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Mastering Hollow Square Patterns in C: Stars, Numbers, Alphabets & Binary

πŸ”’ C Program to Print Hollow Continuous Number Square πŸ“„ Source Code: #include <stdio.h> int main() { int num, k = 0; printf("Enter the number:\n"); scanf("%d", &num); for(int i = 1; i <= num; i++) { for(int j = 1; j <= num; j++) { if(i == 1 || i == num || j == 1 || j == num) { // k increments sequentially only along the borders printf("%d ", k++); } else { printf(" "); } } printf("\n"); } return 0; } πŸ“‹ Copy Code πŸ’» Expected Output (Input: 5): Enter the number: 5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 πŸ”’ C Program to Print Standard Hollow Binary Row Square πŸ“„ Source Code (Fixed Specifier): #include <stdio.h> int main() { ...

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);
        }
    }
}
  

πŸ“˜ 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
  

πŸ”‘ Keywords:

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

πŸ“Œ Hashtags:

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

πŸ” 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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