C++ 代码

#include<cstdio>
int q[110][110] ={0};
int main(){
    int dx[] ={0,1,0,-1},dy[] = {1,0,-1,0};
    int N,M;
    scanf("%d%d",&N,&M);
    int x =0,y=0,d =0;
    for(int i =1;i<=N*M;i++){
        q[x][y] = i;
        int a = x+dx[d],b = y+dy[d]; //a用来暂时测试是否到达边界
        if(a>=N || b>=M || a<0 || b<0 || q[a][b]){
            d = (d+1)%4;
            a = x+dx[d],b = y+dy[d];
        }
        x = a;
        y =b;
    }
        for(int i =0 ;i<N;i++){
            for(int j =0;j<M;j++){
                printf("%d ",q[i][j]);
            }
            printf("\n");
        }

    return 0;
}