Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1472A	Cards for Friends greedy, math	800	x40741
1471B	Strange List brute force, greedy, implementation, math	1100	x19091
1471A	Strange Partition greedy, math, number theory	900	x24406
1470D	Strange Housing constructive algorithms, dfs and similar, graph matchings, graphs, greedy	2200	x3574
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21168
1469F	Power Sockets binary search, data structures, greedy	2600	x824
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x10474
1469B	Red and Blue dp, greedy	1000	x25971
1469A	Regular Bracket Sequence constructive algorithms, greedy	1000	x26440
1468N	Waste Sorting greedy, implementation	900	x7876
1468L	Prime Divisors Selection binary search, greedy, math, number theory	2700	x310
1468J	Road Reform dsu, graphs, greedy	1800	x3879
1468H	K and Medians constructive algorithms, greedy, math	2200	x1702
1468E	Four Segments greedy	800	x8608
1468A	LaIS data structures, dp, greedy	2200	x1562
1467C	Three Bags constructive algorithms, greedy	1900	x6198
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x23833
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x258
1466F	Euclid's nightmare bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings	2100	x2786
1466D	13th Labour of Heracles data structures, greedy, sortings, trees	1500	x10758
1466C	Canine poetry dp, greedy, strings	1300	x17282
1466B	Last minute enhancements dp, greedy	800	x22349
1463D	Pairs binary search, constructive algorithms, greedy, two pointers	1900	x4229
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x18693
1462F	The Treasure of The Segments binary search, data structures, greedy	1800	x6656
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x16185
1462C	Unique Number brute force, greedy, math	900	x31126
1461F	Mathematical Expression constructive algorithms, dp, greedy	2700	x528
1461E	Water Level brute force, graphs, greedy, implementation, math	2200	x2059
1461A	String Generation constructive algorithms, greedy	800	x18384
1458D	Flip and Reverse data structures, graphs, greedy	3100	x967
1456E	XOR-ranges dp, greedy	3500	x267
1455F	String and Operations dp, greedy	2800	x417
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1425
1455D	Sequence and Swaps dp, greedy, sortings	1600	x11966
1454F	Array Partition binary search, data structures, greedy, two pointers	2100	x3791
1454C	Sequence Transformation greedy, implementation	1200	x20936
1453E	Dog Snacks binary search, dfs and similar, dp, greedy, trees	2300	x1964
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4072
1453C	Triangles greedy, implementation	1700	x5971
1452G	Game On Tree data structures, dfs and similar, greedy, trees	2700	x451
1452F	Divide Powers constructive algorithms, greedy	2900	x297
1452E	Two Editorials brute force, dp, greedy, sortings, two pointers	2500	x1482
1452C	Two Brackets greedy	800	x18969
1452B	Toy Blocks binary search, greedy, math, sortings	1400	x14407
1451C	String Equality dp, greedy, hashing, implementation, strings	1400	x15186
1451B	Non-Substring Subsequence dp, greedy, implementation, strings	900	x18969
1451A	Subtract or Divide greedy, math	800	x23897
1450F	The Struggling Contestant constructive algorithms, greedy	2400	x1266
1450D	Rating Compression binary search, data structures, greedy, implementation, two pointers	1800	x5300
1450B	Balls of Steel brute force, geometry, greedy	1000	x14860
1447B	Numbers Box greedy, math	1000	x15102
1446D2	Frequency Problem (Hard Version) data structures, greedy, two pointers	3000	x1213
1446D1	Frequency Problem (Easy Version) data structures, greedy	2600	x1602
1446A	Knapsack constructive algorithms, greedy, sortings	1300	x14872
1445B	Elimination greedy, math	900	x15021
1445A	Array Rearrangment greedy, sortings	800	x18796
1443C	The Delivery Dilemma binary search, greedy, sortings	1400	x14927
1443B	Saving the City dp, greedy, math, sortings	1300	x15460
1442E	Black, White and Grey Tree binary search, constructive algorithms, dfs and similar, dp, greedy, trees	3000	x551
1442D	Sum data structures, divide and conquer, dp, greedy	2800	x1919
1442C	Graph Transpositions dfs and similar, graphs, greedy, shortest paths	2400	x1577
1442B	Identify the Operations combinatorics, data structures, dsu, greedy, implementation	1800	x4295
1442A	Extreme Subtraction constructive algorithms, dp, greedy	1800	x8549
1440B	Sum of Medians greedy, math	900	x17267
1439C	Greedy Shopping binary search, data structures, divide and conquer, greedy, implementation	2600	x1674
1439A2	Binary Table (Hard Version) constructive algorithms, graphs, greedy, implementation	1900	x4942
1438B	Valerii Against Everyone constructive algorithms, data structures, greedy, sortings	1000	x18354
1437D	Minimal Height Tree graphs, greedy, shortest paths, trees	1600	x12279
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x10081
1437B	Reverse Binary Strings constructive algorithms, greedy	1200	x18648
1437A	Marketing Scheme brute force, constructive algorithms, greedy, math	800	x17813
1436D	Bandit in a City binary search, dfs and similar, graphs, greedy, trees	1900	x5828
1433C	Dominant Piranha constructive algorithms, greedy	900	x26316
1433B	Yet Another Bookshelf greedy, implementation	800	x27944
1431H	Rogue-like Game *special problem, brute force, greedy, two pointers	2600	x64
1431G	Number Deletion Game *special problem, dp, games, greedy	2100	x137
1431F	Neural Network Problem *special problem, binary search, greedy	2100	x152
1431D	Used Markers *special problem, greedy	1500	x446
1430F	Realistic Gameplay dp, greedy	2600	x855
1430E	String Reversal data structures, greedy, strings	1900	x6145
1430D	String Deletion binary search, data structures, greedy, two pointers	1700	x8657
1430C	Numbers on Whiteboard constructive algorithms, data structures, greedy, implementation, math	1000	x23270
1430B	Barrels greedy, implementation, sortings	800	x19102
1428G2	Lucky Numbers (Hard Version) dp, greedy	3000	x603
1428G1	Lucky Numbers (Easy Version) dp, greedy	2900	x545
1428E	Carrots for Rabbits binary search, data structures, greedy, math, sortings	2200	x3494
1428D	Bouncing Boomerangs constructive algorithms, greedy, implementation	1900	x4397
1428C	ABBB brute force, data structures, greedy, strings	1100	x19608
1427F	Boring Card Game data structures, greedy, trees	3200	x302
1427B	Chess Cheater greedy, implementation, sortings	1400	x10682
1426E	Rock, Paper, Scissors brute force, constructive algorithms, flows, greedy, math	1800	x7211
1426D	Non-zero Segments constructive algorithms, data structures, greedy, sortings	1500	x15449
1425E	Excitation of Atoms greedy, implementation	2200	x905
1425A	Arena of Greed games, greedy	1400	x6328
1422E	Minlexes dp, greedy, implementation, strings	2700	x728
1422B	Nice Matrix greedy, implementation, math	1300	x14168
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4046
1421A	XORwice bitmasks, greedy, math	800	x27093
1420E	Battle Lemmings dp, greedy	2500	x839