explicitly import string.h for strcmp()

- implicitly declaring library function is bad manner :)

explicitly import string.h for strcmp()
- implicitly declaring library function is bad manner :)
bf5f9864 · anthraxx · 320c0928 · bf5f9864
Commit bf5f9864 authored Jun 10, 2014 by anthraxx
--- a/challenge/challenge.c
+++ b/challenge/challenge.c
+#include <string.h>
 #include <stdio.h>
 #include <stdlib.h>