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# Chef and NextGen CodeChef Solution

## Problem – Chef and NextGen CodeChef Solution

Chef is currently working for a secret research group called NEXTGEN. While the rest of the world is still in search of a way to utilize Helium-3 as a fuel, NEXTGEN scientists have been able to achieve 2 major milestones:

1. Finding a way to make a nuclear reactor that will be able to utilize Helium-3 as a fuel
2. Obtaining every bit of Helium-3 from the moon’s surface

Moving forward, the project requires some government funding for completion, which comes under one condition: to prove its worth, the project should power Chefland by generating at least A units of power each year for the next B years.

Help Chef determine whether the group will get funded assuming that the moon has X grams of Helium-3 and 1 gram of Helium-3 can provide Y units of power.

### Input Format

• The first line of input contains an integer T, the number of testcases. The description of T test cases follows.
• Each test case consists of a single line of input, containing four space-separated integers A,B,X,Y respectively.

### Output Format

For each test case print on a single line the answer — `Yes` if NEXTGEN satisfies the government’s minimum requirements for funding and `No` otherwise.

You may print each character of the answer string in either uppercase or lowercase (for example, the strings `"yEs"``"yes"``"Yes"` and `"YES"` will all be treated as identical).

### Constraints

• 1≤T≤1000
• 1≤A,B,X,Y,≤1000

Subtask #1 (100 points): Original constraints

### Sample 1:

``````Input: 4
1 2 3 4
4 3 2 1
2 18 9 4
1 100 2 49
Output: Yes
No
Yes
No``````

### Explanation:

Test case 1: Chefland requires A=1 units of power for the next B=2 years. In total, the moon must be capable of providing AB=2 units of power. There are in total X=3 grams of Helium-3 on the moon which is capable of providing XY=12 units of power. 12>2, so the project satisfies the minimum requirements for funding. Thus, the answer is `Yes`.

Test case 2: The total amount of power needed by Chefland is AB=12, whereas the total that can be provided by the Helium-3 present on the moon is XY=2, which is insufficient to receive funding, so the answer is `No`.

Test case 3: The total amount of power needed by Chefland is AB=2⋅18=36, and the total that can be provided by the Helium-3 present on the moon is XY=9⋅4=36, which is sufficient to receive funding, so the answer is `Yes`.

Test case 4: The total amount of power needed by Chefland is AB=1⋅100=100, and the total that can be provided by the Helium-3 present on the moon is XY=2⋅49=98, which is insufficient to receive funding, so the answer is `No`.

## Chef and NextGen CodeChef Solution in C++17

``````#include <iostream>
using namespace std;

int main() {
int t;
cin>>t;
while(t--){
int a,b,x,y;
cin>>a>>b>>x>>y;
if (a * b <= x * y ) {
cout<<"yes"<<endl;
}
else{
cout<<"no"<<endl;
}
}
return 0;
}
``````

## Chef and NextGen CodeChef Solution in Pyth 3

``````# cook your dish here
for _ in range(int(input())):
a,b,x,y=map(int,input().split())
if x*y >= a*b:
print('YES')
else:
print('NO')``````

## Chef and NextGen CodeChef Solution in Java

``````/* package codechef; // don't place package name! */

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
{
Scanner sc=new Scanner(System.in);
int T=sc.nextInt();
for(int i=0;i<T;i++){
int a=sc.nextInt();
int b=sc.nextInt();
int c=sc.nextInt();
int d=sc.nextInt();
if((c*d)>=(a*b)){
System.out.println("Yes");
}
else{
System.out.println("NO");
}
}
}
}
``````
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