Compilare: main.cpp: In function 'int main()': main.cpp:71:12: warning: unused variable 'l' [-Wunused-variable] ll l = v[0].x, r = v[n].x; ^ main.cpp:51:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ main.cpp:56:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld", &x); ^