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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int n, i;
  5.     long long product = 1;
  6.  
  7.     printf("Enter the value of n: \n ");
  8.     scanf("%d", &n);
  9.  
  10.     for(i = 2; i <= n; i += 2) {
  11.         product *= i;
  12.     }
  13.  
  14.     printf("Product of even numbers from 1 to %d = %lld\n", n, product);
  15.     return 0;
  16. }
  17.  
Success #stdin #stdout 0s 5276KB
comments (?)
stdin 
4
stdout 
Enter the value of n: 
 Product of even numbers from 1 to 4 = 8
https://ideone.com/YTt14D
sum of n even no.
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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