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  1. #include <stdio.h>
  2.  
  3. void calculate(int (*a)[4]);
  4.  
  5. int main(void)
  6. {
  7.     int a[3][4] = {
  8.         {1, 2, 3, 4},
  9.         {5, 6, 7, 8},
  10.         {9,10,11,12}
  11.     };
  12.  
  13.     calculate(a);
  14.  
  15.     return 0;
  16. }
  17.  
  18. void calculate(int (*a)[4])
  19. {
  20.     int sum[3] = {0};
  21.  
  22.     for (int i = 0; i < 3; i++) {
  23.         for (int j = 0; j < 4; j++) {
  24.             sum[i] += a[i][j];
  25.         }
  26.     }
  27.     for (int i = 0; i < 3; i++) {
  28.         printf("sum[%d] = %d\n", i, sum[i]);
  29.     }
  30. }
  31.  
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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sum[0] = 10
sum[1] = 26
sum[2] = 42
https://ideone.com/lKndPA
language:
C (gcc 8.3)
created:
8 hours ago
visibility:
public

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