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  1. #include <stdio.h>
  2.  
  3. int main(void)
  4. {
  5.     int a, n, i;
  6.     int sum = 0;
  7.     int x;
  8.  
  9. scanf("%d %d", &a, &n);
  10. x = 1;
  11.  
  12.  for (i = 0; i < n; i++)
  13. {
  14. x *= a;
  15. sum += x;
  16. }
  17.     printf("%d\n", sum);
  18. return 0;
  19. }
Success #stdin #stdout 0s 5304KB
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5
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stdout
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https://ideone.com/V6vRhK
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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