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2174 Beaver data structures dp greedy hashing strings two pointers Statement C Codeforces Beta Round 71 {79} PROGRAMMING Codeforces Beta Round #71 Editorial 1800
252 Cubes data structures dp geometry two pointers Statement D Codeforces Round 150 (Div. 1) {243} PROGRAMMING Editorial for Codeforces Round #150 2700
43487 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
6963 A and B and Interesting Substrings data structures dp two pointers Statement D Codeforces Round 294 (Div. 2) {519} PROGRAMMING Editorial 1900
16010 Modulo Sum combinatorics data structures dp two pointers Statement B Codeforces Round 319 (Div. 2) {577} PROGRAMMING Editorial Codeforces Round #319 1800
6925 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
7117 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
27471 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
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
10587 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
8362 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
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
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
9632 Three Blocks Palindrome (hard version) brute force data structures dp two pointers Statement E2 Codeforces Round 634 (Div. 3) {1335} PROGRAMMING 75993 2000
11034 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
1502 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
11601 Zigzags brute force data structures dp math two pointers Statement D Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
6313 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
996 Strange Permutation binary search combinatorics data structures dp two pointers Statement E Codeforces Round 694 (Div. 1) {1470} PROGRAMMING 2000.0 86464
10550 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
17757 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
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
7472 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)
12060 Monsters And Spells data structures dp fft greedy implementation two pointers Statement C Educational Codeforces Round 121 (Rated for Div. 2) {1626} PROGRAMMING 99136
2922 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
28601 2^Sort data structures dp sortings two pointers Statement G Codeforces Round 799 (Div. 4) {1692} PROGRAMMING Codeforces Round #799 (Div. 4) Editorial
16011 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
6018 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
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
7203 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
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
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.
13412 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
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
36393 Find the Different Ones! binary search brute force data structures dp greedy two pointers Statement D Codeforces Round 923 (Div. 3) {1927} PROGRAMMING 125597
22497 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
14096 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
666 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
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
10262 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
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
1366 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
6935 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
3068 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
2951 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
4019 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