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2392 Omkar and Landslide binary search constructive algorithms greedy math Statement F Codeforces Global Round 10 {1392} PROGRAMMING 2500.0 Codeforces Global Round 10 — Editorial
9749 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
19576 Omkar and Waterslide greedy implementation Statement C Codeforces Global Round 10 {1392} PROGRAMMING 1000.0 Codeforces Global Round 10 — Editorial
11043 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
17354 Applejack and Storages data structures greedy implementation Statement B Codeforces Round 662 (Div. 2) {1393} PROGRAMMING 1000.0 Codeforces Round #662 Editorial
20827 Rainbow Dash, Fluttershy and Chess Coloring greedy math Statement A Codeforces Round 662 (Div. 2) {1393} PROGRAMMING 500.0 Codeforces Round #662 Editorial
7113 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
1222 Boboniu and Jianghu dp greedy sortings trees Statement D Codeforces Round 664 (Div. 1) {1394} PROGRAMMING 1750.0 Codeforces Round #664 Editorial 2800
16662 Multiples of Length constructive algorithms greedy number theory Statement A Codeforces Round 666 (Div. 1) {1396} PROGRAMMING 500.0 Codeforces Round #666 — Editorial
29798 Juggling Letters greedy strings Statement A Codeforces Round 666 (Div. 2) {1397} PROGRAMMING 500.0 Codeforces Round #666 — Editorial
2593 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
12524 Colored Rectangles dp graph matchings greedy sortings Statement D Educational Codeforces Round 93 (Rated for Div. 2) {1398} PROGRAMMING Educational Codeforces Round 93 Editorial
25856 Substring Removal Game games greedy sortings strings Statement B Educational Codeforces Round 93 (Rated for Div. 2) {1398} PROGRAMMING Educational Codeforces Round 93 Editorial
2517 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
6330 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
80203 Remove Smallest greedy sortings Statement A Codeforces Round 661 (Div. 3) {1399} PROGRAMMING Codeforces Round #661 (Div. 3) Editorial
18477 Binary String Reconstruction 2-sat constructive algorithms greedy strings Statement C Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
11682 RPG Protagonist binary search brute force greedy math Statement B Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
1160 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
6268 Clear the Multiset divide and conquer dp greedy sortings Statement E Educational Codeforces Round 94 (Rated for Div. 2) {1400} PROGRAMMING 81942
10505 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
21764 Ternary Sequence constructive algorithms greedy math Statement B Codeforces Round 665 (Div. 2) {1401} PROGRAMMING 1000.0 Codeforces Round #665 (Div. 2) Editorial
3805 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
24424 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
22911 Subset Mex greedy implementation math Statement A Codeforces Round 670 (Div. 2) {1406} PROGRAMMING 500.0 Codeforces Round #670 (Div. 2) Editorial
18053 Big Vova brute force greedy math number theory Statement B Codeforces Round 669 (Div. 2) {1407} PROGRAMMING 1000.0 Codeforces Round #669 Editorial
1886 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
10445 Arrays Sum constructive algorithms greedy math Statement B Grakn Forces 2020 {1408} PROGRAMMING 1000.0 Grakn Forces -- Editorial
2177 Avoid Rainbow Cycles dsu graphs greedy sortings Statement E Grakn Forces 2020 {1408} PROGRAMMING 2500.0 Grakn Forces -- Editorial
30870 Minimum Product brute force greedy math Statement B Codeforces Round 667 (Div. 3) {1409} PROGRAMMING Codeforces Round #667 (Div. 3) Editorial
21346 Decrease the Sum of Digits greedy math Statement D Codeforces Round 667 (Div. 3) {1409} PROGRAMMING Codeforces Round #667 (Div. 3) Editorial
2711 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
1816 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
434 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
6912 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
2999 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)
5031 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
6670 Make Them Equal constructive algorithms greedy math Statement B Codeforces Round 673 (Div. 1) {1416} PROGRAMMING 1000.0 Codeforces Round #673 Editorial 2000
15064 Two Arrays greedy math sortings Statement B Codeforces Round 673 (Div. 2) {1417} PROGRAMMING 1000.0 Codeforces Round #673 Editorial 1100
18719 Copy-paste greedy math Statement A Codeforces Round 673 (Div. 2) {1417} PROGRAMMING 500.0 Codeforces Round #673 Editorial 800
17508 Negative Prefixes greedy sortings Statement B Educational Codeforces Round 95 (Rated for Div. 2) {1418} PROGRAMMING Unofficial Editorial for Educational Round 95 (Div. 2)
17373 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
26362 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
16951 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
16288 Killjoy greedy implementation math Statement C Codeforces Round 671 (Div. 2) {1419} PROGRAMMING 1250.0 Codeforces Round #671 Editorial
5181 Pokémon Army (hard version) data structures divide and conquer dp greedy implementation Statement C2 Codeforces Round 672 (Div. 2) {1420} PROGRAMMING 1250.0
35183 XORwice bitmasks greedy math Statement A Codeforces Round 676 (Div. 2) {1421} PROGRAMMING 500.0 Codeforces Round #676 (Div. 2) Editorial
851 Minlexes dp greedy implementation strings Statement E Codeforces Round 675 (Div. 2) {1422} PROGRAMMING 2000.0 Codeforces Round #675 (Div. 2) Editorial
14998 Nice Matrix greedy implementation ternary search Statement B Codeforces Round 675 (Div. 2) {1422} PROGRAMMING 750.0 Codeforces Round #675 (Div. 2) Editorial
1012 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
8117 Rock, Paper, Scissors brute force constructive algorithms flows greedy math Statement E Codeforces Round 674 (Div. 3) {1426} PROGRAMMING 83120 1800
11439 Chess Cheater greedy implementation sortings Statement B Codeforces Global Round 11 {1427} PROGRAMMING 750.0 Editorial of Global Round 11 1400
398 Boring Card Game data structures greedy trees Statement F Codeforces Global Round 11 {1427} PROGRAMMING 2250.0 Editorial of Global Round 11 3200
4196 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
22627 ABBB greedy strings Statement C Codeforces Raif Round 1 (Div. 1 + Div. 2) {1428} PROGRAMMING 1000.0 Codeforces Raif Round 1 Editorial
7303 String Reversal data structures greedy strings Statement E Educational Codeforces Round 96 (Rated for Div. 2) {1430} PROGRAMMING Educational Codeforces Round 96 — Editorial
20191 Barrels greedy implementation sortings Statement B Educational Codeforces Round 96 (Rated for Div. 2) {1430} PROGRAMMING Educational Codeforces Round 96 — Editorial
9252 String Deletion greedy two pointers Statement D Educational Codeforces Round 96 (Rated for Div. 2) {1430} PROGRAMMING Educational Codeforces Round 96 — Editorial
29816 Yet Another Bookshelf greedy implementation Statement B Codeforces Round 677 (Div. 3) {1433} PROGRAMMING Codeforces Round #677 (Div. 3) Editorial
6487 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
18458 Marketing Scheme brute force constructive algorithms greedy math Statement A Educational Codeforces Round 97 (Rated for Div. 2) {1437} PROGRAMMING 84149
14334 Minimal Height Tree graphs greedy shortest paths trees Statement D Educational Codeforces Round 97 (Rated for Div. 2) {1437} PROGRAMMING 84149
1464 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
28863 Valerii Against Everyone constructive algorithms greedy sortings Statement B Codeforces Round 682 (Div. 2) {1438} PROGRAMMING 750.0 Codeforces Round #682 (Div. 2) Editorial
5393 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
30089 Sum of Medians greedy math Statement B Codeforces Round 684 (Div. 2) {1440} PROGRAMMING 1000.0 Codeforces Round #684[Div1 and Div2] Editorial
5241 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
1990 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
16749 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
16550 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
20342 Array Rearrangment greedy sortings Statement A Codeforces Round 680 (Div. 2, based on Moscow Team Olympiad) {1445} PROGRAMMING 500.0 Codeforces Round #680 Editorial
17649 Knapsack constructive algorithms greedy sortings Statement A Codeforces Round 683 (Div. 1, by Meet IT) {1446} PROGRAMMING 500.0 E
26222 Numbers Box greedy math Statement B Codeforces Round 683 (Div. 2, by Meet IT) {1447} PROGRAMMING 1000.0 Meet IT Codeforces Round Editorial
17269 String Equality dp greedy hashing implementation strings Statement C Codeforces Round 685 (Div. 2) {1451} PROGRAMMING 1250.0 Editorial — Codeforces Round #685
20178 Non-Substring Subsequence greedy implementation strings Statement B Codeforces Round 685 (Div. 2) {1451} PROGRAMMING 750.0 Editorial — Codeforces Round #685
25266 Subtract or Divide greedy math Statement A Codeforces Round 685 (Div. 2) {1451} PROGRAMMING 500.0 Editorial — Codeforces Round #685
15464 Toy Blocks binary search greedy math sortings Statement B Educational Codeforces Round 98 (Rated for Div. 2) {1452} PROGRAMMING 84847
1690 Two Editorials brute force data structures greedy implementation Statement E Educational Codeforces Round 98 (Rated for Div. 2) {1452} PROGRAMMING 84847
2217 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
4435 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
6257 Triangles greedy implementation Statement C Codeforces Round 688 (Div. 2) {1453} PROGRAMMING 1500.0 Codeforces Round #688 (Div. 2) Editorial
4644 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
22466 Sequence Transformation greedy implementation Statement C Codeforces Round 686 (Div. 3) {1454} PROGRAMMING Codeforces Round #686 (Div. 3) Editorial
1644 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
13189 Sequence and Swaps dp greedy sortings Statement D Educational Codeforces Round 99 (Rated for Div. 2) {1455} PROGRAMMING 85186
2210 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
8383 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
36381 Unique Number dp greedy math Statement C Codeforces Round 690 (Div. 3) {1462} PROGRAMMING Codeforces Round #690 (Div. 3) Editorial
18094 Add to Neighbour and Remove greedy math number theory Statement D Codeforces Round 690 (Div. 3) {1462} PROGRAMMING Codeforces Round #690 (Div. 3) Editorial
489 Finding satisfactory solutions dp graphs greedy math Statement H Good Bye 2020 {1466} PROGRAMMING 3500.0 Good Bye 2020 Editorial
18644 Canine poetry dp greedy strings Statement C Good Bye 2020 {1466} PROGRAMMING 1000.0 Good Bye 2020 Editorial
14562 13th Labour of Heracles greedy trees Statement D Good Bye 2020 {1466} PROGRAMMING 1000.0 Good Bye 2020 Editorial
25291 Wizard of Orz greedy math Statement A Codeforces Round 695 (Div. 2) {1467} PROGRAMMING 500.0 Codeforces Round #695 (Div. 2) Editorial 900
9110 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)
371 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)
11655 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
29234 Strange Birthday Party dp greedy sortings two pointers Statement A Codeforces Round 694 (Div. 1) {1470} PROGRAMMING 500.0 86464
19922 Strange List brute force greedy implementation math Statement B Codeforces Round 694 (Div. 2) {1471} PROGRAMMING 750.0 Codeforces Round #694 Editorial
37961 Strange Partition greedy math number theory Statement A Codeforces Round 694 (Div. 2) {1471} PROGRAMMING 500.0 Codeforces Round #694 Editorial
3286 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
30457 Even-Odd Game dp games greedy sortings Statement D Codeforces Round 693 (Div. 3) {1472} PROGRAMMING Codeforces Round #693 (Div. 3) Editorial
45440 Cards for Friends greedy math Statement A Codeforces Round 693 (Div. 3) {1472} PROGRAMMING Codeforces Round #693 (Div. 3) Editorial
37282 Replacing Elements greedy implementation sortings Statement A Educational Codeforces Round 102 (Rated for Div. 2) {1473} PROGRAMMING Educational Codeforces Round 102 Editorial
40056 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
14110 Array Destruction constructive algorithms data structures greedy implementation sortings Statement C Codeforces Round 696 (Div. 2) {1474} PROGRAMMING 1500.0 Codeforces Round #696 Editorial
4298 Cleaning data structures dp greedy implementation Statement D Codeforces Round 696 (Div. 2) {1474} PROGRAMMING 2000.0 Codeforces Round #696 Editorial
11172 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
21504 Inflation binary search brute force greedy math Statement B Educational Codeforces Round 103 (Rated for Div. 2) {1476} PROGRAMMING 87356
44739 K-divisible Sum binary search constructive algorithms greedy math Statement A Educational Codeforces Round 103 (Rated for Div. 2) {1476} PROGRAMMING 87356
2582 Nezzar and Nice Beatmap constructive algorithms geometry greedy sortings Statement C Codeforces Round 698 (Div. 1) {1477} PROGRAMMING 1500.0 87294 2200
7464 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
4426 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
27124 Yet Another String Game games greedy strings Statement A Codeforces Round 700 (Div. 2) {1480} PROGRAMMING 500.0 Editorial of Codeforces Round #700
17922 The Great Hero greedy implementation Statement B Codeforces Round 700 (Div. 2) {1480} PROGRAMMING 1000.0 Editorial of Codeforces Round #700
12392 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
19899 New Colony brute force greedy implementation Statement B Codeforces Round 699 (Div. 2) {1481} PROGRAMMING 750.0 Codeforces Round #699 (Div. 2) Editorial
4848 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
725 AB Tree dp greedy trees Statement F Codeforces Round 699 (Div. 2) {1481} PROGRAMMING 3000.0 Codeforces Round #699 (Div. 2) Editorial
25727 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
32793 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
1524 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
27034 Shifting Stacks greedy implementation Statement A Codeforces Round 703 (Div. 2) {1486} PROGRAMMING 500.0 Codeforces Round #703 (Div. 2) Editorial
15388 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
135 Painting Numbers *special data structures greedy number theory Statement G Kotlin Heroes: Episode 6 {1488} PROGRAMMING 88522
18300 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
32935 Dense Array greedy math Statement A Codeforces Round 702 (Div. 3) {1490} PROGRAMMING Codeforces Round #702 (Div. 3) Editorial
8388 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
18996 K-th Largest Value brute force greedy implementation Statement A Codeforces Global Round 13 {1491} PROGRAMMING 500.0 Codeforces Global Round 13 Editorial
14222 Minimal Cost brute force greedy implementation math Statement B Codeforces Global Round 13 {1491} PROGRAMMING 750.0 Codeforces Global Round 13 Editorial
1289 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
17473 Maximum width data structures dp greedy two pointers Statement C Codeforces Round 704 (Div. 2) {1492} PROGRAMMING 1500.0 Codeforces Round #704 Editorial
19929 Card Deck data structures greedy math Statement B Codeforces Round 704 (Div. 2) {1492} PROGRAMMING 1000.0 Codeforces Round #704 Editorial
4942 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
1082 Enormous XOR bitmasks greedy strings two pointers Statement E Codeforces Round 705 (Div. 2) {1493} PROGRAMMING 2750.0 Codeforces Round #705 (Div.2) Editorial
15297 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
2816 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
538 Qingshan and Daniel brute force data structures greedy implementation Statement E Codeforces Round 706 (Div. 1) {1495} PROGRAMMING 2500.0 Codeforces Round #706 Editorial
6329 Let's Go Hiking constructive algorithms games greedy implementation Statement B Codeforces Round 706 (Div. 1) {1495} PROGRAMMING 1000.0 Codeforces Round #706 Editorial
17869 Diamond Miner geometry greedy math sortings Statement A Codeforces Round 706 (Div. 1) {1495} PROGRAMMING 500.0 Codeforces Round #706 Editorial
22234 Split it! brute force constructive algorithms greedy strings Statement A Codeforces Round 706 (Div. 2) {1496} PROGRAMMING 500.0 Codeforces Round #706 Editorial
27190 M-arrays constructive algorithms greedy math Statement B Codeforces Round 708 (Div. 2) {1497} PROGRAMMING 750.0 Codeforces Round #708 Editorial 1200
9094 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
1911 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
26019 Meximization brute force data structures greedy sortings Statement A Codeforces Round 708 (Div. 2) {1497} PROGRAMMING 500.0 Codeforces Round #708 Editorial 800
2501 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
21984 Binary Removals brute force dp greedy implementation Statement B Educational Codeforces Round 106 (Rated for Div. 2) {1499} PROGRAMMING Educational Codeforces Round 106 Editorial
912 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
3840 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
1255 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
25556 Flip the Bits constructive algorithms greedy implementation math Statement B Codeforces Round 712 (Div. 2) {1504} PROGRAMMING 1000.0 Codeforces Round #712 Editorial 1200
1922 Cakewalk constructive algorithms greedy implementation shortest paths Statement E April Fools Day Contest 2021 {1505} PROGRAMMING tutorial
4829 Maximize the Remaining String brute force data structures dp greedy strings two pointers Statement G Codeforces Round 710 (Div. 3) {1506} PROGRAMMING Editorial
3692 Triangular Paths constructive algorithms greedy math shortest paths sortings Statement F Codeforces Round 710 (Div. 3) {1506} PROGRAMMING Editorial
21112 Partial Replacement greedy implementation Statement B Codeforces Round 710 (Div. 3) {1506} PROGRAMMING Editorial
6664 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
1723 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
584 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
6803 Education binary search greedy implementation math Statement F Codeforces Round 713 (Div. 3) {1512} PROGRAMMING Codeforces Round #713 (Div. 3) Editorial
11371 Permutation by Sum greedy math Statement E Codeforces Round 713 (Div. 3) {1512} PROGRAMMING Codeforces Round #713 (Div. 3) Editorial
4807 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
2070 Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees Statement F Codeforces Global Round 14 {1515} PROGRAMMING 3250.0 Editorial
12799 Phoenix and Socks greedy sortings two pointers Statement D Codeforces Global Round 14 {1515} PROGRAMMING 2000.0 Editorial
14161 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
13822 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
26872 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
22295 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
4212 To Go Or Not To Go? dfs and similar graphs greedy shortest paths Statement G Codeforces Round 719 (Div. 3) {1520} PROGRAMMING Editorial
28446 Arranging The Sheep dp greedy math Statement E Codeforces Round 719 (Div. 3) {1520} PROGRAMMING Editorial
729 Nastia and a Beautiful Matrix binary search constructive algorithms greedy math Statement E Codeforces Round 720 (Div. 2) {1521} PROGRAMMING 2750.0 90477
2290 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
9160 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
4811 Robot Collisions data structures greedy implementation sortings Statement C Educational Codeforces Round 109 (Rated for Div. 2) {1525} PROGRAMMING 90793
18875 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
2942 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
21204 Sifid and Strange Subsequences greedy sortings Statement B Codeforces Round 722 (Div. 2) {1529} PROGRAMMING 1250.0 Codeforces Round #722 Editorial
15547 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)
3251 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)
12863 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
3060 Gold Transfer binary search data structures greedy interactive trees Statement E Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
34138 Array Reodering brute force greedy math number theory sortings Statement B Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
17705 Unstable String dp greedy implementation strings two pointers Statement C Educational Codeforces Round 110 (Rated for Div. 2) {1535} PROGRAMMING 91481
5048 Omkar and Medians data structures greedy implementation Statement D Codeforces Round 724 (Div. 2) {1536} PROGRAMMING 2000.0 Codeforces Round #724 — Editorial 2000
16242 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
6135 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
42055 Bad Boy constructive algorithms greedy math Statement B Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 750.0 Codeforces Round #726 (Div.2) Editorial
30235 Challenging Cliffs greedy implementation math Statement C Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 1000.0 Codeforces Round #726 (Div.2) Editorial
40913 Arithmetic Array greedy math Statement A Codeforces Round 726 (Div. 2) {1537} PROGRAMMING 500.0 Codeforces Round #726 (Div.2) Editorial
5194 Gift Set binary search geometry greedy math ternary search Statement G Codeforces Round 725 (Div. 3) {1538} PROGRAMMING Codeforces Round #725 (Div. 3) Editorial
31271 Stable Groups greedy sortings Statement C Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 1250.0 tutorial 1200
12705 PriceFixed binary search data structures greedy sortings two pointers Statement D Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 1500.0 tutorial 1600
983 Strange Array data structures greedy sortings Statement F Codeforces Round 727 (Div. 2) {1539} PROGRAMMING 2500.0 tutorial 2600
14963 Great Graphs constructive algorithms graphs greedy shortest paths sortings Statement A Codeforces Round 728 (Div. 1) {1540} PROGRAMMING 500.0 Tutorial
30693 Pretty Permutations constructive algorithms greedy implementation Statement A Codeforces Round 728 (Div. 2) {1541} PROGRAMMING 500.0 Tutorial
24458 Customising the Track combinatorics greedy math Statement B Codeforces Round 730 (Div. 2) {1543} PROGRAMMING 750.0 Codeforces Round #730 (Div. 2) Editorial
40654 Exciting Bets greedy math number theory Statement A Codeforces Round 730 (Div. 2) {1543} PROGRAMMING 500.0 Codeforces Round #730 (Div. 2) Editorial
24386 Pair Programming dp greedy two pointers Statement C Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
27868 Alphabetical Strings greedy implementation strings Statement B Codeforces Round 731 (Div. 3) {1547} PROGRAMMING Codeforces Round #731 (Div. 3) Editorial
26635 Gregor and the Pawn Game flows graphs greedy implementation Statement B Codeforces Round 736 (Div. 2) {1549} PROGRAMMING 750.0 Codeforces Round 736 Editorial
1835 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
10843 Manhattan Subarrays brute force geometry greedy implementation Statement C Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
29437 Find The Array greedy math Statement A Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
28531 Maximum Cost Deletion greedy math Statement B Educational Codeforces Round 111 (Rated for Div. 2) {1550} PROGRAMMING Educational Codeforces Round 111 Editorial
14494 Interesting Story greedy sortings strings Statement C Codeforces Round 734 (Div. 3) {1551} PROGRAMMING Editorial for Codeforces Round #734 (Div.3)
16897 Running for Gold combinatorics graphs greedy probabilities sortings Statement B Codeforces Global Round 15 {1552} PROGRAMMING 500.0 Editorial of Global Round 15
2122 Colors and Intervals constructive algorithms data structures greedy sortings Statement E Codeforces Global Round 15 {1552} PROGRAMMING 1500.0 Editorial of Global Round 15
15073 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
13779 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
9672 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
10547 Diane constructive algorithms greedy strings Statement D Codeforces Round 735 (Div. 2) {1554} PROGRAMMING 2000.0 Editorial of Codeforces Round #735 (Div. 2) 1800
446 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
24583 Moamen and k-subarrays greedy sortings Statement B Codeforces Round 737 (Div. 2) {1557} PROGRAMMING 1000.0 Codeforces Round #737 Editorial
15976 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
3049 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
19439 Make a Power of Two greedy math strings Statement D Codeforces Round 739 (Div. 3) {1560} PROGRAMMING 94009 1300
21241 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
26351 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)
383 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
8328 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
14706 Seating Arrangements (easy version) data structures greedy sortings Statement D1 Codeforces Global Round 16 {1566} PROGRAMMING 750.0 Codeforces Global Round 16 Editorial
4440 Buds Re-hanging dfs and similar graphs greedy trees Statement E Codeforces Global Round 16 {1566} PROGRAMMING 2000.0 Codeforces Global Round 16 Editorial
25353 Median Maximization greedy math Statement A Codeforces Global Round 16 {1566} PROGRAMMING 500.0 Codeforces Global Round 16 Editorial
4845 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
15553 Swaps greedy math Statement B Codeforces Round 743 (Div. 2) {1573} PROGRAMMING 1000.0 Tutorial 1400
18539 Slay the Dragon binary search greedy sortings Statement C Educational Codeforces Round 114 (Rated for Div. 2) {1574} PROGRAMMING 95188
18209 Combinatorics Homework combinatorics greedy math Statement B Educational Codeforces Round 114 (Rated for Div. 2) {1574} PROGRAMMING 95188
4845 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
5339 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
11640 Ticks brute force dp greedy implementation Statement C Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
25078 Permutation Minimization by Deque constructive algorithms greedy math Statement E1 Codeforces Round 744 (Div. 3) {1579} PROGRAMMING Codeforces Round #744 (Div. 3) Editorial
3921 Portal brute force dp greedy implementation Statement A Codeforces Round 745 (Div. 1) {1580} PROGRAMMING 500.0 Codeforces Round #745 Editorial 1700
12453 Diameter of Graph constructive algorithms graphs greedy math Statement B Codeforces Round 745 (Div. 2) {1581} PROGRAMMING 1000.0 Codeforces Round #745 Editorial 1200
4197 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
23489 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
1113 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
17689 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
1918 Bored Bakry bitmasks greedy math two pointers Statement E Codeforces Round 746 (Div. 2) {1592} PROGRAMMING 2500.0 95583
23746 Gamer Hemose greedy math sortings Statement A Codeforces Round 746 (Div. 2) {1592} PROGRAMMING 500.0 95583
27835 Save More Mice binary search greedy greedy Statement C Codeforces Round 748 (Div. 3) {1593} PROGRAMMING Editorial for Codeforces Round #748 (Div.3)
14689 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)
40352 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)
28069 Make Them Equal brute force greedy math strings Statement C Codeforces Round 747 (Div. 2) {1594} PROGRAMMING 1500.0 95525 1200
859 Weights constructive algorithms greedy two pointers Statement A Bubble Cup 14 - Finals Online Mirror (Unrated, ICPC Rules, Teams Preferred, Div. 1) {1599} PROGRAMMING Tutorial
2359 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
2338 Optimal Insertion data structures divide and conquer greedy sortings Statement C Codeforces Round 751 (Div. 1) {1601} PROGRAMMING 2000.0 95865 2300
1924 Difficult Mountain data structures dp greedy sortings Statement D Codeforces Round 751 (Div. 1) {1601} PROGRAMMING 2250.0 95865 2700
595 Phys Ed Online data structures dp greedy trees Statement E Codeforces Round 751 (Div. 1) {1601} PROGRAMMING 2250.0 95865 2900
2261 Extreme Extension dp greedy math number theory Statement C Codeforces Round 752 (Div. 1) {1603} PROGRAMMING 1750.0 Editorial of Codeforces Round #752 2300