Compilare: user.c: In function ‘main’: user.c:50:8: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(s, MAXL + 2, in); ^ user.c:55:33: warning: ‘len’ may be used uninitialized in this function [-Wmaybe-uninitialized] long long x, cmut, rez = INF, len; ^ user.c:55:16: warning: ‘cmut’ may be used uninitialized in this function [-Wmaybe-uninitialized] long long x, cmut, rez = INF, len; ^