C++ Program to Find Highest and Lowest Element of a Matrix

#include<iostream>

using namespace std;

int main()
{
	int m,n,a[10][10],i,j,high,low;
	cout<<"Enter no. of rows and coloumns:";
	cin>>m>>n;
	cout<<"\nEnter matrix:\n";
	
	for(i=0;i<m;++i)
	{
		for(j=0;j<n;++j)
		cin>>a[i][j];
	}

	high=a[0][0];
	low=a[0][0];
	
	for(i=0;i<m;++i)
	{
		for(j=0;j<n;++j)
		{
			if(a[i][j]>high)
				high=a[i][j];
			else
				if(a[i][j]<low)
					low=a[i][j];
		}
	}
	
	cout<<"\nHeighst Element:"<<high<<"\nLowest Element:"<<low<<"\n";

	return 0;
}

Enter matrix:
3 5 9
15 6 0
12 4 7

Highest Element:15
Lowest Element:0