Borderou de evaluare (job #204354)

Compilare: user.cpp: In function ‘int main()’: user.cpp:7:27: warning: unused variable ‘c’ [-Wunused-variable] user.cpp:7:31: warning: unused variable ‘i’ [-Wunused-variable] user.cpp:7:33: warning: unused variable ‘n’ [-Wunused-variable] user.cpp:7:35: warning: variable ‘a1’ set but not used [-Wunused-but-set-variable] user.cpp:7:38: warning: variable ‘b1’ set but not used [-Wunused-but-set-variable] user.cpp:25:5: warning: ‘r’ is used uninitialized in this function [-Wuninitialized]