Compilare: main.cpp: In function 'int main()': main.cpp:38:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses] cin >> vc + 1; ~~~^~~ main.cpp:36:17: warning: unused variable 'l' [-Wunused-variable] int n , i , l , ll , cnt = 0 , sup = 0 , xmax = 0 , xmin = 0 , ymax = 0 , ymin = 0 , x = 0 , y = 0 , dir1 = 0 , dir2 = 0; ^ main.cpp:36:21: warning: unused variable 'll' [-Wunused-variable] int n , i , l , ll , cnt = 0 , sup = 0 , xmax = 0 , xmin = 0 , ymax = 0 , ymin = 0 , x = 0 , y = 0 , dir1 = 0 , dir2 = 0; ^~ main.cpp:36:26: warning: unused variable 'cnt' [-Wunused-variable] int n , i , l , ll , cnt = 0 , sup = 0 , xmax = 0 , xmin = 0 , ymax = 0 , ymin = 0 , x = 0 , y = 0 , dir1 = 0 , dir2 = 0; ^~~ main.cpp:36:117: warning: unused variable 'dir2' [-Wunused-variable] int n , i , l , ll , cnt = 0 , sup = 0 , xmax = 0 , xmin = 0 , ymax = 0 , ymin = 0 , x = 0 , y = 0 , dir1 = 0 , dir2 = 0; ^~~~