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Merge Sort in C++

  Merge Sort in C++ Introduction Merge Sort is a popular sorting algorithm that follows the Divide and Conquer approach. It divides an array into smaller subarrays, recursively sorts those subarrays, and finally merges the sorted subarrays to produce a completely sorted array. In this tutorial, we will learn how to implement Merge Sort in C++ . The program divides the array into two halves using the mid index, recursively sorts both halves, and then combines them using the merge() function. Merge Sort has a time complexity of O(n log n) in the best, average, and worst cases. Table of Contents Algorithm C++ Program Input Sample Output Output Explanation Dry Run Flow of Execution Time Complexity Space Complexity Applications Key Points Interview Questions Frequently Asked Questions Keywords Conclusion Algorithm Start the program. Read the size of the array. Read the array elements from the user. Call the mer...
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C Program to Add Two Numbers Without '+' Operator

Binary Addition Without '+' in C

✅ C Program to Add Two Numbers Without '+' Operator

#include <stdio.h>

int main() {
    int a, b;
    printf("Enter two numbers:\n");
    scanf("%d %d", &a, &b);

    while (b != 0) {
        int carry = a & b;     // Calculate carry
        a = a ^ b;             // Add without carrying
        b = carry << 1;        // Shift carry to the left
    }

    printf("Sum is: %d\n", a);
    return 0;
}

📘 Explanation:

This program adds two numbers without using the + operator. It uses bitwise operations:

  • a ^ b calculates the sum without carry
  • a & b finds the carry
  • carry << 1 shifts the carry to the next bit
  • The loop continues until there’s no carry

🖥️ Sample Output:

Enter two numbers:
5 3
Sum is: 8

🔑 Keywords:

add without plus, bitwise sum, binary addition, C program without + operator, xor carry logic, beginner bitwise program

📌 Hashtags:

#CProgramming #BitwiseOperations #BinaryAddition #NoPlusOperator #XORLogic #BeginnerC

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