1. C++ program to read a matrix of size rxc from the keyboard and display the same on the screen

on
#include<iostream>
using namespace std;

int main()
{
    int r, c;
    cout<<"Enter rows and Column of Matrix ";
    cin>>r>>c;
    int arr1[r][c];
    for(int i=0;i<r;i++)
    {
        for(int j=0;j<c;j++)
            cin>>arr1[i][j];
    }
    cout<<"You have entered:: \n";
    for(int i=0;i<r;i++)
    {
        for(int j=0;j<c;j++)
            cout<<arr1[i][j]<<"\t";
        cout<<endl;
    }

}

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