Borderou de evaluare (job #5006)

Compilare: user.cpp: In function ‘int main()’: user.cpp:28:29: warning: left operand of comma operator has no effect [-Wunused-value] user.cpp:31:30: warning: left operand of comma operator has no effect [-Wunused-value] user.cpp:8:12: warning: unused variable ‘l’ [-Wunused-variable] user.cpp:42:28: warning: ‘s2’ may be used uninitialized in this function [-Wuninitialized] user.cpp:42:19: warning: ‘s1’ may be used uninitialized in this function [-Wuninitialized]