when i use check50....it is showing error in helper.c but i didn't find any error in source codes of programs or helper.c

i wrote programs for generate.c and find.c but they didnt gave any errors i used different searching techniques but the error is same

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  • Did you change another file, like find.c or helpers.h? If you did, the changed files are not being uploaded, so the compile fails.
    – Cliff B
    Jul 20, 2016 at 16:41

1 Answer 1


There is an error message relating to line 23, column 16 in helpers.c, you should fix that.

From similar error messages I got, I'd guess you used some function like printf without including the right header file (for printf it would be <stdio.h>).

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