SIXFRIENDS

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1

Hi,
i’m new in codechef, i’m doing SIXFRIEND.
I submitted the code, in eclipse runs fine with same input as codechef, but in codechef it is not working, this error appear:

Exception in thread “main” java.util.NoSuchElementException: No line found
at java.util.Scanner.nextLine(Scanner.java:1540)
at Codechef.main(Main.java:18)

Thank you, i’ve tried modifing the code multiple times but stil does not work.

2

Hey @michelangelo_f :wave: ,
Thanks for asking your doubt. It’s hard to say without checking the code can you please send your code.

3

i didn’t post the code cause the contest was an ongoing contest.
Here’s the code:

/* 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);
		Scanner sc1 = new Scanner(System.in);
		int testcases = sc.nextInt();
		int i = 0;
		String[] arr = new String[2];
		for (int count = 0; count < testcases; count++) {
			String input = sc1.nextLine();
			String[] temparr = input.split(" ");
			for (String a : temparr) {
				arr[i] = a;
				i++;
			}
			i = 0;
			int droom = Integer.parseInt(arr[0]) * 3;
			int troom = Integer.parseInt(arr[1]) * 2;
			if (troom > droom) {
				System.out.println(droom);
			} else {
				System.out.println(troom);
			}
		}
	}
}
4

Hi, any news?

5

Hey @michelangelo_f :wave: ,
Your logic is correct and the error is only on input phase.Try taking values using nextInt() every n times(for example :given an array of n size then run a loop for n times and take input this way).

for(loop till n times):
val = scanner_input_class.nextInt()

this is a pseudo code how you can take input for an array in java.
Here is your code I have modified with this changes.

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 testcases = sc.nextInt();
		int i = 0;
		String[] arr = new String[2];
		for (int count = 0; count < testcases; count++) {
			int val1 = sc.nextInt(); // have taken 1st value in val1
			int val2 = sc.nextInt(); // have taken 2nd value in val2
			int droom = val1 * 3;
			int troom = val2 * 2;
			if (troom > droom) {
				System.out.println(droom);
			} else {
				System.out.println(troom);
			}
		}
	}
}