Hello coders, today we are going to solve Black cells in a chessboard Codechef Solution.
Problem
Given nn (nn is even), determine the number of black cells in an n×nn×n chessboard.
Input Format
The only line of the input contains a single integer nn.
Output Format
Output the number of black cells in an n×nn×n chessboard.
Constraints
- 2≤n≤1002≤n≤100
- nn is even
Sample Input 1
8
Sample Output 1
32
Explanation
There are 3232 black cells and 3232 white cells in an 8×88×8 chessboard. So the answer is 3232.
Black cells in a chessboard CodeChef Solution in JAVA
import java.util.*;
import java.lang.*;
import java.io.*;
class Codechef
{
public static void main (String[] args) throws java.lang.Exception
{
Scanner sc=new Scanner(System.in);
int a=sc.nextInt();
if(a%2==0)
{
int b=(a*a)/2;
System.out.println(b);
}
}
}Black cells in a chessboard CodeChef Solution in CPP
#include <iostream>
using namespace std;
int main() {
// your code goes here
int n, a, b;
cin >> n;
a = n * n;
b = a / 2;
cout << b;
return 0;
}Black cells in a chessboard CodeChef Solution in Python
n=int(input()) print((n*n)//2)
Disclaimer: The above Problem (Black cells in a chessboard ) is generated by CodeChef but the solution is provided by Chase2learn.This tutorial is only for Educational and Learning purpose.