题解 | 创建二维动态数组

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    // write your code here......
    int**arr=new int*[n];
    for(int i=0;i<n;i++){
        arr[i]=new int[n];
        for(int j=0;j<n;j++){
            arr[i][j]={i+j};
            cout << arr[i][j] <<' ';
        }
        cout << endl;
    }
    for(int i=0;i<n;i++){
        delete[]arr[i];
    }
    delete[]arr;
    return 0;
}