3D pointer array

#include <stdio.h>
#include <stdlib.h>

int main() {
    int x = 5, y = 7, z = 3, val = 0;

    int ***dp = malloc(sizeof(int **) * x);
    for (int i = 0; i < x; i++) {
        dp[i] = malloc(sizeof(int *) * y);
        for (int j = 0; j < y; j++) {
            dp[i][j] = malloc(sizeof(int) * z);
            for (int k = 0; k < z; k++)
                dp[i][j][k] = val++;
        }
    }

    for (int i = 0; i < x; i++) {
        for (int j = 0; j < y; j++) {
            for (int k = 0; k < z; k++)
                printf("%d ", dp[i][j][k]);
            printf("\n");
            free(dp[i][j]);
        }
        printf("\n");
    }

    return 0;
}