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  1. #include <stdlib.h>
  2. #include <stdio.h>
  3. #include <math.h>
  4.  
  5. int main(void) {
  6.     int a, query, in , n;
  7.     scanf("%d", &query);
  8.     int sum[query+1];
  9.  
  10.     for (a = 1; a <= query; a++) {
  11.         sum[a] = 0;
  12.         scanf("%d", &in);
  13.         int b[in+1];
  14.         for (n = 1; n <= in ; n++) {
  15.             b[n] = 1 + 7 * (n - 1) + 6 * (n - 1) * (n - 2) + (n - 1) * (n - 2) * (n - 3);
  16.             sum[a] = sum[a] + b[n];
  17.         }
  18.     }
  19.  
  20.     for (a = 1; a <= query; a++) {
  21.         printf("%d\n", sum[a]);
  22.     }
  23.  
  24.     return 0;
  25. }
Success #stdin #stdout 0s 9432KB
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stdin
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2 2 5
stdout
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9
225
https://ideone.com/aysSNw
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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