Compilare: main.cpp: In member function 'OutParser& OutParser::operator<<(char*)': main.cpp:85:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < strlen(s); i++) ~~^~~~~~~~~~~ main.cpp: In function 'void pop_cbc(int, int)': main.cpp:135:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cbc_muchii != cbc[nr_cbc].size() * (cbc[nr_cbc].size() - 1) / 2) /// cbc tb sa fie graf complet ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:182:16: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] out << "DA\n2\n1 2\n"; ^~~~~~~~~~~~~~ main.cpp:184:16: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] out << "NU\n"; ^~~~~~ main.cpp:212:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(stiva.size() != nod_idx - 1) ~~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:216:14: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] out << "NU\n"; ^~~~~~ main.cpp:218:14: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings] out << "DA\n" << (int)(stiva.size() + 1) << '\n'; ^~~~~~ main.cpp: In member function 'char InParser::get_char()': main.cpp:20:55: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, sizeof(buff[0]), BUFF_SIZE, in_file); ^