Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
25:33:01
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constructive algorithms

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Problems

#	Name
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x6847
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x6828
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6676
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x6674
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6461
1648B	Integral Array brute force, constructive algorithms, data structures, math	1800	x6173
482B	Interesting Array constructive algorithms, data structures, trees	1800	x6153
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6088
1304D	Shortest and Longest LIS constructive algorithms, graphs, greedy, two pointers	1800	x6067
1187C	Vasya And Array constructive algorithms, greedy, implementation	1800	x6066
1809D	Binary String Sorting constructive algorithms, greedy	1800	x5868
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5797
1208C	Magic Grid constructive algorithms	1800	x5770
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5767
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x5756
1477A	Nezzar and Board constructive algorithms, math, number theory	1800	x5660
600C	Make Palindrome constructive algorithms, greedy, strings	1800	x5626
1630B	Range and Partition binary search, constructive algorithms, data structures, greedy, two pointers	1800	x5492
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5458
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5431
1867D	Cyclic Operations brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	1800	x5305
1151C	Problem for Nazar constructive algorithms, math	1800	x5247
1583D	Omkar and the Meaning of Life constructive algorithms, greedy, interactive	1800	x5225
1833G	Ksyusha and Chinchilla constructive algorithms, dfs and similar, dp, dsu, greedy, implementation, trees	1800	x4913
1290B	Irreducible Anagrams binary search, constructive algorithms, data structures, strings, two pointers	1800	x4907
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4634
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4521
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x4421
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	1800	x4408
1286B	Numbers on Tree constructive algorithms, data structures, dfs and similar, graphs, greedy, trees	1800	x4380
894B	Ralph And His Magic Field combinatorics, constructive algorithms, math, number theory	1800	x4373
623A	Graph and String constructive algorithms, graphs	1800	x4355
1179B	Tolik and His Uncle constructive algorithms	1800	x4297
1109B	Sasha and One More Name constructive algorithms, hashing, strings	1800	x4252
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4127
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4097
1508B	Almost Sorted binary search, combinatorics, constructive algorithms, implementation	1800	x3825
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x3763
551B	ZgukistringZ brute force, constructive algorithms, implementation, strings	1800	x3759
989C	A Mist of Florescence constructive algorithms, graphs	1800	x3653
1082D	Maximum Diameter Graph constructive algorithms, graphs, implementation	1800	x3544
1196E	Connected Component on a Chessboard constructive algorithms, implementation	1800	x3503
827B	High Load constructive algorithms, greedy, implementation, trees	1800	x3435
733C	Epidemic in Monstropolis constructive algorithms, dp, greedy, two pointers	1800	x3294
663A	Rebus constructive algorithms, expression parsing, greedy, math	1800	x3245
665D	Simple Subset constructive algorithms, greedy, number theory	1800	x3196
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3075
301A	Yaroslav and Sequence constructive algorithms	1800	x3038
873D	Merge Sort constructive algorithms, divide and conquer	1800	x2993
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2863
1267L	Lexicography constructive algorithms, strings	1800	x2847
641C	Little Artem and Dance brute force, constructive algorithms, implementation	1800	x2839
610C	Harmony Analysis constructive algorithms	1800	x2782
899D	Shovel Sale constructive algorithms, math	1800	x2677
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2559
1725H	Hot Black Hot White constructive algorithms, math	1800	x2497
538D	Weird Chess brute force, constructive algorithms, implementation	1800	x2406
730B	Minimum and Maximum constructive algorithms, interactive	1800	x2375
141C	Queue constructive algorithms, greedy, sortings	1800	x2366
847C	Sum of Nestings constructive algorithms	1800	x2330
533E	Correcting Mistakes constructive algorithms, dp, greedy, hashing, strings, two pointers	1800	x2169
145B	Lucky Number 2 constructive algorithms	1800	x2148
142B	Help General constructive algorithms, greedy, implementation	1800	x2132
1090D	Similar Arrays constructive algorithms	1800	x1984
452B	4-point polyline brute force, constructive algorithms, geometry, trees	1800	x1976
727D	T-shirts Distribution constructive algorithms, flows, greedy	1800	x1796
370C	Mittens constructive algorithms, greedy, sortings	1800	x1500
238B	Boring Partition constructive algorithms	1800	x1263
883K	Road Widening constructive algorithms, greedy, implementation	1800	x1070
45J	Planting Trees constructive algorithms	1800	x884
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x317
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x12633
1375D	Replace by MEX brute force, constructive algorithms, sortings	1900	x8711
1348D	Phoenix and Science binary search, constructive algorithms, greedy, implementation, math	1900	x8479
1620E	Replace the Numbers constructive algorithms, data structures, dsu, implementation	1900	x7739
1527B2	Palindrome Game (hard version) constructive algorithms, games	1900	x7520
1365E	Maximum Subsequence Value brute force, constructive algorithms	1900	x7488
1360G	A/B Matrix constructive algorithms, greedy, math	1900	x7373
1479B1	Painting the Array I constructive algorithms, data structures, dp, greedy, implementation	1900	x6729
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6652
1656D	K-good constructive algorithms, math, number theory	1900	x6581
1467C	Three Bags constructive algorithms, greedy	1900	x6200
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6063
1508A	Binary Literature constructive algorithms, greedy, implementation, strings, two pointers	1900	x5982
1492D	Genius's Gambit bitmasks, constructive algorithms, greedy, math	1900	x5921
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x5900
1342D	Multiple Testcases binary search, constructive algorithms, data structures, greedy, sortings, two pointers	1900	x5828
1264B	Beautiful Sequence brute force, constructive algorithms, greedy	1900	x5577
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5535
1696D	Permutation Graph binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths	1900	x5163
1647D	Madoka and the Best School in Russia constructive algorithms, dp, math, number theory	1900	x5097
1475F	Unusual Matrix 2-sat, brute force, constructive algorithms	1900	x5064
1228D	Complete Tripartite brute force, constructive algorithms, graphs, hashing, implementation	1900	x4963
1439A2	Binary Table (Hard Version) constructive algorithms, graphs, greedy, implementation	1900	x4943
1213E	Two Small Strings brute force, constructive algorithms	1900	x4911
803C	Maximal GCD constructive algorithms, greedy, math	1900	x4905
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x4864
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4841
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4755
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x4745