CODEWITHSUNDEEP
javaruntime-error
Manojit Paul
Manojit Paul

Reputation: 51

CODECHEF: Runtime Error (NZEC)

I attempted a problem from codechef and made my code on java which runs perfectly on eclipse on my laptop.But everytime i try to submit the code it gives me this NZEC error. Can anyone tell why am i getting the non zero exit code error (NZEC) while i am executing this code. Problem to this code: https://www.codechef.com/problems/STRPALIN

    import java.util.*;
import java.io.*;
public class Palindrome {

    public boolean check() throws IOException{
        String A;
        String B;
        BufferedReader inp = new BufferedReader (new InputStreamReader(System.in));
        A=inp.readLine();
        B=inp.readLine();
        for(int i=0;i<A.length();i++)
        {
            for(int j=0;j<B.length();j++)
            {
                if(A.charAt(i)==B.charAt(j))
                    return true;
            }
        }
        return false;
    }


    public static void main(String[] args)throws NumberFormatException, IOException {
        Palindrome M = new Palindrome();
        boolean[] array = new boolean[10];
        BufferedReader in = new BufferedReader (new InputStreamReader(System.in));
        int T = Integer.parseInt(in.readLine());
        for(int i=0;i<T;i++)
        {
            array[i]=M.check();
        }
        for(int j=0;j<T;j++){
            if(array[j])
                System.out.println("Yes");
            else
                System.out.println("No");

        }
    }
}

Upvotes: 1

Views: 441

Answers (2)

Anupam Haldkar
Anupam Haldkar

Reputation: 1085

Regarding the NZEC error:

import java.util.*;
import java.io.*;
 class Codechef {

    public boolean check() throws IOException{
        String A;
        String B;
        BufferedReader inp = new BufferedReader (new InputStreamReader(System.in));
        A=inp.readLine();
        B=inp.readLine();
        for(int i=0;i<A.length();i++)
        {
            for(int j=0;j<B.length();j++)
            {
                if(A.charAt(i)==B.charAt(j))
                    return true;
            }
        }
        return false;
    }


    public static void main(String[] args)throws NumberFormatException, IOException {
        try {
            Codechef M = new Codechef();
        boolean[] array = new boolean[10];
        BufferedReader in = new BufferedReader (new InputStreamReader(System.in));
        int T = Integer.parseInt(in.readLine());
        for(int i=0;i<T;i++)
        {
            array[i]=M.check();
        }
        for(int j=0;j<T;j++){
            if(array[j])
                System.out.println("Yes");
            else
                System.out.println("No");

        }
        } catch(Exception e) {
        } finally {
        }
    }
}

Upvotes: 0

Jayant Isswani
Jayant Isswani

Reputation: 11

The problem with your code is that while taking input from user for String A and B, the readline() method returns null, and when you try to access String A or B, a NullPointerException is thrown. Hence the non-zero exit code .

Now, the readline() method returned null value because you created a BufferedReader object twice, which led to leakage of memory.

Refer to this link: readline() returns null in Java

Upvotes: 0

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