[BZOJ1492][NOI2007] 货币兑换 Cash

[2016-2017 ACM-ICPC CHINA-Final][GYM 101194 E] Bet

[Codeforces Round #248][Codeforces 434D] Nanami's Power Plant

[TCO2016 Round 2B DIV1 Middle] FoxAndGemstone

[Testing Round #13][Codeforces 753C] Interactive Bulls and Cows (Hard)

[TCO2016 Round 2B DIV1 Easy] TriangleTriples

斜率优化学习笔记

[Educational Codeforces Round 6][Codeforces 620C]Pearls in a Row

[Educational Codeforces Round 6][Codeforces 620E]New Year Tree

[Codeforces Round #447][Codeforces 894C]Marco and GCD Sequence