)
+                {
+                    cout<<j<<"\t";
+                }
+            }
+            else
+             {   for(int j=1;j<=i;j++)
+                {
+                    cout<<j<<"\t";
+                }
+                for(int j=1;j<=q;j++)
+                {
+                    cout<<"\t";
+                }
+                q=2*(n-i)+3;
+                for(int j=i;j>=1;j--)
+                {
+                    cout<<j<<"\t";
+                }
+             }
+            b=b-1;
+            cout<<"\n";
+    }
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern17.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern17.cpp
new file mode 100644
index 00000000..856aaf8a
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern17.cpp
@@ -0,0 +1,42 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cin>>n;
+    int c=1;
+    int q=n/2;
+    for(int i=1;i<=n;i++)
+    {
+        if(i<q+1)
+        {
+            for(int j=1;j<=q;j++)
+            {
+                cout<<"\t";
+            }
+            for(int j=1;j<=i;j++)
+            {
+             cout<<"*"<<"\t"; 
+            }
+        }
+        if(i==q+1)
+        {
+            for(int i=1;i<=n;i++)
+            {
+                cout<<"*"<<"\t";
+            }
+        }
+        if(i>q+1)
+        {   
+            for(int j=1;j<=q;j++)
+            {
+                cout<<"\t";
+            }
+            for(int k=1;k<=q+1-c;k++)
+            {
+                cout<<"*"<<"\t";
+            }c++;
+        }
+            cout<<"\n";
+    }
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern18.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern18.cpp
new file mode 100644
index 00000000..7253868b
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern18.cpp
@@ -0,0 +1,43 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cin>>n;
+    int q=n/2;
+    int q1=q+1;
+    for(int i=1;i<=n;i++)
+    {
+        cout<<"*"<<"\t";
+    }cout<<"\n";
+    for(int i=1;i<=q;i++)
+    {
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"\t";
+        }
+        cout<<"*"<<"\t";
+        int g=2*i;
+        for(int j=1;j<=(n-g-2);j++)
+        {   
+            cout<<"\t";
+        }
+        if(i!=q)
+        {
+            cout<<"*";
+        }
+        
+        cout<<"\n";
+    }
+    for(int i=0;i<q;i++)
+    {
+        for(int j=1;j<q-i;j++)
+        {
+            cout<<"\t";
+        }
+        for(int j=1;j<=3+(2*i);j++)
+        {
+            cout<<"*"<<"\t";
+        }cout<<"\n";
+    }
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern19.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern19.cpp
new file mode 100644
index 00000000..cc6a411e
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern19.cpp
@@ -0,0 +1,67 @@
+#include<iostream>
+using namespace std;
+int main()
+{
+    int n;
+    cin>>n;
+    int q=n/2;
+    q++;
+    for(int i=1;i<=q;i++)
+    {
+        if(i==1)
+        {
+            for(int j=1;j<=q;j++)
+            {
+                cout<<"*"<<"\t";
+            }
+            for(int j=1;j<q-1;j++)
+            {
+                cout<<"\t";
+            }cout<<"*";
+        }
+        else if(i==q)
+        {
+            for(int j=1;j<=n;j++)
+            {
+                cout<<"*"<<"\t";
+            }
+        }
+        else
+        {
+            for(int i=1;i<q;i++)
+            {
+                cout<<"\t";
+            }
+            cout<<"*";
+            for(int i=1;i<q;i++)
+            {
+                cout<<"\t";
+            }cout<<"*";
+        }
+        
+        cout<<"\n";
+    }
+    for(int i=1;i<q;i++)
+    {
+        if(i!=q-1)
+        {
+            cout<<"*"<<"\t";
+            for(int j=2;j<q;j++)
+            {
+                cout<<"\t";
+            }
+            cout<<"*";
+        }
+        else
+        {   cout<<"*"<<"\t";
+            for(int j=2;j<q;j++)
+            {
+                cout<<"\t";
+            }//cout<<"*"<<"\t";
+            for(int j=1;j<=q;j++)
+            {
+                cout<<"*"<<"\t";
+            }
+        }cout<<"\n";
+    }
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern2.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern2.cpp
new file mode 100644
index 00000000..9d900ee5
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern2.cpp
@@ -0,0 +1,14 @@
+#include <iostream>
+using namespace std;
+
+int main(){
+    int n;
+    cin >> n;
+    for(int i=0;i<n;i++)
+    {  
+        for( int j=n;j>=1+i;j--)
+        {
+            cout<<"*\t";
+        }cout<<endl; }
+    return 0;
+}
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern3.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern3.cpp
new file mode 100644
index 00000000..74bd06b0
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern3.cpp
@@ -0,0 +1,19 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n;
+    cin >> n;
+    for(int i=1;i<=n;i++)
+    {
+        for(int j=n;j>i;j--)
+        {
+            cout<<"\t";
+        }
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"*\t";
+        }cout<<endl;
+    }
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern4.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern4.cpp
new file mode 100644
index 00000000..df252c4c
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern4.cpp
@@ -0,0 +1,20 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n;
+    cin >> n;
+    for(int i=0;i<n;i++)
+    {
+        for(int j=0;j<i;j++)
+        {
+            cout<<"\t";
+        }
+        for(int j=0;j<n-i;j++)
+        {
+            cout<<"*"<<"\t";
+        }
+        cout<<"\n";
+    }
+
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern5.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern5.cpp
new file mode 100644
index 00000000..a26f1d15
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern5.cpp
@@ -0,0 +1,43 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n,c=0;
+    cin >> n;
+    int d=(n-1)/2;
+    for(int i=1;i<=n;i++)
+    {
+        if(c<d)
+        {
+            for(int j=0;j<d-c;j++)
+            {
+                cout<<"\t";
+            }
+            for(int j=0;j<(2*i)-1;j++)
+            {    
+                cout<<"*\t";
+            }cout<<endl;
+        }
+        else if(c==d)
+        {  
+            for(int j=0;j<n;j++)
+            {
+                cout<<"*\t";
+            }
+        }
+        c++;
+    }cout<<endl;
+    for(int i=1;i<=d;i++)
+    {
+        for(int j=1;j<=i;j++)
+        {
+            cout<<"\t";
+        }
+        for(int j=1;j<=n-(2*i);j++)
+        {
+            cout<<"*\t";
+        }cout<<endl;
+    }
+    
+    
+}
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern6.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern6.cpp
new file mode 100644
index 00000000..4eb57a79
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern6.cpp
@@ -0,0 +1,54 @@
+/******************************************************************************
+
+Welcome to GDB Online.
+GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
+C#, OCaml, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
+Code, Compile, Run and Debug online from anywhere in world.
+
+*******************************************************************************/
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int n;
+    cin>>n;
+    int q=n/2;
+    q++;
+    for(int i=0;i<q;i++)
+    {
+        for(int j=1;j<=q-i;j++)
+        {
+            cout<<"*"<<"\t";
+        }
+        for(int j=1;j<=(2*i)+1;j++)
+        {
+            cout<<"\t";
+        }
+        for(int j=1;j<=q-i;j++)
+        {
+            cout<<"*"<<"\t";
+        }
+        cout<<"\n";
+    }
+    int p=n-2;
+   int k=0;
+   for(int i=2;i<=q;i++)
+   {
+       for(int j=1;j<=i;j++)
+       {
+           cout<<"*"<<"\t";
+       }
+       for(int j=1;j<=p-(2*k);j++)
+       {
+           cout<<"\t";
+       }
+       for(int j=1;j<=i;j++)
+       {
+           cout<<"*"<<"\t";
+       }
+       k++;cout<<"\n";
+   }
+
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern7.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern7.cpp
new file mode 100644
index 00000000..ace214c3
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern7.cpp
@@ -0,0 +1,16 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n;
+    cin >> n;
+    for(int i=0;i<n;i++)
+    {
+        for(int j=0;j<i;j++)
+        {
+            cout<<"\t";
+        }cout<<"*";
+        cout<<"\n";
+    }
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern8.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern8.cpp
new file mode 100644
index 00000000..de383ce6
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern8.cpp
@@ -0,0 +1,17 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv)
+{
+    int n;
+    cin >> n;
+    for(int i=n;i>=1;i--)
+    {
+        for(int j=1;j<i;j++)
+        {
+            cout<<"\t";
+        }
+        cout<<"*\t"<<endl;
+    }
+    
+}
\ No newline at end of file
diff --git a/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern9.cpp b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern9.cpp
new file mode 100644
index 00000000..2ab82d3d
--- /dev/null
+++ b/IOT/gurpreetk12_gurpreetkaur_2125cs1094_2/Patterns/Pattern9.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv){
+    int n;
+    cin >> n;
+
+    for (int i = 1; i <= n; i++){
+        for (int j = 1; j <= n; j++){
+            if ((i == j) || (i + j == n + 1)){
+                cout << ("*\t");
+            }else{
+                cout << ("\t");
+            }
+        }
+        cout << endl;
+    }
+}
\ No newline at end of file