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5464 Two Paths dfs and similar dp graphs shortest paths trees two pointers Statement D Codeforces Beta Round 14 (Div. 2) {14} PROGRAMMING Codeforces Beta Round #14 tutorial 2100
371 Galaxy Union dp trees two pointers Statement G School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules) {48} PROGRAMMING 2600
2174 Beaver data structures dp greedy hashing strings two pointers Statement C Codeforces Beta Round 71 {79} PROGRAMMING Codeforces Beta Round #71 Editorial 1800
232 Hellish Constraints brute force dp two pointers Statement E Codeforces Beta Round 99 (Div. 1) {138} PROGRAMMING Codeforces Beta Round #99: editorial 2900
14166 Another Problem on Strings binary search brute force dp math strings two pointers Statement C Codeforces Round 112 (Div. 2) {165} PROGRAMMING Codeforces Round #112 (Div. 2) Tutorial 1600
421 Shoe Store dp graph matchings greedy sortings two pointers Statement D Codeforces Round 113 (Div. 2) {166} PROGRAMMING Codeforces Round #113 (Div. 2) Tutorial 2400
2170 Cubes binary search dp two pointers Statement E Codeforces Round 116 (Div. 2, ACM-ICPC Rules) {180} PROGRAMMING 1700
2695 Towers dp greedy two pointers Statement D Codeforces Round 142 (Div. 1) {229} PROGRAMMING Codeforces Round #142 Problem Analysis 2000
252 Cubes data structures dp geometry two pointers Statement D Codeforces Round 150 (Div. 1) {243} PROGRAMMING Editorial for Codeforces Round #150 2700
12571 Physics Practical binary search dp sortings two pointers Statement B Codeforces Round 154 (Div. 2) {253} PROGRAMMING Codeforces Round #154 (Div. 2) — tutorial 1400
452 Maxim and Calculator brute force dp two pointers Statement E Codeforces Round 160 (Div. 1) {261} PROGRAMMING Codeforces Round #160 tutorial 2800
455 Colorful Stones dp two pointers Statement D Codeforces Round 162 (Div. 1) {264} PROGRAMMING Tutorial for E 2400
9109 Ladder dp implementation two pointers Statement C Codeforces Round 171 (Div. 2) {279} PROGRAMMING Unofficial editorial for Codeforces Round #171 (Div. 2) 1700
969 Context Advertising dp two pointers Statement B Croc Champ 2013 - Finals (online version, Div. 1) {309} PROGRAMMING Чемпионат КРОК 2013 — Финальный раунд — Разбор 2100
983 Diverse Substrings dp strings two pointers Statement C Testing Round 9 {386} PROGRAMMING 2100
12992 Prefixes and Suffixes dp string suffix structures strings two pointers Statement D Codeforces Round 246 (Div. 2) {432} PROGRAMMING Codeforces Round #246 (Div. 2) Editorial 2000
13791 DZY Loves Sequences dp implementation two pointers Statement A Codeforces Round #FF (Div. 1) {446} PROGRAMMING Codeforces Round #FF(255) Editorial 1700
43523 Number of Ways binary search brute force data structures dp two pointers Statement C Codeforces Round 266 (Div. 2) {466} PROGRAMMING Editorial Codeforces Round #266 (Div. 2) 1700
4470 Strip binary search data structures dp two pointers Statement B Codeforces Round 278 (Div. 1) {487} PROGRAMMING Tutorial 2300
59688 BerSU Ball dfs and similar dp graph matchings greedy sortings two pointers Statement B Codeforces Round 277.5 (Div. 2) {489} PROGRAMMING Codeforces Round #277.5 (Div. 2) Editorial [A-D for now] 1300
1333 Name That Tune dp probabilities two pointers Statement B Codeforces Round 284 (Div. 1) {498} PROGRAMMING Codeforces Round #284 Editorial 2500
7587 Mr. Kitayuta, the Treasure Hunter dfs and similar dp two pointers Statement C Codeforces Round 286 (Div. 2) {505} PROGRAMMING Tutorial 2100
1597 Drazil and Morning Exercise dfs and similar dp dsu trees two pointers Statement D Codeforces Round 292 (Div. 1) {516} PROGRAMMING 16468 2800
6963 A and B and Interesting Substrings data structures dp two pointers Statement D Codeforces Round 294 (Div. 2) {519} PROGRAMMING Editorial 1900
2459 Correcting Mistakes constructive algorithms dp greedy hashing strings two pointers Statement E VK Cup 2015 - Round 2 (unofficial online mirror, Div. 1 only) {533} PROGRAMMING Разбор VK Cup Round 2 1800
16015 Modulo Sum combinatorics data structures dp two pointers Statement B Codeforces Round 319 (Div. 2) {577} PROGRAMMING Editorial Codeforces Round #319 1800
1089 Zublicanes and Mumocrates dp trees two pointers Statement F Codeforces Round 322 (Div. 2) {581} PROGRAMMING Codeforces Round #322 (Div.2) Editorial 2600
12472 Approximating a Constant Range dp implementation two pointers Statement B Codeforces Round 333 (Div. 2) {602} PROGRAMMING Codeforces Round #333 — editorial 1400
2516 Skills binary search brute force dp greedy sortings two pointers Statement B Codeforces Round 339 (Div. 1) {613} PROGRAMMING Tutorial 2200
3525 Image Preview binary search brute force dp two pointers Statement B Codeforces Round 345 (Div. 1) {650} PROGRAMMING Codeforces Round #345: editorial 1900
11176 Hard Process binary search dp two pointers Statement C Educational Codeforces Round 11 {660} PROGRAMMING Editorial of Educational Codeforces Round 11 1600
23925 Vasya and String binary search dp strings two pointers Statement C Codeforces Round 354 (Div. 2) {676} PROGRAMMING Editorial 1500
3595 Epidemic in Monstropolis constructive algorithms dp greedy two pointers Statement C Codeforces Round 378 (Div. 2) {733} PROGRAMMING Codeforces Round #378 (Div. 2) editorial 1800
5751 Anton and Making Potions binary search dp greedy two pointers Statement C Codeforces Round 379 (Div. 2) {734} PROGRAMMING Tutorial of Codeforces Round #379 (Div. 2) 1600
6064 Dasha and Password brute force dp implementation Statement C Codeforces Round 394 (Div. 2) {761} PROGRAMMING Codeforces Round #394 (Div. 2) [Editorial] 1600
6927 Alyona and Spreadsheet binary search data structures dp greedy implementation two pointers Statement C Codeforces Round 401 (Div. 2) {777} PROGRAMMING Problem analysis of Codeforces Round #401 (Div. 2) 1600
10336 Functions again dp two pointers Statement A Codeforces Round 407 (Div. 1) {788} PROGRAMMING Codeforces Round #407(Div.1 + Div.2) Editorial 1500
8118 An impassioned circulation of affection brute force dp strings two pointers Statement C Codeforces Round 418 (Div. 2) {814} PROGRAMMING Codeforces Round #418 (Div. 2) Editorial 1600
7120 The Bakery binary search data structures divide and conquer dp two pointers Statement B Codeforces Round 426 (Div. 1) {833} PROGRAMMING Codeforces Round #426 Editorial 2200
27496 Lecture Sleep data structures dp implementation two pointers Statement B Educational Codeforces Round 41 (Rated for Div. 2) {961} PROGRAMMING Educational Codeforces Round 41 Editorial 1300
4324 Pencils and Boxes binary search data structures dp greedy two pointers Statement E Educational Codeforces Round 44 (Rated for Div. 2) {985} PROGRAMMING Educational Codeforces Round 44 Editorial 2000
573 Most Dangerous Shark data structures dp two pointers Statement G Codeforces Round 541 (Div. 2) {1131} PROGRAMMING Codeforces Round #541 Editorial 2900
6692 K Balanced Teams dp sortings two pointers Statement E Codeforces Round 544 (Div. 3) {1133} PROGRAMMING Codeforces Round #544 (Div. 3) Editorial 2000
2963 Maximum Balanced Circle constructive algorithms dp greedy two pointers Statement F Codeforces Round 555 (Div. 3) {1157} PROGRAMMING 66737 2300
947 Yet Another Partiton Problem data structures divide and conquer dp geometry two pointers Statement G Educational Codeforces Round 66 (Rated for Div. 2) {1175} PROGRAMMING Editorial 2700
1324 Crossword Expert combinatorics dp number theory probabilities two pointers Statement F Educational Codeforces Round 68 (Rated for Div. 2) {1194} PROGRAMMING Разбор Educational Codeforces Round 68 2500
10588 RGB Substring (hard version) data structures dp implementation two pointers Statement D2 Codeforces Round 575 (Div. 3) {1196} PROGRAMMING Editorial 1600
4484 White Lines brute force data structures dp implementation two pointers Statement D Codeforces Round 578 (Div. 2) {1200} PROGRAMMING Codeforces Round #578 (Div. 2) Editorial 1900
4576 Sequence Sorting dp greedy two pointers Statement D Technocup 2020 - Elimination Round 1 {1223} PROGRAMMING Сodeforces Round 591 (and Technocup 2020 — Elimination Round 1) Editorial 2000
817 Discarding Game dp greedy two pointers Statement G 2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1250} PROGRAMMING 2400
8363 Yet Another Monster Killing Problem binary search data structures dp greedy sortings two pointers Statement D Educational Codeforces Round 76 (Rated for Div. 2) {1257} PROGRAMMING Educational Codeforces Round 76 Editorial 1700
2431 Two Bracket Sequences dp strings two pointers Statement F Codeforces Round 605 (Div. 3) {1272} PROGRAMMING Codeforces Round #605 (Div. 3) Editorial 2400
2046 Delete a Segment brute force constructive algorithms data structures dp graphs sortings trees two pointers Statement E Codeforces Round 613 (Div. 2) {1285} PROGRAMMING Codeforces Round #613 (Div. 2) Editorial 2300
18113 Air Conditioner dp greedy implementation sortings two pointers Statement C Codeforces Round 620 (Div. 2) {1304} PROGRAMMING 1500.0 Codeforces Round #620 (Div. 2) Editorial 1500
2189 AND Segments bitmasks combinatorics data structures dp two pointers Statement F Educational Codeforces Round 84 (Rated for Div. 2) {1327} PROGRAMMING Educational Codeforces Round 84 Editorial 2500
11891 Three Blocks Palindrome (easy version) binary search brute force data structures dp two pointers Statement E1 Codeforces Round 634 (Div. 3) {1335} PROGRAMMING 75993 1700
9633 Three Blocks Palindrome (hard version) brute force data structures dp two pointers Statement E2 Codeforces Round 634 (Div. 3) {1335} PROGRAMMING 75993 2000
45638 Alternating Subsequence dp greedy two pointers Statement C Codeforces Round 636 (Div. 3) {1343} PROGRAMMING 76352 1100
36291 Ternary String binary search dp implementation two pointers Statement B Educational Codeforces Round 87 (Rated for Div. 2) {1354} PROGRAMMING 77593 1200
29670 New Theatre Square brute force dp greedy implementation two pointers Statement B Educational Codeforces Round 88 (Rated for Div. 2) {1359} PROGRAMMING Educational Codeforces Round 88 Editorial 1000
11037 Yet Another Yet Another Task data structures dp implementation two pointers Statement D Educational Codeforces Round 88 (Rated for Div. 2) {1359} PROGRAMMING Educational Codeforces Round 88 Editorial 2000
4702 Two Arrays binary search brute force combinatorics dp greedy implementation two pointers Statement E Educational Codeforces Round 89 (Rated for Div. 2) {1366} PROGRAMMING Educational Codeforces Round 89 Editorial
2033 Flying Sort (Hard Version) binary search dp greedy two pointers Statement F2 Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
3735 Flying Sort (Easy Version) dp greedy two pointers Statement F1 Codeforces Round 650 (Div. 3) {1367} PROGRAMMING Codeforces Round #650 (Div. 3) Editorial
1481 Omkar and Last Floor dp two pointers Statement E Codeforces Round 655 (Div. 2) {1372} PROGRAMMING 2500.0 Codeforces Round #655 Editorial 2900
9754 Unmerge combinatorics dp two pointers Statement B Codeforces Round 658 (Div. 1) {1381} PROGRAMMING 1500.0 Codeforces Round #658 Editorial 1800
840 The Majestic Brown Tree Snake dfs and similar dp greedy trees two pointers Statement D Codeforces Round 658 (Div. 1) {1381} PROGRAMMING 2500.0 Codeforces Round #658 Editorial 3000
20894 Good String brute force dp greedy implementation two pointers Statement C Educational Codeforces Round 92 (Rated for Div. 2) {1389} PROGRAMMING 80809
7178 Boboniu Chats with Du brute force dp greedy sortings two pointers Statement A Codeforces Round 664 (Div. 1) {1394} PROGRAMMING 500.0 Codeforces Round #664 Editorial 1800
1503 Controversial Rounds binary search data structures dp dsu two pointers Statement F Educational Codeforces Round 93 (Rated for Div. 2) {1398} PROGRAMMING Educational Codeforces Round 93 Editorial
11603 Zigzags brute force data structures dp math two pointers Statement D Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
8564 Two Platforms binary search dp sortings two pointers Statement E Codeforces Round 667 (Div. 3) {1409} PROGRAMMING Codeforces Round #667 (Div. 3) Editorial
6314 Perform Easily data structures dp implementation sortings two pointers Statement C Technocup 2021 - Elimination Round 1 {1413} PROGRAMMING 1500.0 Codeforces Round 679 (Div. 1, Div. 2) and Technocup Round 1 editorial
11804 Building a Fence dp greedy implementation two pointers Statement C Educational Codeforces Round 101 (Rated for Div. 2) {1469} PROGRAMMING Educational Codeforces Round 101 Editorial
996 Strange Permutation binary search combinatorics data structures dp two pointers Statement E Codeforces Round 694 (Div. 1) {1470} PROGRAMMING 2000.0 86464
31471 Strange Birthday Party dp greedy sortings two pointers Statement A Codeforces Round 694 (Div. 1) {1470} PROGRAMMING 500.0 86464
11409 Cleaning the Phone binary search dp greedy sortings two pointers Statement D Codeforces Round 697 (Div. 3) {1475} PROGRAMMING Codeforces Round #697 (Div. 3) Editorial
9363 Journey dfs and similar dp dsu implementation two pointers Statement D Educational Codeforces Round 103 (Rated for Div. 2) {1476} PROGRAMMING 87356
10557 Max Median binary search data structures dp two pointers Statement D Codeforces Round 703 (Div. 2) {1486} PROGRAMMING 1750.0 Codeforces Round #703 (Div. 2) Editorial
5218 Cheap Dinner data structures dp implementation sortings two pointers Statement E Educational Codeforces Round 104 (Rated for Div. 2) {1487} PROGRAMMING 87873
17758 Maximum width data structures dp greedy two pointers Statement C Codeforces Round 704 (Div. 2) {1492} PROGRAMMING 1500.0 Codeforces Round #704 Editorial
4951 Maximize the Remaining String brute force data structures dp greedy strings two pointers Statement G Codeforces Round 710 (Div. 3) {1506} PROGRAMMING Editorial
18087 Maximum Sum of Products brute force dp implementation math ternary search two pointers Statement D Educational Codeforces Round 108 (Rated for Div. 2) {1519} PROGRAMMING Educational Codeforces Round 108 Editorial
18094 Unstable String dp greedy implementation strings two pointers Statement C Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
16775 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
24785 Pair Programming dp greedy two pointers Statement C Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
1974 Stringforces binary search bitmasks data structures dp greedy strings two pointers Statement E Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
2207 Korney Korneevich and XOR (hard version) binary search brute force dp two pointers Statement F2 Codeforces Round 750 (Div. 2) {1582} PROGRAMMING 1500.0 Codeforces Round #750 (Div.2) Editorial
7474 Game Master data structures dfs and similar dp graphs greedy two pointers Statement C Codeforces Round 758 (Div.1 + Div. 2) {1608} PROGRAMMING 1000.0 Editorial of Codeforces Round #758 (Div.1 + Div. 2)
10596 Complex Market Analysis binary search dp implementation number theory schedules two pointers Statement C Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2) {1609} PROGRAMMING 1500.0 Deltix Round, Autumn 2021. Editorial 1400
4462 Escape The Maze (hard version) dfs and similar dp greedy shortest paths trees two pointers Statement E2 Codeforces Round 756 (Div. 3) {1611} PROGRAMMING Tutorial 2000
12061 Monsters And Spells data structures dp fft greedy implementation two pointers Statement C Educational Codeforces Round 121 (Rated for Div. 2) {1626} PROGRAMMING 99136
2924 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
5491 New Year Concert binary search data structures dp greedy math number theory two pointers Statement D Codeforces Round 769 (Div. 2) {1632} PROGRAMMING 2000.0 Editorial of Codeforces Round #769
5399 For Gamers. By Gamers. binary search dp math sortings two pointers Statement D Educational Codeforces Round 125 (Rated for Div. 2) {1657} PROGRAMMING 101161
1468 Typical Party in Dorm bitmasks brute force combinatorics dp strings two pointers Statement E Codeforces Round 791 (Div. 2) {1679} PROGRAMMING 2250.0 Codeforces Round #791 (Div. 2) Editorial
28608 2^Sort data structures dp sortings two pointers Statement G Codeforces Round 799 (Div. 4) {1692} PROGRAMMING Codeforces Round #799 (Div. 4) Editorial
221 Maximum Product? brute force combinatorics dp greedy math two pointers Statement H Codeforces Global Round 21 {1696} PROGRAMMING 4000.0 Editorial of Codeforces Global Round 21
16015 awoo's Favorite Problem constructive algorithms data structures dp greedy implementation strings two pointers Statement C Educational Codeforces Round 130 (Rated for Div. 2) {1697} PROGRAMMING 103835
1438 Three Days Grace dp math two pointers Statement E Codeforces Round 804 (Div. 2) {1699} PROGRAMMING 2500.0 Codeforces Round #804 (Div. 2) Editorial
1426 Text Editor brute force dp greedy strings two pointers Statement E Educational Codeforces Round 131 (Rated for Div. 2) {1701} PROGRAMMING Educational Codeforces Round 131 Editorial
1988 Chopping Carrots (Hard Version) constructive algorithms dp number theory two pointers Statement D2 Codeforces Round 809 (Div. 2) {1706} PROGRAMMING 1250.0 Codeforces Round #809 Editorial
6019 Burenka and Traditions (hard version) data structures dp greedy math two pointers Statement A2 Codeforces Round 814 (Div. 1) {1718} PROGRAMMING 500.0 Codeforces Round #814 (Div. 1, Div. 2) Editorial
2619 Cut Substrings combinatorics dp hashing strings two pointers Statement G Codeforces Round 820 (Div. 3) {1729} PROGRAMMING Codeforces Round #820 (Div. 3) Editorial
8725 Valiant's New Map binary search brute force data structures dp two pointers Statement D Codeforces Round 841 (Div. 2) and Divide by Zero 2022 {1731} PROGRAMMING 1500.0 Codeforces Round #841 (Div. 2) and Divide By Zero 2022 Editorial
7205 Slime Escape data structures dp greedy two pointers Statement D Codeforces Round 822 (Div. 2) {1734} PROGRAMMING 2000.0 Codeforces Round #822 (Div.2) Editorial
1880 Balance Addicts combinatorics dp math two pointers Statement E Codeforces Global Round 22 {1738} PROGRAMMING 2500.0 Editorial of Codeforces Global Round <strong>22</strong>
23259 Hossam and Friends binary search constructive algorithms dp two pointers Statement B Codeforces Round 837 (Div. 2) {1771} PROGRAMMING 1000.0 Codeforces Round #837 (Div. 2) Editorial
861 Hossam and a Letter brute force dp implementation two pointers Statement E Codeforces Round 837 (Div. 2) {1771} PROGRAMMING 2750.0 Codeforces Round #837 (Div. 2) Editorial
4829 Moving Dots binary search brute force combinatorics dp math two pointers Statement D Codeforces Round 851 (Div. 2) {1788} PROGRAMMING 2250.0 Codeforces Round #851 (Div. 2) Editorial
7279 Moscow Gorillas dp greedy implementation two pointers Statement D Codeforces Round 852 (Div. 2) {1793} PROGRAMMING 1750.0 Codeforces Round #852 Editorial
2235 Vlad and the Nice Paths (hard version) binary search combinatorics data structures dp math two pointers Statement G2 Codeforces Round 863 (Div. 3) {1811} PROGRAMMING 114788
4676 Range Sorting (Easy Version) binary search dp dsu greedy trees two pointers Statement B1 Codeforces Round 873 (Div. 1) {1827} PROGRAMMING 750.0 Codeforces Round #873 (Div. 1 & 2) Editorial 2000
3278 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
8121 Andrey and Escape from Capygrad binary search data structures dp dsu greedy sortings two pointers Statement D Codeforces Round 892 (Div. 2) {1859} PROGRAMMING 1750.0 Video solutions from Geothermal.
981 Imagination Castle dp games two pointers Statement I COMPFEST 15 - Preliminary Online Mirror (Unrated, ICPC Rules, Teams Preferred) {1866} PROGRAMMING COMPFEST 15 Preliminary — Editorial
13414 Colorful Table binary search data structures dp implementation math sortings two pointers Statement C CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) {1870} PROGRAMMING 1500.0 CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
1930 I Wanna be the Team Leader bitmasks dp two pointers Statement E Educational Codeforces Round 156 (Rated for Div. 2) {1886} PROGRAMMING Educational Codeforces Round 156 Editorial
31381 Collecting Game binary search dp greedy two pointers Statement B Codeforces Round 914 (Div. 2) {1904} PROGRAMMING 750.0 Codeforces Round 914 (Div. 2) Editorial
6580 Blocking Elements binary search data structures dp greedy implementation two pointers Statement D Codeforces Round 922 (Div. 2) {1918} PROGRAMMING 2000.0 Codeforces Round #922 (Div. 2) Editorial
36408 Find the Different Ones! binary search brute force data structures dp greedy two pointers Statement D Codeforces Round 923 (Div. 3) {1927} PROGRAMMING 125597
13032 Tandem Repeats? brute force dp strings two pointers Statement D Educational Codeforces Round 163 (Rated for Div. 2) {1948} PROGRAMMING Educational Codeforces Round 163 Editorial
12757 Job Interview binary search dp greedy implementation two pointers Statement C Educational Codeforces Round 166 (Rated for Div. 2) {1976} PROGRAMMING Educational Codeforces Round 166 Editorial
22505 Boring Day binary search data structures dp greedy two pointers Statement C Codeforces Round 955 (Div. 2, with prizes from NEAR!) {1982} PROGRAMMING 1000.0 130839
18380 Mathematical Problem brute force dp two pointers Statement D Codeforces Round 954 (Div. 3) {1986} PROGRAMMING 130762
7316 Smithing Skill brute force dp greedy math sortings two pointers Statement D Educational Codeforces Round 167 (Rated for Div. 2) {1989} PROGRAMMING Educational Codeforces Round 167 Editorial
7916 Valuable Cards dp greedy number theory two pointers Statement F Codeforces Round 957 (Div. 3) {1992} PROGRAMMING Shayan's Video Tutorial
14098 Hungry Games binary search data structures dp two pointers Statement C Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2) {1994} PROGRAMMING 1250.0 Video Tutorial
423 Let Me Teach You a Lesson (Hard Version) 2-sat bitmasks data structures dp graphs matrices two pointers Statement E2 Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 1500.0 Video Tutorial
544 Let Me Teach You a Lesson (Easy Version) 2-sat data structures dp two pointers Statement E1 Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 2500.0 Video Tutorial
668 Turtle and Inversions (Hard Version) brute force constructive algorithms data structures dp greedy two pointers Statement E2 Codeforces Round 968 (Div. 2) {2003} PROGRAMMING 1000.0 sol-zh.pdf
857 Turtle and Three Sequences data structures dp graphs greedy meet-in-the-middle probabilities two pointers Statement F Codeforces Round 968 (Div. 2) {2003} PROGRAMMING 2500.0 sol-zh.pdf
5375 Speedbreaker binary search dp greedy implementation math two pointers Statement B Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 750.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
1964 The Endspeaker (Hard Version) binary search combinatorics data structures dp greedy implementation two pointers Statement D2 Codeforces Round 982 (Div. 2) {2027} PROGRAMMING 1000.0 Codeforces Round #982 (Div. 2) Editorial
7233 The Endspeaker (Easy Version) binary search dp graphs greedy implementation two pointers Statement D1 Codeforces Round 982 (Div. 2) {2027} PROGRAMMING 1250.0 Codeforces Round #982 (Div. 2) Editorial
10411 Alice's Adventures in Cutting Cake binary search dp greedy two pointers Statement C Codeforces Round 986 (Div. 2) {2028} PROGRAMMING 1500.0 Codeforces Round 986 (Div. 2) Editorial
10265 Penchick and Desert Rabbit data structures dfs and similar dp dsu greedy two pointers Statement D Codeforces Round 987 (Div. 2) {2031} PROGRAMMING 2000.0 Codeforces Round 987 (Div. 2) Editorial
21420 Penchick and Modern Monument dp greedy math two pointers Statement A Codeforces Round 987 (Div. 2) {2031} PROGRAMMING 500.0 Codeforces Round 987 (Div. 2) Editorial
5977 Yet Another Real Number Problem binary search brute force data structures dp greedy implementation math two pointers Statement D Codeforces Global Round 27 {2035} PROGRAMMING 1500.0 Codeforces Global Round 27 Editorial
1367 Kevin and Math Class brute force data structures divide and conquer dp math trees two pointers Statement F Codeforces Global Round 28 {2048} PROGRAMMING 2000.0 Tutorial
111 Affectionate Arrays (Hard Version) data structures dp graphs greedy math shortest paths two pointers Statement I2 Good Bye 2024: 2025 is NEAR {2053} PROGRAMMING 2000.0 Good Bye 2024: 2025 is NEAR Editorial
2335 Kevin and Binary String (Easy Version) binary search brute force data structures dp greedy implementation strings two pointers Statement F1 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} PROGRAMMING 2000.0 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial
5227 Game With Triangles binary search data structures dp greedy math ternary search two pointers Statement D Codeforces Round 1000 (Div. 2) {2063} PROGRAMMING 2250.0 Codeforces Round 1000 (Div. 2) — Editorial
12821 Flower Boy binary search dp greedy two pointers Statement D Codeforces Round 1020 (Div. 3) {2106} PROGRAMMING Codeforces Round 1020 (Div. 3) Editorial
1466 Sets of Complementary Sums combinatorics dp math two pointers Statement E Educational Codeforces Round 181 (Rated for Div. 2) {2125} PROGRAMMING Educational Codeforces Round 181 Editorial
6938 Inversion Graph Coloring (Easy Version) binary search data structures dp two pointers Statement D1 Codeforces Round 1051 (Div. 2) {2143} PROGRAMMING 1750.0 Codeforces Round 1051 (Div. 2) Editorial
3069 Inversion Graph Coloring (Hard Version) binary search data structures dp two pointers Statement D2 Codeforces Round 1051 (Div. 2) {2143} PROGRAMMING 1000.0 Codeforces Round 1051 (Div. 2) Editorial
2402 Inverse Minimum Partition (Easy Version) binary search data structures dp greedy math two pointers Statement D1 Codeforces Round 1058 (Div. 1) {2159} PROGRAMMING 1500.0 Codeforces Round 1058 Editorial
2952 Locked Out binary search data structures dp graphs greedy implementation two pointers Statement D Pinely Round 5 (Div. 1 + Div. 2) {2161} PROGRAMMING 2250.0
9795 Monopati dp math two pointers Statement C Codeforces Round 1063 (Div. 2) {2163} PROGRAMMING 1250.0 Codeforces Round 1063 Editorial
11806 Sub-RBS (Easy Version) combinatorics constructive algorithms dp greedy strings two pointers Statement B1 Codeforces Round 1073 (Div. 1) {2190} PROGRAMMING 750.0 Codeforces Round 1073 (Div. 1, Div. 2) Editorial
4026 Zhily and Barknights binary search data structures dp math sortings two pointers Statement B Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026) {2223} PROGRAMMING 750.0 Codeforces Round 1097 (Div. 1, Div2, Based on Zhili Cup 2026) Tutorial
5599 Good Schedule dp graphs greedy two pointers Statement D Educational Codeforces Round 190 (Rated for Div. 2) {2230} PROGRAMMING Educational Codeforces Round 190 — Editorial
12544 Seating Arrangement (Easy Version) binary search dp greedy ternary search two pointers Statement C1 Codeforces Round 1101 (Div. 2) {2232} PROGRAMMING 750.0 Codeforces Round 1101 (Div. 2) — Editorial
2248 Cake Trial dp greedy two pointers Statement E Codeforces Round 1106 (Div. 2) {2238} PROGRAMMING 2250.0 Codeforces Round 1106 (Div. 2) Editorial