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Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 6167 | Fix a Tree | constructive algorithms dfs and similar dsu graphs trees | Statement | B | Codeforces Round 363 (Div. 1) {698} | PROGRAMMING | 46148 | 1700 | |
| 2882 | Weird journey | combinatorics constructive algorithms dfs and similar dsu graphs | Statement | B | Codeforces Round 407 (Div. 1) {788} | PROGRAMMING | Codeforces Round #407(Div.1 + Div.2) Editorial | 2200 | |
| 4381 | Chemical table | constructive algorithms dfs and similar dsu graphs matrices | Statement | B | Codeforces Round 500 (Div. 1) [based on EJOI] {1012} | PROGRAMMING | 60920 | 1900 | |
| 3797 | Spanning Tree with One Fixed Degree | constructive algorithms dfs and similar dsu graphs greedy | Statement | F2 | Codeforces Round 544 (Div. 3) {1133} | PROGRAMMING | Codeforces Round #544 (Div. 3) Editorial | 2200 | |
| 10229 | Harmonious Graph | constructive algorithms dfs and similar dsu graphs greedy sortings | Statement | D | Codeforces Round 600 (Div. 2) {1253} | PROGRAMMING | Editorial | 1700 | |
| 6348 | Monopole Magnets | constructive algorithms dfs and similar dsu graphs | Statement | B | Codeforces Round 639 (Div. 1) {1344} | PROGRAMMING | 1000.0 | Codeforces Round #639 Editorial | 2000 |
| 1828 | Johnny and Megan's Necklace | binary search bitmasks constructive algorithms dfs and similar dsu graphs | Statement | C | Codeforces Round 647 (Div. 1) - Thanks, Algo Muse! {1361} | PROGRAMMING | 2000.0 | Codeforces Round #647 Editorial | 2500 |
| 20687 | 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 |
| 4177 | Strange Housing | constructive algorithms dfs and similar dsu graph matchings graphs | Statement | D | Codeforces Round 694 (Div. 1) {1470} | PROGRAMMING | 1500.0 | 86464 | |
| 2068 | Phoenix and Earthquake | constructive algorithms dfs and similar dsu graphs greedy trees | Statement | F | Codeforces Global Round 14 {1515} | PROGRAMMING | 3250.0 | Editorial | |
| 2803 | Figure Fixing | constructive algorithms dfs and similar dsu graphs math | Statement | F | Codeforces Round 726 (Div. 2) {1537} | PROGRAMMING | 2000.0 | Codeforces Round #726 (Div.2) Editorial | |
| 3048 | 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 |
| 9321 | The Number of Imposters | constructive algorithms dfs and similar dp dsu graphs | Statement | D | Codeforces Round 747 (Div. 2) {1594} | PROGRAMMING | 1750.0 | 95525 | 1700 |
| 2720 | Cars | constructive algorithms dfs and similar dsu graphs greedy sortings | Statement | E | Codeforces Round 772 (Div. 2) {1635} | PROGRAMMING | 2250.0 | Codeforces Round #772 Editorial | |
| 4073 | Tokitsukaze and Two Colorful Tapes | constructive algorithms dfs and similar dsu graphs greedy | Statement | C | Codeforces Round 789 (Div. 1) {1677} | PROGRAMMING | 1250.0 | Tutorial | |
| 1357 | ANDfinity | bitmasks brute force constructive algorithms dfs and similar dsu graphs | Statement | E | Codeforces Round 798 (Div. 2) {1689} | PROGRAMMING | 2500.0 | Editorial for Codeforces Round #798 (Div. 2) | |
| 1127 | Tree Recovery | bitmasks brute force constructive algorithms dfs and similar dsu graphs trees | Statement | F | Codeforces Global Round 21 {1696} | PROGRAMMING | 2500.0 | Editorial of Codeforces Global Round 21 | |
| 1449 | Coloring | brute force combinatorics constructive algorithms dfs and similar dp dsu graphs implementation | Statement | E | Educational Codeforces Round 130 (Rated for Div. 2) {1697} | PROGRAMMING | 103835 | ||
| 3740 | Permutation Addicts | constructive algorithms dfs and similar dsu graphs trees | Statement | D | Codeforces Global Round 22 {1738} | PROGRAMMING | 2000.0 | Editorial of Codeforces Global Round <strong>22</strong> | |
| 1146 | XOR, Tree, and Queries | constructive algorithms dfs and similar dsu graphs trees | Statement | F | Codeforces Round 851 (Div. 2) {1788} | PROGRAMMING | 3000.0 | Codeforces Round #851 (Div. 2) Editorial | |
| 2151 | Great Grids | constructive algorithms dfs and similar dsu graphs math | Statement | E | Codeforces Round 884 (Div. 1 + Div. 2) {1844} | PROGRAMMING | 2000.0 | Codeforces Round #884 (Div. 1 + Div. 2) Editorial | |
| 105 | Parallel Universes | *special constructive algorithms dfs and similar dsu graphs | Statement | A | XVIII Open Olympiad in Informatics - Final Stage, Day 2 (Unrated, Online Mirror, IOI rules) {1940} | PROGRAMMING | |||
| 3906 | Cool Graph | constructive algorithms data structures dfs and similar dsu graphs trees | Statement | D | Refact.ai Match 1 (Codeforces Round 985) {2029} | PROGRAMMING | 2250.0 | Refact.ai Match 1 (Codeforces Round 985) Editorial | |
| 4041 | 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 |