Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
42:41:48
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constructive algorithms

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Problems

#	Name
1714F	Build a Tree and That Is It constructive algorithms, implementation, trees	1900	x3056
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	1900	x3102
708B	Recover the String constructive algorithms, greedy, implementation, math	1900	x3193
1784B	Letter Exchange constructive algorithms	1900	x3203
550D	Regular Bridge constructive algorithms, graphs, implementation	1900	x3239
582B	Once Again... constructive algorithms, dp, matrices	1900	x3302
1738D	Permutation Addicts constructive algorithms, data structures, dfs and similar, dsu, graphs, trees	1900	x3312
1677C	Tokitsukaze and Two Colorful Tapes constructive algorithms, dfs and similar, graphs, greedy	1900	x3390
1041E	Tree Reconstruction constructive algorithms, data structures, graphs, greedy	1900	x3498
1157D	N Problems During K Days constructive algorithms, greedy, math	1900	x3602
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x3637
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x3647
1817B	Fish Graph brute force, constructive algorithms, dfs and similar, graphs	1900	x3814
1659D	Reverse Sort Sum constructive algorithms, data structures, greedy, implementation, math, two pointers	1900	x3860
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x3901
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x3907
862C	Mahmoud and Ehab and the xor constructive algorithms	1900	x3929
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4046
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4072
1178E	Archaeology brute force, constructive algorithms, greedy, strings	1900	x4116
1237C2	Balanced Removals (Harder) binary search, constructive algorithms, divide and conquer, greedy, implementation, sortings	1900	x4127
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x4205
1463D	Pairs binary search, constructive algorithms, greedy, two pointers	1900	x4232
1717D	Madoka and The Corruption Scheme combinatorics, constructive algorithms, greedy, math	1900	x4244
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x4251
894C	Marco and GCD Sequence constructive algorithms, math	1900	x4277
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4312
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4361
1428D	Bouncing Boomerangs constructive algorithms, greedy, implementation	1900	x4397
1747D	Yet Another Problem binary search, bitmasks, constructive algorithms, data structures	1900	x4465
1174D	Ehab and the Expected XOR Problem bitmasks, constructive algorithms	1900	x4592
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x4743
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4755
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4834
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x4864
803C	Maximal GCD constructive algorithms, greedy, math	1900	x4905
1213E	Two Small Strings brute force, constructive algorithms	1900	x4908
1439A2	Binary Table (Hard Version) constructive algorithms, graphs, greedy, implementation	1900	x4943
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x4963
1475F	Unusual Matrix 2-sat, brute force, constructive algorithms	1900	x5063
1647D	Madoka and the Best School in Russia constructive algorithms, dp, math, number theory	1900	x5097
1696D	Permutation Graph binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths	1900	x5163
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5532
1264B	Beautiful Sequence brute force, constructive algorithms, greedy	1900	x5576
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x5828
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x5897
1492D	Genius's Gambit bitmasks, constructive algorithms, greedy, math	1900	x5921
1508A	Binary Literature constructive algorithms, greedy, implementation, strings, two pointers	1900	x5981
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6063
1467C	Three Bags constructive algorithms, greedy	1900	x6200
1656D	K-good constructive algorithms, math, number theory	1900	x6580
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6651
1479B1	Painting the Array I constructive algorithms, data structures, dp, greedy, implementation	1900	x6728
1360G	A/B Matrix constructive algorithms, greedy, math	1900	x7371
1365E	Maximum Subsequence Value brute force, constructive algorithms	1900	x7486
1527B2	Palindrome Game (hard version) constructive algorithms, games	1900	x7518
1620E	Replace the Numbers constructive algorithms, data structures, dsu, implementation	1900	x7738
1348D	Phoenix and Science binary search, constructive algorithms, greedy, implementation, math	1900	x8479
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8710
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x12633
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x317
45J	Planting Trees constructive algorithms	1800	x884
883K	Road Widening constructive algorithms, greedy, implementation	1800	x1070
238B	Boring Partition constructive algorithms	1800	x1263
370C	Mittens constructive algorithms, greedy, sortings	1800	x1500
727D	T-shirts Distribution constructive algorithms, flows, greedy	1800	x1796
452B	4-point polyline brute force, constructive algorithms, geometry, trees	1800	x1976
1090D	Similar Arrays constructive algorithms	1800	x1984
142B	Help General constructive algorithms, greedy, implementation	1800	x2130
145B	Lucky Number 2 constructive algorithms	1800	x2147
533E	Correcting Mistakes constructive algorithms, dp, greedy, hashing, strings, two pointers	1800	x2169
847C	Sum of Nestings constructive algorithms	1800	x2330
141C	Queue constructive algorithms, greedy, sortings	1800	x2366
730B	Minimum and Maximum constructive algorithms, interactive	1800	x2375
538D	Weird Chess brute force, constructive algorithms, implementation	1800	x2406
1725H	Hot Black Hot White constructive algorithms, math	1800	x2496
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2558
899D	Shovel Sale constructive algorithms, math	1800	x2677
610C	Harmony Analysis constructive algorithms	1800	x2782
641C	Little Artem and Dance brute force, constructive algorithms, implementation	1800	x2839
1267L	Lexicography constructive algorithms, strings	1800	x2847
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2862
873D	Merge Sort constructive algorithms, divide and conquer	1800	x2993
301A	Yaroslav and Sequence constructive algorithms	1800	x3038
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3075
665D	Simple Subset constructive algorithms, greedy, number theory	1800	x3196
663A	Rebus constructive algorithms, expression parsing, greedy, math	1800	x3245
733C	Epidemic in Monstropolis constructive algorithms, dp, greedy, two pointers	1800	x3294
827B	High Load constructive algorithms, greedy, implementation, trees	1800	x3435
1196E	Connected Component on a Chessboard constructive algorithms, implementation	1800	x3501
1082D	Maximum Diameter Graph constructive algorithms, graphs, implementation	1800	x3544
989C	A Mist of Florescence constructive algorithms, graphs	1800	x3652
551B	ZgukistringZ brute force, constructive algorithms, implementation, strings	1800	x3759
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x3760
1508B	Almost Sorted binary search, combinatorics, constructive algorithms, implementation	1800	x3824
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4095
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4127
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4251
1179B	Tolik and His Uncle constructive algorithms	1800	x4295
623A	Graph and String constructive algorithms, graphs	1800	x4355