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22543 Interesting Sum data structures greedy math Statement B Codeforces Round 815 (Div. 2) {1720} PROGRAMMING 1000.0 Codeforces Round #815 (Div. 2) Editorial
7817 Maximum AND bitmasks brute force divide and conquer greedy math sortings Statement D Educational Codeforces Round 134 (Rated for Div. 2) {1721} PROGRAMMING 106416
39657 Mainak and Array greedy math Statement A Codeforces Round 819 (Div. 1 + Div. 2) and Grimoire of Code Annual Contest 2022 {1726} PROGRAMMING 500.0 Codeforces Round #819 (Div. 1 + Div. 2) and Grimoire of Code Annual Contest 2022 Editorial
2082 Red-Black Pepper binary search brute force greedy math number theory sortings ternary search Statement E Educational Codeforces Round 135 (Rated for Div. 2) {1728} PROGRAMMING 106805
25528 Colored Balls: Revisited greedy implementation sortings Statement A Educational Codeforces Round 135 (Rated for Div. 2) {1728} PROGRAMMING 106805
18077 Minimum Notation data structures greedy math sortings Statement C Codeforces Round 823 (Div. 2) {1730} PROGRAMMING 1500.0 Codeforces Round #823 — editorial 1200
18167 Meeting on the Line binary search greedy implementation math ternary search Statement B Codeforces Round 823 (Div. 2) {1730} PROGRAMMING 1000.0 Codeforces Round #823 — editorial 1600
3572 Graph Cost dp greedy math number theory Statement E Codeforces Round 841 (Div. 2) and Divide by Zero 2022 {1731} PROGRAMMING 2000.0 Codeforces Round #841 (Div. 2) and Divide By Zero 2022 Editorial
23756 Joey Takes Money greedy math Statement A Codeforces Round 841 (Div. 2) and Divide by Zero 2022 {1731} PROGRAMMING 500.0 Codeforces Round #841 (Div. 2) and Divide By Zero 2022 Editorial
28588 Kill Demodogs greedy math Statement B Codeforces Round 841 (Div. 2) and Divide by Zero 2022 {1731} PROGRAMMING 1000.0 Codeforces Round #841 (Div. 2) and Divide By Zero 2022 Editorial
15186 Zero-One (Easy Version) dp greedy math Statement D1 Codeforces Round 821 (Div. 2) {1733} PROGRAMMING 1500.0 Codeforces Round #821 (Div. 2) Editorial
30700 Removing Smallest Multiples greedy math Statement C Codeforces Round 822 (Div. 2) {1734} PROGRAMMING 1250.0 Codeforces Round #822 (Div.2) Editorial
22518 Select Three Sticks greedy math sortings Statement A Codeforces Round 822 (Div. 2) {1734} PROGRAMMING 500.0 Codeforces Round #822 (Div.2) Editorial
21138 Working Week constructive algorithms greedy math Statement A Codeforces Round 824 (Div. 2) {1735} PROGRAMMING 500.0 Codeforces Round #824 — editorial
19575 Tea with Tangerines greedy math Statement B Codeforces Round 824 (Div. 2) {1735} PROGRAMMING 750.0 Codeforces Round #824 — editorial
13033 Even Number Addicts dp games greedy math Statement C Codeforces Global Round 22 {1738} PROGRAMMING 1500.0 Editorial of Codeforces Global Round <strong>22</strong>
24672 Array Recovery constructive algorithms greedy math Statement B Educational Codeforces Round 136 (Rated for Div. 2) {1739} PROGRAMMING Educational Codeforces Round 136 Editorial
9172 Knowledge Cards constructive algorithms data structures greedy math Statement D Codeforces Round 831 (Div. 1 + Div. 2) {1740} PROGRAMMING 1750.0 Tutorial 1500
19594 Minimize the Thickness brute force greedy math two pointers Statement C Codeforces Round 826 (Div. 3) {1741} PROGRAMMING 107908
41550 Scuza binary search greedy math Statement E Codeforces Round 827 (Div. 4) {1742} PROGRAMMING 107962
13725 Orray bitmasks brute force greedy math Statement G Codeforces Round 827 (Div. 4) {1742} PROGRAMMING 107962
24850 Divisibility by 2^n greedy math sortings Statement D Codeforces Round 828 (Div. 3) {1744} PROGRAMMING Codeforces Round #828 (Div. 3) Editorial
14194 Permutation Operations constructive algorithms greedy implementation math Statement C Codeforces Global Round 23 {1746} PROGRAMMING 1000.0 Codeforces Global Round 23 Editorial
1709 Bracket Cost binary search data structures divide and conquer dp greedy strings Statement E CodeTON Round 3 (Div. 1 + Div. 2, Rated, Prizes!) {1750} PROGRAMMING 2250.0 CodeTON Round 3 (Div. 1 + Div. 2) Editorial
15269 Factorial Divisibility greedy math Statement B Codeforces Round 829 (Div. 1) {1753} PROGRAMMING 750.0 Tutorial 1600
5671 Restore the Permutation binary search data structures greedy math Statement G Codeforces Round 834 (Div. 3) {1759} PROGRAMMING 109254
4573 All Possible Digits binary search data structures greedy math number theory Statement F Codeforces Round 834 (Div. 3) {1759} PROGRAMMING 109254
19626 Thermostat greedy math shortest paths Statement C Codeforces Round 834 (Div. 3) {1759} PROGRAMMING 109254
23267 Binary Inversions data structures greedy math Statement E Codeforces Round 835 (Div. 4) {1760} PROGRAMMING 109348
20749 Divide and Conquer greedy math number theory Statement A Codeforces Round 838 (Div. 2) {1762} PROGRAMMING 500.0 Codeforces Round #838 (Div. 2) Editorial
17132 Absolute Maximization bitmasks constructive algorithms greedy math Statement A Codeforces Round 840 (Div. 2) and Enigma 2022 - Cybros LNMIIT {1763} PROGRAMMING 500.0 Codeforces Round #840 (Div. 2) and Enigma 2022 — Cybros LNMIIT Editorial
10550 Doremy's City Construction constructive algorithms greedy math Statement C Codeforces Global Round 24 {1764} PROGRAMMING 1500.0 Codeforces Global Round 24 Editorial
6881 Torus Path dp greedy math Statement K 2022-2023 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Preferably Teams) {1765} PROGRAMMING 109642 1500
10989 Lucky Chains brute force dp greedy math number theory Statement D Educational Codeforces Round 139 (Rated for Div. 2) {1766} PROGRAMMING 110066
25926 Quick Sort greedy math Statement B Codeforces Round 842 (Div. 2) {1768} PROGRAMMING 1000.0 Codeforces Round #842 (Div. 2) Editorial
31243 Greatest Convex greedy math number theory Statement A Codeforces Round 842 (Div. 2) {1768} PROGRAMMING 500.0 Codeforces Round #842 (Div. 2) Editorial
1647 Gaining Rating binary search greedy math sortings Statement G Codeforces Round 839 (Div. 3) {1772} PROGRAMMING 110313
26491 Different Differences greedy math Statement C Codeforces Round 839 (Div. 3) {1772} PROGRAMMING 110313
925 Laboratory on Pluto brute force combinatorics dp fft greedy math Statement F Codeforces Round 843 (Div. 2) {1775} PROGRAMMING 3000.0 Codeforces Round #843 (Div. 2) Editorial
48104 Everybody Likes Good Arrays! greedy math Statement A Codeforces Round 845 (Div. 2) and ByteRace 2023 {1777} PROGRAMMING 500.0 Codeforces Round #845 (Div. 2) and ByteRace 2023 Editorial
19432 Emordnilap greedy math Statement B Codeforces Round 845 (Div. 2) and ByteRace 2023 {1777} PROGRAMMING 1000.0 Codeforces Round #845 (Div. 2) and ByteRace 2023 Editorial
14631 The Forbidden Permutation greedy math Statement B Codeforces Round 848 (Div. 2) {1778} PROGRAMMING 1000.0 Codeforces Round #848 (Div. 2) Editorial
24150 Hall of Fame constructive algorithms greedy math strings Statement A Hello 2023 {1779} PROGRAMMING 500.0
27638 GCD Partition brute force greedy math number theory Statement B Codeforces Round 846 (Div. 2) {1780} PROGRAMMING 1000.0 111841
2794 The Harmonization of XOR bitmasks constructive algorithms greedy math Statement E TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) {1787} PROGRAMMING 2250.0 TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
8479 Remove the Bracket dp greedy math Statement C TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) {1787} PROGRAMMING 1750.0 TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
15197 Number Factorization greedy math number theory Statement B TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) {1787} PROGRAMMING 1000.0 TypeDB Forces 2023 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
22663 Sum of Two Numbers constructive algorithms greedy implementation math Statement B Codeforces Round 851 (Div. 2) {1788} PROGRAMMING 1000.0 Codeforces Round #851 (Div. 2) Editorial
19683 Matching Numbers constructive algorithms greedy math Statement C Codeforces Round 851 (Div. 2) {1788} PROGRAMMING 1500.0 Codeforces Round #851 (Div. 2) Editorial
4191 Timofey and Black-White Tree brute force dfs and similar divide and conquer graphs greedy math shortest paths trees Statement F Codeforces Round 847 (Div. 3) {1790} PROGRAMMING 111948
29204 Taisia and Dice greedy greedy math Statement B Codeforces Round 847 (Div. 3) {1790} PROGRAMMING 111948
17148 Min Max Sort binary search brute force greedy math Statement C Educational Codeforces Round 142 (Rated for Div. 2) {1792} PROGRAMMING 111835
24556 Stand-up Comedian greedy math Statement B Educational Codeforces Round 142 (Rated for Div. 2) {1792} PROGRAMMING 111835
18905 Yet Another Promotion greedy math Statement A Codeforces Round 852 (Div. 2) {1793} PROGRAMMING 500.0 Codeforces Round #852 Editorial
23649 Scoring Subsequences binary search greedy math two pointers Statement C Codeforces Round 856 (Div. 2) {1794} PROGRAMMING 1250.0 Codeforces Round 856 (Div. 2) Editorial
43481 Not Dividing constructive algorithms greedy math Statement B Codeforces Round 856 (Div. 2) {1794} PROGRAMMING 1000.0 Codeforces Round 856 (Div. 2) Editorial
14901 Shocking Arrangement constructive algorithms greedy math Statement D Codeforces Round 860 (Div. 2) {1798} PROGRAMMING 1750.0 Editorial of Codeforces Round 860 (Div. 2) 1600
9573 Candy Store greedy math number theory Statement C Codeforces Round 860 (Div. 2) {1798} PROGRAMMING 1250.0 Editorial of Codeforces Round 860 (Div. 2) 1700
12975 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
1435 City Union constructive algorithms dp geometry greedy implementation math Statement E Codeforces Round 854 by cybercats (Div. 1 + Div. 2) {1799} PROGRAMMING 2250.0 Codeforces Round #854 Editorial
7042 Double Lexicographically Minimum constructive algorithms greedy implementation strings Statement C Codeforces Round 854 by cybercats (Div. 1 + Div. 2) {1799} PROGRAMMING 1500.0 Codeforces Round #854 Editorial
12459 Recent Actions data structures greedy implementation math Statement A Codeforces Round 854 by cybercats (Div. 1 + Div. 2) {1799} PROGRAMMING 500.0 Codeforces Round #854 Editorial
14031 Pull Your Luck brute force greedy math number theory Statement C Nebius Welcome Round (Div. 1 + Div. 2) {1804} PROGRAMMING 1000.0 Nebius Welcome Round Editorial
18766 Lame King greedy math Statement A Nebius Welcome Round (Div. 1 + Div. 2) {1804} PROGRAMMING 500.0 Nebius Welcome Round Editorial
47374 Walking Master geometry greedy math Statement A Codeforces Round 858 (Div. 2) {1806} PROGRAMMING 500.0 Codeforces Round #858 (Div. 2) Editorial
485 GCD Master (easy version) greedy math number theory sortings Statement F1 Codeforces Round 858 (Div. 2) {1806} PROGRAMMING 2500.0 Codeforces Round #858 (Div. 2) Editorial
489 GCD Master (hard version) greedy math sortings Statement F2 Codeforces Round 858 (Div. 2) {1806} PROGRAMMING 1500.0 Codeforces Round #858 (Div. 2) Editorial
29661 Subsequence Addition (Hard Version) dp greedy implementation math sortings Statement G2 Codeforces Round 859 (Div. 4) {1807} PROGRAMMING 114143
22742 Points on Plane binary search greedy math Statement B Educational Codeforces Round 145 (Rated for Div. 2) {1809} PROGRAMMING 114300
15468 Sum on Subarrays constructive algorithms greedy math Statement C Educational Codeforces Round 145 (Rated for Div. 2) {1809} PROGRAMMING 114300
35012 Insert Digit greedy math strings Statement A Codeforces Round 863 (Div. 3) {1811} PROGRAMMING 114788
12650 Search in Parallel greedy math sortings Statement C Educational Codeforces Round 146 (Rated for Div. 2) {1814} PROGRAMMING Educational Codeforces Round 146 Editorial
16206 Ian and Array Sorting greedy implementation math Statement A Codeforces Round 865 (Div. 1) {1815} PROGRAMMING 500.0 Editorial of Codeforces Round #865 1300
5612 Black Cells binary search brute force greedy math Statement D Educational Codeforces Round 147 (Rated for Div. 2) {1821} PROGRAMMING 115296
2773 Rearrange Brackets dp greedy math sortings Statement E Educational Codeforces Round 147 (Rated for Div. 2) {1821} PROGRAMMING 115296
26754 Karina and Array greedy math Statement B Codeforces Round 867 (Div. 3) {1822} PROGRAMMING Codeforces Round #867 (Div. 3) Editorial
12600 Making Anti-Palindromes greedy math strings Statement E Codeforces Round 867 (Div. 3) {1822} PROGRAMMING Codeforces Round #867 (Div. 3) Editorial
4364 Unique Palindromes binary search constructive algorithms greedy math strings Statement D Codeforces Round 868 (Div. 2) {1823} PROGRAMMING 2000.0 115465
14009 Strongly Composite greedy math number theory Statement C Codeforces Round 868 (Div. 2) {1823} PROGRAMMING 1250.0 115465
16326 LuoTianyi and the Table greedy math Statement B Codeforces Round 872 (Div. 2) {1825} PROGRAMMING 1000.0 CodeForces Round 872(Div. 1&2) Editorial 1000
15915 Dreaming of Freedom greedy math number theory Statement C Codeforces Round 870 (Div. 2) {1826} PROGRAMMING 1500.0 Codeforces Round #870 (Div. 2) Editorial 1300
3465 Red-Blue Operations (Easy Version) binary search greedy implementation math Statement D1 Educational Codeforces Round 148 (Rated for Div. 2) {1832} PROGRAMMING 116454 2100
2419 Red-Blue Operations (Hard Version) binary search constructive algorithms greedy implementation math Statement D2 Educational Codeforces Round 148 (Rated for Div. 2) {1832} PROGRAMMING 116454 2400
49995 Unit Array greedy math Statement A Codeforces Round 879 (Div. 2) {1834} PROGRAMMING 500.0 Codeforces Round #879 Editorial
17285 Maximum Strength greedy math Statement B Codeforces Round 879 (Div. 2) {1834} PROGRAMMING 1000.0 Codeforces Round #879 Editorial
1140 Lottery binary search brute force greedy math sortings two pointers Statement B Codeforces Round 880 (Div. 1) {1835} PROGRAMMING 1250.0 Codeforces Round 880 Editorial
13722 Astrophysicists greedy math Statement B Codeforces Round 880 (Div. 2) {1836} PROGRAMMING 1000.0 Codeforces Round 880 Editorial
17922 Minimize Permutation Subarrays constructive algorithms greedy math Statement B Codeforces Round 877 (Div. 2) {1838} PROGRAMMING 1000.0 Codeforces Round #877 (Div. 2) Editorial
18391 The Good Array greedy math Statement A Codeforces Round 876 (Div. 2) {1839} PROGRAMMING 500.0 Codeforces Round #876 (Div. 2) Editorial
9258 Ranom Numbers brute force dp greedy math strings Statement C Educational Codeforces Round 150 (Rated for Div. 2) {1841} PROGRAMMING 117262
2499 Fill the Matrix data structures greedy math Statement E Educational Codeforces Round 150 (Rated for Div. 2) {1841} PROGRAMMING 117262
27564 Tenzing and Books bitmasks greedy math Statement B CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!) {1842} PROGRAMMING 500.0 CodeTON Round 5 Editorial
6495 Omsk Metro (simple version) data structures dfs and similar dp greedy math trees Statement F1 Codeforces Round 881 (Div. 3) {1843} PROGRAMMING Codeforces Round #881 (Div. 3) Editorial
32512 Long Long greedy math Statement B Codeforces Round 881 (Div. 3) {1843} PROGRAMMING Codeforces Round #881 (Div. 3) Editorial
18120 Particles constructive algorithms greedy implementation math Statement C Codeforces Round 884 (Div. 1 + Div. 2) {1844} PROGRAMMING 1250.0 Codeforces Round #884 (Div. 1 + Div. 2) Editorial
20414 Permutations & Primes constructive algorithms greedy math Statement B Codeforces Round 884 (Div. 1 + Div. 2) {1844} PROGRAMMING 1000.0 Codeforces Round #884 (Div. 1 + Div. 2) Editorial
9196 Rating System brute force data structures dp greedy implementation math Statement D Educational Codeforces Round 151 (Rated for Div. 2) {1845} PROGRAMMING 117791
1120 The Boss's Identity binary search bitmasks data structures dfs and similar greedy math sortings Statement F Codeforces Round 882 (Div. 2) {1847} PROGRAMMING 3000.0 Tutorial
26445 Vika and the Bridge binary search data structures greedy implementation math sortings Statement B Codeforces Round 885 (Div. 2) {1848} PROGRAMMING 1000.0 Codeforces Round #885 (Div.2) Editorial
7269 Vika and Price Tags greedy math number theory Statement C Codeforces Round 885 (Div. 2) {1848} PROGRAMMING 1500.0 Codeforces Round #885 (Div.2) Editorial
7805 Lisa and the Martians bitmasks data structures greedy math sortings strings trees Statement F Codeforces Round 888 (Div. 3) {1851} PROGRAMMING 118667
2168 Ina of the Mountain data structures dp greedy math Statement C Codeforces Round 887 (Div. 1) {1852} PROGRAMMING 1250.0 Codeforces Round 887 (Div 1, Div 2) Tutorial
48768 Longest Divisors Interval brute force combinatorics greedy math number theory Statement B Codeforces Round 889 (Div. 2) {1855} PROGRAMMING 1000.0 Editorial of Codeforces Round 889 (Div. 1 + Div. 2)
24944 Maximum Rounding greedy implementation math Statement B Codeforces Round 891 (Div. 3) {1857} PROGRAMMING 119134
84866 Array Coloring greedy math Statement A Codeforces Round 891 (Div. 3) {1857} PROGRAMMING 119134
13208 The Walkway brute force greedy implementation math number theory Statement B Codeforces Round 893 (Div. 2) {1858} PROGRAMMING 1250.0 Codeforces Round #893 (Div. 2) Editorial 1500
71814 Buttons games greedy math Statement A Codeforces Round 893 (Div. 2) {1858} PROGRAMMING 500.0 Codeforces Round #893 (Div. 2) Editorial 800
18899 Another Permutation Problem brute force dp greedy math Statement C Codeforces Round 892 (Div. 2) {1859} PROGRAMMING 1250.0 Video solutions from Geothermal.
47317 Olya and Game with Arrays constructive algorithms greedy math sortings Statement B Codeforces Round 892 (Div. 2) {1859} PROGRAMMING 1000.0 Video solutions from Geothermal.
19231 Fancy Coins binary search brute force greedy math Statement B Educational Codeforces Round 153 (Rated for Div. 2) {1860} PROGRAMMING Educational Codeforces Round 153 Editorial
8130 Sorting By Multiplication dp greedy math Statement D Educational Codeforces Round 154 (Rated for Div. 2) {1861} PROGRAMMING Educational Codeforces Round 154 Editorial
16923 Split Sort greedy math sortings Statement B Pinely Round 2 (Div. 1 + Div. 2) {1863} PROGRAMMING 750.0
2811 Candy Party (Hard Version) bitmasks constructive algorithms dp graphs greedy implementation math Statement B2 Codeforces Round 896 (Div. 1) {1868} PROGRAMMING 750.0 Codeforces Round 896 (Div. 1, Div. 2) Editorial
8454 Candy Party (Easy Version) bitmasks constructive algorithms graphs greedy implementation math Statement B1 Codeforces Round 896 (Div. 1) {1868} PROGRAMMING 500.0 Codeforces Round 896 (Div. 1, Div. 2) Editorial
16509 Friendly Arrays bitmasks greedy math Statement B CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) {1870} PROGRAMMING 750.0 CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
20351 MEXanized Array constructive algorithms greedy math Statement A CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) {1870} PROGRAMMING 500.0 CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!) Editorial
43707 Two Vessels greedy math Statement A Codeforces Round 895 (Div. 3) {1872} PROGRAMMING Codeforces Round 895 (Div. 3) Editorial
64386 Good Kid brute force brute force brute force greedy math Statement B Codeforces Round 898 (Div. 4) {1873} PROGRAMMING 120634
20370 Money Trees greedy greedy greedy math two pointers Statement F Codeforces Round 898 (Div. 4) {1873} PROGRAMMING 120634
2239 Jellyfish and EVA dp graphs greedy math probabilities Statement C Codeforces Round 901 (Div. 1) {1874} PROGRAMMING 1500.0 Codeforces Round 901 (Div. 1, Div. 2) Editorial
14122 Jellyfish and Green Apple bitmasks greedy math number theory Statement C Codeforces Round 901 (Div. 2) {1875} PROGRAMMING 1000.0 Codeforces Round 901 (Div. 1, Div. 2) Editorial
19322 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
15001 Haunted House greedy math two pointers Statement B Codeforces Round 904 (Div. 2) {1884} PROGRAMMING 1000.0 Codeforces Round #904 (Div. 2) Editorial
1126 Brukhovich and Exams brute force greedy math sortings Statement E Codeforces Round 907 (Div. 2) {1891} PROGRAMMING 2000.0
1135 Colorful Constructive constructive algorithms greedy math Statement D Codeforces Round 908 (Div. 1) {1893} PROGRAMMING 2250.0 Codeforces Round 908 (Div. 1, Div, 2) Editorial
1925 Infinite Card Game brute force dfs and similar games graphs greedy sortings Statement E Educational Codeforces Round 157 (Rated for Div. 2) {1895} PROGRAMMING Educational Codeforces Round 157 Editorial
21744 Points and Minimum Distance greedy math sortings Statement B Educational Codeforces Round 157 (Rated for Div. 2) {1895} PROGRAMMING Educational Codeforces Round 157 Editorial
14905 Milena and Admirer greedy math Statement B Codeforces Round 910 (Div. 2) {1898} PROGRAMMING 1250.0 Editorial for Codeforces Round #910 (Div. 2)
6871 Absolute Beauty greedy math Statement D Codeforces Round 910 (Div. 2) {1898} PROGRAMMING 1750.0 Editorial for Codeforces Round #910 (Div. 2)
8793 Yet Another Monster Fight binary search greedy implementation math Statement D Educational Codeforces Round 158 (Rated for Div. 2) {1901} PROGRAMMING Educational Codeforces Round 158 Editorial
14548 Add, Divide and Floor constructive algorithms greedy math Statement C Educational Codeforces Round 158 (Rated for Div. 2) {1901} PROGRAMMING Educational Codeforces Round 158 Editorial
17198 Chip and Ribbon greedy math Statement B Educational Codeforces Round 158 (Rated for Div. 2) {1901} PROGRAMMING Educational Codeforces Round 158 Editorial
17584 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
2604 Geo Game constructive algorithms dp games greedy interactive math Statement E Codeforces Round 912 (Div. 2) {1903} PROGRAMMING 2250.0 Codeforces Round #912 (Div. 2) Editorial
23578 Removal of Unattractive Pairs constructive algorithms greedy math strings Statement C Codeforces Round 913 (Div. 3) {1907} PROGRAMMING Codeforces Round 913 (Div. 3) Editorial
13446 Heavy Intervals constructive algorithms data structures dsu greedy math sortings Statement C Pinely Round 3 (Div. 1 + Div. 2) {1909} PROGRAMMING 1500.0 Editorial of Pinely Round 3 (Div. 1 + Div. 2)
5204 Split Plus K greedy math number theory Statement D Pinely Round 3 (Div. 1 + Div. 2) {1909} PROGRAMMING 2000.0 Editorial of Pinely Round 3 (Div. 1 + Div. 2)
42767 Quests greedy math Statement C Codeforces Round 916 (Div. 3) {1914} PROGRAMMING Codeforces Round 916 (Div. 3) Editorial
37152 Romantic Glasses data structures greedy math Statement E Codeforces Round 918 (Div. 4) {1915} PROGRAMMING 123952
12621 Watering an Array brute force greedy implementation math Statement C Codeforces Round 917 (Div. 2) {1917} PROGRAMMING 1500.0 Editorial of Codeforces Round 917 (Div. 2)
17165 XOR-distance bitmasks dp greedy implementation math Statement C Codeforces Round 922 (Div. 2) {1918} PROGRAMMING 1250.0 Codeforces Round #922 (Div. 2) Editorial
32625 Brick Wall constructive algorithms greedy implementation math Statement A Codeforces Round 922 (Div. 2) {1918} PROGRAMMING 500.0 Codeforces Round #922 (Div. 2) Editorial
29849 Satisfying Constraints brute force greedy math schedules Statement A Codeforces Round 919 (Div. 2) {1920} PROGRAMMING 500.0 Editorial for Codeforces Round #919 (Div. 2)
50350 Square greedy math Statement A Codeforces Round 920 (Div. 3) {1921} PROGRAMMING Editorial for Codeforces Round 920 (Div. 3)
33031 Sending Messages greedy math Statement C Codeforces Round 920 (Div. 3) {1921} PROGRAMMING Editorial for Codeforces Round 920 (Div. 3)
23739 A Balanced Problemset? brute force greedy math number theory Statement B Codeforces Round 921 (Div. 2) {1925} PROGRAMMING 1000.0 Codeforces Round 921 (Div. 1, Div. 2) Editorial
32003 Choose the Different Ones! brute force greedy math Statement C Codeforces Round 923 (Div. 3) {1927} PROGRAMMING 125597
2058 Paint Charges data structures dp greedy math Statement G Codeforces Round 923 (Div. 3) {1927} PROGRAMMING 125597
5274 Lonely Mountain Dungeons binary search brute force data structures greedy math ternary search Statement D Codeforces Round 924 (Div. 2) {1928} PROGRAMMING 1750.0 Codeforces Round 924 Editorial
2260 Modular Sequence constructive algorithms dp greedy implementation math number theory Statement E Codeforces Round 924 (Div. 2) {1928} PROGRAMMING 2250.0 Codeforces Round 924 Editorial
24572 Rectangle Cutting constructive algorithms geometry greedy math Statement A Codeforces Round 924 (Div. 2) {1928} PROGRAMMING 500.0 Codeforces Round 924 Editorial
17594 Sasha and the Casino binary search brute force dp games greedy math Statement C Codeforces Round 926 (Div. 2) {1929} PROGRAMMING 1500.0 Codeforces Round #926 (Div. 2) Editorial.
26900 Sasha and the Drawing constructive algorithms greedy math Statement B Codeforces Round 926 (Div. 2) {1929} PROGRAMMING 1000.0 Codeforces Round #926 (Div. 2) Editorial.
4930 Sum over all Substrings (Easy Version) brute force dp greedy strings Statement D1 think-cell Round 1 {1930} PROGRAMMING 1250.0 think-cell Round 1 Editorial
3135 Sum over all Substrings (Hard Version) dp greedy strings Statement D2 think-cell Round 1 {1930} PROGRAMMING 1000.0 think-cell Round 1 Editorial
34415 Make Equal Again brute force greedy math Statement C Codeforces Round 925 (Div. 3) {1931} PROGRAMMING 125878
27683 Anna and the Valentine's Day Gift games greedy math sortings Statement E Codeforces Round 925 (Div. 3) {1931} PROGRAMMING 125878
42564 Turtle Puzzle: Rearrange and Negate greedy math sortings Statement A Codeforces Round 929 (Div. 3) {1933} PROGRAMMING Codeforces Round 929 (Div. 3) Editorial
22428 Yet Another Coin Problem brute force dp greedy math Statement B Codeforces Round 931 (Div. 2) {1934} PROGRAMMING 1000.0 Tutorial
8263 Find a Mine constructive algorithms geometry greedy interactive math Statement C Codeforces Round 931 (Div. 2) {1934} PROGRAMMING 1500.0 Tutorial
27503 Too Min Too Max constructive algorithms greedy math Statement A Codeforces Round 931 (Div. 2) {1934} PROGRAMMING 500.0 Tutorial
1691 Distance Learning Courses in MAC binary search bitmasks data structures greedy implementation math Statement E Codeforces Round 932 (Div. 2) {1935} PROGRAMMING 2500.0 Codeforces Round #932 (Div. 2) Editorial
8782 Bitwise Operation Wizard bitmasks constructive algorithms greedy interactive math Statement A Codeforces Round 930 (Div. 1) {1936} PROGRAMMING 500.0 Codeforces Round 930 (Div. 1, Div. 2) Editorial
17605 Binary Path greedy implementation Statement B Codeforces Round 930 (Div. 2) {1937} PROGRAMMING 1000.0 Codeforces Round 930 (Div. 1, Div. 2) Editorial
35448 Rudolf and 121 greedy math Statement B Codeforces Round 933 (Div. 3) {1941} PROGRAMMING 127018
6979 Bessie's Birthday Cake (Hard Version) geometry greedy math Statement C2 CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!) {1942} PROGRAMMING 750.0 CodeTON Round 8 Editorial
30663 Setting up Camp greedy math Statement A Codeforces Round 935 (Div. 3) {1945} PROGRAMMING 127377
23933 Maximum Sum greedy math Statement B Codeforces Round 936 (Div. 2) {1946} PROGRAMMING 1000.0 Codeforces Round #936 (Div. 2) Editorial
11495 0, 1, 2, Tree! greedy math trees Statement F Codeforces Round 937 (Div. 4) {1950} PROGRAMMING Codeforces Round 937 (Div. 4) Editorial
4611 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
6394 Buying Jewels constructive algorithms greedy math Statement D Codeforces Global Round 25 {1951} PROGRAMMING 1750.0 Codeforces Global Round 25 Editorial
22875 Dual Trigger greedy math Statement A Codeforces Global Round 25 {1951} PROGRAMMING 500.0 Codeforces Global Round 25 Editorial
13973 Ticket Hoarding greedy math sortings Statement C Codeforces Global Round 25 {1951} PROGRAMMING 1500.0 Codeforces Global Round 25 Editorial
8380 Colored Balls combinatorics dp greedy math sortings Statement D Educational Codeforces Round 164 (Rated for Div. 2) {1954} PROGRAMMING Educational Codeforces Round 164 Editorial
3064 Chain Reaction data structures dsu greedy implementation math number theory Statement E Educational Codeforces Round 164 (Rated for Div. 2) {1954} PROGRAMMING Educational Codeforces Round 164 Editorial
23216 Long Multiplication greedy math Statement C Educational Codeforces Round 164 (Rated for Div. 2) {1954} PROGRAMMING Educational Codeforces Round 164 Editorial
8882 Unfair Game dp games greedy math Statement F Codeforces Round 938 (Div. 3) {1955} PROGRAMMING 128243
25066 Inhabitant of the Deep Sea greedy implementation math Statement C Codeforces Round 938 (Div. 3) {1955} PROGRAMMING 128243
15393 Nene's Magical Matrix constructive algorithms greedy math Statement C Codeforces Round 939 (Div. 2) {1956} PROGRAMMING 1500.0 [Editorial] Codeforces Round 939 (Div. 2)
17245 Everything Nim games greedy math sortings Statement A Codeforces Round 941 (Div. 1) {1965} PROGRAMMING 500.0 Codeforces Round #941 (Div. 1, Div. 2) Editorial 1400
2480 Folding Strip constructive algorithms greedy strings Statement C Codeforces Round 941 (Div. 1) {1965} PROGRAMMING 1500.0 Codeforces Round #941 (Div. 1, Div. 2) Editorial 2300
15271 Permutation Counting binary search greedy implementation math sortings Statement A Codeforces Round 942 (Div. 1) {1967} PROGRAMMING 750.0 Tutorial 1400
17725 Permutation Game brute force dfs and similar games graphs greedy math Statement D Codeforces Round 943 (Div. 3) {1968} PROGRAMMING 129096 1300
5821 Shop Game data structures greedy math sortings Statement D Educational Codeforces Round 165 (Rated for Div. 2) {1969} PROGRAMMING Educational Codeforces Round 165 Editorial 1900
17135 Cat, Fox and the Lonely Array binary search bitmasks data structures greedy math two pointers Statement B Codeforces Round 945 (Div. 2) {1973} PROGRAMMING 1000.0 Editorial for Codeforces Round #945 (Div. 2) 1300
10004 Cat, Fox and Double Maximum constructive algorithms greedy implementation math sortings Statement C Codeforces Round 945 (Div. 2) {1973} PROGRAMMING 1500.0 Editorial for Codeforces Round #945 (Div. 2) 1700
38360 Phone Desktop greedy math Statement A Codeforces Round 946 (Div. 3) {1974} PROGRAMMING Codeforces Round #946 (Div. 3) Editorial 800
21323 378QAQ and Mocha's Array brute force greedy math sortings Statement B Codeforces Round 947 (Div. 1 + Div. 2) {1975} PROGRAMMING 500.0 editorial_zh.pdf 1000
357 Zimpha Fan Club fft greedy math strings Statement G Codeforces Round 947 (Div. 1 + Div. 2) {1975} PROGRAMMING 3000.0 editorial_zh.pdf 3000
221 378QAQ and Core greedy strings Statement H Codeforces Round 947 (Div. 1 + Div. 2) {1975} PROGRAMMING 4500.0 editorial_zh.pdf 3500
1353 Splittable Permutations combinatorics data structures dfs and similar greedy math trees Statement E Educational Codeforces Round 166 (Rated for Div. 2) {1976} PROGRAMMING Educational Codeforces Round 166 Editorial
20150 Binary Colouring bitmasks constructive algorithms greedy math Statement B Codeforces Round 948 (Div. 2) {1977} PROGRAMMING 1250.0 129858 1100
8198 Nikita and LCM brute force data structures dp greedy math number theory sortings Statement C Codeforces Round 948 (Div. 2) {1977} PROGRAMMING 1750.0 129858 1900
25665 New Bakery binary search greedy math ternary search Statement B Codeforces Round 953 (Div. 2) {1978} PROGRAMMING 750.0 130527
18086 Manhattan Permutations constructive algorithms greedy implementation math Statement C Codeforces Round 953 (Div. 2) {1978} PROGRAMMING 1250.0 130527
13910 Elections data structures greedy implementation math Statement D Codeforces Round 953 (Div. 2) {1978} PROGRAMMING 1500.0 130527
17723 GCD-sequence greedy implementation math math number theory number theory Statement D Codeforces Round 950 (Div. 3) {1980} PROGRAMMING 130135
6451 Turtle and an Incomplete Sequence bitmasks constructive algorithms greedy implementation math Statement C Codeforces Round 949 (Div. 2) {1981} PROGRAMMING 1500.0 Simplified Chinese Tutorial
24397 Turtle and Piggy Are Playing a Game brute force greedy math Statement A Codeforces Round 949 (Div. 2) {1981} PROGRAMMING 500.0 Simplified Chinese Tutorial
27673 Soccer greedy implementation math sortings Statement A Codeforces Round 955 (Div. 2, with prizes from NEAR!) {1982} PROGRAMMING 500.0 130839
11549 Swap Dilemma constructive algorithms divide and conquer greedy math sortings Statement D Codeforces Round 956 (Div. 2) and ByteRace 2024 {1983} PROGRAMMING 1750.0
18636 Corner Twist constructive algorithms greedy implementation math Statement B Codeforces Round 956 (Div. 2) and ByteRace 2024 {1983} PROGRAMMING 1000.0
29319 Upload More RAM greedy math Statement A EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2) {1987} PROGRAMMING 250.0 EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2) Editorial
27362 Split the Multiset brute force dp greedy math Statement A Codeforces Round 958 (Div. 2) {1988} PROGRAMMING 500.0 Editorial of Codeforces Round 958 (Div. 2)
7253 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
14912 Mad MAD Sum brute force greedy math Statement C Codeforces Round 960 (Div. 2) {1990} PROGRAMMING 1500.0 Video Tutorial
8028 Prime XOR Coloring bitmasks constructive algorithms graphs greedy math number theory Statement D Pinely Round 4 (Div. 1 + Div. 2) {1991} PROGRAMMING 1500.0 Video Tutorial
2839 Triangle Formation brute force greedy math sortings Statement F Pinely Round 4 (Div. 1 + Div. 2) {1991} PROGRAMMING 2500.0 Video Tutorial
18023 Absolute Zero constructive algorithms greedy math Statement C Pinely Round 4 (Div. 1 + Div. 2) {1991} PROGRAMMING 1000.0 Video Tutorial
50181 Only Pluses brute force constructive algorithms greedy math sortings Statement A Codeforces Round 957 (Div. 3) {1992} PROGRAMMING Shayan's Video Tutorial
38515 Angry Monk greedy math sortings Statement B Codeforces Round 957 (Div. 3) {1992} PROGRAMMING Shayan's Video Tutorial
19886 Fun Game bitmasks constructive algorithms greedy math Statement B Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2) {1994} PROGRAMMING 1000.0 Video Tutorial
5707 Wooden Game bitmasks greedy math trees Statement E Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2) {1994} PROGRAMMING 2000.0 Video Tutorial
7783 Funny Game constructive algorithms dsu graphs greedy math number theory Statement D Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2) {1994} PROGRAMMING 2000.0 Video Tutorial
10319 Bouquet (Hard Version) binary search data structures greedy math sortings two pointers Statement B2 Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 500.0 Video Tutorial
10467 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
26582 Diagonals brute force greedy implementation math Statement A Codeforces Round 961 (Div. 2) {1995} PROGRAMMING 500.0 Video Tutorial
6515 Bomb binary search greedy math Statement F Codeforces Round 962 (Div. 3) {1996} PROGRAMMING Codeforces Round 962 (Div. 3) Editorial
2319 Eliminating Balls With Merging (Easy Version) binary search brute force data structures divide and conquer dp greedy math Statement E1 Codeforces Round 965 (Div. 2) {1998} PROGRAMMING 1750.0 Video Tutorial
16691 Photoshoot for Gorillas combinatorics data structures greedy math Statement E Codeforces Round 966 (Div. 3) {2000} PROGRAMMING 132689
7219 Color Rows and Columns dp greedy implementation math Statement F Codeforces Round 966 (Div. 3) {2000} PROGRAMMING 132689
18019 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
13699 Turtle and a MEX Problem (Easy Version) greedy math Statement D1 Codeforces Round 968 (Div. 2) {2003} PROGRAMMING 1000.0 sol-zh.pdf
1439 Make a Palindrome brute force data structures dp greedy math Statement F Educational Codeforces Round 169 (Rated for Div. 2) {2004} PROGRAMMING Educational Codeforces Round 169 Editorial
22248 The Strict Teacher (Hard Version) binary search greedy math sortings Statement B2 Codeforces Round 972 (Div. 2) {2005} PROGRAMMING 500.0 Discussion stream (With Hints)
25248 The Strict Teacher (Easy Version) greedy math sortings Statement B1 Codeforces Round 972 (Div. 2) {2005} PROGRAMMING 500.0 Discussion stream (With Hints)
9817 Iris and Game on the Tree games graphs greedy trees Statement A Codeforces Round 969 (Div. 1) {2006} PROGRAMMING 750.0 Tutorial
6834 Sakurako's Task binary search brute force greedy math number theory Statement G Codeforces Round 970 (Div. 3) {2008} PROGRAMMING Codeforces Round 970 (Div. 3) Editorial
3684 Sakurako's Test binary search brute force greedy math number theory Statement H Codeforces Round 970 (Div. 3) {2008} PROGRAMMING Codeforces Round 970 (Div. 3) Editorial
42428 Sakurako's Exam brute force constructive algorithms greedy math Statement A Codeforces Round 970 (Div. 3) {2008} PROGRAMMING Codeforces Round 970 (Div. 3) Editorial
7657 Minimize the Difference binary search data structures greedy implementation math Statement D Codeforces Round 973 (Div. 2) {2013} PROGRAMMING 2000.0 134298
4392 Prefix GCD brute force dp greedy math number theory Statement E Codeforces Round 973 (Div. 2) {2013} PROGRAMMING 2500.0 134298
28715 Battle for Survive constructive algorithms greedy math Statement B Codeforces Round 973 (Div. 2) {2013} PROGRAMMING 750.0 134298
28187 Robin Hood in Town binary search divide and conquer greedy math Statement C Codeforces Round 974 (Div. 3) {2014} PROGRAMMING Discussion stream (With Hints)
247 Complex Segments (Easy Version) binary search data structures divide and conquer dsu greedy math sortings Statement E1 Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 2250.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
211 Complex Segments (Hard Version) binary search data structures divide and conquer dsu greedy math sortings Statement E2 Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 750.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
5333 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)
12873 Cards Partition brute force greedy implementation math Statement A Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 500.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
346 Speedbreaker Counting (Easy Version) combinatorics dp games greedy implementation math Statement F1 Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 1500.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
303 Speedbreaker Counting (Medium Version) dp greedy math Statement F2 Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 1500.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
341 Speedbreaker Counting (Hard Version) dp greedy math Statement F3 Codeforces Round 975 (Div. 1) {2018} PROGRAMMING 1500.0 Editorial of Codeforces Round 975 (Div. 1, Div. 2)
26339 Find Minimum Operations bitmasks greedy math Statement A Codeforces Round 976 (Div. 2) and Divide By Zero 9.0 {2020} PROGRAMMING 500.0 Tutorial for Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
1969 Digital Village (Easy Version) brute force data structures dp dsu graphs greedy implementation math shortest paths trees Statement E1 Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 1750.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
19223 Maximize Mex brute force greedy math number theory Statement B Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 750.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
730 Digital Village (Extreme Version) data structures dp graphs greedy math Statement E3 Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 1000.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
978 Boss, Thirsty data structures dp greedy math Statement D Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 2500.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
21835 Meaning Mean data structures greedy math sortings Statement A Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round) {2021} PROGRAMMING 500.0 Codeforces Round #977 (Div. 2, based on COMPFEST 16 — Final Round) Editorial
17456 Bus to Pénjamo greedy implementation math Statement A Codeforces Round 978 (Div. 2) {2022} PROGRAMMING 750.0 Codeforces Round 978 (Div 2) Editorial
14955 Kar Salesman greedy math Statement B Codeforces Round 978 (Div. 2) {2022} PROGRAMMING 1000.0 Codeforces Round 978 (Div 2) Editorial
1403 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