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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int** ordena(int **v, int tam) {
  5.     int i, j,aux;
  6.     int swap[3];
  7.     for (i = 0; i < tam-1; i++) {
  8.         aux = i;
  9.         for (j = (i+1); j < tam; j++) {
  10.             if(v[j][1] < v[aux][1]) {
  11.                 aux = j;
  12.             }
  13.         }
  14.         if (i != aux) {
  15.             swap[0] = v[i][0];
  16.             swap[1] = v[i][1];
  17.             swap[2] = v[i][2];
  18.             v[i][0] = v[aux][0];
  19.             v[i][1] = v[aux][1];
  20.             v[i][2] = v[aux][2];
  21.             v[aux][0] = swap[0];
  22.             v[aux][1] = swap[1];
  23.             v[aux][2] = swap[2];
  24.         }
  25.     }
  26.     return v;
  27. }
  28.  
  29. int main() {
  30.  
  31.     int **array2d = malloc(sizeof(*array2d) * 4);
  32.     array2d[0] = malloc(sizeof(*array2d[0]) * 3);
  33.     array2d[1] = malloc(sizeof(*array2d[0]) * 3);
  34.     array2d[2] = malloc(sizeof(*array2d[0]) * 3);
  35.     array2d[3] = malloc(sizeof(*array2d[0]) * 3);
  36.  
  37.     array2d[0][0] = 2;
  38.     array2d[0][1] = 3;
  39.     array2d[0][2] = 4;
  40.  
  41.     array2d[1][0] = 3;
  42.     array2d[1][1] = 7;
  43.     array2d[1][2] = 9;
  44.  
  45.     array2d[2][0] = 1;
  46.     array2d[2][1] = 1;
  47.     array2d[2][2] = 1;
  48.  
  49.     array2d[3][0] = 5;
  50.     array2d[3][1] = 2;
  51.     array2d[3][2] = 4;
  52.  
  53.     ordena(array2d, 4);
  54.  
  55.     int i,j;
  56.     for (i = 0; i < 4; ++i) {
  57.         for (j = 0; j < 3; ++j) {
  58.             printf("%d ", array2d[i][j]);
  59.         }
  60.  
  61.         printf("\n");
  62.     }
  63.  
  64.     return 0;
  65. }
  66.  
Success #stdin #stdout 0s 4536KB
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stdin
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Standard input is empty
stdout
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1 1 1 
5 2 4 
2 3 4 
3 7 9
https://ideone.com/KO8hK0
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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