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  1. #include <stdio.h>
  2. int sum(int n) {
  3. if (n==0)
  4. return 0;
  5.  
  6.  else 
  7.  return  n+sum(n-1);}
  8.  
  9.  
  10. int main(void) {
  11. 	int n;
  12. 	printf("enter a number : " );
  13. 	scanf("%d",&n);
  14. 	printf("sum from 0 to %d is:%d\n ",n,sum(n));
  15.  
  16. 	// your code goes here
  17. 	return 0;
  18. }
  19.  
Success #stdin #stdout 0s 5316KB
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stdin
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Standard input is empty
stdout
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enter a number : sum from 0 to 32767 is:536854528
https://ideone.com/7Ht1XH
language:
C (gcc 8.3)
created:
13 hours ago
visibility:
public

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