# CodeChef - Chef and NextGen

**Problem**

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.

- Finding a way to make a nuclear reactor that will be able to utilize Helium-3 as a fuel
- 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

*years.*

`B`

Help Chef determine whether the group will get funded assuming that the moon has * X* grams of Helium-3 and 11 gram of Helium-3 can provide

*units of power.*

`Y`

**Input Format**

- The first line of input contains an integer
, the number of testcases. The description of`T`

test cases follows.`T`

- Each test case consists of a single line of input, containing four space-separated integers
,`A`

,`B`

,`X`

respectively.`Y`

**Output Format**

For each test case print on a single line the answer â€” `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

**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 *A*â‹…*B *= 2

units of power. There are in total *X *= 3

grams of Helium-3 on the moon which is capable of providing *X*â‹…*Y *= 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

*A*â‹…*B *= 12

, whereas the total that can be provided by the Helium-3 present on the moon is *X*â‹…*Y *= 2

, which is insufficient to receive funding, so the answer is `No`

.** Test case 3:** The total amount of power needed by Chefland is

*A*â‹…*B *= 2â‹…18 = 36

, and the total that can be provided by the Helium-3 present on the moon is *X*â‹…*Y *= 9â‹…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

*A*â‹…

*B*= 1â‹…100 = 100, and the total that can be provided by the Helium-3 present on the moon is

*X*â‹…

*Y*= 2â‹…49 = 98, which is insufficient to receive funding, so the answer is

`No`

.## Solution of Java:

```
import java.util.*;
import java.lang.*;
import java.io.*;
class Codechef2{
public static void main(String[] args){
Scanner input = new Scanner(System.in);
int test = input.nextInt();
while (test > 0) {
int A = input.nextInt();
int B = input.nextInt();
int X = input.nextInt();
int Y = input.nextInt();
int total_power_needed = A * B;
int total_power_generated = X * Y;
if (total_power_generated >= total_power_needed){
System.out.println("Yes");
}
else {
System.out.println("No");
}
test = test - 1;
}
input.close();
}
}
```

`