Compilare: main.cpp: In function 'int prima_operatie(int, int, int)': main.cpp:57:9: warning: unused variable 'x' [-Wunused-variable] int x,y; ^ main.cpp:57:11: warning: unused variable 'y' [-Wunused-variable] int x,y; ^ main.cpp: In function 'int main()': main.cpp:123:19: warning: variable 'gunoi' set but not used [-Wunused-but-set-variable] int n,m,i,a,b,gunoi,t; ^~~~~