Compilare: user.c: In function ‘main’: user.c:85:12: warning: unused variable ‘q’ [-Wunused-variable] char c,q=0,rez; ^ user.c:85:10: warning: unused variable ‘c’ [-Wunused-variable] char c,q=0,rez; ^ user.c:97:5: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(v, 100001, fi); ^ In file included from /usr/include/stdio.h:936:0, from user.c:1: In function ‘fgets’, inlined from ‘main’ at user.c:97:5: /usr/include/bits/stdio2.h:261:9: warning: call to ‘__fgets_chk_warn’ declared with attribute warning: fgets called with bigger size than length of destination buffer return __fgets_chk_warn (__s, __bos (__s), __n, __stream); ^