基础练习 回形取数

解答代码

#include<iostream>#include<string>#include<cstdio>#include<cstring>#include<fstream>#include<cmath>#define N 201using namespace std;int main(){	int i,j,n,m;	int array[N][N];	//freopen("input9.txt","r",stdin);	memset(array,-1,sizeof(array));	scanf("%d%d",&m,&n);	for(i=0;i<m;i++)		for(j=0;j<n;j++)			scanf("%d",&array[i][j]);	int len=n*m;	int sum=0;	i=-1;j=0;	while(sum<len)	{		while(i+1<m &&array[i+1][j]!=-1)		{			PRintf("%d ",array[++i][j]);			array[i][j]=-1;			sum++;		}		while(j+1<n && array[i][j+1]!=-1)		{			printf("%d ",array[i][++j]);			array[i][j]=-1;			sum++;		}		while(i-1>=0 && array[i-1][j]!=-1)		{			printf("%d ",array[--i][j]);			array[i][j]=-1;			sum++;		}		while(j-1>=0 && array[i][j-1]!=-1)		{			printf("%d ",array[i][--j]);			array[i][j]=-1;			sum++;		}	}	return 0;}