蓝桥杯基础练习VIP-回形取数 （C++代码）

解题思路:





注意事项:





参考代码:

#include<iostream>

using namespace std;

int main()

{

int a[200][200];

int m,n,i,j,s;

while(cin>>m>>n)

{

for(i=0;i<m;i++)

{

for(j=0;j<n;j++)

{

cin>>a[i][j];

}

}

s=m*n;

i=-1,j=0;

while(s)

{

while(++i<m&&a[i][j]!=-1)

{

cout<<a[i][j]<<" ";

a[i][j]=-1;

s--;

}

i--;

while(++j<n&&a[i][j]!=-1)

{

cout<<a[i][j]<<" ";

a[i][j]=-1;

s--;

}

j--; 

while(--i>=0&&a[i][j]!=-1)

{

cout<<a[i][j]<<" ";

a[i][j]=-1;

s--;

}

i++;

while(--j>=0&&a[i][j]!=-1)

{

cout<<a[i][j]<<" ";

a[i][j]=-1;

s--;

}

j++;

}

cout<<endl;

}

}