> ^ This is wrong. Should be > > int **table1=malloc(10000000*sizeof(int**)); > > The same error occurs several times. > > You also need > > if (!table1 || !table1_aux) > perror (""); > LOL, you've got to be kidding us :) "table1" is pointer to an array of (int *). That's why it has type (int **). Alexey