AtCoder Beginner Contest 191

https://atcoder.jp/contests/abc191 0:00​ Start 0:24 start solving Problem A 2:30​ start solving Problem B 3:31​ start solving Problem C 7:29​ start solving Problem D, realized it's floating point input halfway, but decided to rush with a quick solution anyway 13:54​ solving problem D with long long. stumbled a lot with the re-implementation. 27:43 start solving Problem E 35:03​ start solving Problem F, played with the input, observe. 40:45​ Problem F: try to solve it with DP, but didn't get much progress, start implementing a bruteforce solution first 51:35 Problem F: the bruteforce solution passed... emm...