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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 1672 | Black and White Tree | constructive algorithms dsu graphs greedy trees | Statement | D | Codeforces Round 158 (Div. 2) {260} | PROGRAMMING | Codeforces Round #158 (Div. 2) Tutorial | 2200 | |
| 9549 | Ciel the Commander | constructive algorithms dfs and similar divide and conquer greedy trees | Statement | C | Codeforces Round 190 (Div. 1) {321} | PROGRAMMING | Codeforces Round #190 — Editorial | 2500 | |
| 1042 | Guess the Tree | bitmasks constructive algorithms dp greedy trees | Statement | C | Codeforces Round 245 (Div. 1) {429} | PROGRAMMING | Codeforces Round #245 — Editorial | 2400 | |
| 6075 | Misha and Forest | constructive algorithms data structures greedy sortings trees | Statement | C | Codeforces Round 285 (Div. 2) {501} | PROGRAMMING | Tutorial | 1700 | |
| 1925 | Invariance of Tree | constructive algorithms dfs and similar greedy trees | Statement | B | Codeforces Round 319 (Div. 1) {576} | PROGRAMMING | Editorial Codeforces Round #319 | 2300 | |
| 2386 | Dasha and Puzzle | constructive algorithms dfs and similar graphs greedy trees | Statement | E | Codeforces Round 394 (Div. 2) {761} | PROGRAMMING | Codeforces Round #394 (Div. 2) [Editorial] | 2000 | |
| 3715 | High Load | constructive algorithms greedy implementation trees | Statement | B | Codeforces Round 423 (Div. 1, rated, based on VK Cup Finals) {827} | PROGRAMMING | Codeforces Round #423 Analysis | 1800 | |
| 1247 | Road Widening | constructive algorithms greedy implementation | Statement | K | 2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest (Online Mirror, ACM-ICPC Rules, Teams Preferred) {883} | PROGRAMMING | 2100 | ||
| 2313 | Tree Destruction | constructive algorithms dfs and similar graphs greedy trees | Statement | F | Educational Codeforces Round 35 (Rated for Div. 2) {911} | PROGRAMMING | T | 2500 | |
| 3017 | Destruction of a Tree | constructive algorithms dfs and similar dp greedy trees | Statement | B | Tinkoff Internship Warmup Round 2018 and Codeforces Round 475 (Div. 1) {963} | PROGRAMMING | Editorial Tinkoff Internship Warmup Round 2018 and Codeforces Round #475 (Div. 1 + Div. 2) | 2100 | |
| 6777 | Decorate Apple Tree | constructive algorithms dfs and similar dp graphs greedy sortings trees | Statement | D | Mail.Ru Cup 2018 Round 3 {1056} | PROGRAMMING | Mail.Ru Cup 2018 Round 3 Editorial | 1600 | |
| 2043 | Minimal Diameter Forest | constructive algorithms dfs and similar greedy trees | Statement | E | Codeforces Round 527 (Div. 3) {1092} | PROGRAMMING | Codeforces Round #527 (Div. 3) Editorial | 2500 | |
| 9624 | Sum in the tree | constructive algorithms dfs and similar greedy trees | Statement | A | Codeforces Round 530 (Div. 1) {1098} | PROGRAMMING | 64331 | 1600 | |
| 1165 | Construct a tree | binary search constructive algorithms dfs and similar graphs greedy trees | Statement | C | Codeforces Round 530 (Div. 1) {1098} | PROGRAMMING | 64331 | 2300 | |
| 2559 | Privatization of Roads in Treeland | binary search constructive algorithms dfs and similar graphs greedy trees | Statement | G | Codeforces Round 547 (Div. 3) {1141} | PROGRAMMING | 66062 | 2500 | |
| 995 | Tree Factory | constructive algorithms greedy trees | Statement | F | Technocup 2020 - Elimination Round 2 {1225} | PROGRAMMING | 70898 | 2500 | |
| 2117 | DIY Garland | constructive algorithms greedy trees | Statement | F | Codeforces Round 611 (Div. 3) {1283} | PROGRAMMING | Codeforces Round #611 (Div. 3) Editorial | 2400 | |
| 5559 | Numbers on Tree | constructive algorithms data structures dfs and similar graphs greedy trees | Statement | B | Codeforces Round 612 (Div. 1) {1286} | PROGRAMMING | Codeforces Round #612 - Editorial | 2000 | |
| 3111 | Berland Beauty | constructive algorithms dfs and similar greedy sortings trees | Statement | F | Codeforces Round 617 (Div. 3) {1296} | PROGRAMMING | Codeforces Round #617 (Div. 3) Editorial | 2400 | |
| 17626 | Ehab and Path-etic MEXs | constructive algorithms dfs and similar greedy trees | Statement | C | Codeforces Round 628 (Div. 2) {1325} | PROGRAMMING | 1250.0 | 74235 | 1500 |
| 9620 | Edge Weight Assignment | bitmasks constructive algorithms greedy math trees | Statement | B | Codeforces Round 633 (Div. 1) {1338} | PROGRAMMING | 1000.0 | Editorial | |
| 10652 | Maximum Distributed Tree | constructive algorithms dfs and similar greedy math number theory sortings trees | Statement | D | Codeforces Round 665 (Div. 2) {1401} | PROGRAMMING | 1750.0 | Codeforces Round #665 (Div. 2) Editorial | |
| 2830 | Dogeforces | brute force constructive algorithms divide and conquer dsu greedy implementation trees | Statement | D | Educational Codeforces Round 105 (Rated for Div. 2) {1494} | PROGRAMMING | Educational Codeforces Round 105 Editorial | ||
| 2100 | Phoenix and Earthquake | constructive algorithms dfs and similar dsu graphs greedy trees | Statement | F | Codeforces Global Round 14 {1515} | PROGRAMMING | 3250.0 | Editorial | |
| 2332 | 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 | |
| 16282 | Mocha and Diana (Easy Version) | brute force constructive algorithms dsu graphs greedy trees | Statement | D1 | Codeforces Round 738 (Div. 2) {1559} | PROGRAMMING | 1500.0 | Tutorial (en) | 1400 |
| 3128 | Mocha and Diana (Hard Version) | brute force constructive algorithms dfs and similar dsu graphs greedy trees two pointers | Statement | D2 | Codeforces Round 738 (Div. 2) {1559} | PROGRAMMING | 1500.0 | Tutorial (en) | 2500 |
| 3280 | Treelabeling | bitmasks constructive algorithms dfs and similar games graphs greedy trees | Statement | D | Codeforces Round 754 (Div. 2) {1605} | PROGRAMMING | 2000.0 | tutorial | 2100 |
| 2174 | Towers | constructive algorithms dfs and similar dp greedy trees | Statement | F | Codeforces Global Round 19 {1637} | PROGRAMMING | 3250.0 | Tutorial | |
| 13730 | Infected Tree | constructive algorithms dfs and similar dp greedy trees | Statement | C | Codeforces Round 798 (Div. 2) {1689} | PROGRAMMING | 1250.0 | Editorial for Codeforces Round #798 (Div. 2) | |
| 2472 | Tree Queries (Easy Version) | constructive algorithms dfs and similar dp greedy trees | Statement | D1 | Codeforces Round 801 (Div. 2) and EPIC Institute of Technology Round {1695} | PROGRAMMING | 1250.0 | Editorial for Codeforces Round #801 (Div. 2) and EPIC Institute of Technology Round | |
| 2307 | Tree Queries (Hard Version) | constructive algorithms dfs and similar dp greedy trees | Statement | D2 | Codeforces Round 801 (Div. 2) and EPIC Institute of Technology Round {1695} | PROGRAMMING | 1000.0 | Editorial for Codeforces Round #801 (Div. 2) and EPIC Institute of Technology Round | |
| 6044 | Permutation Graph | binary search constructive algorithms data structures greedy shortest paths trees | Statement | D | Codeforces Global Round 21 {1696} | PROGRAMMING | 2000.0 | Editorial of Codeforces Global Round 21 | |
| 3713 | Build a Tree and That Is It | brute force constructive algorithms greedy implementation trees | Statement | F | Codeforces Round 811 (Div. 3) {1714} | PROGRAMMING | Codeforces Round #811 (Div. 3) Editorial | ||
| 1398 | Connectivity Addicts | constructive algorithms dsu graphs greedy interactive shortest paths sortings trees | Statement | F | Codeforces Global Round 22 {1738} | PROGRAMMING | 2750.0 | Editorial of Codeforces Global Round <strong>22</strong> | |
| 5113 | Hanging Hearts | constructive algorithms data structures dfs and similar dp greedy trees | Statement | E | Codeforces Round 831 (Div. 1 + Div. 2) {1740} | PROGRAMMING | 2000.0 | Tutorial | 1800 |
| 20002 | Gardener and the Capybaras (hard version) | constructive algorithms greedy strings | Statement | A2 | Codeforces Round 843 (Div. 2) {1775} | PROGRAMMING | 500.0 | Codeforces Round #843 (Div. 2) Editorial | |
| 560 | Bus Routes | binary search constructive algorithms dfs and similar greedy trees | Statement | E | Codeforces Round 873 (Div. 1) {1827} | PROGRAMMING | 2500.0 | Codeforces Round #873 (Div. 1 & 2) Editorial | 3400 |
| 3218 | Trees and Segments | binary search brute force constructive algorithms data structures dp greedy two pointers | Statement | D | Codeforces Round 893 (Div. 2) {1858} | PROGRAMMING | 2000.0 | Codeforces Round #893 (Div. 2) Editorial | 2200 |
| 511 | Most Different Tree | brute force constructive algorithms dfs and similar greedy hashing | Statement | F | Codeforces Round 897 (Div. 2) {1867} | PROGRAMMING | 4000.0 | ||
| 612 | Andrey's Tree | binary search constructive algorithms dsu greedy implementation trees | Statement | F | Codeforces Round 932 (Div. 2) {1935} | PROGRAMMING | 3000.0 | Codeforces Round #932 (Div. 2) Editorial | |
| 2647 | Tree Compass | constructive algorithms dfs and similar greedy trees | Statement | C | Codeforces Round 934 (Div. 1) {1943} | PROGRAMMING | 1250.0 | Codeforces Round #934 (Div1, Div2) Editorial | |
| 1825 | Shuffle | constructive algorithms dp greedy trees | Statement | E | Codeforces Global Round 26 {1984} | PROGRAMMING | 3000.0 | Codeforces Global Round 26 Editorial | |
| 1937 | Alice's Adventures in the Rabbit Hole | constructive algorithms dfs and similar dp greedy math probabilities trees | Statement | E | Codeforces Round 986 (Div. 2) {2028} | PROGRAMMING | 2000.0 | Codeforces Round 986 (Div. 2) Editorial | |
| 5905 | Non Prime Tree | brute force constructive algorithms dfs and similar greedy number theory trees two pointers | Statement | D | Codeforces Round 992 (Div. 2) {2040} | PROGRAMMING | 2000.0 | Codeforces Round #992 (Div.2) Editorial | |
| 953 | Ain and Apple Tree | constructive algorithms greedy math trees | Statement | E | Codeforces Round 1023 (Div. 2) {2107} | PROGRAMMING | 2750.0 | Codeforces Round 1023 (Div 2) Editorial | |
| 12854 | Divine Tree | constructive algorithms greedy math sortings trees | Statement | C | Codeforces Round 1033 (Div. 2) and CodeNite 2025 {2120} | PROGRAMMING | 1250.0 | Codeforces Round 1033 (Div. 2) and CodeNite 2025 Editorial | |
| 3160 | Ancient Tree | constructive algorithms data structures dfs and similar dsu greedy trees | Statement | E | Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) {2127} | PROGRAMMING | 2500.0 | Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2) Editorial | |
| 10967 | Max Sum OR (Easy Version) | bitmasks constructive algorithms divide and conquer greedy trees | Statement | D1 | Codeforces Round 1052 (Div. 2) {2146} | PROGRAMMING | 1500.0 | Codeforces Round 1052 (Div. 2) Editorial | |
| 14819 | Cyclic Merging | brute force constructive algorithms graphs greedy trees | Statement | A | Codeforces Round 1064 (Div. 1) {2165} | PROGRAMMING | 500.0 | 148452 | |
| 2544 | Tree Coloring (Hard Version) | constructive algorithms data structures dfs and similar greedy implementation trees | Statement | D2 | Hello 2026 {2183} | PROGRAMMING | 2000.0 | ||
| 9163 | Tree Coloring (Easy Version) | constructive algorithms dfs and similar greedy trees | Statement | D1 | Hello 2026 {2183} | PROGRAMMING | 1000.0 | ||
| 56 | Bowser's Castle (Easy Version) | binary search constructive algorithms divide and conquer greedy interactive trees | Statement | H1 | Codeforces Round 1085 (Div. 1 + Div. 2) {2207} | PROGRAMMING | 3250.0 | Codeforces Round 1085 (Div. 1 + Div. 2) Editorial | |
| 4600 | Tree Orientation (Easy Version) | constructive algorithms dfs and similar dsu graphs greedy trees | Statement | D1 | Codeforces Round 1086 (Div. 2) {2208} | PROGRAMMING | 1250.0 | Tutorial |