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
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8507
1569D	Inconvenient Pairs binary search, data structures, implementation, sortings, two pointers	1900	x4239
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x925
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7684
1566D1	Seating Arrangements (easy version) data structures, greedy, sortings	1100	x13746
1561C	Deep Down Below binary search, greedy, sortings	1300	x13442
1561A	Simply Strange Sort brute force, implementation, sortings	800	x16437
1560E	Polycarp and String Transformation binary search, implementation, sortings, strings	1800	x7638
1558F	Strange Sort data structures, sortings	3300	x349
1557B	Moamen and k-subarrays greedy, sortings	1100	x22773
1557A	Ezzat and Two Subsequences brute force, math, sortings	800	x27430
1555E	Boring Segments data structures, sortings, trees, two pointers	2100	x3853
1552G	A Serious Referee bitmasks, brute force, dfs and similar, sortings	3000	x446
1552F	Telepanting binary search, data structures, dp, sortings	2200	x2776
1552E	Colors and Intervals constructive algorithms, data structures, greedy, sortings	2300	x1769
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5764
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x14939
1552A	Subsequence Permutation sortings, strings	800	x23489
1551C	Interesting Story greedy, sortings, strings	1500	x12856
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x1779
1547E	Air Conditioners data structures, dp, implementation, shortest paths, sortings, two pointers	1500	x13778
1545A	AquaMoon and Strange Sort sortings	1500	x13543
1540A	Great Graphs constructive algorithms, graphs, greedy, shortest paths, sortings	1400	x13658
1539F	Strange Array data structures, greedy, sortings	2600	x835
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x11254
1539C	Stable Groups greedy, sortings	1200	x21142
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x29511
1534H	Lost Nodes constructive algorithms, dp, graphs, interactive, sortings, trees	3500	x143
1534G	A New Beginning data structures, dp, geometry, sortings	3300	x512
1532D	Teams Forming *special problem, sortings		x579
1530C	Pursuit binary search, brute force, greedy, sortings	1200	x14211
1529B	Sifid and Strange Subsequences greedy, math, sortings	1100	x20316
1526A	Mean Inequality constructive algorithms, sortings	800	x23830
1525C	Robot Collisions data structures, greedy, implementation, sortings	2000	x4323
1519E	Off by One constructive algorithms, dfs and similar, geometry, graphs, sortings, trees	2700	x799
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x15909
1517B	Morning Jogging constructive algorithms, greedy, sortings	1200	x13044
1515I	Phoenix and Diamonds binary search, data structures, sortings	3400	x224
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x211
1515D	Phoenix and Socks greedy, sortings, two pointers	1500	x11138
1514E	Baby Ehab's Hyper Apartment binary search, graphs, interactive, sortings, two pointers	2700	x580
1514D	Cut and Stick binary search, data structures, greedy, implementation, sortings	2000	x4080
1513F	Swapping Problem brute force, constructive algorithms, data structures, sortings	2500	x1196
1513E	Cost Equilibrium combinatorics, constructive algorithms, math, sortings	2300	x1408
1513D	GCD and MST constructive algorithms, dsu, graphs, greedy, number theory, sortings	2000	x5016
1508E	Tree Calendar brute force, constructive algorithms, data structures, dfs and similar, sortings, trees	3100	x325
1508D	Swap Pass constructive algorithms, geometry, sortings	3000	x524
1506F	Triangular Paths constructive algorithms, graphs, math, shortest paths, sortings	2000	x3096
1503D	Flip the Cards 2-sat, constructive algorithms, data structures, greedy, sortings, two pointers	2600	x967
1503C	Travelling Salesman Problem binary search, data structures, dp, greedy, shortest paths, sortings, two pointers	2200	x3195
1501B	Napoleon Cake dp, implementation, sortings	900	x18422
1500D	Tiles for Bathroom data structures, sortings, two pointers	2900	x410
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1835
1497A	Meximization brute force, data structures, greedy, sortings	800	x23830
1495A	Diamond Miner geometry, greedy, math, sortings	1200	x16640
1494D	Dogeforces constructive algorithms, data structures, dfs and similar, divide and conquer, dsu, greedy, sortings, trees	2300	x2487
1493D	GCD of an Array brute force, data structures, hashing, implementation, math, number theory, sortings, two pointers	2100	x4731
1490F	Equalize the Array binary search, data structures, greedy, math, sortings	1500	x15396
1487E	Cheap Dinner brute force, data structures, graphs, greedy, implementation, sortings, two pointers	2000	x4352
1487A	Arena implementation, sortings	800	x26131
1486B	Eastern Exhibition binary search, geometry, shortest paths, sortings	1500	x15184
1485F	Copy or Prefix Sum combinatorics, data structures, dp, sortings	2400	x1861
1480B	The Great Hero greedy, implementation, sortings	900	x16909
1478C	Nezzar and Symmetric Array implementation, math, sortings	1700	x9477
1477C	Nezzar and Nice Beatmap constructive algorithms, geometry, greedy, math, sortings	2200	x2199
1476G	Minimum Difference data structures, hashing, sortings, two pointers	3100	x525
1476E	Pattern Matching bitmasks, data structures, dfs and similar, graphs, hashing, sortings, strings	2300	x2238
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6383
1475E	Advertising Agency combinatorics, math, sortings	1600	x12828
1475D	Cleaning the Phone binary search, dp, sortings, two pointers	1800	x9691
1474C	Array Destruction brute force, constructive algorithms, data structures, greedy, implementation, sortings	1700	x12170
1473A	Replacing Elements greedy, implementation, math, sortings	800	x32798
1472F	New Year's Puzzle brute force, dp, graph matchings, greedy, sortings	2100	x2931
1472E	Correct Placement binary search, data structures, dp, sortings, two pointers	1700	x7697
1472D	Even-Odd Game dp, games, greedy, sortings	1200	x25981
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21168
1468D	Firecrackers binary search, sortings	1700	x4454
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
1463E	Plan of Lectures constructive algorithms, dfs and similar, dsu, graphs, implementation, sortings, trees	2400	x1436
1462E2	Close Tuples (hard version) binary search, combinatorics, implementation, math, sortings, two pointers	1700	x9186
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13164
1461D	Divide and Summarize binary search, brute force, data structures, divide and conquer, implementation, sortings	1600	x8883
1455D	Sequence and Swaps dp, greedy, sortings	1600	x11965
1452E	Two Editorials brute force, dp, greedy, sortings, two pointers	2500	x1482
1452B	Toy Blocks binary search, greedy, math, sortings	1400	x14407
1450A	Avoid Trygub constructive algorithms, sortings	800	x17470
1446A	Knapsack constructive algorithms, greedy, sortings	1300	x14872
1445A	Array Rearrangment greedy, sortings	800	x18796
1444B	Divide and Sum combinatorics, math, sortings	1900	x6025
1443C	The Delivery Dilemma binary search, greedy, sortings	1400	x14927
1443B	Saving the City dp, greedy, math, sortings	1300	x15460
1438B	Valerii Against Everyone constructive algorithms, data structures, greedy, sortings	1000	x18353
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x10081
1430B	Barrels greedy, implementation, sortings	800	x19102
1428E	Carrots for Rabbits binary search, data structures, greedy, math, sortings	2200	x3493
1427B	Chess Cheater greedy, implementation, sortings	1400	x10682
1427A	Avoiding Zero math, sortings	900	x16817
1426D	Non-zero Segments constructive algorithms, data structures, greedy, sortings	1500	x15449
1424M	Ancient Language graphs, sortings	2200	x520