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
1470E	Strange Permutation binary search, combinatorics, data structures, dp, graphs, implementation, two pointers	3200	x290
1470D	Strange Housing constructive algorithms, dfs and similar, graph matchings, graphs, greedy	2200	x3567
1470C	Strange Shuffle binary search, brute force, constructive algorithms, interactive	2500	x1302
1470B	Strange Definition bitmasks, graphs, hashing, math, number theory	1900	x6134
1470A	Strange Birthday Party binary search, dp, greedy, sortings, two pointers	1300	x21159
1469F	Power Sockets binary search, data structures, greedy	2600	x824
1469E	A Bit Similar bitmasks, brute force, hashing, string suffix structures, strings, two pointers	2400	x1848
1469D	Ceil Divisions brute force, constructive algorithms, math, number theory	1700	x9124
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x10472
1469B	Red and Blue dp, greedy	1000	x25966
1469A	Regular Bracket Sequence constructive algorithms, greedy	1000	x26434
1468N	Waste Sorting greedy, implementation	900	x7876
1468M	Similar Sets data structures, graphs, implementation	2300	x902
1468L	Prime Divisors Selection binary search, greedy, math, number theory	2700	x310
1468K	The Robot brute force, implementation	1600	x4953
1468J	Road Reform dsu, graphs, greedy	1800	x3872
1468I	Plane Tiling geometry, implementation, math	2500	x469
1468H	K and Medians constructive algorithms, greedy, math	2200	x1702
1468G	Hobbits binary search, geometry	2500	x798
1468F	Full Turn geometry, hashing, number theory	1700	x3583
1468E	Four Segments greedy	800	x8607
1468D	Firecrackers binary search, sortings	1700	x4452
1468C	Berpizza data structures, implementation	1400	x7397
1468B	Bakery data structures, dsu	2900	x198
1468A	LaIS data structures, dp, greedy	2200	x1561
1467E	Distinctive Roots in a Tree data structures, dfs and similar, dp, trees	2500	x1330
1467D	Sum of Paths combinatorics, dp, math	2200	x3537
1467C	Three Bags constructive algorithms, greedy	1900	x6198
1467B	Hills And Valleys brute force, implementation	1700	x10693
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x23830
1466I	The Riddle of the Sphinx binary search, data structures, data structures, interactive	3400	x179
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x257
1466G	Song of the Sirens combinatorics, divide and conquer, hashing, math, string suffix structures, strings	2600	x846
1466F	Euclid's nightmare bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings	2100	x2786
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x6926
1466D	13th Labour of Heracles data structures, greedy, sortings, trees	1500	x10754
1466C	Canine poetry dp, greedy, strings	1300	x17279
1466B	Last minute enhancements dp, greedy	800	x22346
1466A	Bovine Dilemma brute force, geometry, math	800	x22254
1464F	My Beautiful Madness data structures, trees	3500	x271
1463F	Max Correct Set bitmasks, dp, math	3100	x550
1463E	Plan of Lectures constructive algorithms, dfs and similar, dsu, graphs, implementation, sortings, trees	2400	x1435
1463D	Pairs binary search, constructive algorithms, greedy, two pointers	1900	x4228
1463C	Busy Robot implementation	1800	x5475
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x18691
1463A	Dungeon binary search, math	1100	x24398
1462F	The Treasure of The Segments binary search, data structures, greedy	1800	x6650
1462E2	Close Tuples (hard version) binary search, combinatorics, implementation, math, sortings, two pointers	1700	x9183
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13154
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x16179
1462C	Unique Number brute force, greedy, math	900	x31104
1462B	Last Year's Substring dp, implementation, strings	800	x26485
1462A	Favorite Sequence implementation, two pointers	800	x39776
1461F	Mathematical Expression constructive algorithms, dp, greedy	2700	x527
1461E	Water Level brute force, graphs, greedy, implementation, math	2200	x2059
1461D	Divide and Summarize binary search, brute force, data structures, divide and conquer, implementation, sortings	1600	x8882
1461C	Random Events dp, math, probabilities	1500	x10827
1461B	Find the Spruce brute force, dp, implementation	1400	x12344
1461A	String Generation constructive algorithms, greedy	800	x18383
1459B	Move and Turn dp, math	1300	x13846
1459A	Red-Blue Shuffle math, probabilities	800	x16760
1458F	Range Diameter Sum data structures, trees	3500	x258
1458E	Nim Shortcuts data structures, games	3100	x403
1458D	Flip and Reverse data structures, graphs, greedy	3100	x965
1458C	Latin Square math, matrices	2700	x1196
1458B	Glass Half Spilled dp	2000	x3369
1458A	Row GCD math, number theory	1600	x15892
1456E	XOR-ranges dp, greedy	3500	x267
1455G	Forbidden Value data structures, dp	2900	x395
1455F	String and Operations dp, greedy	2800	x416
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1424
1455D	Sequence and Swaps dp, greedy, sortings	1600	x11962
1455C	Ping-pong constructive algorithms, games, math	1100	x19204
1455B	Jumps constructive algorithms, math	1200	x21202
1455A	Strange Functions math, number theory	800	x25976
1454F	Array Partition binary search, data structures, greedy, two pointers	2100	x3788
1454E	Number of Simple Paths combinatorics, dfs and similar, graphs, trees	2000	x5493
1454D	Number into Sequence constructive algorithms, math, number theory	1300	x19675
1454C	Sequence Transformation greedy, implementation	1200	x20933
1454B	Unique Bid Auction implementation	800	x27541
1454A	Special Permutation constructive algorithms, probabilities	800	x38912
1453F	Even Harder dp	2700	x796
1453E	Dog Snacks binary search, dfs and similar, dp, greedy, trees	2300	x1961
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4071
1453C	Triangles greedy, implementation	1700	x5971
1453B	Suffix Operations constructive algorithms, implementation	1400	x13108
1453A	Cancel the Trains implementation	800	x22194
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	x1481
1452D	Radio Towers combinatorics, dp, math	1600	x7741
1452C	Two Brackets greedy	800	x18965
1452B	Toy Blocks binary search, greedy, math, sortings	1400	x14404
1452A	Robot Program math	800	x21768
1451F	Nullify The Matrix constructive algorithms, games	2700	x897
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2822
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4180
1451D	Circle Game games, geometry, math	1700	x9233
1451C	String Equality dp, greedy, hashing, implementation, strings	1400	x15184
1451B	Non-Substring Subsequence dp, greedy, implementation, strings	900	x18967