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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int a,i,sum=0;
  5. 	i=1;
  6. 	scanf("%d",&a);
  7. 	while(i<=a){
  8. 		sum=sum+i;
  9. 	i++;
  10. 	}
  11. 		printf("%d",sum);
  12. 	return 0;
  13. }
  14.  
Success #stdin #stdout 0s 5320KB
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https://ideone.com/UgpHKC
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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