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Name
Tags
Solutions
Index
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Type
Points
Tutorial
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462 Tree or not Tree data structures divide and conquer implementation trees Statement E Codeforces Beta Round 88 {117} PROGRAMMING Codeforces Beta Round #88 (Editorial) 2800
102 Gnomes of Might and Magic data structures graphs implementation shortest paths Statement F Codeforces Round 115 {175} PROGRAMMING Codeforces Round #115 — editorial A-E 3000
367 Battlefield geometry graphs implementation shortest paths Statement A Codeforces Round 117 (Div. 2) {182} PROGRAMMING Codeforces Round #117 (Div. 2) Разбор Задач 2300
670 Rats brute force dfs and similar graphs implementation shortest paths Statement D Codeforces Round 155 (Div. 2) {254} PROGRAMMING Codeforces Round #155 (Div. 2) — tutorial 2600
170904 Queue at the School constructive algorithms graph matchings implementation shortest paths Statement B Codeforces Round 163 (Div. 2) {266} PROGRAMMING Codeforces Round #163 (Div. 2) Tutorial 900
584 Game with Points dp graphs implementation shortest paths Statement D Testing Round 9 {386} PROGRAMMING 2300
2610 Fox and Minimal path bitmasks constructive algorithms graphs implementation math Statement B Codeforces Round 228 (Div. 1) {388} PROGRAMMING Codeforces Round #228 — Editorial 2000
64916 Two Buttons dfs and similar graphs greedy implementation math shortest paths Statement B Codeforces Round 295 (Div. 2) {520} PROGRAMMING Codeforces Round #295 Editorial (now with bonuses!) 1400
1998 Theseus and labyrinth graphs implementation shortest paths Statement D Codeforces Round 354 (Div. 2) {676} PROGRAMMING 2000
1359 Tree Folding dfs and similar dp greedy implementation trees Statement E Codeforces Round 397 by Kaspersky Lab and Barcelona Bootcamp (Div. 1 + Div. 2 combined) {765} PROGRAMMING Codeforces Round #397 Editorial 2200
3055 Innokenty and a Football League 2-sat graphs greedy implementation shortest paths strings Statement D Технокубок 2017 - Финал (только для онсайт-финалистов) {780} PROGRAMMING Technocup 2017 Finals and Codeforces Round #403 Editorial 2000
4891 Igor and his way to work dfs and similar graphs implementation shortest paths Statement B Tinkoff Challenge - Elimination Round {793} PROGRAMMING 51685 1600
537 Red-Black Cobweb data structures divide and conquer implementation trees Statement D Codeforces Round 426 (Div. 1) {833} PROGRAMMING Codeforces Round #426 Editorial 2800
4469 Kilani and the Game dfs and similar graphs implementation shortest paths Statement D Codeforces Round 533 (Div. 2) {1105} PROGRAMMING Tutorial 1900
5565 Subsequences (easy version) dp graphs implementation shortest paths Statement E Codeforces Round 570 (Div. 3) {1183} PROGRAMMING Tutorial 2000
1471 Super Jaber dfs and similar graphs implementation shortest paths Statement F Codeforces Round 619 (Div. 2) {1301} PROGRAMMING 2500.0 Codeforces Round #619 (Div. 2) Editorial 2700
4923 Orac and Game of Life dfs and similar graphs implementation shortest paths Statement C Codeforces Round 641 (Div. 1) {1349} PROGRAMMING 1250.0 Codeforces Round #641 Editorial 2000
28366 Polygon dp graphs implementation shortest paths Statement E Codeforces Round 644 (Div. 3) {1360} PROGRAMMING Codeforces Round #644 (Div. 3) Editorial 1300
21388 Solve The Maze constructive algorithms dfs and similar dsu graphs greedy implementation shortest paths Statement D Codeforces Round 648 (Div. 2) {1365} PROGRAMMING 1500.0 Editorial — Codeforces Round #648 1700
4397 Hexagons brute force implementation math shortest paths ternary search Statement D Codeforces Round 676 (Div. 2) {1421} PROGRAMMING 2000.0 Codeforces Round #676 (Div. 2) Editorial
3248 Returning Home data structures graphs implementation shortest paths sortings Statement D Codeforces Round 675 (Div. 2) {1422} PROGRAMMING 1500.0 Codeforces Round #675 (Div. 2) Editorial
4988 Minimum Path dp graphs implementation shortest paths Statement E Educational Codeforces Round 102 (Rated for Div. 2) {1473} PROGRAMMING Educational Codeforces Round 102 Editorial
1930 Cakewalk constructive algorithms greedy implementation shortest paths Statement E April Fools Day Contest 2021 {1505} PROGRAMMING tutorial
16631 Air Conditioners dfs and similar dp implementation shortest paths sortings two pointers Statement E Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
444 Four Vertices constructive algorithms data structures graphs greedy implementation shortest paths Statement G Codeforces Global Round 16 {1566} PROGRAMMING 3000.0 Codeforces Global Round 16 Editorial
4904 The Strongest Build data structures dfs and similar graphs greedy hashing implementation shortest paths Statement D Educational Codeforces Round 114 (Rated for Div. 2) {1574} PROGRAMMING 95188
5409 Array Stabilization (AND version) binary search brute force graphs greedy implementation math number theory shortest paths Statement F Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
1070 Christmas Chocolates dfs and similar dp games graphs implementation math number theory shortest paths trees Statement E Codeforces Round 761 (Div. 2) {1617} PROGRAMMING 3000.0 Editorial for Codeforces Round #761 (Div. 2)
7333 BA-String bitmasks brute force dp greedy implementation math shortest paths Statement C Educational Codeforces Round 119 (Rated for Div. 2) {1620} PROGRAMMING 98061
2868 Not Escaping data structures dp implementation shortest paths sortings two pointers Statement E Codeforces Round 766 (Div. 2) {1627} PROGRAMMING 2000.0 Codeforces Round #766 (Div. 2) Editorial
691 Not Splitting geometry graphs implementation shortest paths Statement F Codeforces Round 766 (Div. 2) {1627} PROGRAMMING 2750.0 Codeforces Round #766 (Div. 2) Editorial
1272 Antennas data structures dfs and similar graphs graphs implementation implementation shortest paths shortest paths Statement F SWERC 2021-2022 - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1662} PROGRAMMING 102042
15070 Vertical Paths graphs implementation trees Statement D Codeforces Round 787 (Div. 3) {1675} PROGRAMMING 102550
307 Infinite Chess implementation shortest paths Statement I 2022-2023 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Preferably Teams) {1765} PROGRAMMING 109642 2800
3684 Sum Graph constructive algorithms graphs implementation interactive math shortest paths trees Statement B Codeforces Round 865 (Div. 1) {1815} PROGRAMMING 1250.0 Editorial of Codeforces Round #865 2000
24058 Come Together geometry implementation math Statement B Educational Codeforces Round 151 (Rated for Div. 2) {1845} PROGRAMMING 117791
4018 Time Travel binary search graphs implementation shortest paths Statement B Codeforces Round 905 (Div. 1) {1887} PROGRAMMING 750.0 Codeforces Round #905 (Div. 1, Div. 2, Div. 3) Editorial
10340 Bicycles dp graphs greedy implementation shortest paths sortings Statement G Codeforces Round 918 (Div. 4) {1915} PROGRAMMING 123952
1005 Long Way to be Non-decreasing binary search dfs and similar graphs implementation shortest paths two pointers Statement D Codeforces Round 942 (Div. 1) {1967} PROGRAMMING 1750.0 Tutorial 2800
1966 Digital Village (Easy Version) brute force data structures dp dsu graphs greedy implementation math shortest paths trees Statement E1 Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 1750.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
3834 Alice's Adventures in Cards constructive algorithms data structures dfs and similar dp graphs greedy implementation shortest paths Statement D Codeforces Round 986 (Div. 2) {2028} PROGRAMMING 1750.0 Codeforces Round 986 (Div. 2) Editorial
935 Spruce Dispute constructive algorithms dfs and similar graphs implementation shortest paths trees Statement E Codeforces Round 1022 (Div. 2) {2108} PROGRAMMING 2750.0 Codeforces Round 1022 Editorial