Input numbers in 2d array and check sum of each row is same or not in C++
Two Dimensional Array - Question 8
In this question, we will see how to input numbers in a 3X3 integer matrix (2d array) and check whether the sum of each row is same or not in C++ programming. To know more about two dimensional array click on the two dimensional array lesson.
Q8) Write a program in C++ to input numbers in a 3X3 integer matrix (2d array) and check whether the sum of each row is same or not.
Program
#include <iostream>
#include <conio.h>
using namespace std;
int main()
{
int a[3][3], r,c,rs,frs,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++)
{
rs=0;
for(c=0; c<3; c++)
{
cout<<a[r][c]<<" ";
rs=rs+a[r][c];
}
cout<<" Row sum = "<<rs<<endl;
if(r==0)
{
frs=rs; // store the first row sum in frs variable
}
else if(frs!=rs)
{
x=1;
}
}
if(x==0)
{
cout<<"Sum of each row is same";
}
else
{
cout<<"Sum of each row is not same";
}
return 0;
}Output
Enter 9 numbers 5 5 5 5 5 5 5 5 5 5 5 5 Row sum = 15 5 5 5 Row sum = 15 5 5 5 Row sum = 15 Sum of each row is same
