# NZEC(Non zero exit code) Run time error

**URL:** <https://discuss.codechef.com/t/nzec-non-zero-exit-code-run-time-error/30687>\
**Category:** faq\
**Tags:** help\
**Created:** [July 11, 2019, 5:16am UTC](https://discuss.codechef.com/t/nzec-non-zero-exit-code-run-time-error/30687 "2019-07-11T05:16:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![indranil140995](https://discuss.codechef.com/user_avatar/discuss.codechef.com/indranil140995/32/4430_2.png) [@indranil140995](https://discuss.codechef.com/u/indranil140995)\
**Post date:** [July 11, 2019, 5:16am UTC](https://discuss.codechef.com/t/nzec-non-zero-exit-code-run-time-error/30687/1 "2019-07-11T05:16:12Z")

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I am new to codechef. Everytime i am running the code in portral geting NZEC error, while in my complier(C/C++/pythn 3.6) it is executing well.

any suggestions

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<div class="post-metadata">

**Author:** ![gjaiswal108](https://discuss.codechef.com/user_avatar/discuss.codechef.com/gjaiswal108/32/7992_2.png) [@gjaiswal108](https://discuss.codechef.com/u/gjaiswal108)\
**Post date:** [July 11, 2019, 5:19am UTC](https://discuss.codechef.com/t/nzec-non-zero-exit-code-run-time-error/30687/2 "2019-07-11T05:19:48Z")

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>
> I decided to write a blog about this,because I’m daily replying to many users same thing about custom input process on codechef. I have seen each time a new user submits his first ever code on codechef(This is happening a lot as many new users are joining codechef nowadays), he first tries to “RUN” instead of “SUBMIT” the code, but doesn’t give the custom input, because he thinks ,if he will click run, it will check for the sample input( as this happens on some other online judge like hackerran…