Why do I get an NZEC?



Dear friends i am new to c programming, i am face the problem for (Add Two Numbers Program) kindly tell me where i did the mistake?

#include <stdio.h>
void main()
int a,b,res;
printf(“Enter any 2 number”);
printf(“You are Enter %d
, %d
the result is %d=”,a,b,res);
return 0;


I get the same error in my add two numbers program.The below program is very correct but I get NZSEC error.Please help me and will solve others problem too.

if t>=1 and t<=1000:
for i in range(t):
if a>=1 and b>=1:
if a<=10000 and b<=10000:
for i in range(t):


I am getting this error. I have tried this code for many sample input. However, it is showing NZEC error when i try submitting the code.




Same here, i think server issue? Please help admin,everyone got nzec for every code


I also think there is a problem with the IDE Practice Problem,

Submitting solutions that have previously worked with AC are now returning a NZEC (I have been testing out the August Long Competition). If anyone can confirm for other problems or the same set, that would be nice. Admins, please clarify the problem!


just look around at any problem all the latest java submission at any problem get NZEC I even copy pasted my earlier successful submission for a problem and it got NZEC.


Why my karma is -1 i am not able ask question,this is serious matter please notify to codechef getting dissapointed after getting nzec


for this problem https://www.codechef.com/problems/TEST
I am getting runtime error and here is my program python

t = “”
s = “”
while True:
if num.strip()==s:
for x in l:
if x==42:
print x


use this to put in arrays

array= [int(i) for i in input().split()]


I always get a runtimr error(NZEC). I don’t know why ?
please help.

problem: https://www.codechef.com/problems/MARBLEGF

code: https://www.codechef.com/viewsolution/12382690


I’m getting NZEC for the simplest C# code as well? Any suggestions?



If you can show us your code, we might help better!

But still, for basics, try and read codechef guidelines and FAQ in case they have some sort of syntax for your language.

Check if your code has a return 0 or not.

Its actually tough to tell the reason of error w/o seeing code for me, but I hope the above helps :slight_smile:


I am using python and am getting the same errors, NZEC.

I tried using custom input on the editor and it works fine(even if I add extra spaces or something on the end of the lines), but when I uncheck it, it returns to the NZEC error. I think the error may be within the input given by the server and not on the codes.

I wish that some admins can check for errors on it. As, if this error occurs upon multiple languages, then it is a grave one.


I just also had an NZEC at XENTASK using python 3. I used python 3’s input(), selecting pypy as programming language and #! python3 as first code line. This worked before at other tasks, but seems to be the problem at XENTASK. Solved it by simply selecting py 3 as programming language, and it worked fine.
So if you use python 3, that might do the trick.


I am getting NZEC error for this code:
/* package whatever; // 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 Ideone
public static void main (String[] args) throws java.lang.Exception
Scanner sc = new Scanner(System.in);
int t,n ;
t = sc.nextInt();

	int i;
		n = sc.nextInt();
		int c = 1;
				n = n - i;

how do i solve this?
it works fine on ideone but while submitting on codechef i get this runtime error…
Please help me…


Can anyone check why am I getting NZEC in java… I have done everything possible after searching this whole Forum…


I am getting NZEC error pleaSE help me .

import java.util.Scanner;

public class Main {

public static void main(String[] args)
    int c=calculate();


public static int calculate()
    int count=0;

    Scanner inp=new Scanner(System.in);

    System.out.println("Enter No. of time input take:	 ");
    int n=inp.nextByte();

    int a[]=new int[n];

    System.out.println("All input must be divisible 	 "); //k<10pow7
    int k=inp.nextByte();
    System.out.println("Enter values:");
            for(int i=0;i<n;i++) {
                 a* = inp.nextInt();
if (a* % k == 0)
            return count;



I was solving this problem SUMTRIAN( https://www.codechef.com/problems/SUMTRIAN ) and was getting this error with Python. I was getting input using raw_input() which was coupled with split(’ ') to get a list. This is how I was taking input and converting it into a list of integers : lst = map(int, list(raw_input().split(’ ')))

Solution to this error:
Change the code to : lst = map(int, list(raw_input().strip().split(’ ')))

strip() removes any unnecessary blank spaces in the input and this removed the NZEC error.


guys, please upvote me. i am new here. nad not able to ask question


you should probably return a 0 value
by taking int main() as the function in c