https://codeforces.me/problemset/problem/1380/C https://codeforces.me/contest/2091/problem/B both problems are same one is 800 other one is 1400
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It's probably because the problem B was solved by tons of people
I think some people are afraid of Div2 C. However, if they got the same problem as Div3 B, it would be easy for them to solve. psychology :)