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  1. #include <stdio.h>
  2. int sum(int n){
  3. 	int i,b=n;
  4. 	int a=n;
  5. 	for(i=n-1;i>0;i--){
  6. 		a=n+a*10;
  7. 		b=b+a;
  8. 	}return b;
  9. }
  10. int main(void) {
  11. 	int n;
  12. 	scanf("%d",&n);
  13. 	printf("%d",sum(n));
  14. 	return 0;
  15. }
  16.  
Success #stdin #stdout 0.01s 5276KB
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https://ideone.com/BQC1ZJ
language:
C (gcc 8.3)
created:
44 days ago
visibility:
public

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