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  1. #include <stdio.h>
  2. 	void calculate(int (*a)[4]){
  3. 	int sum[3];  // 行の数に合わせて3要素の配列を用意
  4.  
  5.     for (int i = 0; i < 3; i++) {
  6.         sum[i] = 0;
  7.         for (int j = 0; j < 4; j++) {
  8.             sum[i] += a[i][j];
  9.         }
  10.     }
  11. for (int i = 0; i < 3; i++) {
  12.         printf("Row %d sum = %d\n", i, sum[i]);
  13.     }
  14. }
  15.  
  16. int main(void) {
  17. 	int a[3][4] = {
  18.         {1, 2, 3, 4},
  19.         {5, 6, 7, 8},
  20.         {9, 10, 11, 12}
  21.     };
  22.  
  23.     calculate(a);
  24.  
  25.     return 0;
  26. }
  27.  
Success #stdin #stdout 0s 5284KB
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stdin
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Standard input is empty
stdout
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Row 0 sum = 10
Row 1 sum = 26
Row 2 sum = 42
https://ideone.com/bX2yZb
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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