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Problemset

87 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2249C	Double-Rift Dial data structures dfs and similar dsu implementation two pointers	unrated	1k
2234C	Vessels, Heights and Two Versions (Easy Version) dfs and similar dsu greedy implementation two pointers	1200	12k
2234F	Vessels, Heights and Two Versions (Hard Version) data structures dfs and similar dsu greedy implementation two pointers	1900	2.3k
2222F	Building Tree data structures divide and conquer dsu graphs implementation	2600	716
2176E	Remove at the lowest cost data structures dfs and similar dp dsu greedy implementation trees	2400	1.3k
2171D	Rae Taylor and Trees (easy version) binary search data structures dp dsu greedy implementation trees	1400	12.3k
2171F	Rae Taylor and Trees (hard version) binary search constructive algorithms data structures dp dsu greedy implementation trees	1600	7.6k
2159B	Rectangles brute force data structures dp dsu greedy implementation two pointers	2100	3.4k
2158E	Sink data structures divide and conquer dsu graphs implementation	2600	665
2157E	Adjusting Drones binary search brute force data structures dp dsu greedy implementation sortings	1900	4.6k
2108C	Neo's Escape binary search brute force data structures dp dsu graphs greedy implementation	1500	15.1k
2097B	Baggage Claim combinatorics dfs and similar dp dsu graphs implementation math trees	2300	2k
2086C	Disappearing Permutation dfs and similar dp dsu graphs greedy implementation	1300	16.6k
2063F1	Counting Is Not Fun (Easy Version) combinatorics data structures dfs and similar dp dsu graphs hashing implementation math trees	2400	1.6k
2063F2	Counting Is Not Fun (Hard Version) combinatorics data structures dfs and similar dsu graphs implementation trees	2700	951
2049F	MEX OR Mania bitmasks brute force data structures dsu implementation	2700	600
2044G2	Medium Demon Problem (hard version) dfs and similar dp dsu graphs implementation trees	1900	4k
2031D	Penchick and Desert Rabbit binary search data structures dfs and similar dp dsu greedy implementation two pointers	1700	10.1k
2021E1	Digital Village (Easy Version) brute force data structures dfs and similar dp dsu fft graphs greedy implementation math trees	2300	2k
2018D	Max Plus Min Plus Size data structures dp dsu greedy implementation matrices sortings	2200	2.2k
1985H1	Maximize the Largest Component (Easy Version) brute force data structures dfs and similar dsu graphs implementation	1700	7.4k
1985H2	Maximize the Largest Component (Hard Version) data structures dfs and similar dp dsu implementation	2200	2k
1954E	Chain Reaction binary search data structures dsu greedy implementation math number theory	2200	3k
1935F	Andrey's Tree binary search constructive algorithms data structures dfs and similar dsu greedy implementation trees	2800	634
1930D2	Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings	2100	3.1k
1927F	Microcycle data structures dfs and similar dsu graphs greedy implementation sortings trees	1900	5.6k
1922D	Berserk Monsters brute force data structures dsu implementation math	1900	6.9k
1920D	Array Repetition binary search brute force dsu implementation math	1900	6.7k
1900E	Transitive Graph dfs and similar dp dsu graphs implementation	2100	2.7k
1872F	Selling a Menagerie dfs and similar dsu graphs implementation math	1800	7.7k
1851G	Vlad and the Mountains binary search data structures dsu graphs implementation sortings trees two pointers	2000	4.2k
1850H	The Third Letter dfs and similar dsu graphs greedy implementation	1700	10.2k
1847D	Professor Higashikata data structures dsu greedy implementation strings	1900	4.3k
1833G	Ksyusha and Chinchilla constructive algorithms dfs and similar dp dsu greedy implementation trees	1800	6.5k
1829E	The Lakes dfs and similar dsu graphs implementation	1100	27.7k
1804G	Flow Control data structures dsu implementation	3500	254
1799E	City Union constructive algorithms dfs and similar dsu geometry greedy implementation math	2300	1.4k
1788F	XOR, Tree, and Queries bitmasks constructive algorithms dfs and similar dsu graphs greedy implementation trees	2500	1.2k
1787D	Game on Axis combinatorics dfs and similar dsu graphs implementation	1900	3.9k
1770D	Koxia and Game constructive algorithms data structures dfs and similar dsu flows games graph matchings graphs implementation	2000	4.5k
1735C	Phase Shift dfs and similar dsu graphs greedy implementation strings	1400	11k
1687D	Cute number binary search brute force data structures dsu implementation math	2900	775
1670C	Where is the Pizza? data structures dfs and similar dsu graphs implementation math	1400	11.1k
1648E	Air Reform data structures dfs and similar divide and conquer dsu graphs implementation trees	3200	601
1620A	Equal or Not Equal constructive algorithms dsu implementation	800	23.3k
1620E	Replace the Numbers constructive algorithms data structures dsu implementation	1900	9.8k
1609D	Social Network dsu graphs greedy implementation trees	1600	8.6k
1575J	Jeopardy of Dropped Balls binary search brute force dsu implementation	1500	4.3k
1567F	One-Four Overload 2-sat constructive algorithms dfs and similar dsu graphs implementation	2700	888
1521D	Nastia Plays with a Tree constructive algorithms data structures dfs and similar dp dsu greedy implementation trees	2500	2.4k
1482D	Playlist data structures dsu implementation shortest paths	1900	4.1k
1476D	Journey dfs and similar dp dsu implementation	1700	9.3k
1463E	Plan of Lectures constructive algorithms dfs and similar dsu graphs implementation sortings trees	2400	1.8k
1442B	Identify the Operations combinatorics data structures dsu greedy implementation	1800	5.4k
1419F	Rain of Fire binary search data structures dfs and similar dsu graphs implementation	2800	632
1416D	Graph and Queries data structures dsu graphs implementation trees	2600	2.9k
1402A	Fancy Fence *special data structures dsu implementation math sortings	1800	1.4k
1385G	Columns Swaps 2-sat dfs and similar dsu graphs implementation	2300	1.9k
1380E	Merging Towers data structures dsu implementation trees	2300	2.5k
1370D	Odd-Even Subsequence binary search dp dsu greedy implementation	2000	11.2k
1365D	Solve The Maze constructive algorithms dfs and similar dsu graphs greedy implementation shortest paths	1700	21.3k
1332C	K-Complete Word dfs and similar dsu greedy implementation strings	1500	21.7k
1303F	Number of Components dsu implementation	2800	671
1292A	NEKO's Maze Game data structures dsu implementation	1400	14k
1213F	Unstable String Sort data structures dfs and similar dsu graphs greedy implementation strings	2100	3.1k
1209G1	Into Blocks (easy version) data structures dsu greedy implementation two pointers	2000	4.1k
1055B	Alice and Hairdresser dsu implementation	1300	5.6k
959B	Mahmoud and Ehab and the message dsu greedy implementation	1200	10.7k
899E	Segments Removal data structures dsu flows implementation two pointers	2000	3.6k
886C	Petya and Catacombs dsu greedy implementation trees	1300	5.7k
875B	Sorting the Coins dsu implementation sortings two pointers	1500	5.4k
843A	Sorting by Subsequences dfs and similar dsu implementation math sortings	1400	6k
763A	Timofey and a tree dfs and similar dp dsu graphs implementation trees	1600	12.1k
723D	Lakes in Berland dfs and similar dsu graphs greedy implementation	1600	7.6k
723F	st-Spanning Tree dsu graphs greedy implementation	2300	1.8k
679C	Bear and Square Grid dfs and similar dsu implementation	2400	1.3k
490B	Queue dsu implementation	1500	6.5k
441D	Valera and Swaps constructive algorithms dsu graphs implementation math string suffix structures	2100	1.3k
433D	Nanami's Digital Board dsu implementation	2000	1.3k
409H	A + B Strikes Back *special brute force constructive algorithms dsu implementation	1500	9.6k
374E	Inna and Babies binary search data structures dsu geometry implementation	2600	245
371D	Vessels data structures dsu implementation trees	1800	6.6k
358E	Dima and Kicks brute force dsu graphs implementation	2300	446
105D	Entertaining Geodetics brute force dsu implementation	2700	149
87D	Beautiful Road dfs and similar dp dsu graphs implementation sortings trees	2300	1.1k
81E	Pairs dfs and similar dp dsu graphs implementation trees	2700	460
36E	Two Paths constructive algorithms dsu graphs implementation	2600	637

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