如何从C中的函数返回二维数组

Question

在我的下面示例代码中：

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



int *find_degree(int *triangles, int m) {


    int set[m * 3][2];
    // do some stuff here and store some values in a two dimentional array called set

    }

    return set;//I think it is not the right way to do 

}

int create_ploc(int *triangles, int m) {



    int *set;

    // trouble here , can not return the two dimentional array here from find_degree function
    set= find_degree(triangles,m);


    return 1;
}

int main() {

    int point[6][3];

    point[0][0] = 2;
    point[0][1] = 4;
    point[0][2] = 6;

    point[1][0] = 4;
    point[1][1] = 2;
    point[1][2] = 3;

    point[2][0] = 1;
    point[2][1] = 3;
    point[2][2] = 6;

    point[3][0] = 2;
    point[3][1] = 4;
    point[3][2] = 1;

    point[4][0] = 8;
    point[4][1] = 6;
    point[4][2] = 7;

    point[5][0] = 2;
    point[5][1] = 7;
    point[5][2] = 3;

    create_ploc(point, 6);

}

我试图从find_degree函数返回一个二维数组的地址，但似乎这不是正确的方法。有什么建议如何从find_degree函数返回2d数组的地址？