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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.  
  5. 	int a;
  6. 	int n;
  7. 	scanf("%d%d", &a, &n);
  8.  
  9. 	int sum = 1;
  10. 	int current = 1;
  11.  
  12. 	for(int i = 0; i < n; ++i) {
  13. 		current *= a;
  14. 		sum += current;
  15. 	}
  16.  
  17. 	printf("%d", sum);
  18.  
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 4420KB
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stdout
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https://ideone.com/hvHHBp
language:
C (gcc 8.3)
created:
4 years ago
visibility:
public

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