Input numbers in 2d array and check symmetric matrix or not in C++
Two Dimensional Array - Question 10
In this question, we will see how to input numbers in a 3X3 integer matrix (2d array) and check whether it is a symmetric matrix or not in C++ programming. To know more about two dimensional array click on the two dimensional array lesson.
Q10) Write a program in C++ to input numbers in a 3X3 integer matrix (2d array) and check whether it is a symmetric matrix or not. Symmetric matrix is such a matrix whose row elements are exactly same as column elements.
Program
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int a[3][3], r,c,x=0;
cout<<"Enter 9 numbers\n";
for(r=0; r<3; r++)
{
for(c=0; c<3; c++)
{
cin>>a[r][c];
}
}
for(r=0; r<3; r++)
{
for(c=0; c<3; c++)
{
cout<<a[r][c]<<" ";
if(a[r][c]==a[c][r])
{
x++;
}
}
cout<<endl;
}
if(x==9)
{
cout<<"Symmetric Matrix";
}
else
{
cout<<"Not Symmetric Matrix";
}
return 0;
}Output
Enter 9 numbers 2 4 5 4 9 12 5 12 15 2 4 5 4 9 12 5 12 15 Symmetric Matrix
