Number of rectangles

Number of rectangles

Description

In a 3*2 rectangle, you can find 6 1*1 and 4 2*1 and 3 1*2 Rectangles and 2 2*2 and 2 3*1 and 1 3*2 rectangle, A total of 18 rectangles.

Returns A and B, and calculates the number of rectangles that can be found.

Input

There are multiple groups of input data (<10000) in this question. You must process the EOF.

Enter two integers A, B (1 <= A, B <= 2000)

Output

Output The number of rectangles.

Sample Input

1 2
2 3

Sample output

3
18

#include <iostream>#include <cstring>#include <cstdio>#include <algorithm>using namespace std;int main(){   long long n,m,sum;   while(cin>>n>>m)   {       sum=0;       for(int i=1;i<=n;i++)        for(int j=1;j<=m;j++)        {            sum+=i*j;        }        cout<<sum<<endl;   }  return 0;}

Number of rectangles in C Language

I don't know what the author means by saying "Yes is wrong.
I used VC ++ 6.0 to copy the landlord's code and compile and run it.
Test cases:
2 3
18
4 5
150
6 7
588

Which of the following is the number of Rectangles?

45, 48, 57
72, 95