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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 Print Prime Numbers Between Two Numbers

C Program to Print Prime Numbers Between Two Numbers

✅ C Program to Print Prime Numbers Between Two Numbers

#include <stdio.h>
int main( )
{
    int start,end,count,i,j;
    printf("Enter the start and ending values of the prime number:\n");
    scanf("%d %d",&start,&end);
    
    for(i=start;i<end;i++)
    {
        count=0;
        for(j=1;j<=i;j++)
        {
            if(i%j==0)
            {
                count++;
            }
        }
        if(count==2)
        {
            printf("%d ",i);
        }
    }
}

📘 Explanation:

This program prints all prime numbers between two given numbers. A prime number is a number that has exactly two divisors: 1 and itself.

  • Take starting and ending range from the user.
  • For each number in the range, check how many divisors it has.
  • If the count of divisors is exactly 2, it is a prime number.
  • Print the number if it satisfies the prime condition.

🧾 Sample Output:

Enter the start and ending values of the prime number:
10 25
11 13 17 19 23

🔑 Keywords:

C program prime numbers between two numbers, prime number logic in C, number programs in C, C programming examples, beginner C coding problems

📌 Hashtags:

#CProgramming #PrimeNumbers #LearnC #CodingForBeginners #ForLoop #NumberPrograms #1printf

🔍 Search Description:

Learn how to print prime numbers between two given numbers in C using for loop. Simple and beginner-friendly program with explanation and sample output.

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