Borderou de evaluare (job #12360)

Compilare: user.cpp: In function 'int main()': user.cpp:11:12: warning: statement has no effect [-Wunused-value] user.cpp:23:23: warning: left operand of comma operator has no effect [-Wunused-value] user.cpp:9:9: warning: unused variable 'n' [-Wunused-variable] user.cpp:11:5: warning: 'i' may be used uninitialized in this function [-Wuninitialized] user.cpp:29:21: warning: 'j' may be used uninitialized in this function [-Wuninitialized] user.cpp:16:17: warning: 'k' may be used uninitialized in this function [-Wuninitialized]