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  1. #include <stdio.h>
  2.  
  3. int main(){
  4. 	int a,n,k=1,sum=0;
  5. 	scanf("%d %d",&a,&n);
  6. 	for(int i=1;i<=n;i++){
  7. 		k=k*a;
  8. 		sum=sum+k;
  9. 	}printf("%d",sum);
  10. 	return 0;
  11. }
Success #stdin #stdout 0s 5284KB
comments (?)
stdin 
5 3
stdout 
155
https://ideone.com/7ENG63
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

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