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Problemset

11,320 problems

#	Name	Rating↕	Solved↕
2124A	Deranged Deletions greedy sortings	800	20.7k
2124B	Minimise Sum greedy	1000	22k
2124C	Subset Multiplication constructive algorithms greedy math number theory	1300	16.3k
2124D	Make a Palindrome greedy sortings two pointers	1700	9.2k
2124E	Make it Zero constructive algorithms greedy math	2100	4.9k
2124F1	Appending Permutations (Easy Version) combinatorics dp	2300	2.6k
2124F2	Appending Permutations (Hard Version) combinatorics dp	2800	858
2124G	Maximise Sum binary search data structures	3200	490
2124H	Longest Good Subsequence dp math trees	3400	232
2124I	Lexicographic Partition constructive algorithms math trees	3500	363
2123A	Blackboard Game math	800	42.4k
2123B	Tournament greedy	800	35.4k
2123C	Prefix Min and Suffix Max brute force data structures	1000	31.7k
2123D	Binary String Battle constructive algorithms games greedy	1200	22.5k
2123E	MEX Count binary search data structures greedy sortings two pointers	1400	15.3k
2123F	Minimize Fixed Points constructive algorithms number theory	1700	10.1k
2123G	Modular Sorting brute force data structures greedy math number theory sortings	2100	3.3k
2122A	Greedy Grid constructive algorithms greedy	800	20.7k
2122B	Pile Shuffling greedy math	1100	16.8k
2122C	Manhattan Pairs constructive algorithms geometry greedy math sortings	1700	9.7k
2122D	Traffic Lights brute force data structures divide and conquer dp graphs greedy shortest paths	2400	2.8k
2122E	Greedy Grid Counting combinatorics dp greedy math	2600	2.1k
2122F	Colorful Polygon constructive algorithms divide and conquer geometry	3400	151
2122G	Tree Parking combinatorics fft math trees	3300	1.4k
2121A	Letter Home brute force math	800	39.8k
2121B	Above the Clouds constructive algorithms greedy strings	800	32.8k
2121C	Those Who Are With Us greedy implementation	1200	22.3k
2121D	1709 implementation sortings	1300	18.7k
2121E	Sponsor of Your Problems dp greedy implementation strings	1500	15.1k
2121F	Yamakasi binary search brute force data structures greedy two pointers	1800	8.3k
2121G	Gangsta data structures divide and conquer math sortings	1900	5.5k
2121H	Ice Baby binary search brute force data structures dp implementation sortings	2300	2.3k
2120A	Square of Rectangles geometry math	800	20.6k
2120B	Square Pool geometry	1000	18.1k
2120C	Divine Tree constructive algorithms greedy math sortings trees	1400	13k
2120D	Matrix game combinatorics math	1800	5.9k
2120E	Lanes of Cars binary search dp ternary search	2300	1.9k
2120F	Superb Graphs 2-sat graphs	2600	504
2120G	Eulerian Line Graph graphs greedy math	3000	113
2119A	Add or XOR bitmasks greedy math	800	27.7k
2119B	Line Segments geometry greedy math	1200	18.8k
2119C	A Good Problem bitmasks constructive algorithms math	1300	16.8k
2119D	Token Removing combinatorics dp math	2100	3.6k
2119E	And Constraint bitmasks dp greedy	2600	732
2119F	Volcanic Eruptions dfs and similar dp greedy shortest paths trees	3300	191
2118A	Equal Subsequences constructive algorithms greedy	800	29.4k
2118B	Make It Permutation constructive algorithms	1200	20.5k
2118C	Make It Beautiful bitmasks data structures greedy math	1300	19k
2118D1	Red Light, Green Light (Easy version) brute force dfs and similar dp graphs implementation number theory	1700	8.6k
2118D2	Red Light, Green Light (Hard version) binary search brute force data structures dfs and similar dp graphs implementation math number theory	2200	2.6k
2118E	Grid Coloring constructive algorithms geometry greedy math	2400	1.4k
2118F	Shifts and Swaps data structures graphs hashing trees	3100	299
2117A	False Alarm greedy implementation	800	38.7k
2117B	Shrink constructive algorithms	800	32.6k
2117C	Cool Partition data structures greedy	1200	21.6k
2117D	Retaliation binary search math number theory	1200	22.7k
2117E	Lost Soul brute force greedy	1600	12.3k
2117F	Wildflower combinatorics dfs and similar trees	1800	6.1k
2117G	Omg Graph brute force dsu graphs greedy shortest paths sortings	1900	5.4k
2117H	Incessant Rain data structures divide and conquer sortings	2500	1k
2116A	Gellyfish and Tricolor Pansy games greedy	800	27.2k
2116B	Gellyfish and Baby's Breath greedy math sortings	1300	18k
2115A	Gellyfish and Flaming Peony constructive algorithms dp math number theory	1500	16.5k
2115B	Gellyfish and Camellia Japonica brute force constructive algorithms dfs and similar dp graphs greedy trees	2100	5.1k
2115C	Gellyfish and Eternal Violet combinatorics dp greedy math probabilities	2700	1.5k
2115D	Gellyfish and Forget-Me-Not bitmasks dp games greedy math	2900	2.1k
2115E	Gellyfish and Mayflower dp graphs	3500	317
2115F1	Gellyfish and Lycoris Radiata (Easy Version) data structures	3500	128
2115F2	Gellyfish and Lycoris Radiata (Hard Version) data structures	3500	123
2114A	Square Year binary search brute force math	800	44.2k
2114B	Not Quite a Palindromic String greedy math	900	31.1k
2114C	Need More Arrays dp greedy	1000	31.6k
2114D	Come a Little Closer brute force greedy implementation math	1400	15k
2114E	Kirei Attacks the Estate dfs and similar dp greedy trees	1400	14.4k
2114F	Small Operations binary search brute force dfs and similar dp math number theory sortings	2000	5.6k
2114G	Build an Array brute force constructive algorithms dp greedy math number theory	2200	2.1k
2113A	Shashliks greedy math	800	20.7k
2113B	Good Start constructive algorithms math	1200	15k
2113C	Smilo and Minecraft brute force constructive algorithms greedy	1700	8.2k
2113D	Cheater binary search constructive algorithms greedy implementation	2200	3k
2113E	From Kazan with Love dfs and similar graphs implementation trees	2800	430
2113F	Two Arrays constructive algorithms dfs and similar graphs math	2500	992
2112A	Race implementation math	800	29.7k
2112B	Shrinking Array brute force greedy	1100	21.6k
2112C	Coloring Game binary search brute force greedy two pointers	1300	18.2k
2112D	Reachability and Tree constructive algorithms dfs and similar graphs trees	1700	9.8k
2112E	Tree Colorings combinatorics dfs and similar dp graphs math number theory trees	2200	3.5k
2112F	Variables and Operations graphs greedy shortest paths	2800	663
2111A	Energy Crystals greedy implementation math	800	20.9k
2111B	Fibonacci Cubes brute force dp implementation math	1100	18.2k
2111C	Equal Values brute force greedy two pointers	1100	20k
2111D	Creating a Schedule constructive algorithms data structures greedy implementation sortings	1400	12.3k
2111E	Changing the String binary search data structures greedy implementation sortings strings	1900	5.5k
2111F	Puzzle brute force constructive algorithms greedy math	2400	1.5k
2111G	Divisible Subarrays binary search bitmasks brute force data structures interactive	2900	422
2110A	Fashionable Array implementation sortings	800	30.3k
2110B	Down with Brackets strings	900	28.1k
2110C	Racing constructive algorithms greedy	1400	16.2k
2110D	Fewer Batteries binary search dfs and similar dp graphs greedy hashing	1700	8.9k
2110E	Melody dfs and similar graphs implementation	2300	2.8k

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