Question

I want to have a large 2 dimensional array such like

int myArray[10000][2];

I was told that the array built in such way is not appropriate, and should use malloc to build in heap. Could someone show me how to accomplish this? thanks!

Answer 1

#include <stdlib.h>

//alloc

int **vv = malloc(2 * sizeof(int *));
for(int i = 0; i < 2; i++)
   vv[i] = malloc(10000 * sizeof(int));

//free

for(int i = 0; i < 2; i++)
    free(vv[i]);
free(vv);