Average Speed

                                                                          Average Speed

A single line L with a set of space separated values indicating distance travelled and time taken is passed as the input. The program must calculate the average speed S (with precision upto 2 decimal places) and print S as the output.

Note: The distance and time taken will follow the format DISTANCE@TIMETAKEN. DISTANCE will be in kilometers and TIMETAKEN will be in hours.

Input Format:
The first line contains L.

Output Format:
The first line contains the average speed S.

Boundary Conditions:
Length of L will be from 3 to 100.

Example Input/Output 1:
Input:
60@2 120@3

Output:
36.00 kmph

Explanation:
Total distance = 60+120 = 180 km.
Total time taken = 2+3 = 5 hours.
Hence average speed = 180/5 = 36.00 kmph

Java Program:

import java.util.*;

public class Hello {

    public static void main(String[] args) {

//Your Code Here

Scanner sc=new Scanner(System.in);

String st;

int d=0,s=0;

st=sc.nextLine();

String[] str=st.split(" ");

for(String a:str){

int j=a.indexOf('@');

   d=d+Integer.parseInt(a.substring(0,j)); 

   s=s+Integer.parseInt(a.substring(j+1));

}

System.out.printf("%.2f kmph",((float)d/(float)s));

}

}