Compilare: main.cpp: In function 'int main()': main.cpp:35:11: warning: unused variable 'x1' [-Wunused-variable] int n,x1,y1,x2,y5,x3,y3,x,y; ^~ main.cpp:35:14: warning: unused variable 'y1' [-Wunused-variable] int n,x1,y1,x2,y5,x3,y3,x,y; ^~ main.cpp:35:17: warning: unused variable 'x2' [-Wunused-variable] int n,x1,y1,x2,y5,x3,y3,x,y; ^~ main.cpp:35:20: warning: unused variable 'y5' [-Wunused-variable] int n,x1,y1,x2,y5,x3,y3,x,y; ^~ main.cpp:35:23: warning: unused variable 'x3' [-Wunused-variable] int n,x1,y1,x2,y5,x3,y3,x,y; ^~ main.cpp:35:26: warning: unused variable 'y3' [-Wunused-variable] int n,x1,y1,x2,y5,x3,y3,x,y; ^~