Compilare: user.cpp: In function ‘void p1()’: user.cpp:67:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (contor < sir.length()) ^ user.cpp:71:52: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (verificaP1() && contor < sir.length()) ^ user.cpp: In function ‘int maxim(char, char, char)’: user.cpp:23:1: warning: control reaches end of non-void function [-Wreturn-type] } ^