#A-矩阵转置

https://ac.nowcoder.com/acm/contest/65507/A

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin>>n;
    vector<vector<int>>a(n,vector<int>(n));
    int i,j;
    for(i=0;i<n;i++)
        for(j=0;j<n;j++)
            cin>>a[i][j];
    //垂直翻转
   for(i=0;i<n/2;i++)
       swap(a[i],a[n-1-i]);
    //水平翻转
    for(i=0;i<n;i++)
        reverse(a[i].begin(),a[i].end());
    for(i=0;i<n;i++)
    {
        for(j=0;j<n;j++)
            cout<<a[i][j]<<" ";
        cout<<endl;
    }
        
}