Compilare: main.cpp: In function 'int main()': main.cpp:91:9: warning: unused variable 'ii' [-Wunused-variable] int ii, vv; ^~ main.cpp:91:13: warning: unused variable 'vv' [-Wunused-variable] int ii, vv; ^~ main.cpp:82:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:85:40: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &V[i].x, &V[i].y); ^