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Problemset

1,984 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
2014G	Milky Days brute force data structures greedy implementation	2200	1.8k
2013E	Prefix GCD brute force dp greedy math number theory	2200	4.4k
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
2010C1	Message Transmission Error (easy version) brute force strings	1400	9.4k
2009A	Minimize! brute force math	800	75.1k
2009B	osu!mania brute force implementation	800	54.2k
2008A	Sakurako's Exam brute force constructive algorithms greedy math	800	42.3k
2008B	Square or Not brute force math strings	800	33.3k
2008C	Longest Good Array binary search brute force math	800	37k
2008E	Alternating String brute force data structures dp greedy implementation strings	1500	13.8k
2008H	Sakurako's Test binary search brute force greedy math number theory	2100	3.7k
2006B	Iris and the Tree brute force data structures dfs and similar dsu math trees	1800	4.4k
2006E	Iris's Full Binary Tree brute force data structures dfs and similar trees	3100	328
2006F	Dora's Paint brute force combinatorics constructive algorithms graphs implementation	3500	173
2005D	Alter the GCD binary search brute force data structures divide and conquer implementation number theory	2400	1.3k
2004B	Game with Doors brute force greedy	1000	32.1k
2004D	Colored Portals binary search brute force data structures graphs greedy implementation shortest paths	1600	13.5k
2004E	Not a Nim Problem brute force games math number theory	2100	5.2k
2004F	Make a Palindrome binary search brute force data structures greedy math	2600	1.4k
2003E1	Turtle and Inversions (Easy Version) brute force divide and conquer dp greedy math	2600	902
2003E2	Turtle and Inversions (Hard Version) brute force data structures divide and conquer dp greedy math two pointers	2700	654
2003F	Turtle and Three Sequences brute force data structures dp greedy math probabilities two pointers	2800	838
2002C	Black Circles brute force geometry greedy math	1200	18k
2002D1	DFS Checker (Easy Version) brute force data structures dfs and similar graphs hashing trees	1900	5.2k
2002E	Cosmic Rays brute force data structures dp	2300	3k
2002F1	Court Blue (Easy Version) brute force dfs and similar dp math number theory	2600	1k
2002F2	Court Blue (Hard Version) brute force dp math number theory	2800	597
2002G	Lattice Optimizing bitmasks brute force hashing meet-in-the-middle	3400	292
2001C	Guess The Tree binary search brute force dfs and similar divide and conquer dsu greedy interactive trees	1500	13.1k
2001D	Longest Max Min Subsequence brute force constructive algorithms data structures greedy implementation	1900	6.6k
2000G	Call During the Journey binary search brute force graphs greedy shortest paths	2100	3.2k
2000H	Ksyusha and the Loaded Set binary search brute force data structures implementation	2200	2.4k
1999B	Card Game brute force constructive algorithms implementation	1000	42.6k
1998C	Perform Operations to Maximize Score binary search brute force constructive algorithms greedy implementation	1900	7.2k
1998E1	Eliminating Balls With Merging (Easy Version) binary search brute force data structures divide and conquer greedy	2200	2.3k
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
1997F	Chips on a Line brute force combinatorics dp greedy math	2700	1.3k
1996D	Fun binary search brute force combinatorics math number theory	1500	20k
1996G	Penacony brute force data structures graphs greedy hashing	2200	2.4k
1995A	Diagonals brute force greedy implementation math	800	26.6k
1995B1	Bouquet (Easy Version) binary search brute force greedy sortings two pointers	1100	21.3k
1995C	Squaring brute force constructive algorithms greedy implementation math number theory	1800	10.4k
1995D	Cases bitmasks brute force dp strings	2300	3k
1994G	Minecraft bitmasks brute force dp graphs math	2600	1.7k
1993F1	Dyn-scripted Robot (Easy Version) brute force chinese remainder theorem constructive algorithms math number theory	2400	1.2k
1992A	Only Pluses brute force constructive algorithms greedy math sortings	800	50.1k
1992E	Novice's Mistake brute force constructive algorithms implementation math strings	1700	11k
1992F	Valuable Cards brute force dp greedy number theory two pointers	1900	7.7k
1991F	Triangle Formation brute force greedy implementation math sortings	2200	2.8k
1990A	Submission Bait brute force games greedy sortings	900	27.2k
1990C	Mad MAD Sum brute force greedy math	1500	14.9k
1990D	Grid Puzzle bitmasks brute force dp greedy implementation	1800	7.9k
1990F	Polygonal Segments brute force data structures divide and conquer dp greedy two pointers	2800	464
1989B	Substring and Subsequence brute force greedy strings	1200	23.6k
1989D	Smithing Skill brute force data structures dp greedy math sortings two pointers	1900	7.2k
1988A	Split the Multiset brute force greedy implementation math	900	27.3k
1988D	The Omnipotent Monster Killer brute force dfs and similar dp trees	2000	6.1k
1988E	Range Minimum Sum binary search brute force data structures divide and conquer implementation	2300	1.9k
1987E	Wonderful Tree! brute force data structures dfs and similar dsu greedy trees	2000	4.2k
1986A	X Axis brute force geometry math sortings	800	48.6k
1986B	Matrix Stabilization brute force data structures greedy sortings	1000	30.4k
1986D	Mathematical Problem brute force dp greedy implementation math two pointers	1400	18.2k
1986G1	Permutation Problem (Simple Version) binary search brute force combinatorics data structures math number theory	2200	2k
1986G2	Permutation Problem (Hard Version) brute force data structures hashing math number theory	2500	1.5k
1985B	Maximum Multiple Sum brute force math number theory	800	57.8k
1985E	Secret Box brute force combinatorics math	1200	23.9k
1985H1	Maximize the Largest Component (Easy Version) brute force data structures dfs and similar dsu graphs implementation	1700	7.4k
1984D	''a'' String Problem brute force hashing implementation math string suffix structures strings	2000	4k
1984F	Reconstruction brute force dp math	2500	1.2k
1983C	Have Your Cake and Eat It Too binary search brute force greedy implementation	1400	14.9k
1983G	Your Loss bitmasks brute force dp trees	3000	325
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
1982E	Number of k-good subarrays bitmasks brute force combinatorics divide and conquer dp math meet-in-the-middle	2300	1.9k
1981A	Turtle and Piggy Are Playing a Game brute force greedy math	800	24.4k
1981C	Turtle and an Incomplete Sequence bitmasks brute force constructive algorithms greedy implementation math	1800	6.4k
1979A	Guess the Maximum brute force greedy implementation	800	32k
1979D	Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings	1800	8k
1979F	Kostyanych's Theorem brute force constructive algorithms graphs interactive	2900	451
1978E	Computing Machine brute force data structures dp greedy implementation	2000	4.7k
1977C	Nikita and LCM brute force data structures dp greedy math number theory sortings	1900	8.2k
1977D	XORificator bitmasks brute force greedy hashing	2300	2.4k
1975A	Bazoka and Mocha's Array brute force greedy implementation sortings	800	20.9k
1975B	378QAQ and Mocha's Array brute force greedy math sortings	1000	21.3k
1975C	Chamo and Mocha's Array binary search brute force greedy	1200	17.4k
1975D	Paint the Tree brute force dfs and similar dp greedy shortest paths trees	1700	7.6k
1975F	Set bitmasks brute force combinatorics dfs and similar divide and conquer dp math	2600	1.1k
1974F	Cutting Game binary search brute force data structures implementation sortings two pointers	1900	4.5k
1973A	Chess For Three brute force dp implementation math	900	28.9k
1973D	Cat, Fox and Maximum Array Split brute force interactive math	2400	2.3k
1973F	Maximum GCD Sum Queries bitmasks brute force dp implementation number theory	3100	345
1972A	Contest Proposal brute force greedy two pointers	800	26.2k
1971F	Circle Perimeter binary search brute force dfs and similar geometry implementation math	1600	12.7k
1970A2	Balanced Unshuffle (Medium) brute force constructive algorithms trees	2400	621
1970D1	Arithmancy (Easy) brute force constructive algorithms interactive strings	2100	967
1970G2	Min-Fund Prison (Medium) brute force dfs and similar dp graphs trees	2200	907

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