Which is more difficult, the physical Olympics or the mathematical Olympics?
I still have to consider my interests first ... but to be honest, I participated in chemistry and mathematics competitions in high school ... I think mathematics is the most difficult in the Olympic competition. Now the exam in the math contest has been changed. You should know that there are no multiple-choice questions, especially the four answers in the second volume (I remember I completed a number theory and half inequality and half combinatorial mathematics in 2009) ... both knowledge and thinking requirements are extremely high. ...