Problemset - Codeforces

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Codeforces Round (Div. 2)
3 days
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Problems

#	Name
1425A	Arena of Greed games, greedy	1400	x6529
1424M	Ancient Language graphs, sortings	2200	x531
1424G	Years data structures, sortings	1300	x5864
1423N	BubbleSquare Tokens	3500	x151
1423M	Milutin's Plums interactive	2800	x154
1423L	Light switches meet-in-the-middle	2600	x469
1423K	Lonely Numbers binary search, math, number theory, two pointers	1600	x4842
1423J	Bubble Cup hypothesis bitmasks, constructive algorithms, dp, math	2400	x779
1423I	Lookup Tables bitmasks	3000	x106
1423H	Virus data structures, divide and conquer, dsu, graphs	2500	x524
1423G	Growing flowers data structures	3500	x214
1423F	Coins math	2700	x379
1423E	5G Antenna Towers geometry	2700	x76
1423D	Does anyone else hate the wind?	3100	x40
1423C	Dušan's Railway divide and conquer, graphs, trees	3500	x141
1423B	Valuable Paper binary search, flows, graph matchings, graphs	1900	x1808
1423A	Wakanda Forever	3500	x80
1422F	Boring Queries data structures, math, number theory	2700	x1028
1422E	Minlexes dp, greedy, implementation, strings	2700	x750
1422D	Returning Home graphs, shortest paths, sortings	2300	x2786
1422C	Bargain combinatorics, dp, math	1700	x8231
1422B	Nice Matrix greedy, implementation, math	1300	x14402
1422A	Fence geometry, math	800	x20930
1421E	Swedish Heroes brute force, dp, implementation	2700	x697
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4162
1421C	Palindromifier constructive algorithms, strings	1400	x12797
1421B	Putting Bricks in the Wall constructive algorithms, implementation	1100	x13057
1421A	XORwice bitmasks, greedy, math	800	x29050
1420E	Battle Lemmings dp, greedy	2500	x929
1420D	Rescue Nibel! combinatorics, data structures, sortings	1800	x7580
1420C2	Pokémon Army (hard version) data structures, divide and conquer, dp, greedy, implementation	2100	x4684
1420C1	Pokémon Army (easy version) constructive algorithms, dp, greedy	1300	x17582
1420B	Rock and Lever bitmasks, math	1200	x25691
1420A	Cubes Sorting math, sortings	900	x23379
1419F	Rain of Fire binary search, data structures, dfs and similar, dsu, graphs, implementation	2800	x491
1419E	Decryption constructive algorithms, implementation, math, number theory	2100	x3277
1419D2	Sage's Birthday (hard version) binary search, brute force, constructive algorithms, greedy, sortings, two pointers	1500	x15577
1419D1	Sage's Birthday (easy version) binary search, constructive algorithms, greedy, sortings	1000	x24343
1419C	Killjoy greedy, implementation, math	1500	x15373
1419B	Stairs brute force, constructive algorithms, greedy, implementation, math	1200	x16248
1419A	Digit Game games, greedy, implementation	900	x19562
1418G	Three Occurrences data structures, divide and conquer, hashing, two pointers	2500	x1930
1418F	Equal Product data structures, math, number theory, two pointers	3000	x369
1418E	Expected Damage binary search, combinatorics, probabilities	2400	x1863
1418D	Trash Problem data structures, implementation	2100	x4360
1418C	Mortal Kombat Tower dp, graphs, greedy, shortest paths	1500	x19863
1418B	Negative Prefixes greedy, sortings	1300	x16665
1418A	Buying Torches math	1000	x23044
1417B	Two Arrays greedy, math, sortings	1100	x14467
1417A	Copy-paste greedy, math	800	x18237
1416F	Showing Off flows, graph matchings, greedy, implementation	3300	x463
1416E	Split binary search, data structures, dp, greedy	3200	x293
1416D	Graph and Queries data structures, dsu, graphs, implementation, trees	2600	x2053
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4409
1416B	Make Them Equal constructive algorithms, greedy, math	2000	x6126
1416A	k-Amazing Numbers binary search, data structures, implementation, two pointers	1500	x12527
1415F	Cakes for Clones dp	2900	x485
1415E	New Game Plus! constructive algorithms, greedy, math	2200	x2719
1415D	XOR-gun bitmasks, brute force, constructive algorithms	2000	x5406
1415C	Bouncing Ball brute force, dp, implementation	1400	x10908
1415B	Repainting Street brute force, brute force, greedy	1100	x12181
1415A	Prison Break brute force, math	800	x15163
1413F	Roads and Ramen data structures, trees	2800	x777
1413E	Solo mid Oracle greedy, math, ternary search	2100	x2023
1413D	Shurikens data structures, greedy, implementation	1700	x6498
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5719
1413B	A New Technique implementation	1100	x11716
1413A	Finding Sasuke constructive algorithms, math	800	x14761
1411G	No Game No Life bitmasks, games, math, matrices	2700	x664
1411F	The Thorny Path greedy, math	3000	x374
1411E	Poman Numbers bitmasks, greedy, math, strings	2300	x1647
1411D	Grime Zoo brute force, greedy, implementation, strings	2100	x2521
1411C	Peaceful Rooks dfs and similar, dsu, graphs	1700	x7988
1411B	Fair Numbers brute force, number theory	1000	x19330
1411A	In-game Chat implementation	800	x20610
1409F	Subsequences of Length Two dp, strings	2100	x4453
1409E	Two Platforms binary search, dp, sortings, two pointers	1800	x7826
1409D	Decrease the Sum of Digits greedy, math	1500	x19395
1409C	Yet Another Array Restoration brute force, math, number theory	1200	x23299
1409B	Minimum Product brute force, greedy, math	1100	x28972
1409A	Yet Another Two Integers Problem greedy, math	800	x66200
1408I	Bitwise Magic dp, math	3200	x174
1408H	Rainbow Triples binary search, data structures, flows, greedy	3300	x400
1408G	Clusterization Counting combinatorics, dp, dsu, fft, graphs, trees	2700	x1046
1408F	Two Different constructive algorithms, divide and conquer	2300	x2370
1408E	Avoid Rainbow Cycles data structures, dsu, graphs, greedy, sortings, trees	2400	x1978
1408D	Searchlights binary search, brute force, data structures, dp, implementation, sortings, two pointers	2000	x4311
1408C	Discrete Acceleration binary search, dp, implementation, math, two pointers	1500	x8847
1408B	Arrays Sum constructive algorithms, greedy, math	1400	x9953
1408A	Circle Coloring constructive algorithms	800	x12497
1407E	Egor in the Republic of Dagestan constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths	2500	x1697
1407D	Discrete Centrifugal Jumps data structures, dp, graphs	2200	x4871
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x12041
1407B	Big Vova brute force, greedy, math, number theory	1300	x17012
1407A	Ahahahahahahahaha constructive algorithms, math	1100	x20437
1406E	Deleting Numbers interactive, math, number theory	2600	x1639
1406D	Three Sequences constructive algorithms, data structures, greedy, math	2200	x3499
1406C	Link Cut Centroids constructive algorithms, dfs and similar, graphs, trees	1700	x10278
1406B	Maximum Product brute force, dp, greedy, implementation, sortings	1200	x22631
1406A	Subset Mex greedy, implementation, math	900	x21474