Educational Codeforces Round177(Div. 2) Reivew(A~D)

https://codeforces.com/contest/2086/problems I solved A, C in Contest, and Upsolved B, D with editorial.I spent too much time on B, stupidly. A - Cloudberry Jam (math, greedy) It could be solved instantly with intuition, but I didn't.Because I was n...