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  1. #include <stdio.h>
  2. int main(void)
  3. {
  4. int a, n, i;
  5. int sum = 0;
  6. int x;
  7. scanf("%d %d", &a, &n);
  8. x = 1;
  9.  for (i = 0; i < n; i++)
  10. {
  11. x *= a;
  12. sum += x;
  13. }
  14. printf("%d\n", sum);
  15. return 0;
  16. }
Success #stdin #stdout 0.01s 5280KB
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5
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stdout
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155
https://ideone.com/s74adO
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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