In this post, we will solve the Number Line Jumps HackerRank Solution. This problem (Number Line Jumps) is a part of the HackerRank Problem Solving series.

You are choreographing a circus show with various animals. For one act, you are given two kangaroos on a number line ready to jump in the positive direction (i.e, toward positive infinity).

  • The first kangaroo starts at location x1 and moves at a rate of v1 meters per jump.
  • The second kangaroo starts at location x2 and moves at a rate of v2 meters per jump.

You have to figure out a way to get both kangaroos at the same location at the same time as part of the show. If it is possible, return YES, otherwise return NO.

Number Line Jumps Hacker Rank Solution

Problem solution in Python programming:

def kangaroo(x1, v1, x2, v2):
    # Write your code here
    if (x1 == x2):
        return "YES"
        
    if (v1 <= v2):
        return "NO"
    
    while (x1 <= x2):
        if (x1 == x2):
            return "YES"
        x1 += v1
        x2 += v2
    return "NO"

Problem solution in Java programming:

public static String kangaroo(int x1, int v1, int x2, int v2) {
    // Write your code here
        int i=0;
        int sum1 = x1 + v2;
        int sum2 = x2 + v2;
        while(i<10000){
            if(sum1 == sum2){
                return "YES";
            }
            sum2+=v2;
            sum1+=v1;
            i++;
        }
        return "NO";
    }

Problem solution in Javascript programming:

function kangaroo(x1, v1, x2, v2) {
    let isPossible = "NO"
    
    if(v1 > v2){
        let i = 1
        
        while(x1 + v1*i <= x2 + v2*i){
            if(x1 + v1*i == x2 + v2*i){
                isPossible = "YES"
                    break
            }
                i++     
        }
    }
    return isPossible
}

Categorized in:

HackerRank Solutions