Keplers Law KEPLERSLAW Solution Codechef

Keplers Law KEPLERSLAW Solution Codechef

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Keplers Law KEPLERSLAW Solution

Kepler’s Law states that the planets move around the sun in elliptical orbits with the sun at one focus. Kepler’s 3rd law is The Law of Periods, according to which:

  • The square of the time period of the planet is directly proportional to the cube of the semimajor axis of its orbit.

You are given the Time periods (T1,T2) and Semimajor Axes (R1,R2) of two planets orbiting the same star.

Please determine if the Law of Periods is satisfied or not, i.e, if the constant of proportionality of both planets is the same.

Print "Yes" (without quotes) if the law is satisfied, else print "No".

Input Format

  • The first line of input contains a single integer T, denoting the number of test cases. The description of T test cases follows.
  • Each test case consists a single line of input, containing four space-separated integers T1,T2,R1,R2.

Output Format

  • For each test case, output a single line containing one string — "Yes" or "No" (without quotes); the answer to the problem.
  • You may print each character of the answer in uppercase or lowercase (for example, the strings “yEs”, “yes”, “Yes” and “YES” will all be treated as identical).

Constraints

  • 1≤T≤104
  • 1≤T1,T2≤10
  • 1≤R1,R2≤10

Subtasks

Subtask 1(100 points): Original constraints

Sample Input 1

3
1 1 1 1
1 2 3 4
1 8 2 8

Sample Output 1

Yes
No
Yes

Explanation

  • Test Case 1: 12/13=12/13
  • Test Case 2: 12/33≠22/43
  • Test Case 3: 12/23=82/83

SOLUTION

Program: Keplers Law KEPLERSLAW Solution in C++

#include <bits/stdc++.h>
using namespace std;
int main() {
	int T;
	cin>>T;
	while(T--){
int t1,t2,r1,r2;
cin>>t1>>t2>>r1>>r2;
if( pow(t1, 2)/ pow(r1, 3) ==  pow(t2, 2)/ pow(r2, 3) ){
	cout<<"Yes"<<endl;
} else{
	cout<<"No"<<endl;
}
	}
}

Program: Keplers Law KEPLERSLAW Solution in Java

import java.util.*;
import java.lang.*;
import java.io.*;
class Codechef
{
	public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int t=sc.nextInt();
        for(int i=0;i<t;i++)
        {
            int t1=sc.nextInt();
            int t2=sc.nextInt();
            int r1=sc.nextInt();
            int r2=sc.nextInt();
            if(((Math.pow(t1,2))/(Math.pow(r1,3)))==((Math.pow(t2,2))/(Math.pow(r2,3))))
                System.out.println("YES");
            else
                System.out.println("NO");
        }
    }
}

Program: Keplers Law KEPLERSLAW Solution in Python

t=int(input())
for i in range(t):
    t1,t2,r1,r2=map(int,input().split())
    if t1**2/r1**3==t2**2/r2**3:
        print("YES")
    else:
        print("NO")

January Long Challenge 2022 Solution

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