cf rating只有1649的蒟蒻开始刷cf辣= =
题目大多数来源于2013和2014的集训队作业(可能还有少量本蒟蒻乱做的题)
// 点进题号有题解
现在做了几题:
21
Codeforces 235C: Cyclical Quest 后缀自动机
Codeforces 235D: Graph Game 期望
Codeforces 235E: Number Challenge 莫比乌斯反演
Codeforces 238D: Tape Programming 链表,模拟
Codeforces 238E: Meeting Her 迭代,DP,最短路
Codeforces 240E: Road Repairs 最小树形图,朱刘算法
Codeforces 241B: Friends Trie,贪心
Codeforces 241D: Numbers DP
Codeforces 241E: Flights 差分约束系统
Codeforces 241F: Race 模拟
Codeforces 248E: Piglet's Birthday 期望,DP
Codeforces 249E: Endless Matrix 数学
Codeforces 258D: Little Elephant and Broken Sorting 期望
Codeforces 261D: Maxim and Increasing Subsequence DP
Codeforces 306C: White, Black and White Again 组合数学
Codeforces 314E: Sereja and Squares DP
Codeforces 319D: Have You Ever Heard About the Word? 哈希
Codeforces 323C: Two permutations 主席树
Codeforces 332D: Theft of Blueprints 期望,枚举
Codeforces 348E: Pilgrims 树的重心