module1

my first module of programs

IOT/Nivedita-R_NiveditaRai_2125it1079_2/GettingStarted/CountDigitsInANumber.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+#include<cmath>
+using namespace std;
+
+int main(){
+    int n;
+    cin >> n;
+    if(n>=1 && n<=pow(10.0,9.0)){
+    int d=0;
+    while(n!=0)
+    {
+        n=n/10;
+        d++;
+    }
+    cout<<d;
+    }
+    return 0;
+}

IOT/Nivedita-R_NiveditaRai_2125it1079_2/GettingStarted/GradingSystem.cpp

@@ -0,0 +1,22 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int a;
+    cin>>a;
+    if(a>90)
+    cout<<"excellent"<<endl;
+    else if(a<=90 && a>80)
+    cout<<"good"<<endl;
+    else if(a>70 && a<=80)
+    cout<<"fair"<<endl;
+    else if(a>60 && a<=70)
+    cout<<"meets expectations"<<endl;
+    else
+    cout<<"below par"<<endl;
+
+
+    return 0;
+}

IOT/Nivedita-R_NiveditaRai_2125it1079_2/GettingStarted/IsANumberPrime.cpp

@@ -0,0 +1,31 @@
+#include <iostream>
+#include<cmath>
+using namespace std;
+int main(){
+    int t,i,j,n,c;
+    cin >> t;
+    if(t>=1 && t<=10000)
+    {
+        for (i=0;i<t;i++)
+    {
+        c=0;
+        cin>>n;
+        if(n>=2 && n<=pow(10,9))
+        {
+
+        for(j=1;j<=n;j++)
+        {
+            if(n%j==0)
+            c++;
+
+        }
+        if(c==2)
+        cout<<"prime"<<endl;
+        else
+        cout<<"not prime"<<endl;
+        }
+    }
+
+    } 
+
+}

IOT/Nivedita-R_NiveditaRai_2125it1079_2/GettingStarted/PrintAllPrimesTillN.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+#include<cmath>
+using namespace std;
+int main(int argc, char **argv){
+    int low, high,  i,j,c=0;
+    cin >> low >> high;
+    for(i=low;i<=high;i++)
+    {c=0;
+        for(j=2;j<=sqrt(i);j++)
+        {
+            if(i%j==0)
+            c++;
+        }
+        if(c==0)
+        cout<<i<<endl;
+    }
+return 0;
+
+}

IOT/Nivedita-R_NiveditaRai_2125it1079_2/GettingStarted/PrintFibonacciNumbersTillN.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+using namespace std;
+
+int main(int argc, char **argv)
+{
+    int n,c;
+    cin >> n;
+    int a=0,b=1;
+    cout<<a<<endl<<b<<endl;
+    for(int i=0;i<n-2;i++)
+    {
+        c=a+b;
+        cout<<c<<endl;
+        a=b;
+        b=c;
+    }
+
+
+}

IOT/Nivedita-R_NiveditaRai_2125it1079_2/GettingStarted/PrintZ.cpp

@@ -0,0 +1,29 @@
+
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+   int i,j,k;
+   for(i=0;i<5;i++)
+   {
+       for(j=4;j>=0;j--)
+       {
+           if(i==0 || i==4)
+           cout<<"*";
+           else
+           {
+               if(i==j)
+              cout<<"*";
+               else 
+               cout<<" ";
+           }
+
+       }
+         cout<<endl;
+   }
+
+    return 0;
+}
+