Problemset - Codeforces

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Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)
08:03:48
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Problems

#	Name
1468G	Hobbits binary search, geometry	2500	x805
1468F	Full Turn geometry, hashing, number theory	1700	x3634
1468D	Firecrackers binary search, sortings	1700	x4526
1468B	Bakery data structures, dsu	2900	x209
1468A	LaIS data structures, dp, greedy	2200	x1624
1467E	Distinctive Roots in a Tree data structures, dfs and similar, dp, trees	2500	x1356
1467D	Sum of Paths combinatorics, dp, math	2200	x3590
1467C	Three Bags constructive algorithms, greedy	1900	x6278
1467B	Hills And Valleys brute force, implementation	1700	x10795
1466I	The Riddle of the Sphinx binary search, data structures, data structures, interactive	3400	x186
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x270
1466G	Song of the Sirens combinatorics, divide and conquer, hashing, math, string suffix structures, strings	2600	x860
1466F	Euclid's nightmare bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings	2100	x2810
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x7141
1464F	My Beautiful Madness data structures, trees	3500	x297
1463F	Max Correct Set bitmasks, dp, math	3100	x563
1463E	Plan of Lectures constructive algorithms, dfs and similar, dsu, graphs, implementation, sortings, trees	2400	x1473
1463D	Pairs binary search, constructive algorithms, greedy, two pointers	1900	x4295
1463C	Busy Robot implementation	1800	x5538
1462F	The Treasure of The Segments binary search, data structures, greedy	1800	x6801
1462E2	Close Tuples (hard version) binary search, combinatorics, implementation, math, sortings, two pointers	1700	x9437
1461F	Mathematical Expression constructive algorithms, dp, greedy	2700	x537
1461E	Water Level brute force, graphs, greedy, implementation, math	2200	x2085
1458F	Range Diameter Sum data structures, trees	3500	x268
1458E	Nim Shortcuts data structures, games	3100	x416
1458D	Flip and Reverse data structures, graphs, greedy	3100	x998
1458C	Latin Square math, matrices	2700	x1232
1458B	Glass Half Spilled dp	2000	x3436
1456E	XOR-ranges dp, greedy	3500	x275
1455G	Forbidden Value data structures, dp	2900	x400
1455F	String and Operations dp, greedy	2800	x426
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1450
1454F	Array Partition binary search, data structures, greedy, two pointers	2100	x3880
1454E	Number of Simple Paths combinatorics, dfs and similar, graphs, trees	2000	x5625
1453F	Even Harder dp	2700	x822
1453E	Dog Snacks binary search, dfs and similar, dp, greedy, trees	2300	x1992
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4111
1453C	Triangles greedy, implementation	1700	x6005
1452G	Game On Tree data structures, dfs and similar, greedy, trees	2700	x464
1452F	Divide Powers constructive algorithms, greedy	2900	x307
1452E	Two Editorials brute force, dp, greedy, sortings, two pointers	2500	x1505
1451F	Nullify The Matrix constructive algorithms, games	2700	x935
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2922
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4297
1451D	Circle Game games, geometry, math	1700	x9375
1450H2	Multithreading (Hard Version) combinatorics, implementation, math	3300	x171
1450H1	Multithreading (Easy Version) combinatorics, fft, math	2900	x383
1450G	Communism bitmasks, dp, trees	3500	x262
1450F	The Struggling Contestant constructive algorithms, greedy	2400	x1286
1450E	Capitalism constructive algorithms, dfs and similar, graphs, shortest paths	2700	x1052
1450D	Rating Compression binary search, data structures, greedy, implementation, two pointers	1800	x5366
1450C2	Errich-Tac-Toe (Hard Version) constructive algorithms, math	2300	x3575
1450C1	Errich-Tac-Toe (Easy Version) constructive algorithms, math	2100	x5367
1446F	Line Distance binary search, data structures, geometry	3200	x297
1446E	Long Recovery constructive algorithms, dfs and similar	3500	x79
1446D2	Frequency Problem (Hard Version) data structures, greedy, two pointers	3000	x1261
1446D1	Frequency Problem (Easy Version) data structures, greedy	2600	x1679
1446C	Xor Tree binary search, bitmasks, data structures, divide and conquer, dp, trees	2100	x3471
1446B	Catching Cheaters dp, strings	1800	x7697
1444E	Finding the Vertex brute force, dfs and similar, dp, interactive, trees	3500	x134
1444D	Rectangular Polyline constructive algorithms, dp, geometry	2900	x563
1444C	Team-Building data structures, dfs and similar, dsu, graphs	2500	x1553
1444B	Divide and Sum combinatorics, math, sortings	1900	x6174
1443E	Long Permutation brute force, math, two pointers	2400	x1234
1442F	Differentiating Games games, interactive	3400	x130
1442E	Black, White and Grey Tree binary search, constructive algorithms, dfs and similar, dp, greedy, trees	3000	x567
1442D	Sum data structures, divide and conquer, dp, greedy	2800	x2084
1442C	Graph Transpositions dfs and similar, graphs, greedy, shortest paths	2400	x1649
1442B	Identify the Operations combinatorics, data structures, dsu, greedy, implementation	1800	x4426
1442A	Extreme Subtraction constructive algorithms, dp, greedy	1800	x8725
1439E	Cheat and Win bitmasks, data structures, games, trees	3500	x219
1439D	INOI Final Contests combinatorics, dp, fft	3100	x353
1439C	Greedy Shopping binary search, data structures, divide and conquer, greedy, implementation	2600	x1704
1439B	Graph Subset Problem constructive algorithms, data structures, graphs	2600	x1406
1439A2	Binary Table (Hard Version) constructive algorithms, graphs, greedy, implementation	1900	x5005
1438F	Olha and Igor interactive, probabilities, trees	3000	x625
1438E	Yurii Can Do Everything binary search, bitmasks, brute force, constructive algorithms, divide and conquer, two pointers	2500	x1309
1438D	Powerful Ksenia bitmasks, constructive algorithms, math	2200	x4126
1438C	Engineer Artem 2-sat, chinese remainder theorem, constructive algorithms, fft, flows	2000	x10315
1437G	Death DBMS data structures, string suffix structures, strings, trees	2600	x965
1437F	Emotional Fishermen combinatorics, dp, math, two pointers	2600	x1187
1437E	Make It Increasing binary search, constructive algorithms, data structures, dp, implementation	2200	x3379
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x10312
1436F	Sum Over Subsets combinatorics, math, number theory	2800	x513
1436E	Complicated Computations binary search, data structures, two pointers	2400	x2209
1436D	Bandit in a City binary search, dfs and similar, graphs, greedy, trees	1900	x5973
1434E	A Convex Game dsu, games	3500	x169
1433G	Reducing Delivery Cost brute force, graphs, shortest paths	2100	x4216
1433F	Zero Remainder Sum dp	2100	x5940
1431J	Zero-XOR Array *special problem, dp	3400	x43
1431I	Cyclic Shifts *special problem, strings	2900	x44
1431H	Rogue-like Game *special problem, brute force, greedy, two pointers	2600	x66
1431G	Number Deletion Game *special problem, dp, games, greedy	2100	x179
1431F	Neural Network Problem *special problem, binary search, greedy	2100	x155
1431E	Chess Match *special problem	2000	x219
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x638
1430F	Realistic Gameplay dp, greedy	2600	x879
1430E	String Reversal data structures, greedy, strings	1900	x6367
1430D	String Deletion binary search, data structures, greedy, two pointers	1700	x8732
1428H	Rotary Laser Lock binary search, interactive	3500	x102