Compilare: user.cpp: In function ‘int solve2(int)’: user.cpp:30:9: warning: variable ‘i’ set but not used [-Wunused-but-set-variable] int i , j , st , dr , mid , nr , k , ok , ka , rez , sol; ^ user.cpp: In function ‘int main()’: user.cpp:65:19: warning: unused variable ‘x’ [-Wunused-variable] int n , caz , x , y , m , t; ^ user.cpp:65:23: warning: unused variable ‘y’ [-Wunused-variable] int n , caz , x , y , m , t; ^ user.cpp: In function ‘int solve2(int)’: user.cpp:30:52: warning: ‘rez’ may be used uninitialized in this function [-Wmaybe-uninitialized] int i , j , st , dr , mid , nr , k , ok , ka , rez , sol; ^