Binary to Decimal Conversion in C

August 16, 2026

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...

✅ Binary to Decimal Conversion in C

#include<stdio.h>
int main( )
{
    int num, decimal = 0, remainder, j = 1;
    printf("Enter binary number:\n");
    scanf("%d", &num);
    while(num != 0)
    {
        remainder = num % 10;
        decimal = decimal + remainder * j;
        j = j * 2;
        num = num / 10;
    }
    printf("The decimal value is %d\n", decimal);
}

📘 Explanation:

This program converts a binary number (input as an integer) into its decimal equivalent.
- It extracts each digit (right to left) using modulus and multiplies it by powers of 2.
- The value is added to a `decimal` variable.
- `%d` is used in printf to display the result in decimal format.

🧾 Sample Output:

Enter binary number:
1010
The decimal value is 10

🔑 Keywords:

Binary to Decimal, C Program for Number Conversion, Beginner C Code, scanf printf usage, while loop example, base-2 to base-10

📌 Hashtags:

#CProgramming #BinaryToDecimal #BeginnerCode #NumberConversion #whileLoop #scanf #printf #LogicInC

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