Borderou de evaluare (job #42908)

Compilare: user.cpp: In function ‘int main()’: user.cpp:12:16: warning: statement has no effect [-Wunused-value] user.cpp:13:9: warning: statement has no effect [-Wunused-value] user.cpp:9:19: warning: unused variable ‘cn’ [-Wunused-variable] user.cpp:9:22: warning: unused variable ‘nr’ [-Wunused-variable] user.cpp:9:28: warning: unused variable ‘pw’ [-Wunused-variable] user.cpp:14:5: warning: ‘n2’ may be used uninitialized in this function [-Wuninitialized]