Problemset - Codeforces

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Educational Codeforces Round 175 (Rated for Div. 2)
01:26:43
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Problems

#	Name
1533H	Submatrices *special problem, bitmasks, data structures, dp		x86
1533G	Biome Map *special problem, constructive algorithms, dfs and similar, graphs		x92
1533F	Binary String Partition *special problem, binary search, greedy		x217
1533E	Chess Team Forming *special problem, binary search, data structures, greedy		x278
1533D	String Searching *special problem, hashing		x444
1533C	Sweets *special problem, data structures, implementation		x475
1533B	Nearest Point Function *special problem, implementation		x773
1533A	Travel to Bertown *special problem, implementation, math		x1081
1532F	Prefixes and Suffixes *special problem, strings		x219
1532E	Good Array *special problem		x391
1532D	Teams Forming *special problem, sortings		x588
1532C	Uniform String *special problem, implementation		x640
1532B	Frog Jumping *special problem, math		x826
1532A	A+B (Trial Problem) *special problem		x1142
1531E3	Сортировка слиянием *special problem, binary search		x269
1531E2	Сортировка слиянием special problem, special problem, brute force		x338
1531E1	Сортировка слиянием *special problem		x358
1531D	Редактируем Зингер \| color special problem, special problem		x354
1531C	Симметричный амфитеатр *special problem, constructive algorithms, dp		x651
1531B2	Мониторинг *special problem		x770
1531B1	Мониторинг special problem, special problem		x1114
1531A	Зингер \| color *special problem, implementation		x1455
1530H	Turing's Award data structures, dp	3400	x176
1530G	What a Reversal constructive algorithms	3300	x156
1530F	Bingo bitmasks, combinatorics, dp, math, probabilities	2600	x848
1530E	Minimax constructive algorithms, greedy, strings	2100	x3032
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x9482
1530C	Pursuit binary search, brute force, greedy, sortings	1200	x14915
1530B	Putting Plates constructive algorithms, implementation	800	x15911
1530A	Binary Decimal greedy, math	800	x21246
1529B	Sifid and Strange Subsequences greedy, math, sortings	1100	x20740
1529A	Eshag Loves Big Arrays constructive algorithms, greedy, math	800	x30086
1528F	AmShZ Farm combinatorics, fft, math	3300	x300
1528E	Mashtali and Hagh Trees combinatorics, dp, trees	2900	x543
1528D	It's a bird! No, it's a plane! No, it's AaParsa! constructive algorithms, graphs, shortest paths	2500	x1505
1528C	Trees of Tranquillity data structures, dfs and similar, greedy, trees	2300	x2709
1528B	Kavi on Pairing Duty combinatorics, dp, math	1700	x8939
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x15577
1527E	Partition Game binary search, data structures, divide and conquer, dp	2500	x2486
1527D	MEX Tree combinatorics, dfs and similar, implementation, math, trees	2400	x1961
1527C	Sequence Pair Weight hashing, implementation, math	1600	x13930
1527B2	Palindrome Game (hard version) constructive algorithms, games	1900	x8135
1527B1	Palindrome Game (easy version) constructive algorithms, games	1200	x27538
1527A	And Then There Were K bitmasks	800	x36998
1526F	Median Queries constructive algorithms, interactive, probabilities	3000	x311
1526E	Oolimry and Suffix Array combinatorics, constructive algorithms, math	2400	x1117
1526D	Kill Anton brute force, constructive algorithms, data structures, math, strings	2200	x2523
1526C2	Potions (Hard Version) data structures, greedy	1600	x24124
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x23817
1526B	I Hate 1111 dp, math, number theory	1400	x32107
1526A	Mean Inequality constructive algorithms, sortings	800	x24418
1525F	Goblins And Gnomes brute force, dp, flows, graph matchings	2800	x345
1525E	Assimilation IV combinatorics, dp, math, probabilities, two pointers	2100	x2148
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x10057
1525C	Robot Collisions data structures, greedy, implementation, sortings	2000	x4563
1525B	Permutation Sort constructive algorithms, greedy	900	x25305
1525A	Potion-making math, number theory	800	x26046
1523H	Hopping Around the Array data structures, dp	3500	x386
1523G	Try Booking data structures, divide and conquer	3200	x476
1523F	Favorite Game bitmasks, dp	3300	x440
1523E	Crypto Lights combinatorics, dp, math, probabilities	2600	x1751
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2247
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8920
1523B	Lord of the Values constructive algorithms	1100	x12176
1523A	Game of Life implementation	800	x13574
1521E	Nastia and a Beautiful Matrix binary search, constructive algorithms, dp, greedy	2700	x686
1521D	Nastia Plays with a Tree constructive algorithms, data structures, dfs and similar, dp, dsu, greedy, implementation, trees	2500	x2043
1521C	Nastia and a Hidden Permutation constructive algorithms, interactive	2000	x4416
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x21817
1521A	Nastia and Nearly Good Numbers constructive algorithms, math, number theory	1000	x38591
1520G	To Go Or Not To Go? brute force, dfs and similar, graphs, greedy, implementation, shortest paths	2200	x3831
1520F2	Guess the K-th Zero (Hard version) binary search, constructive algorithms, data structures, interactive	2200	x3101
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x12503
1520E	Arranging The Sheep greedy, math	1400	x22776
1520D	Same Differences data structures, hashing, math	1200	x50735
1520C	Not Adjacent Matrix constructive algorithms	1000	x32607
1520B	Ordinary Numbers brute force, math, number theory	800	x45841
1520A	Do Not Be Distracted! brute force, implementation	800	x53673
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x516
1519E	Off by One constructive algorithms, dfs and similar, geometry, graphs, sortings, trees	2700	x838
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x15760
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x17869
1519B	The Cake Is a Lie dp, math	800	x31487
1519A	Red and Blue Beans math	800	x29353
1517H	Fly Around the World dp, geometry	3500	x77
1517G	Starry Night Camping constructive algorithms, flows, graphs	3300	x526
1517F	Reunion combinatorics, dp, trees	3200	x487
1517E	Group Photo binary search, data structures, implementation, two pointers	2500	x996
1517D	Explorer Space dp, graphs, shortest paths	1800	x8030
1517C	Fillomino 2 constructive algorithms, dfs and similar, greedy, implementation	1400	x13599
1517B	Morning Jogging constructive algorithms, greedy, sortings	1200	x13389
1517A	Sum of 2050 greedy, math	800	x25957
1516E	Baby Ehab Plays with Permutations combinatorics, dp, math	2500	x906
1516D	Cut binary search, data structures, dp, graphs, number theory, two pointers	2100	x4582
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x12290
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x20560
1516A	Tit for Tat greedy	800	x23755
1515I	Phoenix and Diamonds binary search, data structures, sortings	3400	x344
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x303
1515G	Phoenix and Odometers dfs and similar, graphs, math, number theory	2700	x1064