If two or three problems in div1 round have near the same difficulty and the next problem is much more difficult than that 2 or 3, than results are unfair: participants that solved these problems are sorted according to luck, not to their real skill. Examples:
- Today round;
- In round Codeforces Round #469 (Div. 1) participants with numbers 119-299 solved 3 problems;
- The same situation is with rounds Codeforces Round #472 (рейтинговый, Div. 1, по задачам VK Cup 2018 Раунд 2), Codeforces Round #468 (Div. 1, основан на Финальном раунде Технокубка 2018), Codeforces Round #462 (Div. 1) and some other contests.
Also hacking is near impossible in div1 rounds because participants are rather clever to make mistakes.
So I think that div1 rounds should be extended with div2 problems or div1 participants should compete with div2 contestants,
What is your opinion on this ideas?