Compilare: user.cpp: In function 'int main()': user.cpp:153: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'punct face6(int, int, int)': user.cpp:90: warning: control reaches end of non-void function user.cpp: In function 'punct face5(int, int, int)': user.cpp:79: warning: control reaches end of non-void function user.cpp: In function 'punct face4(int, int, int)': user.cpp:68: warning: control reaches end of non-void function user.cpp: In function 'punct face3(int, int, int)': user.cpp:57: warning: control reaches end of non-void function user.cpp: In function 'punct face2(int, int, int)': user.cpp:46: warning: control reaches end of non-void function user.cpp: In function 'punct face1(int, int, int)': user.cpp:35: warning: control reaches end of non-void function