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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int n,i,sum=0;
  5. 	scanf("%d",&n);
  6. 	for(i=1;i<=n;i++){
  7. 	sum=sum+i;
  8. 	}
  9. 	printf("%d",sum);
  10.  
  11. 	return 0;
  12. }
  13.  
Success #stdin #stdout 0s 5324KB
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https://ideone.com/p1LY0p
language:
C (gcc 8.3)
created:
14 hours ago
visibility:
public

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