Hello Programmers In this post, you will know how to solve the Chef and Chocolate Codechef Solution.
One more thing to add, don’t directly look for the solutions, first try to solve the problems of Codechef by yourself. If you find any difficulty after trying several times, then you can look for solutions.
Problem
Chef has a standard chocolate of n by m pieces. More formally, chocolate is a rectangular plate consisting of n rows and m columns.
Here you can see an example of a standard 5 by 7 chocolate.
He has two friends and they will play with this chocolate. First friend takes the chocolate and cuts it into two parts by making either a horizontal or vertical cut. Then, the second friend takes one of the available pieces and divides into two parts by either making a horizontal or vertical cut. Then the turn of first friend comes and he can pick any block of the available chocolates and do the same thing again. The player who cannot make a turn loses.
Now Chef is interested in finding which of his friends will win if both of them play optimally. Output “Yes”, if the friend who plays first will win, otherwise print “No”.
Input
The first line of the input contains an integer T denoting the number of test cases. The description of T test cases follows.
The only line of each test case contains two space separated integers n and m – the sizes of the chocolate.
Output
For each test case, output a single line containing one word “Yes” (without quotes) if there is a sequence of moves leading to the winning of the person who moves first and “No” (without quotes) otherwise.
Constraints
- 1 ≤ T ≤ 100
- 1 ≤ n, m ≤ 109
Subtasks
Subtask #1 (10 points):
- 1 ≤ n, m ≤ 10
Subtask #2 (30 points):
- n = 1 or m = 1
Subtask #3 (60 points): No additional constraints
Example
Input: 2 1 2 1 3 Output: Yes No
Explanation
Example case 1. There is only one possible move, so the second player even won’t have a chance to make move.
Example case 2. There are only two ways first player can make first move, after each of them only one move left, so the first player cannot win.
Chef and Chocolate CodeChef Solution in JAVA
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
public static void main (String[] args) throws java.lang.Exception
{
// your code goes here
Scanner sc=new Scanner(System.in);
int t=sc.nextInt();
while(t-->0){
int n=sc.nextInt();
int m=sc.nextInt();
int pro=n*m;
if(pro%2==0){
System.out.println("Yes");
}
else{
System.out.println("No");
}
}
}
}
Chef and Chocolate CodeChef Solution in CPP
#include <iostream>
using namespace std;
int main() {
int t;
cin>>t;
while(t--)
{
int n,m;
cin>>n>>m;
if((n*m)%2==0)
{
cout<<"Yes\n";
}
else
cout<<"No\n";
}
return 0;
}
Chef and Chocolate CodeChef Solution in Python
total_testcases = int(input())
for testcase in range(total_testcases):
n, m = map(int, input().split())
if (n * m) % 2 == 0:
print("Yes")
else:
print("No")Disclaimer: The above Problem (Chef and Chocolate) is generated by CodeChef but the solution is provided by BrokenProgrammers. This tutorial is only for Educational and Learning purpose.
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