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Problemset

11,320 problems

#	Name	Rating↕	Solved↕
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
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
1999F	Expected Median combinatorics math	1500	14.5k
1999G1	Ruler (easy version) binary search interactive	1500	15k
1999G2	Ruler (hard version) binary search interactive ternary search	1700	11.5k
1998A	Find K Distinct Points with Fixed Center constructive algorithms implementation math	800	26.3k
1998B	Minimize Equal Sum Subarrays constructive algorithms math number theory	1000	28.5k
1998C	Perform Operations to Maximize Score binary search brute force constructive algorithms greedy implementation	1900	7.2k
1998D	Determine Winning Islands in Race data structures dp graphs greedy shortest paths	2100	4.2k
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
1997B	Make Three Regions constructive algorithms two pointers	1100	23.7k
1997C	Even Positions constructive algorithms data structures greedy	1100	25.8k
1997D	Maximize the Root binary search dfs and similar dp greedy trees	1500	16.3k
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
1996A	Legs binary search math ternary search	800	58.7k
1996B	Scale greedy implementation	800	37.2k
1996C	Sort dp greedy sortings strings	1200	28.5k
1996D	Fun binary search brute force combinatorics math number theory	1500	20k
1996E	Decode combinatorics data structures implementation math	1600	12.9k
1996F	Bomb binary search greedy math	1900	6.5k
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
1995B2	Bouquet (Hard Version) binary search data structures greedy math sortings two pointers	1700	10.3k
1995C	Squaring brute force constructive algorithms greedy implementation math number theory	1800	10.4k
1995D	Cases bitmasks brute force dp strings	2300	3k
1995E1	Let Me Teach You a Lesson (Easy Version) 2-sat data structures dp matrices two pointers	2700	537
1995E2	Let Me Teach You a Lesson (Hard Version) data structures dp matrices two pointers	2900	417
1994A	Diverse Game constructive algorithms greedy implementation	800	22.5k
1994B	Fun Game bitmasks constructive algorithms greedy math	1100	19.8k
1994C	Hungry Games binary search dp two pointers	1600	14k
1994D	Funny Game constructive algorithms dsu graphs greedy math number theory trees	1900	7.7k
1994E	Wooden Game bitmasks greedy math trees	2000	5.7k
1994F	Stardew Valley constructive algorithms dfs and similar graphs trees	2500	1.6k
1994G	Minecraft bitmasks brute force dp graphs math	2600	1.7k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1993A	Question Marks greedy implementation	800	33.4k
1993B	Parity and Sum constructive algorithms greedy	1100	26.8k
1993C	Light Switches implementation math	1400	16.4k
1993D	Med-imize binary search dp greedy	2200	4.5k
1993E	Xor-Grid Problem bitmasks constructive algorithms dp implementation	2700	741
1993F1	Dyn-scripted Robot (Easy Version) brute force chinese remainder theorem constructive algorithms math number theory	2400	1.2k
1993F2	Dyn-scripted Robot (Hard Version) chinese remainder theorem math number theory	2800	579
1992A	Only Pluses brute force constructive algorithms greedy math sortings	800	50.1k
1992B	Angry Monk greedy math sortings	800	38.5k
1992C	Gorilla and Permutation constructive algorithms math	900	33.8k
1992D	Test of Love dp greedy implementation	1200	24.5k
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
1992G	Ultra-Meow combinatorics dp math	2000	4.3k
1991A	Maximize the Last Element greedy implementation	800	24.6k
1991B	AND Reconstruction bitmasks constructive algorithms greedy	1100	19.2k
1991C	Absolute Zero constructive algorithms greedy math	1300	18k
1991D	Prime XOR Coloring bitmasks constructive algorithms graphs greedy math number theory	1900	8k
1991E	Coloring Game constructive algorithms dfs and similar games graphs greedy interactive	1900	5.2k
1991F	Triangle Formation brute force greedy implementation math sortings	2200	2.8k
1991G	Grid Reset constructive algorithms greedy implementation	2700	758
1991H	Prime Split Game bitmasks dp fft games math number theory	3300	580
1991I	Grid Game constructive algorithms games graph matchings greedy interactive	3500	172
1990A	Submission Bait brute force games greedy sortings	900	27.2k
1990B	Array Craft constructive algorithms greedy	1200	20.1k
1990C	Mad MAD Sum brute force greedy math	1500	14.9k
1990D	Grid Puzzle bitmasks brute force dp greedy implementation	1800	7.9k
1990E1	Catch the Mole(Easy Version) binary search data structures dfs and similar interactive trees	2500	1.2k
1990E2	Catch the Mole(Hard Version) binary search data structures dfs and similar divide and conquer interactive trees	2600	1.2k
1990F	Polygonal Segments brute force data structures divide and conquer dp greedy two pointers	2800	464
1989A	Catch the Coin implementation	800	29.7k
1989B	Substring and Subsequence brute force greedy strings	1200	23.6k
1989C	Two Movies greedy math	1400	22.9k
1989D	Smithing Skill brute force data structures dp greedy math sortings two pointers	1900	7.2k
1989E	Distance to Different combinatorics dp math	2300	2.6k
1989F	Simultaneous Coloring dfs and similar divide and conquer graphs	3000	621
1988A	Split the Multiset brute force greedy implementation math	900	27.3k
1988B	Make Majority greedy implementation	900	26.8k
1988C	Increasing Sequence with Fixed OR bitmasks constructive algorithms greedy	1300	20.6k
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
1988F	Heartbeat combinatorics dp fft math	3000	482
1987A	Upload More RAM greedy math	800	29.3k
1987B	K-Sort greedy	1000	24.3k
1987C	Basil's Garden dp greedy	1200	21.1k
1987D	World is Mine dp games	1800	8.9k
1987E	Wonderful Tree! brute force data structures dfs and similar dsu greedy trees	2000	4.2k
1987F1	Interesting Problem (Easy Version) dp	2500	1.4k
1987F2	Interesting Problem (Hard Version) dp	2600	1.4k
1987G1	Spinning Round (Easy Version) divide and conquer dp trees	2900	361
1987G2	Spinning Round (Hard Version) divide and conquer dp trees	3500	255
1987H	Fumo Temple interactive	3500	147
1986A	X Axis brute force geometry math sortings	800	48.6k
1986B	Matrix Stabilization brute force data structures greedy sortings	1000	30.4k
1986C	Update Queries data structures greedy sortings	1100	26.3k
1986D	Mathematical Problem brute force dp greedy implementation math two pointers	1400	18.2k

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