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套题名称原题地址#题目分数是否ACA800✅B1000✅C2000✅D1800❌E2000❌F2300❌G2400❌H2400❌I2400❌J2400❌K2400❌L2400❌M2400❌N2400❌A. 题目题目类型   题意   分析   时间复杂度   O()O( )O()

Codeforces Round #597 (Div. 2)原题地址#题目分数是否ACAGood ol’ Numbers Coloring1000✅BRestricted RPS1200✅CConstanze’s Machine1400✅DShichikuji and Power Grid1900❌EHyakugoku and Ladders2300❌FDaniel and Spring Cleaning2300❌

Codeforces Round #738 (Div. 2)原题地址#题目分数是否ACAMocha and Math✅BMocha and Red and Blue✅CMocha and Hiking✅D1Mocha and Diana (Easy Version)✅D2Mocha and Diana (Hard Version)❌EMocha and Stars❌A. Mocha and Math

Educational Codeforces Round 77 (Rated for Div. 2)原题地址#题目分数是否ACAHeating1000✅BObtain Two Zeroes1300✅CInfinite Fence1700❌DA Game with Traps1900❌ETournament2700❌A. Heating题目类型   数学代码 public static void s

Codeforces Round #592 (Div. 2)原题地址#题目分数是否ACAPens and Pencils800✅BRooms and Staircases1000✅CThe Football Season2000✅DPaint the Tree1800❌EMinimizing Difference2000❌FChips2300❌GRunning in Pairs2400❌

Codeforces Round #737 (Div. 2)原题地址#题目分数是否ACAEzzat and Two Subsequences800✅BMoamen and k-subarrays1100✅CMoamen and XOR1700❌DEzzat and Grid2200❌EAssiut Chess2800❌A. Ezzat and Two Subsequences题目类型  思维题意   给

Codeforces Round #516 (Div. 2, by Moscow Team Olympiad)原题地址#题目分数是否ACAMake a triangle!800✅BEquations of Mathematical Magic1200✅COh Those Palindromes1300✅DLabyrinth1800✅EDwarves, Hats and Extrasensory Abilities1900❌

Educational Codeforces Round 12原题地址A. Buses Between Cities题意给出 A 市到 B 市和 B 市到 A 市公交车、出发的频率以及需要的时间。判断当坐从 A 市到 B 市的某一辆车时，在到达 B 市的图中遇到的公交车的数量。分析遇到的公交车共有两种在 m 时刻从前出发但未到站在 m 时刻之后出发枚举所有从 B 市出发的车，然后判断是否可以遇到代码 public static void solve() throws IOExcep

Educational Codeforces Round 74 (Rated for Div. 2)原题地址#题目分数是否ACAPrime Subtraction900✅BKill 'Em All1300✅CStandard Free2play1600✅DAB-string1900❌EKeyboard Purchase2200❌FThe Maximum Subtree2200❌GAdilbek and th