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  1.  
  2. #include <stdio.h>
  3.  
  4. int main(void) {
  5. 	int a, n;
  6. 	int num[10];
  7. 	int i;
  8. 	int sum=0;
  9.  
  10. 	scanf("%d",&a);
  11. 	scanf("%d",&n);
  12.  
  13. 	num[0]=a;
  14.  
  15. 	for(i=1;i<n;i++){
  16. 		num[i]=num[i-1]*a;
  17. 	}
  18. 	for(i=0;i<n;i++){
  19. 		sum+=num[i];
  20. 	}
  21. 	printf("%d\n",sum);
  22. 	return 0;
  23. }
  24.  
Success #stdin #stdout 0s 5316KB
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https://ideone.com/wnSf4g
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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