codif.cpp: In function 'bool checker(int, const std::string&)': codif.cpp:23: warning: comparison between signed and unsigned integer expressions codif.cpp: In function 'void bach(int)': codif.cpp:32: warning: comparison between signed and unsigned integer expressions codif.cpp: In function 'bool cmp(const std::string&, const std::string&)': codif.cpp:51: warning: comparison between signed and unsigned integer expressions codif.cpp: In function 'int main()': codif.cpp:67: warning: comparison between signed and unsigned integer expressions