题解

#include<bits/stdc++.h>
using namespace std;
int n,m,len;
int main()
{
    cin>>n>>m;
    len = n*m;
    string str[len];
    for(int i = 0;i<len;i++)    
    {
        cin>>str[i];
    }
    for(int i = 0;i<len;i++)
    {
        if(i % m == 0 and i>0)
        {
            cout<<endl;
            cout<<str[i]<<" ";
        }
        else
        {
            cout<<str[i]<<" ";
        }
    }
    return 0;
}