2. C++ program to Sum of all elements of matrix of size m x n

on

#include<iostream>
using namespace std;

int main()
{
int r, c, sum=0;
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”;
sum = sum + arr1[i][j];
}
cout<<endl;
}
cout<<“\nSum of all elements = “<<sum;
}

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