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1 2 >Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 1785 | Scheme | dfs and similar graphs trees | Statement | E | Codeforces Beta Round 22 (Div. 2 Only) {22} | PROGRAMMING | Codeforces Beta Round #22 Tutorial | 2400 | |
| 211 | Baldman and the military | dfs and similar graphs trees | Statement | E | Codeforces Beta Round 41 {42} | PROGRAMMING | Solution of task е, Codeforces beta round #41 | 2700 | |
| 707 | Caterpillar | dfs and similar dp graphs trees | Statement | F | Codeforces Beta Round 48 {51} | PROGRAMMING | 2600 | ||
| 6849 | Eternal Victory | dfs and similar graphs greedy shortest paths trees | Statement | D | Codeforces Beta Round 57 (Div. 2) {61} | PROGRAMMING | Round 57-A | 1900 | |
| 1058 | Beavermuncher-0xFF | dfs and similar dp ds greedy trees | Statement | C | Codeforces Beta Round 69 (Div. 1 Only) {77} | PROGRAMMING | Codeforces Beta Round #69 tutorial | 2300 | |
| 365 | Pairs | dfs and similar dp ds graphs implementation trees | Statement | E | Yandex.Algorithm Open 2011: Qualification 1 {81} | PROGRAMMING | 2600 | ||
| 929 | Beautiful Road | dfs and similar dp ds graphs implementation sortings trees | Statement | D | Codeforces Beta Round 73 (Div. 1 Only) {87} | PROGRAMMING | 2300 | ||
| 394 | Leaders | dfs and similar ds graphs trees | Statement | E | Yandex.Algorithm 2011: Finals {97} | PROGRAMMING | 2800 | ||
| 37373 | Party | dfs and similar graphs trees | Statement | A | Codeforces Beta Round 87 (Div. 1 Only) {115} | PROGRAMMING | Tutorial | 1300 | |
| 751 | Maze | dfs and similar dp probabilities trees | Statement | E | Codeforces Beta Round 92 (Div. 1 Only) {123} | PROGRAMMING | 2600 | ||
| 16088 | Distance in Tree | dfs and similar dp trees | Statement | D | VK Cup 2012 Round 1 {161} | PROGRAMMING | VK Cup 2012 Round 1: editorial | 1800 | |
| 1902 | IT Restaurants | dfs and similar dp trees | Statement | E | VK Cup 2012 Finals (unofficial online-version) {212} | PROGRAMMING | 1800 | ||
| 10175 | Choosing Capital for Treeland | dfs and similar dp graphs trees | Statement | D | Codeforces Round 135 (Div. 2) {219} | PROGRAMMING | User editorial for Codeforces Round #135 (Div. 2) | 1900 | |
| 581 | T-decomposition | dfs and similar graphs greedy trees | Statement | D | Codeforces Round 147 (Div. 2) {237} | PROGRAMMING | 2200 | ||
| 1280 | World Eater Brothers | dfs and similar dp greedy trees | Statement | C | Codeforces Round 148 (Div. 1) {238} | PROGRAMMING | Editorial for Codeforces Round #148 | 2200 | |
| 180 | Tree and Table | dfs and similar dp implementation trees | Statement | E | Codeforces Round 153 (Div. 1) {251} | PROGRAMMING | Editorial of Codeforces Round #153 | 3000 | |
| 5142 | Zero Tree | dfs and similar dp greedy trees | Statement | B | Codeforces Round 168 (Div. 1) {274} | PROGRAMMING | Codeforces Round #168 Editorial | 2000 | |
| 6363 | Book of Evil | dfs and similar divide and conquer dp trees | Statement | D | Codeforces Round 196 (Div. 2) {337} | PROGRAMMING | 2100 | ||
| 2134 | Apple Tree | dfs and similar number theory trees | Statement | B | Codeforces Round 202 (Div. 1) {348} | PROGRAMMING | Editorial for Codeforces Round #202 | 2400 | |
| 458 | Pilgrims | dfs and similar dp trees | Statement | E | Codeforces Round 202 (Div. 1) {348} | PROGRAMMING | 2800 | ||
| 10716 | Valera and Elections | dfs and similar graphs trees | Statement | C | Codeforces Round 216 (Div. 2) {369} | PROGRAMMING | 1700 | ||
| 695 | Ksenia and Pawns | dfs and similar graphs implementation trees | Statement | D | Codeforces Round 224 (Div. 2) {382} | PROGRAMMING | Codeforces Round #224 (Div. 2) Editorial | 2300 | |
| 1199 | Hill Climbing | dfs and similar geometry trees | Statement | D | Codeforces Round 238 (Div. 1) {406} | PROGRAMMING | 2200 | ||
| 10935 | Xor-tree | dfs and similar trees | Statement | A | Codeforces Round 245 (Div. 1) {429} | PROGRAMMING | Codeforces Round #245 — Editorial | 1500 | |
| 6160 | A Lot of Games | dfs and similar dp games implementation strings trees | Statement | B | Codeforces Round 260 (Div. 1) {455} | PROGRAMMING | Codeforces Round #260 — Editorial | 2100 | |
| 5941 | Civilization | dfs and similar dp ds ternary search trees | Statement | C | Codeforces Round 260 (Div. 1) {455} | PROGRAMMING | Codeforces Round #260 — Editorial | 2200 | |
| 6035 | Appleman and Tree | dfs and similar dp trees | Statement | B | Codeforces Round 263 (Div. 1) {461} | PROGRAMMING | Tutorial | 2200 | |
| 2346 | Information Graph | dfs and similar ds graphs trees | Statement | E | Codeforces Round 266 (Div. 2) {466} | PROGRAMMING | Editorial Codeforces Round #266 (Div. 2) | 2400 | |
| 5701 | Design Tutorial: Inverse the Problem | dfs and similar ds shortest paths trees | Statement | D | Codeforces Round 270 {472} | PROGRAMMING | Editorial | 1900 | |
| 4129 | Valid Sets | dfs and similar dp math trees | Statement | D | Codeforces Round 277 (Div. 2) {486} | PROGRAMMING | Codeforces Round #277(Div. 2) Editorial | 2300 | |
| 2483 | Work Group | dfs and similar dp graphs strings trees | Statement | B | VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) {533} | PROGRAMMING | 2000 | ||
| 1568 | Demiurges Play Again | dfs and similar dp math trees | Statement | E | Codeforces Round 300 {538} | PROGRAMMING | 2200 | ||
| 2509 | Case of Computer Network | dfs and similar graphs trees | Statement | E | Codeforces Round 310 (Div. 1) {555} | PROGRAMMING | 2800 | ||
| 930 | Matching Names | dfs and similar strings trees | Statement | A | VK Cup 2015 - Finals, online mirror {566} | PROGRAMMING | 2300 | ||
| 787 | Logistical Questions | dfs and similar divide and conquer trees | Statement | C | VK Cup 2015 - Finals, online mirror {566} | PROGRAMMING | 3000 | ||
| 1115 | Bribes | dfs and similar graphs trees | Statement | B | Bubble Cup 8 - Finals [Online Mirror] {575} | PROGRAMMING | 2300 | ||
| 46573 | Kefa and Park | dfs and similar graphs trees | Statement | C | Codeforces Round 321 (Div. 2) {580} | PROGRAMMING | 1500 | ||
| 2718 | Super M | dfs and similar dp graphs trees | Statement | D | Codeforces Round 328 (Div. 2) {592} | PROGRAMMING | 2200 | ||
| 3292 | Kingdom and its Cities | dfs and similar divide and conquer dp graphs sortings trees | Statement | D | Codeforces Round 339 (Div. 1) {613} | PROGRAMMING | 2800 | ||
| 1779 | Hamiltonian Spanning Tree | dfs and similar dp graph matchings greedy trees | Statement | D | Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) {618} | PROGRAMMING | Wunder Fund Round 2016 Editorials | 2200 | |
| 2198 | Ants in Leaves | dfs and similar greedy sortings trees | Statement | E | Educational Codeforces Round 7 {622} | PROGRAMMING | Editorial of Educational Codeforces Round 7 | 2300 | |
| 244 | Island Puzzle | dfs and similar ds graphs trees | Statement | F | 8VC Venture Cup 2016 - Final Round {627} | PROGRAMMING | 3400 | ||
| 1053 | The Chocolate Spree | dfs and similar dp graphs trees | Statement | F | Manthan, Codefest 16 {633} | PROGRAMMING | 2500 | ||
| 2360 | Pursuit For Artifacts | dfs and similar ds graphs trees | Statement | E | Educational Codeforces Round 10 {652} | PROGRAMMING | 2300 | ||
| 1596 | Bear and Forgotten Tree 2 | dfs and similar ds graphs trees | Statement | E | IndiaHacks 2016 - Online Edition (Div. 1 + Div. 2) {653} | PROGRAMMING | 2400 | ||
| 7472 | Alyona and the Tree | dfs and similar dp graphs trees | Statement | C | Codeforces Round 358 (Div. 2) {682} | PROGRAMMING | 45491 | 1700 | |
| 4224 | Brain Network (medium) | dfs and similar graphs trees | Statement | C2 | Helvetic Coding Contest 2016 online mirror (teams, unrated) {690} | PROGRAMMING | Tutotial | 1600 | |
| 3573 | Puzzles | dfs and similar math probabilities trees | Statement | B | Codeforces Round 362 (Div. 1) {696} | PROGRAMMING | Codeforces Round #362 (Editorial) | 1800 | |
| 4192 | Connecting Universities | dfs and similar dp graphs trees | Statement | B | Codeforces Round 364 (Div. 1) {700} | PROGRAMMING | 2100 | ||
| 2276 | Digit Tree | dfs and similar divide and conquer ds trees | Statement | C | Codeforces Round 372 (Div. 1) {715} | PROGRAMMING | 2800 | ||
| 4469 | Anton and Tree | dfs and similar dp trees | Statement | E | Codeforces Round 379 (Div. 2) {734} | PROGRAMMING | 2100 | ||
| 4452 | Chloe and pleasant prizes | dfs and similar dp graphs trees | Statement | D | Codeforces Round 384 (Div. 2) {743} | PROGRAMMING | 1800 | ||
| 13072 | PolandBall and Forest | dfs and similar ds graphs interactive trees | Statement | C | 8VC Venture Cup 2017 - Elimination Round {755} | PROGRAMMING | 1300 | ||
| 508 | Broken Tree | dfs and similar dp graphs greedy trees | Statement | E | Codeforces Round 392 (Div. 2) {758} | PROGRAMMING | 2900 | ||
| 10997 | Timofey and a tree | dfs and similar dp ds graphs implementation trees | Statement | A | Codeforces Round 395 (Div. 1) {763} | PROGRAMMING | Codeforces Round #395 [Editorial] | 1600 | |
| 1303 | 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 | |
| 4315 | Garland | dfs and similar graphs greedy trees | Statement | C | Codeforces Round 398 (Div. 2) {767} | PROGRAMMING | 2000 | ||
| 3209 | Bear and Tree Jumps | dfs and similar dp trees | Statement | C | VK Cup 2017 - Round 1 {771} | PROGRAMMING | 2100 | ||
| 9375 | Andryusha and Colored Balloons | dfs and similar graphs greedy trees | Statement | C | Технокубок 2017 - Финал (только для онсайт-финалистов) {780} | PROGRAMMING | Technocup 2017 Finals and Codeforces Round #403 Editorial | 1500 | |
| 5425 | Send the Fool Further! (easy) | dfs and similar graphs trees | Statement | J | Helvetic Coding Contest 2017 online mirror (teams allowed, unrated) {802} | PROGRAMMING | 1500 | ||
| 327 | Send the Fool Further! (hard) | dfs and similar dp math trees | Statement | L | Helvetic Coding Contest 2017 online mirror (teams allowed, unrated) {802} | PROGRAMMING | 2800 | ||
| 337 | Sagheer and Kindergarten | dfs and similar graphs implementation trees | Statement | D | Codeforces Round 417 (Div. 2) {812} | PROGRAMMING | 2700 | ||
| 2384 | An overnight dance in discotheque | dfs and similar dp geometry greedy trees | Statement | D | Codeforces Round 418 (Div. 2) {814} | PROGRAMMING | 2000 | ||
| 1277 | Tree Queries | dfs and similar graphs trees | Statement | G | Educational Codeforces Round 25 {825} | PROGRAMMING | Educational Codeforces Round 25 - Editorial | 2600 | |
| 3966 | Misha, Grisha and Underground | dfs and similar graphs trees | Statement | D | Codeforces Round 425 (Div. 2) {832} | PROGRAMMING | 1900 | ||
| 1126 | Roads in the Kingdom | dfs and similar dp graphs trees | Statement | F | Codeforces Round 427 (Div. 2) {835} | PROGRAMMING | Editorial | 2400 | |
| 17792 | Journey | dfs and similar dp graphs probabilities trees | Statement | C | Codeforces Round 428 (Div. 2) {839} | PROGRAMMING | 1500 | ||
| 3554 | Ilya And The Tree | dfs and similar graphs math number theory trees | Statement | C | Codeforces Round 430 (Div. 2) {842} | PROGRAMMING | Tutorial Codeforces Round #430 (Div. 2) | 2000 | |
| 928 | Chemistry in Berland | dfs and similar greedy trees | Statement | E | Educational Codeforces Round 28 {846} | PROGRAMMING | 2400 | ||
| 325 | Berland SU Computer Network | dfs and similar hashing trees | Statement | L | 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest, qualification stage (Online Mirror, ACM-ICPC Rules, Teams Preferred) {847} | PROGRAMMING | 2500 | ||
| 243 | Harry Vs Voldemort | dfs and similar dp graphs trees | Statement | G | Manthan, Codefest 17 {855} | PROGRAMMING | 3000 | ||
| 19894 | Mahmoud and Ehab and the bipartiteness | dfs and similar graphs trees | Statement | B | Codeforces Round 435 (Div. 2) {862} | PROGRAMMING | Codeforces round #435 editorial | 1400 | |
| 648 | Cities Excursions | dfs and similar graphs trees | Statement | F | Codeforces Round 436 (Div. 2) {864} | PROGRAMMING | 2700 | ||
| 1257 | Points, Lines and Ready-made Titles | dfs and similar ds graphs trees | Statement | E | Technocup 2018 - Elimination Round 2 {870} | PROGRAMMING | Editorial Codeforces Round 440 Div.1+Div.2 (and Technocup 2018 — Elimination Round 2) | 2400 | |
| 203 | Sloth | dfs and similar dp graph matchings trees | Statement | D | Codeforces Round 446 (Div. 1) {891} | PROGRAMMING | Codeforces Round #446 Editorial | 3000 | |
| 7581 | Peculiar apple-tree | dfs and similar graphs trees | Statement | A | Codeforces Round 468 (Div. 1, based on Technocup 2018 Final Round) {930} | PROGRAMMING | 1500 | ||
| 906 | Fafa and Ancient Mathematics | dfs and similar dp trees | Statement | E | Codeforces Round 465 (Div. 2) {935} | PROGRAMMING | editorial | 2500 | |
| 1399 | Simple Cycles Edges | dfs and similar graphs trees | Statement | F | Educational Codeforces Round 42 (Rated for Div. 2) {962} | PROGRAMMING | Educational Codeforces Round 42 Editorial | 2400 | |
| 6627 | Kuro and Walking Route | dfs and similar trees | Statement | C | Codeforces Round 482 (Div. 2) {979} | PROGRAMMING | Codeforces Round #482 (Div. 2) Editorial | 1600 | |
| 12560 | Cut 'em all! | dfs and similar dp graphs greedy trees | Statement | C | Codeforces Round 484 (Div. 2) {982} | PROGRAMMING | Editorial | 1500 | |
| 956 | Flow Control | dfs and similar dp greedy trees | Statement | F | Educational Codeforces Round 45 (Rated for Div. 2) {990} | PROGRAMMING | Educational Codeforces Round 45 Editorial | 2500 | |
| 5158 | We Need More Bosses | dfs and similar graphs trees | Statement | E | Educational Codeforces Round 46 (Rated for Div. 2) {1000} | PROGRAMMING | 60288 | 2100 | |
| 10343 | Military Problem | dfs and similar graphs trees | Statement | E | Codeforces Round 498 (Div. 3) {1006} | PROGRAMMING | 60672 | 1600 | |
| 2416 | Mars rover | dfs and similar graphs implementation trees | Statement | D | Codeforces Round 499 (Div. 1) {1010} | PROGRAMMING | 60851 | 2100 | |
| 842 | Road Projects | dfs and similar dp trees | Statement | F | Educational Codeforces Round 48 (Rated for Div. 2) {1016} | PROGRAMMING | Разбор Educational Codeforces Round 48 | 2600 | |
| 922 | Mobile Phone Network | dfs and similar ds graphs trees | Statement | F | Codeforces Round 504 (rated, Div. 1 + Div. 2, based on VK Cup 2018 Final) {1023} | PROGRAMMING | Codeforces Round 504 Editorial | 2600 | |
| 15883 | Valid BFS? | dfs and similar graphs shortest paths trees | Statement | D | Manthan, Codefest 18 (rated, Div. 1 + Div. 2) {1037} | PROGRAMMING | Tutorial | 1700 | |
| 1625 | Intersecting Subtrees | dfs and similar interactive trees | Statement | B | Lyft Level 5 Challenge 2018 - Final Round {1044} | PROGRAMMING | Lyft Level 5 Challenge 2018 — Final Round — Editorial | 1900 | |
| 744 | Hyperspace Highways | dfs and similar graphs trees | Statement | C | Bubble Cup 11 - Finals [Online Mirror, Div. 1] {1045} | PROGRAMMING | 2500 | ||
| 3254 | Sergey and Subway | dfs and similar dp trees | Statement | E | Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2) {1060} | PROGRAMMING | User editorial for Codeforces Round 513 by Barcelona Bootcamp (rated, Div. 1 + Div. 2) | 2000 | |
| 1234 | Up and Down the Tree | dfs and similar dp trees | Statement | F | Educational Codeforces Round 52 (Rated for Div. 2) {1065} | PROGRAMMING | Educational Codeforces Round 52 Editorial | 2500 | |
| 563 | Choosing Two Paths | dfs and similar dp greedy trees | Statement | F | Educational Codeforces Round 53 (Rated for Div. 2) {1073} | PROGRAMMING | 62742 | 2800 | |
| 8845 | Tree with Maximum Cost | dfs and similar dp trees | Statement | F | Codeforces Round 527 (Div. 3) {1092} | PROGRAMMING | Codeforces Round #527 (Div. 3) Editorial | 2100 | |
| 6182 | Tree Cutting (Easy Version) | dfs and similar trees | Statement | F1 | Codeforces Round 540 (Div. 3) {1118} | PROGRAMMING | 65396 | 1800 | |
| 1530 | Power Tree | dfs and similar dp ds graphs greedy trees | Statement | D | Codeforces Round 543 (Div. 1, based on Technocup 2019 Final Round) {1120} | PROGRAMMING | Разбор задач финала Технокубка 2019 и Codeforces Round #543 | 2400 | |
| 13589 | Edgy Trees | dfs and similar ds graphs math trees | Statement | C | Codeforces Round 548 (Div. 2) {1139} | PROGRAMMING | Codeforces Round #548 Editorial | 1500 | |
| 13800 | Queen | dfs and similar trees | Statement | C | Codeforces Round 549 (Div. 2) {1143} | PROGRAMMING | Codeforces Round #549 Editorial | 1400 | |
| 4106 | 0-1-Tree | dfs and similar divide and conquer dp ds trees | Statement | D | Educational Codeforces Round 64 (Rated for Div. 2) {1156} | PROGRAMMING | 66827 | 2300 | |
| 11873 | Cover it! | dfs and similar ds graphs shortest paths trees | Statement | E | Codeforces Round 565 (Div. 3) {1176} | PROGRAMMING | 67598 | 1700 | |
| 983 | Daleks' Invasion (medium) | dfs and similar graphs shortest paths trees | Statement | E2 | Helvetic Coding Contest 2019 online mirror (teams allowed, unrated) {1184} | PROGRAMMING | helvetic-coding-contest-2019-editorial.pdf | 2200 |