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  1. #include <stdio.h>
  2.  
  3. void calculate(int (*a)[4]) {
  4.     int sum[3] = {0};  
  5.     int i, j;
  6.  
  7.     for (i = 0; i < 3; i++) {
  8.         for (j = 0; j < 4; j++) {
  9.             sum[i] += a[i][j];
  10.         }
  11.     }
  12.  
  13.     for (i = 0; i < 3; i++) {
  14.         printf("%d行目の合計: %d\n", i + 1, sum[i]);
  15.     }
  16. }
  17.  
  18. int main(void) {
  19.     int a[3][4] = {
  20.         {1, 2, 3, 4},
  21.         {5, 6, 7, 8},
  22.         {9, 10, 11, 12}
  23.     };
  24.  
  25.     calculate(a);
  26.  
  27.     return 0;
  28. }
  29.  
Success #stdin #stdout 0s 5316KB
comments (?)
stdin 
Standard input is empty
stdout 
1行目の合計: 10
2行目の合計: 26
3行目の合計: 42
https://ideone.com/qRNSzG
language:
C (gcc 8.3)
created:
4 hours ago
visibility:
public

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