Compilare: user.cpp: In function 'bool verif_fasie(int, int, int)': user.cpp:157: warning: comparison between signed and unsigned integer expressions user.cpp:160: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'bool verif_linie(int, int, int)': user.cpp:170: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'bool pct_deasupra(int, int, int)': user.cpp:147: warning: control reaches end of non-void function