目录
Educational Codeforces Round 45 (Rated for Div. 2)
Codeforces Round #481 (Div. 3)
Codeforces Round #482 (Div. 2)
Codeforces Round #662 (Div. 2)
Educational Codeforces Round 45 (Rated for Div. 2)
题目：A. Commentary Boxes 题解 思维题
题目：B Micro-World 题解 思维题
题目：C Bracket Sequences Concatenation Problem 题解 思维题
题目：D Graph And Its Complement 题解 思维题
题目：E Post Lamps 题解 思维题
题目：F Flow Control 题解
题目：G GCD Counting 题解
Codeforces Round #481 (Div. 3)
题目：A - Remove Duplicates 题解
题目：B - File Name 题解
题目：C - Letters 题解
题目：D - Almost Arithmetic Progression 题解
题目：E - Bus Video System 题解
题目：F - Mentors 题解
题目：G - Petya's Exams 题解
Codeforces Round #482 (Div. 2)
题目：A - Pizza, Pizza, Pizza!!! 题解
题目：B - Treasure Hunt 题解
题目：C - Kuro and Walking Route 题解
题目：D - Kuro and GCD and XOR and SUM 题解
题目：E - Kuro and Topological Parity 题解
Codeforces Round #662 (Div. 2)
题目：A Rainbow Dash, Fluttershy and Chess Coloring 题解
题目：B Applejack and Storages 题解
题目：C Pinkie Pie Eats Patty-cakes 题解
题目：D Rarity and New Dress 题解
题目：E1 Twilight and Ancient Scroll (easier version) 题解
题目：E2 Twilight and Ancient Scroll (harder version) 题解
