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Problemset

3,040 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
2027A	Rectangle Arrangement geometry implementation math	800	22.2k
2027D1	The Endspeaker (Easy Version) binary search dp graphs greedy implementation two pointers	1700	7.1k
2027D2	The Endspeaker (Hard Version) binary search data structures dp greedy implementation two pointers	2200	1.9k
2026C	Action Figures binary search brute force constructive algorithms data structures greedy implementation	1500	12.9k
2026D	Sums of Segments binary search data structures dp implementation math	1900	6.1k
2026F	Bermart Ice Cream data structures dfs and similar divide and conquer dp implementation trees	2700	413
2025C	New Game binary search brute force greedy implementation sortings two pointers	1300	19.4k
2025D	Attribute Checks brute force data structures dp implementation math two pointers	1800	8.1k
2023C	C+K+S constructive algorithms dfs and similar graphs greedy hashing implementation strings	2400	1.4k
2022A	Bus to Pénjamo constructive algorithms greedy implementation math	800	17.4k
2022C	Gerrymandering dp implementation	1800	6.8k
2022D1	Asesino (Easy Version) binary search brute force constructive algorithms implementation interactive	1900	4.1k
2021C2	Adjust The Presentation (Hard Version) constructive algorithms data structures greedy implementation sortings	1900	4.6k
2021D	Boss, Thirsty dp greedy implementation	2500	975
2021E1	Digital Village (Easy Version) brute force data structures dfs and similar dp dsu fft graphs greedy implementation math trees	2300	2k
2020C	Bitwise Balancing bitmasks hashing implementation math schedules ternary search	1400	18.7k
2019B	All Pairs Segments implementation math	1200	17.6k
2018A	Cards Partition 2-sat brute force greedy implementation math	1600	12.9k
2018B	Speedbreaker binary search data structures dp greedy implementation two pointers	1900	5.3k
2018D	Max Plus Min Plus Size data structures dp dsu greedy implementation matrices sortings	2200	2.2k
2014A	Robin Helps greedy implementation	800	46.4k
2014G	Milky Days brute force data structures greedy implementation	2200	1.8k
2013F1	Game in Tree (Easy Version) binary search brute force data structures dp games greedy implementation trees	2700	679
2010A	Alternating Sum of Numbers brute force implementation math	800	21.5k
2010B	Three Brothers brute force implementation math	800	25k
2009B	osu!mania brute force implementation	800	54.2k
2009C	The Legend of Freya the Frog implementation math	1100	33.7k
2009G3	Yunli's Subarray Queries (extreme version) data structures dp implementation	2700	554
2008E	Alternating String brute force data structures dp greedy implementation strings	1500	13.8k
2006D	Iris and Adjacent Products data structures greedy implementation math	2600	997
2006F	Dora's Paint brute force combinatorics constructive algorithms graphs implementation	3500	174
2005C	Lazy Narek dp implementation strings	1800	8.8k
2005D	Alter the GCD binary search brute force data structures divide and conquer implementation number theory	2400	1.3k
2005E1	Subtangle Game (Easy Version) dp games greedy implementation	2100	3.4k
2005E2	Subtangle Game (Hard Version) data structures dp games greedy implementation	2500	1.1k
2004A	Closest Point implementation math	800	34k
2004D	Colored Portals binary search brute force data structures graphs greedy implementation shortest paths	1600	13.5k
2003D2	Turtle and a MEX Problem (Hard Version) dfs and similar dp graphs greedy implementation math	2100	4.7k
2002A	Distanced Coloring constructive algorithms implementation math	800	21.4k
2001A	Make All Equal greedy implementation	800	33.1k
2001D	Longest Max Min Subsequence brute force constructive algorithms data structures greedy implementation	1900	6.6k
2000A	Primary Task implementation math strings	800	44.7k
2000D	Right Left Wrong greedy implementation two pointers	1200	29.6k
2000F	Color Rows and Columns dp greedy implementation math	1900	7.1k
2000H	Ksyusha and the Loaded Set binary search brute force data structures implementation	2200	2.4k
1999A	A+B Again? implementation math	800	86.7k
1999B	Card Game brute force constructive algorithms implementation	1000	42.6k
1999C	Showering greedy implementation	800	42.2k
1999D	Slavic's Exam greedy implementation strings	1100	33.2k
1999E	Triple Operations dp implementation math	1300	24.3k
1998A	Find K Distinct Points with Fixed Center constructive algorithms implementation math	800	26.3k
1998C	Perform Operations to Maximize Score binary search brute force constructive algorithms greedy implementation	1900	7.2k
1998E2	Eliminating Balls With Merging (Hard Version) binary search brute force data structures divide and conquer greedy implementation	2500	927
1997A	Strong Password brute force implementation strings	800	33.7k
1997E	Level Up binary search brute force data structures divide and conquer implementation	2200	3.9k
1996B	Scale greedy implementation	800	37.2k
1996E	Decode combinatorics data structures implementation math	1600	12.9k
1995A	Diagonals brute force greedy implementation math	800	26.6k
1995C	Squaring brute force constructive algorithms greedy implementation math number theory	1800	10.4k
1994A	Diverse Game constructive algorithms greedy implementation	800	22.5k
1993A	Question Marks greedy implementation	800	33.4k
1993C	Light Switches implementation math	1400	16.4k
1993E	Xor-Grid Problem bitmasks constructive algorithms dp implementation	2700	741
1992D	Test of Love dp greedy implementation	1200	24.5k
1992E	Novice's Mistake brute force constructive algorithms implementation math strings	1700	11k
1991A	Maximize the Last Element greedy implementation	800	24.6k
1991F	Triangle Formation brute force greedy implementation math sortings	2200	2.8k
1991G	Grid Reset constructive algorithms greedy implementation	2700	758
1990D	Grid Puzzle bitmasks brute force dp greedy implementation	1800	7.9k
1989A	Catch the Coin implementation	800	29.7k
1988A	Split the Multiset brute force greedy implementation math	900	27.3k
1988B	Make Majority greedy implementation	900	26.8k
1988E	Range Minimum Sum binary search brute force data structures divide and conquer implementation	2300	1.9k
1986D	Mathematical Problem brute force dp greedy implementation math two pointers	1400	18.2k
1985A	Creating Words implementation strings	800	74.2k
1985D	Manhattan Circle implementation math	900	42.1k
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
1984B	Large Addition implementation math	1100	21.2k
1984D	''a'' String Problem brute force hashing implementation math string suffix structures strings	2000	4k
1984G	Magic Trick II constructive algorithms implementation sortings	3200	305
1983B	Corner Twist constructive algorithms greedy implementation math	1200	18.6k
1983C	Have Your Cake and Eat It Too binary search brute force greedy implementation	1400	14.9k
1982A	Soccer greedy implementation math sortings	800	27.7k
1982B	Collatz Conjecture brute force implementation math number theory	1200	20k
1982D	Beauty of the mountains brute force data structures implementation math number theory	1700	10.2k
1981C	Turtle and an Incomplete Sequence bitmasks brute force constructive algorithms greedy implementation math	1800	6.4k
1980D	GCD-sequence greedy implementation math number theory	1400	17.7k
1980E	Permutation of Rows and Columns constructive algorithms data structures greedy hashing implementation math matrices sortings	1600	13.3k
1979A	Guess the Maximum brute force greedy implementation	800	32k
1979E	Manhattan Triangle binary search constructive algorithms data structures geometry implementation two pointers	2400	1.9k
1978C	Manhattan Permutations constructive algorithms data structures greedy implementation math	1300	18.1k
1978D	Elections data structures greedy implementation math	1600	13.9k
1978E	Computing Machine brute force data structures dp greedy implementation	2000	4.7k
1976A	Verify Password implementation sortings strings	800	32.9k
1976B	Increase/Decrease/Copy greedy implementation	1100	25.3k
1976C	Job Interview binary search dp greedy implementation two pointers	1600	12.6k
1976D	Invertible Bracket Sequences binary search combinatorics data structures divide and conquer implementation two pointers	2000	5.9k
1975A	Bazoka and Mocha's Array brute force greedy implementation sortings	800	20.9k
1975E	Chain Queries binary search data structures dfs and similar implementation trees	2100	2.9k

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