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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 6789 | Mail Stamps | data structures dfs and similar graphs implementation | Statement | C | Codeforces Beta Round 29 (Див. 2, Codeforces format) {29} | PROGRAMMING | My solution @ Round #29, [without Problem E] | 1700 | |
| 110 | Harry Potter and Moving Staircases | dfs and similar implementation | Statement | E | Codeforces Beta Round 60 {65} | PROGRAMMING | Codeforces Beta Round #60: tutorial | 2900 | |
| 464 | Pairs | dfs and similar dp dsu graphs implementation trees | Statement | E | Яндекс.Алгоритм 2011: Квалификация 1 {81} | PROGRAMMING | 2600 | ||
| 1109 | Beautiful Road | dfs and similar dp dsu graphs implementation sortings trees | Statement | D | Codeforces Beta Round 73 (Div. 1 Only) {87} | PROGRAMMING | CodeForces Beta Round #73 div. 1 analysis (particulary with div. 2) | 2300 | |
| 14172 | Students and Shoelaces | brute force dfs and similar graphs implementation | Statement | B | Codeforces Beta Round 94 (Div. 2 Only) {129} | PROGRAMMING | Problem D of Beta Round 94 | 1200 | |
| 1078 | Snake | bitmasks dfs and similar graphs implementation | Statement | D | Codeforces Round 139 (Div. 2) {225} | PROGRAMMING | Tutorial | 2300 | |
| 672 | 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 | |
| 3064 | Inna and Dima | dfs and similar dp graphs implementation | Statement | C | Codeforces Round 220 (Div. 2) {374} | PROGRAMMING | Codeforces Round #220 (Div. 2) разбор | 2000 | |
| 756 | 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 | |
| 7497 | Gargari and Permutations | dfs and similar dp graphs implementation | Statement | D | Codeforces Round 264 (Div. 2) {463} | PROGRAMMING | CF 264 Div 2 Tutorial | 2000 | |
| 9428 | Strongly Connected City | brute force dfs and similar graphs implementation | Statement | B | Bayan 2015 Contest Warm Up {475} | PROGRAMMING | Bayan 2015 Contest Warm Up Editorial | 1400 | |
| 65060 | New Year Transportation | dfs and similar graphs implementation | Statement | A | Good Bye 2014 {500} | PROGRAMMING | Tutorial 2 | 1100 | |
| 65782 | 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 | |
| 407 | Bear and Chase | brute force dfs and similar graphs implementation math probabilities | Statement | D | Codeforces Round 356 (Div. 1) {679} | PROGRAMMING | Codeforces Round #356 — Editorial | 2900 | |
| 7627 | Lakes in Berland | dfs and similar dsu graphs greedy implementation | Statement | D | Codeforces Round 375 (Div. 2) {723} | PROGRAMMING | 1600 | ||
| 12343 | Timofey and a tree | dfs and similar dp dsu graphs implementation trees | Statement | A | Codeforces Round 395 (Div. 1) {763} | PROGRAMMING | Codeforces Round #395 [Editorial] | 1600 | |
| 3011 | Online Courses In BSU | *special dfs and similar graphs implementation | Statement | C | VK Cup 2017 - Квалификация 2 {770} | PROGRAMMING | 1900 | ||
| 4927 | Igor and his way to work | dfs and similar graphs implementation shortest paths | Statement | B | Tinkoff Challenge - Elimination Round {793} | PROGRAMMING | 51685 | 1600 | |
| 387 | Sagheer and Kindergarten | dfs and similar graphs implementation trees | Statement | D | Codeforces Round 417 (Div. 2) {812} | PROGRAMMING | [Editorial] Codeforces Round #417 (Div. 2) | 2700 | |
| 2432 | National Property | 2-sat dfs and similar graphs implementation | Statement | C | Codeforces Round 441 (Div. 1, по задачам МКОШП) {875} | PROGRAMMING | Codeforces Round #441. Editorial. | 2100 | |
| 15643 | Protect Sheep | brute force dfs and similar graphs implementation | Statement | A | Codeforces Round 470 (рейтинговый, Div. 2, по задачам VK Cup 2018 Раунд 1) {948} | PROGRAMMING | VK Cup 2018 Round 1 and CF Round #470 (div. 1 & 2) editorial | 1000 | |
| 2633 | Mars rover | dfs and similar graphs implementation trees | Statement | D | Codeforces Round 499 (Div. 1) {1010} | PROGRAMMING | 60851 | 2100 | |
| 16581 | King Escape | dfs and similar graphs implementation | Statement | A | Lyft Level 5 Challenge 2018 - Elimination Round {1033} | PROGRAMMING | The Lyft Level 5 Challenge 2018 Elimination Round (Div. 1 + Div. 2) Editorial | 1000 | |
| 4191 | Fun with Integers | dfs and similar graphs implementation math | Statement | D | Codeforces Round 520 (Div. 2) {1062} | PROGRAMMING | Tutorial | 1800 | |
| 4477 | Kilani and the Game | dfs and similar graphs implementation shortest paths | Statement | D | Codeforces Round 533 (Div. 2) {1105} | PROGRAMMING | Tutorial | 1900 | |
| 1220 | Vus the Cossack and a Graph | dfs and similar graphs greedy implementation | Statement | F | Codeforces Round 571 (Div. 2) {1186} | PROGRAMMING | E | 2300 | |
| 1246 | Graph Traveler | brute force data structures dfs and similar dp graphs implementation math number theory | Statement | F | Codeforces Round 578 (Div. 2) {1200} | PROGRAMMING | Codeforces Round #578 (Div. 2) Editorial | 2500 | |
| 3163 | Unstable String Sort | data structures dfs and similar dsu graphs greedy implementation strings | Statement | F | Codeforces Round 582 (Div. 3) {1213} | PROGRAMMING | Codeforces Round #582 (Div. 3) Editorial | 2400 | |
| 1474 | 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 |
| 3670 | Nash Matrix | constructive algorithms dfs and similar graphs implementation | Statement | D | CodeCraft-20 (Div. 2) {1316} | PROGRAMMING | 1750.0 | Codecraft-20 (Div.2) Editorial | 2000 |
| 4931 | 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 |
| 5184 | Ehab's Last Corollary | constructive algorithms data structures dfs and similar dp graphs implementation trees | Statement | D | Codeforces Round 649 (Div. 2) {1364} | PROGRAMMING | 2000.0 | Codeforces round #649 editorial | 2100 |
| 21583 | 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 |
| 1989 | Columns Swaps | 2-sat dfs and similar dsu graphs implementation | Statement | G | Codeforces Round 656 (Div. 3) {1385} | PROGRAMMING | Codeforces Round #656 (Div. 3) Editorial | 2300 | |
| 6997 | Captain Flint and Treasure | data structures dfs and similar dp graphs greedy implementation trees | Statement | D | Codeforces Round 660 (Div. 2) {1388} | PROGRAMMING | 2000.0 | Codeforces Round #660 Editorial | 2000 |
| 685 | Rain of Fire | binary search dfs and similar dsu graphs implementation sortings | Statement | F | Codeforces Round 671 (Div. 2) {1419} | PROGRAMMING | 3000.0 | Codeforces Round #671 Editorial | |
| 15596 | Minimum Ties | brute force constructive algorithms dfs and similar graphs greedy implementation math | Statement | C | Educational Codeforces Round 104 (рейтинговый для Див. 2) {1487} | PROGRAMMING | 87873 | ||
| 2412 | Nastia Plays with a Tree | constructive algorithms data structures dfs and similar dp flows graphs greedy implementation trees | Statement | D | Codeforces Round 720 (Div. 2) {1521} | PROGRAMMING | 2250.0 | 90477 | |
| 895 | One-Four Overload | 2-sat constructive algorithms dfs and similar geometry graphs implementation | Statement | F | Codeforces Round 742 (Div. 2) {1567} | PROGRAMMING | 2750.0 | Codeforces Round #742 Editorial | |
| 4931 | 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 | ||
| 724 | Mashtali: a Space Oddysey | constructive algorithms dfs and similar graphs implementation | Statement | F | Codeforces Global Round 17 {1610} | PROGRAMMING | 2750.0 | Codeforces Global Round 17 Editorial | |
| 1081 | 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) | |
| 623 | Air Reform | data structures dfs and similar divide and conquer dsu graphs implementation trees | Statement | E | Codeforces Round 775 (Div. 1, по задачам Открытой олимпиады школьников по программированию) {1648} | PROGRAMMING | 2500.0 | Codeforces Round #775 Editorial | |
| 1293 | 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 | ||
| 1627 | Circular Maze | dfs and similar graphs implementation | Statement | O | SWERC 2021-2022 - Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1662} | PROGRAMMING | 102042 | ||
| 11208 | Where is the Pizza? | data structures dfs and similar dsu graphs implementation math | Statement | C | Codeforces Round 788 (Div. 2) {1670} | PROGRAMMING | 1750.0 | Tutorial | 1400 |
| 1493 | Coloring | brute force combinatorics constructive algorithms dfs and similar dp dsu graphs implementation | Statement | E | Educational Codeforces Round 130 (рейтинговый для Div. 2) {1697} | PROGRAMMING | 103835 | ||
| 4505 | Koxia and Game | data structures dfs and similar dsu games graph matchings graphs implementation | Statement | D | Good Bye 2022: 2023 is NEAR {1770} | PROGRAMMING | 1500.0 | Good Bye 2022 -- Editorial | |
| 4025 | Monsters | brute force data structures dfs and similar dsu graphs implementation trees | Statement | E | CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!) {1810} | PROGRAMMING | 2000.0 | Editorial of CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!) | |
| 2289 | Is It Flower? | dfs and similar dsu graphs implementation | Statement | F | Codeforces Round 863 (Div. 3) {1811} | PROGRAMMING | 114788 | ||
| 28053 | The Lakes | dfs and similar dsu graphs implementation | Statement | E | Codeforces Round 871 (Div. 4) {1829} | PROGRAMMING | Codeforces Round 871 (Div. 4) Editorial | 1100 | |
| 2165 | Railguns | dfs and similar dp graphs implementation | Statement | F | Codeforces Round 878 (Div. 3) {1840} | PROGRAMMING | Codeforces Round #878 (Div.3) Editorial | ||
| 10286 | The Third Letter | dfs and similar graphs greedy implementation | Statement | H | Codeforces Round 886 (Div. 4) {1850} | PROGRAMMING | Codeforces Round #886 (Div. 4) Editorial | ||
| 7015 | Cyclic Operations | constructive algorithms dfs and similar graphs greedy implementation | Statement | D | Codeforces Round 897 (Div. 2) {1867} | PROGRAMMING | 2000.0 | ||
| 7740 | Selling a Menagerie | dfs and similar dsu graphs implementation math | Statement | F | Codeforces Round 895 (Div. 3) {1872} | PROGRAMMING | Codeforces Round 895 (Div. 3) Editorial | ||
| 1009 | Game of Stacks | dfs and similar graphs implementation trees | Statement | D | Codeforces Round 906 (Div. 1) {1889} | PROGRAMMING | 2000.0 | Codeforces Round 906 Editorial | |
| 2765 | Transitive Graph | constructive algorithms dfs and similar dp graphs implementation | Statement | E | Codeforces Round 911 (Div. 2) {1900} | PROGRAMMING | 2250.0 | Codeforces Round 911 (Div. 2) Editorial | |
| 2453 | Lights | constructive algorithms dfs and similar graphs greedy implementation | Statement | G | Codeforces Round 913 (Div. 3) {1907} | PROGRAMMING | Codeforces Round 913 (Div. 3) Editorial | ||
| 1173 | Caterpillar on a Tree | binary search dfs and similar graphs greedy implementation trees | Statement | F | Codeforces Round 922 (Div. 2) {1918} | PROGRAMMING | 3000.0 | Codeforces Round #922 (Div. 2) Editorial | |
| 4702 | Vlad and Trouble at MIT | dfs and similar dp flows graphs greedy implementation trees | Statement | G | Codeforces Round 928 (Div. 4) {1926} | PROGRAMMING | 126132 | ||
| 12845 | Chat Screenshots | combinatorics dfs and similar graphs implementation | Statement | F | Codeforces Round 925 (Div. 3) {1931} | PROGRAMMING | 125878 | ||
| 1007 | 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 |
| 7495 | Maximize the Largest Component (Easy Version) | brute force data structures dfs and similar dsu graphs implementation | Statement | H1 | Codeforces Round 952 (Div. 4) {1985} | PROGRAMMING | Codeforces Round 952 (Div. 4) Editorial | ||
| 4744 | Turtle and a MEX Problem (Hard Version) | dfs and similar dp graphs greedy implementation | Statement | D2 | Codeforces Round 968 (Div. 2) {2003} | PROGRAMMING | 1250.0 | sol-zh.pdf | |
| 3859 | 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 | |
| 9431 | Trapped in the Witch's Labyrinth | constructive algorithms dfs and similar graphs implementation | Statement | C | Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2) {2034} | PROGRAMMING | 1500.0 | Rayan 2024 Selection Round Editorial | |
| 1879 | Matrix Transformation | bitmasks brute force dfs and similar graphs implementation | Statement | E | Educational Codeforces Round 173 (Rated for Div. 2) {2043} | PROGRAMMING | Educational Codeforces Round 173 Editorial | ||
| 4071 | Medium Demon Problem (hard version) | dfs and similar dp dsu graphs implementation trees | Statement | G2 | Codeforces Round 993 (Div. 4) {2044} | PROGRAMMING | Codeforces Round 993 (Div. 4) Editorial | ||
| 2336 | Mirror Maze | brute force dfs and similar graphs implementation | Statement | M | 2024-2025 ICPC Asia Jakarta Regional Contest (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {2045} | PROGRAMMING | raRzKDJLPHcUnqTcwvGznwEdKiDWjEkd.pdf | 1800 | |
| 4609 | Resourceful Caterpillar Sequence | dfs and similar dp games graphs implementation trees | Statement | E | Good Bye 2024: 2025 is NEAR {2053} | PROGRAMMING | 2000.0 | Good Bye 2024: 2025 is NEAR Editorial | |
| 18277 | Find the Permutation | dfs and similar graphs implementation sortings | Statement | B | Codeforces Round 997 (Div. 2) {2056} | PROGRAMMING | 1250.0 | Codeforces Round #997 (Div. 2) Editorial | |
| 16661 | Disappearing Permutation | dfs and similar dsu graphs greedy implementation | Statement | C | Educational Codeforces Round 177 (Rated for Div. 2) {2086} | PROGRAMMING | Educational Codeforces Round 177 Editorial | ||
| 4089 | Local Construction | constructive algorithms dfs and similar graphs implementation two pointers | Statement | D | Codeforces Round 1019 (Div. 2) {2103} | PROGRAMMING | 2000.0 | 142149 | |
| 942 | 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 | |
| 2586 | Red Light, Green Light (Hard version) | binary search dfs and similar dp dsu graphs implementation number theory | Statement | D2 | Codeforces Round 1030 (Div. 2) {2118} | PROGRAMMING | 1000.0 | Codeforces Round 1030 (Div. 2) Editorial | |
| 8687 | Red Light, Green Light (Easy version) | brute force dfs and similar dp graphs implementation | Statement | D1 | Codeforces Round 1030 (Div. 2) {2118} | PROGRAMMING | 1250.0 | Codeforces Round 1030 (Div. 2) Editorial | |
| 2691 | 23 Rises Again | brute force data structures dfs and similar dp flows graphs implementation probabilities trees | Statement | H | Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) {2127} | PROGRAMMING | 4000.0 | Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) Editorial |