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  1. #include <stdio.h>
  2.  
  3. #define ROWS 3
  4. #define COLS 3
  5.  
  6. void main() 
  7. {
  8.     int arr[ROWS][COLS] = {
  9.         {3, 1, 2},
  10.         {4, 5, 6},
  11.         {7, 8, 9}
  12.     };
  13.  
  14.     int has_saddle = 0; 
  15.     for (int i = 0; i < ROWS; i++) 
  16.     {
  17.         int max_in_row = arr[i][0];
  18.         int col_idx = 0;
  19.         for (int j = 1; j < COLS; j++) 
  20.         {
  21.             if (arr[i][j] > max_in_row) 
  22.             {
  23.                 max_in_row = arr[i][j];
  24.                 col_idx = j;
  25.             }
  26.         }
  27.  
  28.         int is_min_in_col = 1;
  29.         for (int k = 0; k < ROWS; k++) 
  30.         {
  31.             if (arr[k][col_idx] < max_in_row) 
  32.             {
  33.                 is_min_in_col = 0;
  34.                 break;
  35.             }
  36.         }
  37.  
  38.         if (is_min_in_col) 
  39.         {
  40.             printf("数点位置：(%d, %d)，值为：%d\n", i, col_idx, max_in_row);
  41.             has_saddle = 1;
  42.         }
  43.     }
  44.  
  45.     if (!has_saddle) {
  46.         printf("该二维数组中没有数点。\n");
  47.     }
  48.  
  49. }
Success #stdin #stdout 0s 5284KB
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Standard input is empty
stdout
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数点位置：(0, 0)，值为：3
https://ideone.com/bfnfGn
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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