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  1. #include <stdio.h>
  2.  
  3. void calculate(int (*a)[4], int sum[3]) {
  4.     for(int i = 0; i < 3; i++){
  5.         sum[i] = 0;
  6.         for(int j = 0; j < 4; j++){
  7.             sum[i] += a[i][j];
  8.         }
  9.     }
  10. }
  11.  
  12. int main(void){
  13.     int a[3][4] = {
  14.         {1, 2, 3, 4},
  15.         {5, 6, 7, 8},
  16.         {9,10,11,12}
  17.     };
  18.  
  19.     int sum[3];
  20.  
  21.     calculate(a, sum);
  22.  
  23.     for(int i = 0; i < 3; i++){
  24.         printf("行 %d の合計 = %d\n", i, sum[i]);
  25.     }
  26.  
  27.     return 0;
  28. }
  29.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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行 0 の合計 = 10
行 1 の合計 = 26
行 2 の合計 = 42
https://ideone.com/wE5h2m
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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