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5390 Hometask brute force constructive algorithms greedy math Statement B Codeforces Round 131 (Div. 2) {214} PROGRAMMING Codeforces Round #131 Tutorial 1600
2848 Beauty Pageant brute force constructive algorithms greedy Statement C Codeforces Round 151 (Div. 2) {246} PROGRAMMING Codeforces Round #151 (Div. 2) Tutorial 1600
723 Broken Monitor brute force constructive algorithms greedy implementation Statement D Codeforces Round 217 (Div. 2) {370} PROGRAMMING Codeforces Round #217 (Div. 2): tutorial 2100
857 Kamal-ol-molk's Painting brute force constructive algorithms greedy Statement C Bayan 2015 Contest Warm Up {475} PROGRAMMING Bayan 2015 Contest Warm Up Editorial 2100
8509 Towers brute force constructive algorithms greedy implementation sortings Statement B Codeforces Round 274 (Div. 2) {479} PROGRAMMING Codeforces Round #274: editorial 1400
18852 Holidays brute force constructive algorithms greedy math Statement A Codeforces Round 350 (Div. 2) {670} PROGRAMMING Codeforces Round #350 (Div.2) Editorial 1000
4229 Dasha and Very Difficult Problem binary search brute force constructive algorithms greedy sortings Statement D Codeforces Round 394 (Div. 2) {761} PROGRAMMING Codeforces Round #394 (Div. 2) [Editorial] 1700
6724 Relatively Prime Graph brute force constructive algorithms graphs greedy math Statement D Educational Codeforces Round 47 (Rated for Div. 2) {1009} PROGRAMMING 60630 1700
11044 New Year and the Treasure Geolocation brute force constructive algorithms greedy implementation Statement B Good Bye 2018 {1091} PROGRAMMING Editorial 1200
1823 Nice table brute force constructive algorithms greedy math Statement B Codeforces Round 530 (Div. 1) {1098} PROGRAMMING 64331 2300
4586 Archaeology brute force constructive algorithms greedy strings Statement E Codeforces Global Round 4 {1178} PROGRAMMING E 1900
2819 The Feast and the Bus brute force constructive algorithms greedy math Statement B 2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred) {1250} PROGRAMMING 1900
6073 Beautiful Sequence brute force constructive algorithms greedy Statement B Codeforces Round 604 (Div. 1) {1264} PROGRAMMING 71995 1900
1799 Beautiful Rectangle brute force combinatorics constructive algorithms data structures greedy math Statement C Codeforces Round 606 (Div. 1, based on Technocup 2020 Elimination Round 4) {1276} PROGRAMMING Technocup 2020 — Elimination Round 4 + Codeforces Round 606: Editorial 2300
6818 Aroma's Search brute force constructive algorithms geometry greedy implementation Statement B Codeforces Round 614 (Div. 1) {1292} PROGRAMMING 750.0 Codeforces Round #614 Editorial 1800
18930 Longest Palindrome brute force constructive algorithms greedy implementation strings Statement B Codeforces Round 620 (Div. 2) {1304} PROGRAMMING 1000.0 Codeforces Round #620 (Div. 2) Editorial 1100
14742 Kuroni and the Gifts brute force constructive algorithms greedy sortings Statement A Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!) {1305} PROGRAMMING 500.0 Ozon Tech Challenge 2020 Editorial 800
19328 Composite Coloring brute force constructive algorithms greedy math number theory Statement B Codeforces Round 630 (Div. 2) {1332} PROGRAMMING 1000.0 Codeforces Round #630 Editorial 1500
4174 Challenges in school №41 brute force constructive algorithms games graphs greedy implementation sortings Statement D Codeforces Round 632 (Div. 2) {1333} PROGRAMMING 1750.0 Codeforces Round #632 (Div. 2) editorial
18153 Circle of Monsters brute force constructive algorithms greedy math Statement C Educational Codeforces Round 85 (Rated for Div. 2) {1334} PROGRAMMING Educational Codeforces Round 85 Editorial
3493 Perfect Triples bitmasks brute force constructive algorithms divide and conquer greedy implementation math Statement C Codeforces Round 633 (Div. 1) {1338} PROGRAMMING 1500.0 Editorial
1427 Restore the Permutation by Sorted Segments brute force constructive algorithms data structures greedy implementation Statement F Codeforces Round 636 (Div. 3) {1343} PROGRAMMING 76352 2800
14526 Ehab and Prefix MEXs brute force constructive algorithms greedy Statement C Codeforces Round 649 (Div. 2) {1364} PROGRAMMING 1500.0 Codeforces round #649 editorial 1600
21748 Codeforces Subsequences brute force constructive algorithms greedy math strings Statement B Codeforces Global Round 8 {1368} PROGRAMMING 1000.0 Codeforces Global Round 8: editorial
5926 Omkar and Circle brute force constructive algorithms dp games greedy Statement D Codeforces Round 655 (Div. 2) {1372} PROGRAMMING 2000.0 Codeforces Round #655 Editorial 2100
2993 Sum of Digits brute force constructive algorithms dp greedy math number theory Statement E Educational Codeforces Round 90 (Rated for Div. 2) {1373} PROGRAMMING Educational Codeforces Round 90 Editorial
847 Rearrange brute force constructive algorithms graphs greedy sortings Statement D Codeforces Round 659 (Div. 1) {1383} PROGRAMMING 1750.0 Codeforces Round #659 Editorial
13236 Stoned Game brute force constructive algorithms games greedy Statement B Codeforces Round 666 (Div. 1) {1396} PROGRAMMING 1000.0 Codeforces Round #666 — Editorial
17096 Stairs brute force constructive algorithms greedy implementation math two pointers Statement B Codeforces Round 671 (Div. 2) {1419} PROGRAMMING 750.0 Codeforces Round #671 Editorial
8200 Rock, Paper, Scissors brute force constructive algorithms flows greedy math Statement E Codeforces Round 674 (Div. 3) {1426} PROGRAMMING 83120 1800
18510 Marketing Scheme brute force constructive algorithms greedy math Statement A Educational Codeforces Round 97 (Rated for Div. 2) {1437} PROGRAMMING 84149
4472 Checkpoints brute force constructive algorithms greedy math probabilities Statement D Codeforces Round 688 (Div. 2) {1453} PROGRAMMING 2000.0 Codeforces Round #688 (Div. 2) Editorial
1681 Four Points brute force constructive algorithms flows geometry greedy math ternary search Statement E Educational Codeforces Round 99 (Rated for Div. 2) {1455} PROGRAMMING 85186
6845 Three Bags brute force constructive algorithms greedy Statement C Codeforces Round 695 (Div. 2) {1467} PROGRAMMING 1500.0 Codeforces Round #695 (Div. 2) Editorial 1900
12499 Fence Painting brute force constructive algorithms greedy implementation Statement C Codeforces Round 699 (Div. 2) {1481} PROGRAMMING 1500.0 Codeforces Round #699 (Div. 2) Editorial
15570 Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math Statement C Educational Codeforces Round 104 (Rated for Div. 2) {1487} PROGRAMMING 87873
1323 Almost Fault-Tolerant Database brute force constructive algorithms dfs and similar greedy implementation Statement E Codeforces Round 704 (Div. 2) {1492} PROGRAMMING 3000.0 Codeforces Round #704 Editorial
2861 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
22404 Split it! brute force constructive algorithms greedy strings Statement A Codeforces Round 706 (Div. 2) {1496} PROGRAMMING 500.0 Codeforces Round #706 Editorial
12564 Min Cost String brute force constructive algorithms dfs and similar graphs greedy Statement D Educational Codeforces Round 107 (Rated for Div. 2) {1511} PROGRAMMING 89634
16498 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
3212 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
6828 Nearest Beautiful Number (easy version) binary search bitmasks brute force constructive algorithms dfs and similar greedy Statement F1 Codeforces Round 739 (Div. 3) {1560} PROGRAMMING 94009 1900
5089 Nearest Beautiful Number (hard version) bitmasks brute force constructive algorithms dfs and similar dp greedy Statement F2 Codeforces Round 739 (Div. 3) {1560} PROGRAMMING 94009 2100
2073 Xor of 3 brute force constructive algorithms greedy Statement B Codeforces Round 743 (Div. 1) {1572} PROGRAMMING 1250.0 Tutorial 2500
24717 Divan and a Store brute force constructive algorithms greedy Statement A Codeforces Round 757 (Div. 2) {1614} PROGRAMMING 500.0 Tutorial 800
4877 Exact Change binary search brute force constructive algorithms greedy Statement D Educational Codeforces Round 119 (Rated for Div. 2) {1620} PROGRAMMING 98061
17195 Meximum Array brute force constructive algorithms greedy math Statement A Codeforces Round 767 (Div. 1) {1628} PROGRAMMING 500.0 99276
22882 Quality vs Quantity brute force constructive algorithms greedy sortings two pointers Statement B Codeforces Round 774 (Div. 2) {1646} PROGRAMMING 1000.0 Codeforces Round #774 (Div. 2) Editorial 800
8530 Insert a Progression brute force constructive algorithms greedy Statement D Educational Codeforces Round 127 (Rated for Div. 2) {1671} PROGRAMMING 102181
7828 Breaking the Wall binary search brute force constructive algorithms greedy math Statement E Codeforces Round 786 (Div. 3) {1674} PROGRAMMING 102482
3696 MEX vs DIFF brute force constructive algorithms data structures greedy two pointers Statement E Codeforces Round 792 (Div. 1 + Div. 2) {1684} PROGRAMMING 1750.0 Codeforces Round #792 (Div. 1 + Div. 2) Editorial 2100
17393 Sum of Substrings brute force constructive algorithms greedy math strings Statement C CodeCraft-22 and Codeforces Round 795 (Div. 2) {1691} PROGRAMMING 1250.0 Editorial for CodeCraft-22 and Codeforces Round #795 (Div. 2)
1874 PermutationForces II binary search brute force combinatorics constructive algorithms greedy sortings Statement E Codeforces Round 803 (Div. 2) {1698} PROGRAMMING 2000.0 Codeforces Round #803 (Div. 2) Editorial
7801 Chopping Carrots (Easy Version) binary search brute force constructive algorithms dp greedy number theory Statement D1 Codeforces Round 809 (Div. 2) {1706} PROGRAMMING 1000.0 Codeforces Round #809 Editorial
3740 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
10827 SlavicG's Favorite Problem bitmasks brute force constructive algorithms data structures dfs and similar graphs greedy Statement G Codeforces Round 835 (Div. 4) {1760} PROGRAMMING 109348
7957 Another Array Problem brute force constructive algorithms greedy Statement C Codeforces Round 840 (Div. 2) and Enigma 2022 - Cybros LNMIIT {1763} PROGRAMMING 1500.0 Codeforces Round #840 (Div. 2) and Enigma 2022 — Cybros LNMIIT Editorial
9081 Li Hua and Chess brute force constructive algorithms greedy hashing interactive Statement C Codeforces Round 864 (Div. 2) {1797} PROGRAMMING 1500.0 Codeforces Round 864 (Div. 2) Editorial
12953 Equalize by Divide brute force constructive algorithms greedy math Statement B Codeforces Round 854 by cybercats (Div. 1 + Div. 2) {1799} PROGRAMMING 1000.0 Codeforces Round #854 Editorial
15605 Unforgivable Curse (hard version) brute force constructive algorithms constructive algorithms dsu graphs greedy Statement E2 Codeforces Round 855 (Div. 3) {1800} PROGRAMMING Codeforces Round 855 (Div. 3) Editorial
15965 Unforgivable Curse (easy version) brute force constructive algorithms dsu graphs greedy Statement E1 Codeforces Round 855 (Div. 3) {1800} PROGRAMMING Codeforces Round 855 (Div. 3) Editorial
4830 Tenzing and His Animal Friends brute force constructive algorithms graphs greedy shortest paths Statement D CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!) {1842} PROGRAMMING 1500.0 CodeTON Round 5 Editorial
10511 Array Painting brute force constructive algorithms dp greedy Statement D Educational Codeforces Round 152 (Rated for Div. 2) {1849} PROGRAMMING 118752
3263 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
7738 Matrix Cascade brute force constructive algorithms dp greedy Statement D Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2) {1864} PROGRAMMING 1500.0 Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2) Editorial
578 Most Different Tree brute force constructive algorithms dfs and similar greedy hashing Statement F Codeforces Round 897 (Div. 2) {1867} PROGRAMMING 4000.0
17581 Sets and Union bitmasks brute force constructive algorithms greedy Statement B Codeforces Round 899 (Div. 2) {1882} PROGRAMMING 1000.0 Codeforces Round 899 (Div. 2) Editorial
1257 Two Permutations (Easy Version) brute force constructive algorithms greedy number theory Statement E1 Codeforces Round 899 (Div. 2) {1882} PROGRAMMING 2000.0 Codeforces Round 899 (Div. 2) Editorial
19310 Simple Design brute force constructive algorithms greedy math Statement A Codeforces Round 904 (Div. 2) {1884} PROGRAMMING 500.0 Codeforces Round #904 (Div. 2) Editorial
17527 Insert and Equalize brute force constructive algorithms greedy math number theory Statement C Educational Codeforces Round 159 (Rated for Div. 2) {1902} PROGRAMMING Educational Codeforces Round 159 Editorial
15061 StORage room bitmasks brute force constructive algorithms greedy Statement B Codeforces Round 912 (Div. 2) {1903} PROGRAMMING 1000.0 Codeforces Round #912 (Div. 2) Editorial
8817 Set To Max (Easy Version) brute force constructive algorithms greedy Statement D1 Codeforces Round 914 (Div. 2) {1904} PROGRAMMING 1250.0 Codeforces Round 914 (Div. 2) Editorial
5686 Birthday Gift bitmasks brute force constructive algorithms greedy implementation Statement D Codeforces Round 936 (Div. 2) {1946} PROGRAMMING 1750.0 Codeforces Round #936 (Div. 2) Editorial
4607 No Palindromes brute force constructive algorithms greedy hashing implementation strings Statement E Codeforces Global Round 25 {1951} PROGRAMMING 2250.0 Codeforces Global Round 25 Editorial
4867 Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation Statement D Codeforces Round 939 (Div. 2) {1956} PROGRAMMING 1750.0 [Editorial] Codeforces Round 939 (Div. 2)
7962 Fixing a Binary String bitmasks brute force constructive algorithms greedy hashing strings Statement D Codeforces Round 951 (Div. 2) {1979} PROGRAMMING 2000.0 Codeforces Round 951 (Div. 2) Editorial
50110 Only Pluses brute force constructive algorithms greedy math sortings Statement A Codeforces Round 957 (Div. 3) {1992} PROGRAMMING Shayan's Video Tutorial
10456 Squaring brute force constructive algorithms data structures greedy implementation math number theory Statement C Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 1750.0 Video Tutorial
6604 Longest Max Min Subsequence brute force constructive algorithms greedy two pointers Statement D Codeforces Round 967 (Div. 2) {2001} PROGRAMMING 2000.0 Video Tutorial
17989 Black Circles brute force constructive algorithms geometry greedy math Statement C EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2) {2002} PROGRAMMING 1000.0 EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2) Editorial
654 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
42364 Sakurako's Exam brute force constructive algorithms greedy math Statement A Codeforces Round 970 (Div. 3) {2008} PROGRAMMING Codeforces Round 970 (Div. 3) Editorial
1402 C+K+S brute force constructive algorithms dfs and similar graphs greedy hashing math strings Statement C Codeforces Round 980 (Div. 1) {2023} PROGRAMMING 1500.0 135341
3601 Common Generator brute force constructive algorithms greedy math number theory Statement E Refact.ai Match 1 (Codeforces Round 985) {2029} PROGRAMMING 2500.0 Refact.ai Match 1 (Codeforces Round 985) Editorial
2054 Permutations Harmony brute force combinatorics constructive algorithms greedy hashing implementation math Statement E Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2) {2034} PROGRAMMING 2000.0 Rayan 2024 Selection Round Editorial
5945 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
12850 Customer Service brute force constructive algorithms graph matchings greedy math sortings Statement C Codeforces Round 1002 (Div. 2) {2059} PROGRAMMING 1500.0 139094
907 Stop Gaming (Easy Version) brute force constructive algorithms greedy hashing Statement E1 Codeforces Round 1002 (Div. 2) {2059} PROGRAMMING 1500.0 139094
19143 Cost of the Array brute force constructive algorithms greedy math Statement B Codeforces Round 1002 (Div. 2) {2059} PROGRAMMING 1000.0 139094
14965 Kevin and Geometry brute force constructive algorithms data structures geometry greedy implementation math two pointers Statement B IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) {2061} PROGRAMMING 1000.0 IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2) Editorial
18154 Remove the Ends brute force constructive algorithms dp greedy Statement C Codeforces Round 1005 (Div. 2) {2064} PROGRAMMING 1250.0 Codeforces Round 1005 (Div. 2) Editorial
21302 Perfecto brute force constructive algorithms greedy math probabilities Statement B Codeforces Round 1007 (Div. 2) {2071} PROGRAMMING 1000.0 Codeforces Round 1007 (Div. 2) Editorial
9136 Arcology On Permafrost binary search brute force constructive algorithms greedy math Statement D Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2) {2084} PROGRAMMING 1750.0 141155
1606 Gleb and Boating brute force constructive algorithms data structures dp graphs greedy math shortest paths Statement G Codeforces Round 1013 (Div. 3) {2091} PROGRAMMING Codeforces Round 1013 (Div. 3) Editorial
7005 Mishkin Energizer brute force constructive algorithms greedy implementation strings Statement D Codeforces Round 1014 (Div. 2) {2092} PROGRAMMING 1750.0 Codeforces Round #1014 (Div. 2) Editorial
439 Andryusha and CCB brute force constructive algorithms greedy math number theory strings Statement F Codeforces Round 1014 (Div. 2) {2092} PROGRAMMING 3000.0 Codeforces Round #1014 (Div. 2) Editorial
1455 Puzzle brute force constructive algorithms greedy math Statement F Educational Codeforces Round 179 (Rated for Div. 2) {2111} PROGRAMMING Educational Codeforces Round 179 Editorial
8242 Smilo and Minecraft brute force constructive algorithms dp greedy Statement C Codeforces Round 1031 (Div. 2) {2113} PROGRAMMING 1250.0 Codeforces Round #1031 Editorial
16699 Gellyfish and Flaming Peony brute force constructive algorithms dp greedy math number theory shortest paths Statement A Codeforces Round 1028 (Div. 1) {2115} PROGRAMMING 500.0 Codeforces Round 1028 (Div.1, Div.2) Editorial
910 Sea, You & copriMe brute force combinatorics constructive algorithms graphs greedy math number theory Statement H Codeforces Round 1042 (Div. 3) {2131} PROGRAMMING Codeforces Round 1042 (Div. 3) Editorial
2195 Yet Another MEX Problem brute force constructive algorithms data structures greedy Statement E Codeforces Round 1052 (Div. 2) {2146} PROGRAMMING 2500.0 Codeforces Round 1052 (Div. 2) Editorial
27544 Pizza Time brute force constructive algorithms greedy Statement A Codeforces Round 1061 (Div. 2) {2156} PROGRAMMING 500.0 Codeforces Round 1061 (Div. 2) Editorial
706 Isaac's Queries brute force constructive algorithms dfs and similar divide and conquer greedy interactive math probabilities Statement G Codeforces Round 1066 (Div. 1 + Div. 2) {2157} PROGRAMMING 3000.0 Codeforces Round 1066 (Div. 1 + Div. 2) Editorial
16092 Cyclic Merging brute force constructive algorithms graphs greedy trees Statement A Codeforces Round 1064 (Div. 1) {2165} PROGRAMMING 500.0 148452
160 Elevator Against Humanity brute force constructive algorithms greedy sortings Statement E 2025-2026 ICPC, NERC, Northern Eurasia Finals (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {2181} PROGRAMMING Tutorial
14036 Palindromex binary search brute force constructive algorithms data structures greedy implementation two pointers Statement D Codeforces Round 1096 (Div. 3) {2227} PROGRAMMING Codeforces Round 1096 (Div. 3) — Editorial
1401 Product of Closures bitmasks brute force constructive algorithms dp greedy implementation math Statement E Educational Codeforces Round 192 (Rated for Div. 2) {2242} PROGRAMMING 155047