Compilare: user.cpp: In function ‘void ReadInput()’: user.cpp:33:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:35:42: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf", &pts[i].x, &pts[i].y); ^ user.cpp: In function ‘int main()’: user.cpp:124:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] double x, y; scanf("%lf%lf", &x, &y); ^