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2681 Omkar and Landslide binary search constructive algorithms greedy math Statement F Codeforces Global Round 10 {1392} PROGRAMMING 2500.0 Codeforces Global Round 10 — Editorial
10023 Omkar and Bed Wars constructive algorithms dp greedy math strings Statement D Codeforces Global Round 10 {1392} PROGRAMMING 1500.0 Codeforces Global Round 10 — Editorial
19725 Omkar and Waterslide greedy implementation Statement C Codeforces Global Round 10 {1392} PROGRAMMING 1000.0 Codeforces Global Round 10 — Editorial
11105 Pinkie Pie Eats Patty-cakes binary search constructive algorithms data structures greedy math sortings Statement C Codeforces Round 662 (Div. 2) {1393} PROGRAMMING 1500.0 Codeforces Round #662 Editorial
17467 Applejack and Storages data structures greedy implementation Statement B Codeforces Round 662 (Div. 2) {1393} PROGRAMMING 1000.0 Codeforces Round #662 Editorial
20861 Rainbow Dash, Fluttershy and Chess Coloring greedy math Statement A Codeforces Round 662 (Div. 2) {1393} PROGRAMMING 500.0 Codeforces Round #662 Editorial
7163 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
1314 Boboniu and Jianghu dp greedy sortings trees Statement D Codeforces Round 664 (Div. 1) {1394} PROGRAMMING 1750.0 Codeforces Round #664 Editorial 2800
16840 Multiples of Length constructive algorithms greedy number theory Statement A Codeforces Round 666 (Div. 1) {1396} PROGRAMMING 500.0 Codeforces Round #666 — Editorial
29983 Juggling Letters greedy strings Statement A Codeforces Round 666 (Div. 2) {1397} PROGRAMMING 500.0 Codeforces Round #666 — Editorial
2641 Two Types of Spells binary search data structures greedy implementation math sortings Statement E Educational Codeforces Round 93 (Rated for Div. 2) {1398} PROGRAMMING Educational Codeforces Round 93 Editorial
12773 Colored Rectangles dp graph matchings greedy sortings Statement D Educational Codeforces Round 93 (Rated for Div. 2) {1398} PROGRAMMING Educational Codeforces Round 93 Editorial
26140 Substring Removal Game games greedy sortings strings Statement B Educational Codeforces Round 93 (Rated for Div. 2) {1398} PROGRAMMING Educational Codeforces Round 93 Editorial
2585 Weights Division (hard version) binary search data structures dfs and similar greedy trees two pointers Statement E2 Codeforces Round 661 (Div. 3) {1399} PROGRAMMING Codeforces Round #661 (Div. 3) Editorial
6427 Weights Division (easy version) data structures dfs and similar greedy trees Statement E1 Codeforces Round 661 (Div. 3) {1399} PROGRAMMING Codeforces Round #661 (Div. 3) Editorial
83205 Remove Smallest greedy sortings Statement A Codeforces Round 661 (Div. 3) {1399} PROGRAMMING Codeforces Round #661 (Div. 3) Editorial
18647 Binary String Reconstruction 2-sat constructive algorithms greedy strings Statement C Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
11758 RPG Protagonist binary search brute force greedy math Statement B Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
1284 x-prime Substrings bitmasks dp greedy number theory string suffix structures strings Statement F Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
6531 Clear the Multiset divide and conquer dp greedy sortings Statement E Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
10784 Maximum Distributed Tree constructive algorithms dfs and similar greedy math number theory sortings trees Statement D Codeforces Round 665 (Div. 2) {1401} PROGRAMMING 1750.0 Codeforces Round #665 (Div. 2) Editorial
21865 Ternary Sequence constructive algorithms greedy math Statement B Codeforces Round 665 (Div. 2) {1401} PROGRAMMING 1000.0 Codeforces Round #665 (Div. 2) Editorial
3872 Three Sequences binary search data structures greedy math Statement D Codeforces Round 670 (Div. 2) {1406} PROGRAMMING 2000.0 Codeforces Round #670 (Div. 2) Editorial
24810 Maximum Product brute force dp greedy implementation sortings Statement B Codeforces Round 670 (Div. 2) {1406} PROGRAMMING 1000.0 Codeforces Round #670 (Div. 2) Editorial
23291 Subset Mex greedy implementation math Statement A Codeforces Round 670 (Div. 2) {1406} PROGRAMMING 500.0 Codeforces Round #670 (Div. 2) Editorial
18239 Big Vova brute force greedy math number theory Statement B Codeforces Round 669 (Div. 2) {1407} PROGRAMMING 1000.0 Codeforces Round #669 Editorial
2010 Egor in the Republic of Dagestan constructive algorithms dfs and similar dp graphs greedy shortest paths Statement E Codeforces Round 669 (Div. 2) {1407} PROGRAMMING 2500.0 Codeforces Round #669 Editorial
10507 Arrays Sum constructive algorithms greedy math Statement B Grakn Forces 2020 {1408} PROGRAMMING 1000.0 Grakn Forces -- Editorial
2236 Avoid Rainbow Cycles dsu graphs greedy sortings Statement E Grakn Forces 2020 {1408} PROGRAMMING 2500.0 Grakn Forces -- Editorial
31259 Minimum Product brute force greedy math Statement B Codeforces Round 667 (Div. 3) {1409} PROGRAMMING Codeforces Round #667 (Div. 3) Editorial
21681 Decrease the Sum of Digits greedy math Statement D Codeforces Round 667 (Div. 3) {1409} PROGRAMMING Codeforces Round #667 (Div. 3) Editorial
2765 Grime Zoo constructive algorithms greedy implementation Statement D Technocup 2021 - Elimination Round 3 {1411} PROGRAMMING 2000.0 Technocup 2021 Elimination Round 3 and Round #692 (Div. 1 + Div. 2) Editorial
1865 Poman Numbers greedy implementation math Statement E Technocup 2021 - Elimination Round 3 {1411} PROGRAMMING 2250.0 Technocup 2021 Elimination Round 3 and Round #692 (Div. 1 + Div. 2) Editorial
527 The Thorny Path greedy math matrices Statement F Technocup 2021 - Elimination Round 3 {1411} PROGRAMMING 2750.0 Technocup 2021 Elimination Round 3 and Round #692 (Div. 1 + Div. 2) Editorial
6962 Shurikens data structures greedy implementation Statement D Technocup 2021 - Elimination Round 1 {1413} PROGRAMMING 2000.0 Codeforces Round 679 (Div. 1, Div. 2) and Technocup Round 1 editorial
3058 New Game Plus! constructive algorithms greedy math Statement E Technocup 2021 - Elimination Round 2 {1415} PROGRAMMING 2500.0 Editorial of Codeforces Round 687 (Technocup 2021 — Elimitation Round 2)
5218 XOR Inverse bitmasks data structures divide and conquer greedy strings trees Statement C Codeforces Round 673 (Div. 1) {1416} PROGRAMMING 1250.0 Codeforces Round #673 Editorial 2000
6766 Make Them Equal constructive algorithms greedy math Statement B Codeforces Round 673 (Div. 1) {1416} PROGRAMMING 1000.0 Codeforces Round #673 Editorial 2000
15147 Two Arrays greedy math sortings Statement B Codeforces Round 673 (Div. 2) {1417} PROGRAMMING 1000.0 Codeforces Round #673 Editorial 1100
18780 Copy-paste greedy math Statement A Codeforces Round 673 (Div. 2) {1417} PROGRAMMING 500.0 Codeforces Round #673 Editorial 800
17812 Negative Prefixes greedy sortings Statement B Educational Codeforces Round 95 (Rated for Div. 2) {1418} PROGRAMMING Unofficial Editorial for Educational Round 95 (Div. 2)
17656 Sage's Birthday (hard version) binary search constructive algorithms greedy implementation sortings two pointers Statement D2 Codeforces Round 671 (Div. 2) {1419} PROGRAMMING 1000.0 Codeforces Round #671 Editorial
26670 Sage's Birthday (easy version) binary search greedy implementation sortings Statement D1 Codeforces Round 671 (Div. 2) {1419} PROGRAMMING 750.0 Codeforces Round #671 Editorial
17107 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
16411 Killjoy greedy implementation math Statement C Codeforces Round 671 (Div. 2) {1419} PROGRAMMING 1250.0 Codeforces Round #671 Editorial
5281 Pokémon Army (hard version) data structures divide and conquer dp greedy implementation Statement C2 Codeforces Round 672 (Div. 2) {1420} PROGRAMMING 1250.0
36715 XORwice bitmasks greedy math Statement A Codeforces Round 676 (Div. 2) {1421} PROGRAMMING 500.0 Codeforces Round #676 (Div. 2) Editorial
915 Minlexes dp greedy implementation strings Statement E Codeforces Round 675 (Div. 2) {1422} PROGRAMMING 2000.0 Codeforces Round #675 (Div. 2) Editorial
15142 Nice Matrix greedy implementation ternary search Statement B Codeforces Round 675 (Div. 2) {1422} PROGRAMMING 750.0 Codeforces Round #675 (Div. 2) Editorial
1027 Excitation of Atoms greedy implementation Statement E 2020 ICPC, COMPFEST 12, Indonesia Multi-Provincial Contest (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {1425} PROGRAMMING Tutorial 2200
8212 Rock, Paper, Scissors brute force constructive algorithms flows greedy math Statement E Codeforces Round 674 (Div. 3) {1426} PROGRAMMING 83120 1800
11535 Chess Cheater greedy implementation sortings Statement B Codeforces Global Round 11 {1427} PROGRAMMING 750.0 Editorial of Global Round 11 1400
431 Boring Card Game data structures greedy trees Statement F Codeforces Global Round 11 {1427} PROGRAMMING 2250.0 Editorial of Global Round 11 3200
4367 Carrots for Rabbits binary search data structures greedy math Statement E Codeforces Raif Round 1 (Div. 1 + Div. 2) {1428} PROGRAMMING 1750.0 Codeforces Raif Round 1 Editorial
22922 ABBB greedy strings Statement C Codeforces Raif Round 1 (Div. 1 + Div. 2) {1428} PROGRAMMING 1000.0 Codeforces Raif Round 1 Editorial
7436 String Reversal data structures greedy strings Statement E Educational Codeforces Round 96 (Rated for Div. 2) {1430} PROGRAMMING Educational Codeforces Round 96 — Editorial
20415 Barrels greedy implementation sortings Statement B Educational Codeforces Round 96 (Rated for Div. 2) {1430} PROGRAMMING Educational Codeforces Round 96 — Editorial
9428 String Deletion greedy two pointers Statement D Educational Codeforces Round 96 (Rated for Div. 2) {1430} PROGRAMMING Educational Codeforces Round 96 — Editorial
30060 Yet Another Bookshelf greedy implementation Statement B Codeforces Round 677 (Div. 3) {1433} PROGRAMMING Codeforces Round #677 (Div. 3) Editorial
6571 Bandit in a City binary search dfs and similar greedy trees Statement D Codeforces Round 678 (Div. 2) {1436} PROGRAMMING 2000.0 Codeforces Round #678 (Div. 2). Editorial
18514 Marketing Scheme brute force constructive algorithms greedy math Statement A Educational Codeforces Round 97 (Rated for Div. 2) {1437} PROGRAMMING 84149
14617 Minimal Height Tree graphs greedy shortest paths trees Statement D Educational Codeforces Round 97 (Rated for Div. 2) {1437} PROGRAMMING 84149
1503 Yurii Can Do Everything brute force divide and conquer greedy implementation Statement E Codeforces Round 682 (Div. 2) {1438} PROGRAMMING 2250.0 Codeforces Round #682 (Div. 2) Editorial
31141 Valerii Against Everyone constructive algorithms greedy sortings Statement B Codeforces Round 682 (Div. 2) {1438} PROGRAMMING 750.0 Codeforces Round #682 (Div. 2) Editorial
5420 Binary Table (Hard Version) constructive algorithms graphs greedy implementation Statement A2 Codeforces Round 684 (Div. 1) {1439} PROGRAMMING 500.0 Codeforces Round #684[Div1 and Div2] Editorial
32739 Sum of Medians greedy math Statement B Codeforces Round 684 (Div. 2) {1440} PROGRAMMING 1000.0 Codeforces Round #684[Div1 and Div2] Editorial
5440 Identify the Operations brute force combinatorics data structures dsu greedy implementation Statement B Codeforces Round 681 (Div. 1, based on VK Cup 2019-2020 - Final) {1442} PROGRAMMING 1000.0 84298
2032 Graph Transpositions graphs greedy shortest paths Statement C Codeforces Round 681 (Div. 1, based on VK Cup 2019-2020 - Final) {1442} PROGRAMMING 1500.0 84298
17067 The Delivery Dilemma binary search greedy sortings Statement C Codeforces Round 681 (Div. 2, based on VK Cup 2019-2020 - Final) {1443} PROGRAMMING 1500.0 VK Cup 2019-2020 -- Engine Editorial
16756 Saving the City greedy math sortings Statement B Codeforces Round 681 (Div. 2, based on VK Cup 2019-2020 - Final) {1443} PROGRAMMING 1000.0 VK Cup 2019-2020 -- Engine Editorial
20425 Array Rearrangment greedy sortings Statement A Codeforces Round 680 (Div. 2, based on Moscow Team Olympiad) {1445} PROGRAMMING 500.0 Codeforces Round #680 Editorial
18123 Knapsack constructive algorithms greedy sortings Statement A Codeforces Round 683 (Div. 1, by Meet IT) {1446} PROGRAMMING 500.0 E
28641 Numbers Box greedy math Statement B Codeforces Round 683 (Div. 2, by Meet IT) {1447} PROGRAMMING 1000.0 Meet IT Codeforces Round Editorial
17457 String Equality dp greedy hashing implementation strings Statement C Codeforces Round 685 (Div. 2) {1451} PROGRAMMING 1250.0 Editorial — Codeforces Round #685
20476 Non-Substring Subsequence greedy implementation strings Statement B Codeforces Round 685 (Div. 2) {1451} PROGRAMMING 750.0 Editorial — Codeforces Round #685
25402 Subtract or Divide greedy math Statement A Codeforces Round 685 (Div. 2) {1451} PROGRAMMING 500.0 Editorial — Codeforces Round #685
15585 Toy Blocks binary search greedy math sortings Statement B Educational Codeforces Round 98 (Rated for Div. 2) {1452} PROGRAMMING 84847
1763 Two Editorials brute force data structures greedy implementation Statement E Educational Codeforces Round 98 (Rated for Div. 2) {1452} PROGRAMMING 84847
2259 Dog Snacks binary search dfs and similar dp greedy trees Statement E Codeforces Round 688 (Div. 2) {1453} PROGRAMMING 2500.0 Codeforces Round #688 (Div. 2) Editorial
4478 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
6276 Triangles greedy implementation Statement C Codeforces Round 688 (Div. 2) {1453} PROGRAMMING 1500.0 Codeforces Round #688 (Div. 2) Editorial
4956 Array Partition binary search brute force data structures greedy two pointers Statement F Codeforces Round 686 (Div. 3) {1454} PROGRAMMING Codeforces Round #686 (Div. 3) Editorial
22669 Sequence Transformation greedy implementation Statement C Codeforces Round 686 (Div. 3) {1454} PROGRAMMING Codeforces Round #686 (Div. 3) 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
13303 Sequence and Swaps dp greedy sortings Statement D Educational Codeforces Round 99 (Rated for Div. 2) {1455} PROGRAMMING 85186
2248 Water Level brute force graphs greedy implementation math Statement E Codeforces Round 689 (Div. 2, based on Zed Code Competition) {1461} PROGRAMMING 2250.0 Codeforces Round #689 (Div. 2). Editorial
8822 The Treasure of The Segments binary search data structures greedy sortings Statement F Codeforces Round 690 (Div. 3) {1462} PROGRAMMING Codeforces Round #690 (Div. 3) Editorial
37008 Unique Number dp greedy math Statement C Codeforces Round 690 (Div. 3) {1462} PROGRAMMING Codeforces Round #690 (Div. 3) Editorial
18448 Add to Neighbour and Remove greedy math number theory Statement D Codeforces Round 690 (Div. 3) {1462} PROGRAMMING Codeforces Round #690 (Div. 3) Editorial
717 Finding satisfactory solutions dp graphs greedy math Statement H Good Bye 2020 {1466} PROGRAMMING 3500.0 Good Bye 2020 Editorial
18929 Canine poetry dp greedy strings Statement C Good Bye 2020 {1466} PROGRAMMING 1000.0 Good Bye 2020 Editorial
15326 13th Labour of Heracles greedy trees Statement D Good Bye 2020 {1466} PROGRAMMING 1000.0 Good Bye 2020 Editorial
25423 Wizard of Orz greedy math Statement A Codeforces Round 695 (Div. 2) {1467} PROGRAMMING 500.0 Codeforces Round #695 (Div. 2) Editorial 900
9258 Waste Sorting flows greedy implementation Statement N 2020-2021 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules) {1468} PROGRAMMING Tutorial (PDF)
384 Prime Divisors Selection greedy math number theory Statement L 2020-2021 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules) {1468} PROGRAMMING Tutorial (PDF)
11765 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
30893 Strange Birthday Party dp greedy sortings two pointers Statement A Codeforces Round 694 (Div. 1) {1470} PROGRAMMING 500.0 86464
20024 Strange List brute force greedy implementation math Statement B Codeforces Round 694 (Div. 2) {1471} PROGRAMMING 750.0 Codeforces Round #694 Editorial
40785 Strange Partition greedy math number theory Statement A Codeforces Round 694 (Div. 2) {1471} PROGRAMMING 500.0 Codeforces Round #694 Editorial
3330 New Year's Puzzle brute force dp graph matchings greedy sortings Statement F Codeforces Round 693 (Div. 3) {1472} PROGRAMMING Codeforces Round #693 (Div. 3) Editorial
31204 Even-Odd Game dp games greedy sortings Statement D Codeforces Round 693 (Div. 3) {1472} PROGRAMMING Codeforces Round #693 (Div. 3) Editorial
46140 Cards for Friends greedy math Statement A Codeforces Round 693 (Div. 3) {1472} PROGRAMMING Codeforces Round #693 (Div. 3) Editorial
37788 Replacing Elements greedy implementation sortings Statement A Educational Codeforces Round 102 (Rated for Div. 2) {1473} PROGRAMMING Educational Codeforces Round 102 Editorial
42853 Different Divisors binary search constructive algorithms greedy math number theory Statement B Codeforces Round 696 (Div. 2) {1474} PROGRAMMING 1000.0 Codeforces Round #696 Editorial
14373 Array Destruction constructive algorithms data structures greedy implementation sortings Statement C Codeforces Round 696 (Div. 2) {1474} PROGRAMMING 1500.0 Codeforces Round #696 Editorial
4358 Cleaning data structures dp greedy implementation Statement D Codeforces Round 696 (Div. 2) {1474} PROGRAMMING 2000.0 Codeforces Round #696 Editorial
11353 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
21828 Inflation binary search brute force greedy math Statement B Educational Codeforces Round 103 (Rated for Div. 2) {1476} PROGRAMMING 87356
45811 K-divisible Sum binary search constructive algorithms greedy math Statement A Educational Codeforces Round 103 (Rated for Div. 2) {1476} PROGRAMMING 87356
2651 Nezzar and Nice Beatmap constructive algorithms geometry greedy sortings Statement C Codeforces Round 698 (Div. 1) {1477} PROGRAMMING 1500.0 87294 2200
7539 Painting the Array I constructive algorithms data structures dp greedy implementation Statement B1 Codeforces Round 700 (Div. 1) {1479} PROGRAMMING 750.0 Editorial of Codeforces Round #700
4557 Painting the Array II data structures dp greedy implementation Statement B2 Codeforces Round 700 (Div. 1) {1479} PROGRAMMING 750.0 Editorial of Codeforces Round #700
27295 Yet Another String Game games greedy strings Statement A Codeforces Round 700 (Div. 2) {1480} PROGRAMMING 500.0 Editorial of Codeforces Round #700
18020 The Great Hero greedy implementation Statement B Codeforces Round 700 (Div. 2) {1480} PROGRAMMING 1000.0 Editorial of Codeforces Round #700
12500 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
20014 New Colony brute force greedy implementation Statement B Codeforces Round 699 (Div. 2) {1481} PROGRAMMING 750.0 Codeforces Round #699 (Div. 2) Editorial
4929 AB Graph constructive algorithms graphs greedy implementation strings Statement D Codeforces Round 699 (Div. 2) {1481} PROGRAMMING 2000.0 Codeforces Round #699 (Div. 2) Editorial
901 AB Tree dp greedy trees Statement F Codeforces Round 699 (Div. 2) {1481} PROGRAMMING 3000.0 Codeforces Round #699 (Div. 2) Editorial
25840 Space Navigation greedy implementation strings Statement A Codeforces Round 699 (Div. 2) {1481} PROGRAMMING 500.0 Codeforces Round #699 (Div. 2) Editorial
3852 Basic Diplomacy constructive algorithms flows greedy implementation Statement A Codeforces Round 709 (Div. 1, based on Technocup 2021 Final Round) {1483} PROGRAMMING 500.0 Technocup 2021: Final Round and Codeforces Round #709 — tutorial
35469 Add and Divide brute force greedy math ternary search Statement A Codeforces Round 701 (Div. 2) {1485} PROGRAMMING 500.0 Editorial of Codeforces Round #701 (Div. 2) 1000
1589 Move and Swap dp greedy trees Statement E Codeforces Round 701 (Div. 2) {1485} PROGRAMMING 2500.0 Editorial of Codeforces Round #701 (Div. 2) 2500
27286 Shifting Stacks greedy implementation Statement A Codeforces Round 703 (Div. 2) {1486} PROGRAMMING 500.0 Codeforces Round #703 (Div. 2) Editorial
15578 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
137 Painting Numbers *special data structures greedy number theory Statement G Kotlin Heroes: Episode 6 {1488} PROGRAMMING 88522
18687 Equalize the Array binary search data structures greedy math sortings Statement F Codeforces Round 702 (Div. 3) {1490} PROGRAMMING Codeforces Round #702 (Div. 3) Editorial
33267 Dense Array greedy math Statement A Codeforces Round 702 (Div. 3) {1490} PROGRAMMING Codeforces Round #702 (Div. 3) Editorial
8454 Pekora and Trampoline brute force data structures dp graphs greedy implementation Statement C Codeforces Global Round 13 {1491} PROGRAMMING 1000.0 Codeforces Global Round 13 Editorial
19120 K-th Largest Value brute force greedy implementation Statement A Codeforces Global Round 13 {1491} PROGRAMMING 500.0 Codeforces Global Round 13 Editorial
14314 Minimal Cost brute force greedy implementation math Statement B Codeforces Global Round 13 {1491} PROGRAMMING 750.0 Codeforces Global Round 13 Editorial
1326 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
17671 Maximum width data structures dp greedy two pointers Statement C Codeforces Round 704 (Div. 2) {1492} PROGRAMMING 1500.0 Codeforces Round #704 Editorial
21068 Card Deck data structures greedy math Statement B Codeforces Round 704 (Div. 2) {1492} PROGRAMMING 1000.0 Codeforces Round #704 Editorial
5006 K-beautiful Strings binary search brute force greedy implementation strings Statement C Codeforces Round 705 (Div. 2) {1493} PROGRAMMING 1750.0 Codeforces Round #705 (Div.2) Editorial
1121 Enormous XOR bitmasks greedy strings two pointers Statement E Codeforces Round 705 (Div. 2) {1493} PROGRAMMING 2750.0 Codeforces Round #705 (Div.2) Editorial
15465 Berland Crossword binary search bitmasks brute force greedy implementation Statement B Educational Codeforces Round 105 (Rated for Div. 2) {1494} PROGRAMMING Educational Codeforces Round 105 Editorial
2866 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
548 Qingshan and Daniel brute force data structures greedy implementation Statement E Codeforces Round 706 (Div. 1) {1495} PROGRAMMING 2500.0 Codeforces Round #706 Editorial
6378 Let's Go Hiking constructive algorithms games greedy implementation Statement B Codeforces Round 706 (Div. 1) {1495} PROGRAMMING 1000.0 Codeforces Round #706 Editorial
18030 Diamond Miner geometry greedy math sortings Statement A Codeforces Round 706 (Div. 1) {1495} PROGRAMMING 500.0 Codeforces Round #706 Editorial
22421 Split it! brute force constructive algorithms greedy strings Statement A Codeforces Round 706 (Div. 2) {1496} PROGRAMMING 500.0 Codeforces Round #706 Editorial
29061 M-arrays constructive algorithms greedy math Statement B Codeforces Round 708 (Div. 2) {1497} PROGRAMMING 750.0 Codeforces Round #708 Editorial 1200
9194 Square-free division (easy version) data structures dp greedy math number theory Statement E1 Codeforces Round 708 (Div. 2) {1497} PROGRAMMING 1500.0 Codeforces Round #708 Editorial 1700
1961 Square-free division (hard version) data structures dp greedy hashing math number theory Statement E2 Codeforces Round 708 (Div. 2) {1497} PROGRAMMING 1500.0 Codeforces Round #708 Editorial 2500
26426 Meximization brute force data structures greedy sortings Statement A Codeforces Round 708 (Div. 2) {1497} PROGRAMMING 500.0 Codeforces Round #708 Editorial 800
2537 Bananas in a Microwave dfs and similar dp greedy shortest paths Statement D CodeCraft-21 and Codeforces Round 711 (Div. 2) {1498} PROGRAMMING 2500.0 CodeCraft-21 and Codeforces Round #711 (Div. 2) Editorial
22142 Binary Removals brute force dp greedy implementation Statement B Educational Codeforces Round 106 (Rated for Div. 2) {1499} PROGRAMMING Educational Codeforces Round 106 Editorial
986 Matrix Sorting bitmasks constructive algorithms dfs and similar greedy hashing string suffix structures two pointers Statement C Codeforces Round 707 (Div. 1, based on Moscow Open Olympiad in Informatics) {1500} PROGRAMMING 1500.0 Codeforces Round #707 Editorial 2600
3921 Travelling Salesman Problem binary search data structures dp greedy shortest paths sortings Statement C Codeforces Round 712 (Div. 1) {1503} PROGRAMMING 1250.0 T 2200
1321 Flip the Cards 2-sat constructive algorithms data structures dsu greedy sortings Statement D Codeforces Round 712 (Div. 1) {1503} PROGRAMMING 1750.0 T 2600
27256 Flip the Bits constructive algorithms greedy implementation math Statement B Codeforces Round 712 (Div. 2) {1504} PROGRAMMING 1000.0 Codeforces Round #712 Editorial 1200
1931 Cakewalk constructive algorithms greedy implementation shortest paths Statement E April Fools Day Contest 2021 {1505} PROGRAMMING tutorial
4921 Maximize the Remaining String brute force data structures dp greedy strings two pointers Statement G Codeforces Round 710 (Div. 3) {1506} PROGRAMMING Editorial
3766 Triangular Paths constructive algorithms greedy math shortest paths sortings Statement F Codeforces Round 710 (Div. 3) {1506} PROGRAMMING Editorial
21280 Partial Replacement greedy implementation Statement B Codeforces Round 710 (Div. 3) {1506} PROGRAMMING Editorial
6732 Binary Literature constructive algorithms greedy implementation math strings two pointers Statement A Codeforces Round 715 (Div. 1) {1508} PROGRAMMING 750.0 Codeforces Round #715 Editorial
1811 Complete the MST data structures dfs and similar dsu graphs greedy math Statement C Codeforces Round 715 (Div. 1) {1508} PROGRAMMING 1500.0 Codeforces Round #715 Editorial
599 Is It Rated? greedy interactive math probabilities Statement I 2020-2021 ICPC, NERC, Northern Eurasia Onsite (Unrated, Online Mirror, ICPC Rules, Teams Preferred) {1510} PROGRAMMING nerc-2020-offline-tutorial.pdf
6891 Education binary search greedy implementation math Statement F Codeforces Round 713 (Div. 3) {1512} PROGRAMMING Codeforces Round #713 (Div. 3) Editorial
11488 Permutation by Sum greedy math Statement E Codeforces Round 713 (Div. 3) {1512} PROGRAMMING Codeforces Round #713 (Div. 3) Editorial
5088 Cut and Stick binary search data structures greedy probabilities sortings Statement D Codeforces Round 716 (Div. 2) {1514} PROGRAMMING 2000.0 Codeforces round #716 editorial
2214 Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees Statement F Codeforces Global Round 14 {1515} PROGRAMMING 3250.0 Editorial
12925 Phoenix and Socks greedy sortings two pointers Statement D Codeforces Global Round 14 {1515} PROGRAMMING 2000.0 Editorial
14266 Fillomino 2 constructive algorithms greedy implementation Statement C Contest 2050 and Codeforces Round 718 (Div. 1 + Div. 2) {1517} PROGRAMMING 1500.0 Contest 2050 and Codeforces Round #718 (Div.1 + Div.2) Editorial
13908 Morning Jogging constructive algorithms greedy sortings Statement B Contest 2050 and Codeforces Round 718 (Div. 1 + Div. 2) {1517} PROGRAMMING 1250.0 Contest 2050 and Codeforces Round #718 (Div.1 + Div.2) Editorial
27040 Sum of 2050 greedy math Statement A Contest 2050 and Codeforces Round 718 (Div. 1 + Div. 2) {1517} PROGRAMMING 500.0 Contest 2050 and Codeforces Round #718 (Div.1 + Div.2) Editorial
23578 Berland Regional brute force greedy sortings two pointers Statement C Educational Codeforces Round 108 (Rated for Div. 2) {1519} PROGRAMMING Educational Codeforces Round 108 Editorial
4384 To Go Or Not To Go? dfs and similar graphs greedy shortest paths Statement G Codeforces Round 719 (Div. 3) {1520} PROGRAMMING Editorial
30093 Arranging The Sheep dp greedy math Statement E Codeforces Round 719 (Div. 3) {1520} PROGRAMMING Editorial
768 Nastia and a Beautiful Matrix binary search constructive algorithms greedy math Statement E Codeforces Round 720 (Div. 2) {1521} PROGRAMMING 2750.0 90477
2392 Nastia Plays with a Tree constructive algorithms data structures dfs and similar dp flows graphs greedy implementation trees Statement D Codeforces Round 720 (Div. 2) {1521} PROGRAMMING 2250.0 90477
9219 Compression and Expansion brute force data structures greedy implementation trees Statement C Deltix Round, Spring 2021 (open for everyone, rated, Div. 1 + Div. 2) {1523} PROGRAMMING 1500.0 Deltix Round, Spring 2021. Editorial 1600
5068 Robot Collisions data structures greedy implementation sortings Statement C Educational Codeforces Round 109 (Rated for Div. 2) {1525} PROGRAMMING 90793
19932 Parsa's Humongous Tree brute force dfs and similar dp greedy trees Statement A Codeforces Round 722 (Div. 1) {1528} PROGRAMMING 750.0 Codeforces Round #722 Editorial
3041 Trees of Tranquillity data structures dfs and similar greedy trees Statement C Codeforces Round 722 (Div. 1) {1528} PROGRAMMING 1750.0 Codeforces Round #722 Editorial
21294 Sifid and Strange Subsequences greedy sortings Statement B Codeforces Round 722 (Div. 2) {1529} PROGRAMMING 1250.0 Codeforces Round #722 Editorial
15710 Pursuit binary search greedy sortings Statement C Codeforces Round 733 (Div. 1 + Div. 2, based on VK Cup 2021 - Elimination (Engine)) {1530} PROGRAMMING 1000.0 Codeforces Round #733 Editorial (all problems)
3398 Minimax constructive algorithms greedy implementation strings Statement E Codeforces Round 733 (Div. 1 + Div. 2, based on VK Cup 2021 - Elimination (Engine)) {1530} PROGRAMMING 2000.0 Codeforces Round #733 Editorial (all problems)
13024 Histogram Ugliness greedy implementation math Statement B Codeforces LATOKEN Round 1 (Div. 1 + Div. 2) {1534} PROGRAMMING 1000.0 Codeforces LATOKEN Round 1 (Div. 1 + Div. 2) Editorial
3149 Gold Transfer binary search data structures greedy interactive trees Statement E Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
34542 Array Reodering brute force greedy math number theory sortings Statement B Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
17997 Unstable String dp greedy implementation strings two pointers Statement C Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
5185 Omkar and Medians data structures greedy implementation Statement D Codeforces Round 724 (Div. 2) {1536} PROGRAMMING 2000.0 Codeforces Round #724 — Editorial 2000
16977 Erase and Extend (Easy Version) binary search brute force dp greedy hashing string suffix structures strings Statement E1 Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 1250.0 Codeforces Round #726 (Div.2) Editorial
6376 Erase and Extend (Hard Version) binary search data structures greedy hashing string suffix structures strings Statement E2 Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 1750.0 Codeforces Round #726 (Div.2) Editorial
44950 Bad Boy constructive algorithms greedy math Statement B Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 750.0 Codeforces Round #726 (Div.2) Editorial
30769 Challenging Cliffs greedy implementation math Statement C Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 1000.0 Codeforces Round #726 (Div.2) Editorial
41501 Arithmetic Array greedy math Statement A Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 500.0 Codeforces Round #726 (Div.2) Editorial
5429 Gift Set binary search geometry greedy math ternary search Statement G Codeforces Round 725 (Div. 3) {1538} PROGRAMMING Codeforces Round #725 (Div. 3) Editorial
33344 Stable Groups greedy sortings Statement C Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 1250.0 tutorial 1200
12894 PriceFixed binary search data structures greedy sortings two pointers Statement D Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 1500.0 tutorial 1600
1091 Strange Array data structures greedy sortings Statement F Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 2500.0 tutorial 2600
15117 Great Graphs constructive algorithms graphs greedy shortest paths sortings Statement A Codeforces Round 728 (Div. 1) {1540} PROGRAMMING 500.0 Tutorial
30869 Pretty Permutations constructive algorithms greedy implementation Statement A Codeforces Round 728 (Div. 2) {1541} PROGRAMMING 500.0 Tutorial
24688 Customising the Track combinatorics greedy math Statement B Codeforces Round 730 (Div. 2) {1543} PROGRAMMING 750.0 Codeforces Round #730 (Div. 2) Editorial
43720 Exciting Bets greedy math number theory Statement A Codeforces Round 730 (Div. 2) {1543} PROGRAMMING 500.0 Codeforces Round #730 (Div. 2) Editorial
24661 Pair Programming dp greedy two pointers Statement C Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
28100 Alphabetical Strings greedy implementation strings Statement B Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
27290 Gregor and the Pawn Game flows graphs greedy implementation Statement B Codeforces Round 736 (Div. 2) {1549} PROGRAMMING 750.0 Codeforces Round 736 Editorial
1956 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
10931 Manhattan Subarrays brute force geometry greedy implementation Statement C Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
29607 Find The Array greedy math Statement A Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
28790 Maximum Cost Deletion greedy math Statement B Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
14691 Interesting Story greedy sortings strings Statement C Codeforces Round 734 (Div. 3) {1551} PROGRAMMING Editorial for Codeforces Round #734 (Div.3)
17118 Running for Gold combinatorics graphs greedy probabilities sortings Statement B Codeforces Global Round 15 {1552} PROGRAMMING 500.0 Editorial of Global Round 15
2147 Colors and Intervals constructive algorithms data structures greedy sortings Statement E Codeforces Global Round 15 {1552} PROGRAMMING 1500.0 Editorial of Global Round 15
15285 Backspace greedy strings two pointers Statement D Harbour.Space Scholarship Contest 2021-2022 (open for everyone, rated, Div. 1 + Div. 2) {1553} PROGRAMMING 1250.0 Harbour.Space Scholarship Contest 2021-2022 (Div. 1 + Div. 2) Editorial
13957 Cobb bitmasks brute force greedy math Statement B Codeforces Round 735 (Div. 2) {1554} PROGRAMMING 1250.0 Editorial of Codeforces Round #735 (Div. 2) 1700
9896 Mikasa binary search bitmasks greedy implementation Statement C Codeforces Round 735 (Div. 2) {1554} PROGRAMMING 1750.0 Editorial of Codeforces Round #735 (Div. 2) 1800
10695 Diane constructive algorithms greedy strings Statement D Codeforces Round 735 (Div. 2) {1554} PROGRAMMING 2000.0 Editorial of Codeforces Round #735 (Div. 2) 1800
626 DIY Tree graphs greedy math Statement H Deltix Round, Summer 2021 (open for everyone, rated, Div. 1 + Div. 2) {1556} PROGRAMMING 3500.0 94384 3300
24919 Moamen and k-subarrays greedy sortings Statement B Codeforces Round 737 (Div. 2) {1557} PROGRAMMING 1000.0 Codeforces Round #737 Editorial
16541 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
3228 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
19640 Make a Power of Two greedy math strings Statement D Codeforces Round 739 (Div. 3) {1560} PROGRAMMING 94009 1300
22915 Deep Down Below binary search greedy sortings Statement C Codeforces Round 740 (Div. 2, based on VK Cup 2021 - Final (Engine)) {1561} PROGRAMMING 1250.0 Codeforces Round #740 Editorial 1300
26448 The Miracle and the Sleeper greedy math Statement A Codeforces Round 741 (Div. 2) {1562} PROGRAMMING 500.0 Editorial of Codeforces Round 741 (Div. 2)
444 Four Vertices constructive algorithms data structures graphs greedy implementation shortest paths Statement G Codeforces Global Round 16 {1566} PROGRAMMING 3000.0 Codeforces Global Round 16 Editorial
8371 Seating Arrangements (hard version) data structures greedy implementation sortings two pointers Statement D2 Codeforces Global Round 16 {1566} PROGRAMMING 1000.0 Codeforces Global Round 16 Editorial
14780 Seating Arrangements (easy version) data structures greedy sortings Statement D1 Codeforces Global Round 16 {1566} PROGRAMMING 750.0 Codeforces Global Round 16 Editorial
4482 Buds Re-hanging dfs and similar graphs greedy trees Statement E Codeforces Global Round 16 {1566} PROGRAMMING 2000.0 Codeforces Global Round 16 Editorial
25610 Median Maximization greedy math Statement A Codeforces Global Round 16 {1566} PROGRAMMING 500.0 Codeforces Global Round 16 Editorial
4952 Expression Evaluation Error constructive algorithms greedy implementation math Statement D Codeforces Round 742 (Div. 2) {1567} PROGRAMMING 1750.0 Codeforces Round #742 Editorial
294 Shooting *special greedy implementation Statement C Kotlin Heroes: Practice 8 {1570} PROGRAMMING
15685 Swaps greedy math Statement B Codeforces Round 743 (Div. 2) {1573} PROGRAMMING 1000.0 Tutorial 1400
18768 Slay the Dragon binary search greedy sortings Statement C Educational Codeforces Round 114 (Rated for Div. 2) {1574} PROGRAMMING 95188
18315 Combinatorics Homework combinatorics greedy math Statement B Educational Codeforces Round 114 (Rated for Div. 2) {1574} PROGRAMMING 95188
4909 The Strongest Build data structures dfs and similar graphs greedy hashing implementation shortest paths Statement D Educational Codeforces Round 114 (Rated for Div. 2) {1574} PROGRAMMING 95188
5431 Array Stabilization (AND version) binary search brute force graphs greedy implementation math number theory shortest paths Statement F Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
11764 Ticks brute force dp greedy implementation Statement C Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
25773 Permutation Minimization by Deque constructive algorithms greedy math Statement E1 Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
3945 Portal brute force dp greedy implementation Statement A Codeforces Round 745 (Div. 1) {1580} PROGRAMMING 500.0 Codeforces Round #745 Editorial 1700
12654 Diameter of Graph constructive algorithms graphs greedy math Statement B Codeforces Round 745 (Div. 2) {1581} PROGRAMMING 1000.0 Codeforces Round #745 Editorial 1200
4306 Pchelyonok and Segments binary search data structures dp greedy math Statement E Codeforces Round 750 (Div. 2) {1582} PROGRAMMING 2500.0 Codeforces Round #750 (Div.2) Editorial
25416 Grandma Capa Knits a Scarf data structures greedy strings two pointers Statement C Codeforces Round 750 (Div. 2) {1582} PROGRAMMING 1500.0 Codeforces Round #750 (Div.2) Editorial
1186 Strange LCS bitmasks dp graphs greedy strings Statement F Technocup 2022 - Elimination Round 2 {1584} PROGRAMMING 2500.0 Editorial for Technocup 2022 — Elimination Round 2 and Codeforces Round #755 (Div. 1, Div. 2) 2600
17901 Two Arrays greedy math sortings Statement C Technocup 2022 - Elimination Round 2 {1584} PROGRAMMING 1000.0 Editorial for Technocup 2022 — Elimination Round 2 and Codeforces Round #755 (Div. 1, Div. 2) 900
5097 Minimize Distance greedy math Statement C Codeforces Round 759 (Div. 2, based on Technocup 2022 Elimination Round 3) {1591} PROGRAMMING 1500.0 Codeforces Round #759 (Div. 2, based on Technocup 2022 Elimination Round 3) Editorial
1981 Bored Bakry bitmasks greedy math two pointers Statement E Codeforces Round 746 (Div. 2) {1592} PROGRAMMING 2500.0 95583
23989 Gamer Hemose greedy math sortings Statement A Codeforces Round 746 (Div. 2) {1592} PROGRAMMING 500.0 95583
28322 Save More Mice binary search greedy greedy Statement C Codeforces Round 748 (Div. 3) {1593} PROGRAMMING Editorial for Codeforces Round #748 (Div.3)
15197 Gardener and Tree dfs and similar greedy implementation trees Statement E Codeforces Round 748 (Div. 3) {1593} PROGRAMMING Editorial for Codeforces Round #748 (Div.3)
43476 Make it Divisible by 25 dp greedy math math Statement B Codeforces Round 748 (Div. 3) {1593} PROGRAMMING Editorial for Codeforces Round #748 (Div.3)
30354 Make Them Equal brute force greedy math strings Statement C Codeforces Round 747 (Div. 2) {1594} PROGRAMMING 1500.0 95525 1200
921 Weights constructive algorithms greedy two pointers Statement A Bubble Cup 14 - Finals Online Mirror (Unrated, ICPC Rules, Teams Preferred, Div. 1) {1599} PROGRAMMING Tutorial
2436 Array Game games greedy two pointers Statement E Bubble Cup 14 - Finals Online Mirror (Unrated, ICPC Rules, Teams Preferred, Div. 2) {1600} PROGRAMMING BubbleCup2021.pdf
2399 Optimal Insertion data structures divide and conquer greedy sortings Statement C Codeforces Round 751 (Div. 1) {1601} PROGRAMMING 2000.0 95865 2300
2059 Difficult Mountain data structures dp greedy sortings Statement D Codeforces Round 751 (Div. 1) {1601} PROGRAMMING 2250.0 95865 2700
651 Phys Ed Online data structures dp greedy trees Statement E Codeforces Round 751 (Div. 1) {1601} PROGRAMMING 2250.0 95865 2900
2345 Extreme Extension dp greedy math number theory Statement C Codeforces Round 752 (Div. 1) {1603} PROGRAMMING 1750.0 Editorial of Codeforces Round #752 2300