Merge branch 'MukulCode:master' into my-new-branch

2sum_by_Vishal.cpp

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+// Code in cpp to tell if there exists a pair in array whose
+// sum results in x.
+#include <iostream>
+using namespace std;
+
+// Function to print pairs
+void printPairs(int a[], int n, int x)
+{
+    int i;
+    int rem[x];
+    // initializing the rem values with 0's.
+    for (i = 0; i < x; i++)
+        rem[i] = 0;
+    // Perform the remainder operation only if the element
+    // is x, as numbers greater than x can't be used to get
+    // a sum x. Updating the count of remainders.
+    for (i = 0; i < n; i++)
+        if (a[i] < x)
+            rem[a[i] % x]++;
+
+    // Traversing the remainder list from start to middle to
+    // find pairs
+    for (i = 1; i < x / 2; i++) {
+        if (rem[i] > 0 && rem[x - i] > 0) {
+            // The elements with remainders i and x-i will
+            // result to a sum of x. Once we get two
+            // elements which add up to x , we print x and
+            // break.
+            cout << "Yes\n";
+            break;
+        }
+    }
+
+    // Once we reach middle of remainder array, we have to
+    // do operations based on x.
+    if (i >= x / 2) {
+        if (x % 2 == 0) {
+            // if x is even and we have more than 1 elements
+            // with remainder x/2, then we will have two
+            // distinct elements which add up to x. if we
+            // dont have more than 1 element, print "No".
+            if (rem[x / 2] > 1)
+                cout << "Yes\n";
+            else
+                cout << "No\n";
+        }
+        else {
+            // When x is odd we continue the same process
+            // which we did in previous loop.
+            if (rem[x / 2] > 0 && rem[x - x / 2] > 0)
+                cout << "Yes\n";
+            else
+                cout << "No\n";
+        }
+    }
+}
+
+
+int main()
+{
+    int A[] = { 1, 4, 45, 6, 10, 8 };
+    int n = 16;
+    int arr_size = sizeof(A) / sizeof(A[0]);
+
+    // Function calling
+    printPairs(A, arr_size, n);
+
+    return 0;
+}
+//Time Complexity== O(N+X);
+//Auxiliary Space: O(X)

Covidlivetracker

@@ -0,0 +1,68 @@
+import React, { useEffect, useState } from "react";
+import './covid.css'
+const Covid = () => {
+    const [data, setData] = useState([]);
+    const getCovidData = async () => {
+        try {
+            const res = await fetch('https://data.covid19india.org/data.json');
+            const actualData = await res.json();
+            console.log(actualData.statewise[0]);
+            setData(actualData.statewise[0]);
+        } catch(err){
+            console.log(err);
+        }
+    }
+
+useEffect(() =>{
+    getCovidData();
+}, []);
+return (
+    <>
+    <section>
+    <h1>🔴 LIVE COVID-19 </h1>
+    <h2> COVID-19 TRACKER DETAIL </h2>
+    <ul>
+        <li className="card 1">
+        <div className="card__main">
+        <div className="card__inner">
+        <p className="card__name"><span>OUR </span>COUNTRY</p>
+        <p className="card__total card__small"></p>INDIA</div>
+</div>
+        </li>
+        <li className="card 2">
+        <div className="card__main">
+        <div className="card__inner">
+        <p className="card__name"><span>TOTAL </span>RECOVERED</p>
+        <p className="card__total card__small"></p>{data.recovered}</div>
+</div>
+        </li><li className="card 3">
+        <div className="card__main">
+        <div className="card__inner">
+        <p className="card__name"><span>TOATL </span>CONFIRMED</p>
+        <p className="card__total card__small"></p>{data.confirmed}</div>
+</div>
+        </li><li className="card 4">
+        <div className="card__main">
+        <div className="card__inner">
+        <p className="card__name"><span>TOATL </span>DEATHS</p>
+        <p className="card__total card__small"></p>{data.deaths}</div>
+</div>
+        </li><li className="card 5">
+        <div className="card__main">
+        <div className="card__inner">
+        <p className="card__name"><span>TOATL </span>ACTIVE</p>
+        <p className="card__total card__small"></p>{data.active}</div>
+</div>
+        </li><li className="card 6">
+        <div className="card__main">
+        <div className="card__inner">
+        <p className="card__name"><span>LAST </span>UPDATED</p>
+        <p className="card__total card__small"></p>{data.lastupdatedtime}</div>
+</div>
+        </li>
+    </ul>
+    </section>
+    </>
+)
+}
+export default Covid

Currency_Converter.py

@@ -0,0 +1,97 @@
+import tkinter as tk
+from tkinter import *
+import tkinter.messagebox
+
+root = tk.Tk()
+
+root.title("Currency Conversion")
+
+Tops = Frame(root, bg='#e6e5e5', pady=2, width=1850, height=100, relief="ridge")
+Tops.grid(row=0, column=0)
+
+headlabel = tk.Label(Tops, font=('lato black', 19, 'bold'), text='  Currency Converter  ',
+                     bg='#e6e5e5', fg='black')
+headlabel.grid(row=1, column=0, sticky=W)
+
+variable1 = tk.StringVar(root)
+variable2 = tk.StringVar(root)
+
+variable1.set("currency")
+variable2.set("currency")
+
+
+def RealTimeCurrencyConversion():
+    from forex_python.converter import CurrencyRates
+    c = CurrencyRates()
+
+    from_currency = variable1.get()
+    to_currency = variable2.get()
+
+    if (Amount1_field.get() == ""):
+        tkinter.messagebox.showinfo("Error !!", "Amount Not Entered.\n Please a valid amount.")
+
+    elif (from_currency == "currency" or to_currency == "currency"):
+        tkinter.messagebox.showinfo("Error !!",
+                                    "Currency Not Selected.\n Please select FROM and TO Currency form menu.")
+
+    else:
+        new_amt = c.convert(from_currency, to_currency, float(Amount1_field.get()))
+        new_amount = float("{:.4f}".format(new_amt))
+        Amount2_field.insert(0, str(new_amount))
+
+
+def clear_all():
+    Amount1_field.delete(0, tk.END)
+    Amount2_field.delete(0, tk.END)
+
+
+CurrenyCode_list = ["INR", "USD", "CAD", "CNY", "DKK", "EUR"]
+
+root.configure(background='#e6e5e5')
+root.geometry("700x400")
+
+Label_1 = Label(root, font=('lato black', 27, 'bold'), text="", padx=2, pady=2, bg="#e6e5e5", fg="black")
+Label_1.grid(row=1, column=0, sticky=W)
+
+label1 = tk.Label(root, font=('lato black', 15, 'bold'), text="\t    Amount  :  ", bg="#e6e5e5", fg="black")
+label1.grid(row=2, column=0, sticky=W)
+
+label1 = tk.Label(root, font=('lato black', 15, 'bold'), text="\t    From Currency  :  ", bg="#e6e5e5", fg="black")
+label1.grid(row=3, column=0, sticky=W)
+
+label1 = tk.Label(root, font=('lato black', 15, 'bold'), text="\t    To Currency  :  ", bg="#e6e5e5", fg="black")
+label1.grid(row=4, column=0, sticky=W)
+
+label1 = tk.Label(root, font=('lato black', 15, 'bold'), text="\t    Converted Amount  :  ", bg="#e6e5e5", fg="black")
+label1.grid(row=8, column=0, sticky=W)
+
+Label_1 = Label(root, font=('lato black', 7, 'bold'), text="", padx=2, pady=2, bg="#e6e5e5", fg="black")
+Label_1.grid(row=5, column=0, sticky=W)
+
+Label_1 = Label(root, font=('lato black', 7, 'bold'), text="", padx=2, pady=2, bg="#e6e5e5", fg="black")
+Label_1.grid(row=7, column=0, sticky=W)
+
+FromCurrency_option = tk.OptionMenu(root, variable1, *CurrenyCode_list)
+ToCurrency_option = tk.OptionMenu(root, variable2, *CurrenyCode_list)
+
+FromCurrency_option.grid(row=3, column=0, ipadx=45, sticky=E)
+ToCurrency_option.grid(row=4, column=0, ipadx=45, sticky=E)
+
+Amount1_field = tk.Entry(root)
+Amount1_field.grid(row=2, column=0, ipadx=28, sticky=E)
+
+Amount2_field = tk.Entry(root)
+Amount2_field.grid(row=8, column=0, ipadx=31, sticky=E)
+
+Label_9 = Button(root, font=('arial', 15, 'bold'), text="   Convert  ", padx=2, pady=2, bg="lightblue", fg="white",
+                 command=RealTimeCurrencyConversion)
+Label_9.grid(row=6, column=0)
+
+Label_1 = Label(root, font=('lato black', 7, 'bold'), text="", padx=2, pady=2, bg="#e6e5e5", fg="black")
+Label_1.grid(row=9, column=0, sticky=W)
+
+Label_9 = Button(root, font=('arial', 15, 'bold'), text="   Clear All  ", padx=2, pady=2, bg="lightblue", fg="white",
+                 command=clear_all)
+Label_9.grid(row=10, column=0)
+
+root.mainloop()

Diff_Utility/README.md

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+# Diff Utility
+
+A diff utility takes in two files and command-line arguments and compares them for changes. The changes are then shown as output indication what has changed where.
+
+## How to get started?
+
+Any version of Python 3 is good enough to run this program. Additionally the ``rich`` package is required. Install it via the terminal.
+
+```
+pip install rich
+```
+
+Or
+
+```
+pip install -r requirements.txt
+```
+
+## Run the program
+
+Run the program from the terminal as follows:
+
+```
+python diff.py <file1.txt> <file2.txt>
+```
+
+Or on Linux do:
+
+```
+./diff.py <file1.txt> <file2.txt>
+```
+
+Screenshot:
+
+![pydiff](pydiff.jpg)

Diff_Utility/diff.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+
+# sys: for reading command-line arguments.
+# rich: for coloring the text.
+import sys
+from rich import print
+
+# Print Usage message if enough arguments are not passed.
+if len(sys.argv) < 3:
+    print("Usage:")
+    print("\tMust provide two file names as command-line arguments.")
+    print("\tdiff.py <orignal_file> <changed_file>")
+    exit(1)
+
+orignal = sys.argv[1]
+changed = sys.argv[2]
+
+cr = "bold red"
+cg = "bold green"
+
+# Read the contents of the files in lists.
+orignal_contents = open(orignal, "r").readlines()
+changed_contents = open(changed, "r").readlines()
+
+co = "green"
+sy = f"[bold {co}][+]"
+
+print()
+
+# Determine which file has changed much.
+if len(changed_contents) <= len(orignal_contents):
+    co = "red"
+    sy = f"[bold {co}][-]"
+    smallest_sloc, largest_sloc = changed_contents, orignal_contents
+else:
+    smallest_sloc, largest_sloc = orignal_contents, changed_contents
+
+# Go over all the lines to check the changes.
+for line in range(0, len(smallest_sloc)):
+    if orignal_contents[line] == changed_contents[line]:
+        # Ignore if the lines are same.
+        continue
+    else:
+        # Display the changes on the respective lines of the files.
+        oc = orignal_contents[line]
+        cc = changed_contents[line]
+        print(f"[{cr}][-] Line {line + 1}:[{cr}] {oc}", end="")
+        print(f"[{cg}][+] Line {line + 1}:[{cg}] {cc}")
+
+        # Show the additions or deletions for the file that is the largest.
+        if line == len(smallest_sloc) - 1:
+            for new_line in range(line + 1, len(largest_sloc)):
+                ls = largest_sloc[new_line]
+                print(f"{sy} Line {new_line + 1}:[bold {co}] {ls}")

Factorial

@@ -0,0 +1,20 @@
+// Factorial for an Integer 
+
+const number = parseInt(prompt('Enter a Integer :  '));
+//condition
+
+if(number < 0){
+console.log('Error! Factorial for negative number does not exist.');
+}
+
+else if(number == 0) {
+console.log(`The factorial of ${number} is 1.`);
+}
+
+else { let factorial = 1;
+      for(i=1; i<= number; i++) 
+      {
+      factorial *= i;
+      }
+      console.log(`The factorial of ${number} is ${fact}.`);
+}