Problemset - Codeforces

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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
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Problems

#	Name
1463F	Max Correct Set bitmasks, dp, math	3100	x611
1463A	Dungeon binary search, math	1100	x25745
1462E2	Close Tuples (hard version) binary search, combinatorics, implementation, math, sortings, two pointers	1700	x9856
1462E1	Close Tuples (easy version) binary search, combinatorics, math, sortings, two pointers	1500	x13891
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x16868
1462C	Unique Number brute force, greedy, math	900	x32872
1461E	Water Level brute force, graphs, greedy, implementation, math	2200	x2131
1461C	Random Events dp, math, probabilities	1500	x11342
1459B	Move and Turn dp, math	1300	x15048
1459A	Red-Blue Shuffle math, probabilities	800	x17042
1458C	Latin Square math, matrices	2700	x1355
1458A	Row GCD math, number theory	1600	x18507
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1552
1455C	Ping-pong constructive algorithms, games, math	1100	x19663
1455B	Jumps constructive algorithms, math	1200	x22009
1455A	Strange Functions math, number theory	800	x26543
1454D	Number into Sequence constructive algorithms, math, number theory	1300	x20614
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4186
1452D	Radio Towers combinatorics, dp, math	1600	x8021
1452B	Toy Blocks binary search, greedy, math, sortings	1400	x14800
1452A	Robot Program math	800	x22186
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x3014
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4440
1451D	Circle Game games, geometry, math	1700	x9580
1451A	Subtract or Divide greedy, math	800	x24330
1450H2	Multithreading (Hard Version) combinatorics, implementation, math	3300	x220
1450H1	Multithreading (Easy Version) combinatorics, fft, math	2900	x440
1450C2	Errich-Tac-Toe (Hard Version) constructive algorithms, math	2300	x3734
1450C1	Errich-Tac-Toe (Easy Version) constructive algorithms, math	2100	x5537
1447B	Numbers Box greedy, math	1000	x16992
1447A	Add Candies constructive algorithms, math	800	x13843
1445B	Elimination greedy, math	900	x15384
1444B	Divide and Sum combinatorics, math, sortings	1900	x6344
1444A	Division brute force, math, number theory	1500	x13148
1443E	Long Permutation brute force, math, two pointers	2400	x1268
1443B	Saving the City dp, greedy, math, sortings	1300	x15839
1443A	Kids Seating constructive algorithms, math	800	x16252
1440B	Sum of Medians greedy, math	900	x19298
1440A	Buy the String implementation, math	800	x19796
1438D	Powerful Ksenia bitmasks, constructive algorithms, math	2200	x4221
1437F	Emotional Fishermen combinatorics, dp, math, two pointers	2600	x1320
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x10602
1437A	Marketing Scheme brute force, constructive algorithms, greedy, math	800	x18038
1436F	Sum Over Subsets combinatorics, math, number theory	2800	x528
1436B	Prime Square constructive algorithms, math	900	x20686
1436A	Reorder math	800	x22742
1433E	Two Round Dances combinatorics, math	1300	x18588
1433A	Boring Apartments implementation, math	800	x53215
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x720
1430C	Numbers on Whiteboard constructive algorithms, data structures, greedy, implementation, math	1000	x24868
1430A	Number of Apartments brute force, constructive algorithms, math	900	x20946
1428E	Carrots for Rabbits binary search, data structures, greedy, math, sortings	2200	x3716
1428A	Box is Pull math	800	x16350
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x1435
1427A	Avoiding Zero math, sortings	900	x17273
1426E	Rock, Paper, Scissors brute force, constructive algorithms, flows, greedy, math	1800	x7480
1426C	Increase and Copy binary search, constructive algorithms, math	1100	x19476
1426A	Floor Number implementation, math	800	x48630
1425D	Danger of Mad Snakes combinatorics, dp, math	2300	x846
1425C	Captain of Knights math	3100	x42
1423K	Lonely Numbers binary search, math, number theory, two pointers	1600	x4899
1423J	Bubble Cup hypothesis bitmasks, constructive algorithms, dp, math	2400	x792
1423F	Coins math	2700	x380
1422F	Boring Queries data structures, math, number theory	2700	x1046
1422C	Bargain combinatorics, dp, math	1700	x8286
1422B	Nice Matrix greedy, implementation, math	1300	x14449
1422A	Fence geometry, math	800	x21027
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4185
1421A	XORwice bitmasks, greedy, math	800	x29392
1420B	Rock and Lever bitmasks, math	1200	x26215
1420A	Cubes Sorting math, sortings	900	x23543
1419E	Decryption constructive algorithms, implementation, math, number theory	2100	x3305
1419C	Killjoy greedy, implementation, math	1500	x15477
1419B	Stairs brute force, constructive algorithms, greedy, implementation, math	1200	x16316
1418F	Equal Product data structures, math, number theory, two pointers	3000	x374
1418A	Buying Torches math	1000	x23478
1417B	Two Arrays greedy, math, sortings	1100	x14487
1417A	Copy-paste greedy, math	800	x18301
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4486
1416B	Make Them Equal constructive algorithms, greedy, math	2000	x6169
1415E	New Game Plus! constructive algorithms, greedy, math	2200	x2749
1415A	Prison Break brute force, math	800	x15208
1413E	Solo mid Oracle greedy, math, ternary search	2100	x2039
1413A	Finding Sasuke constructive algorithms, math	800	x14825
1411G	No Game No Life bitmasks, games, math, matrices	2700	x677
1411F	The Thorny Path greedy, math	3000	x376
1411E	Poman Numbers bitmasks, greedy, math, strings	2300	x1663
1409D	Decrease the Sum of Digits greedy, math	1500	x19556
1409C	Yet Another Array Restoration brute force, math, number theory	1200	x23433
1409B	Minimum Product brute force, greedy, math	1100	x29141
1409A	Yet Another Two Integers Problem greedy, math	800	x67361
1408I	Bitwise Magic dp, math	3200	x177
1408C	Discrete Acceleration binary search, dp, implementation, math, two pointers	1500	x8889
1408B	Arrays Sum constructive algorithms, greedy, math	1400	x9999
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x12169
1407B	Big Vova brute force, greedy, math, number theory	1300	x17086
1407A	Ahahahahahahahaha constructive algorithms, math	1100	x20501
1406E	Deleting Numbers interactive, math, number theory	2600	x1717
1406D	Three Sequences constructive algorithms, data structures, greedy, math	2200	x3534
1406A	Subset Mex greedy, implementation, math	900	x21572