Compilare: user.cpp: In function 'void citire()': user.cpp:26: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int bfs()': user.cpp:57: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void flux()': user.cpp:74: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void afisare()': user.cpp:94: warning: comparison between signed and unsigned integer expressions /tmp/ccxdaDtN.o: In function `citire()': user.cpp:(.text+0x4f6): warning: the `gets' function is dangerous and should not be used.