Help me in solving NUMREC problem

help
,
1

My issue

My code

#include <iostream>
using namespace std;

int main() {
	// your code goes here
	int k;
	cin>>k;
	while(k--){
	    int n,m;
	    cin>>n>>m;
	    
	    
	    
	}
	return 0;
}

Problem Link: CodeChef: Practical coding for everyone

2

@khushidesai_23

Its a simple maths pnc question we use to do in class 11th
the total number of rectangle possible and (((n+1)*(n))/2 )*(((m+1)*(m))/2);
now u have to subtract the rectangle   having (n,m) cell which will be nothing but n * m;
so just subtract the n*m  from the total number of rectangles.
3

It’s showing partial_correct.