Compilare: user.cpp: In function ‘int main()’: user.cpp:85:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (g * dp[nod][l] > (l + 1) * orn) { ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~ user.cpp:56:10: warning: variable ‘mx’ set but not used [-Wunused-but-set-variable] double mx; ^~ user.cpp: In function ‘char advance()’: user.cpp:13:32: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer, 1, SIZE, fin); ^