大蛇程序

#define _CRT_SECURE_NO_WARNINGS

#include<stdio.h>

#include <stdlib.h>

#define  M 10

void main()

{

int a[M][M] = {0};

int data = 1;

int N = 0;

scanf("%d",&N);

printf("N is %d\n",N);

for (int i = 0, j = 0, k = 0; k < (N + 1) / 2;k++)

{

while (j<N-k)//控制层数

{

a[i][j] = data;//赋值

j++;//往右边移动

data++;

}

j--;//退回

i++;//转向

while (i<N-k)

{

a[i][j] = data;

i++;

data++;

}

i--;

j--;//退回转向

while (j >k-1 )//减去一层

{

a[i][j] = data;

j--;

data++;

}

j++;

i--;

while (i>k)

{

a[i][j] = data;

i--;

data++;

}

i++;

j++;

}

//打印输出

for (int i = 0; i < N; i++)

{

for (int j = 0; j < N; j++)

{

printf("%4d", a[i][j]);

}

printf("\n");

}

system("pause");

}