# C++ Program to Find Largest and Second Largest Number in 2D Array

Here is the C++ program to find largest and second largest number in a 2d array or matrix.

```#include<iostream>

using namespace std;

int main()
{
int a[5][5],big1=1,big2=0,n,m,i,j;
cout<<"Enter no of rows and columns(max 5):";
cin>>m>>n;
cout<<"Enter the array:\n";

for(i=0;i<m;i++)
for(j=0;j<n;++j)
cin>>a[i][j];

for(i=0;i<m;++i)
for(j=0;j<n;++j)
{
if(a[i][j]>big1)
big1=a[i][j];
}

for(i=0;i<m;++i)
for(j=0;j<n;++j)
{
if(a[i][j]>big2&&a[i][j]<big1)
big2=a[i][j];
}

cout<<"\nLargest number:"<<big1;
cout<<"\nSecond largest number:"<<big2;

return 0;
}```

Output

Enter no of rows and columns(max 5):3
3
Enter the array:
4 6 8
2 4 6
2 12 5
Largest number:12
Second largest number:8

### 5 thoughts on “C++ Program to Find Largest and Second Largest Number in 2D Array”

1. i would like to see thhis solution

find the maximum element in even rows of a matrix using C++ programming.

thank you

1. There was a little mistake in code, I have corrected it, now working fine. Thanks for mentioning the mistake.