If you were to rate some IOI problems by CodeForces difficulty rating scheme, what would be the average difficulty level of question ?
Or, what is the range of difficulty of IOI problems in CodeForces' terms
Or, If some IOI problems were to come in CodeForces, what would be their average difficulty level ?
Or, Questions of what difficulty level I must solve on CodeForces in order to consider myself a good candidate for IOI ?
I believe it would be div1D or higher, and the easiest being div1C. However, the style is different and there are subtasks in IOI.