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Problemset

309 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
2246E	lce4113 and Security Game bitmasks interactive math probabilities	unrated	539
2245G	NPC Challenge divide and conquer interactive	unrated	101
2237G	Send GCDs communication constructive algorithms interactive math number theory	2900	416
2222E	Seek the Truth binary search bitmasks constructive algorithms interactive	2000	2.3k
2219B1	Unique Values (Easy version) binary search constructive algorithms divide and conquer interactive math	1900	4.2k
2219B2	Unique Values (Hard version) binary search bitmasks constructive algorithms interactive	2000	3.8k
2215C	Oriented Journey bitmasks brute force communication constructive algorithms graphs interactive trees	2200	819
2214J	Special Problem *special brute force games interactive	unrated	3.7k
2211E	Minimum Path Cover brute force dp greedy interactive math number theory trees	2500	1k
2210E	Binary Strings are Simple? constructive algorithms implementation interactive number theory	2700	369
2209C	Find the Zero constructive algorithms interactive	1400	11.8k
2207H1	Bowser's Castle (Easy Version) binary search constructive algorithms divide and conquer greedy interactive trees	unrated	60
2207H2	Bowser's Castle (Medium Version) constructive algorithms divide and conquer interactive trees two pointers	unrated	51
2207H3	Bowser's Castle (Hard Version) constructive algorithms divide and conquer interactive trees two pointers	unrated	69
2206A	Compare Suffixes interactive	3500	135
2196C1	Interactive Graph (Simple Version) binary search combinatorics dfs and similar dp graphs interactive	1800	3.9k
2196C2	Interactive Graph (Hard Version) combinatorics dfs and similar dp graphs interactive	2000	2.7k
2193G	Paths in a Tree dfs and similar interactive sortings trees	2100	2.4k
2190C	Comparable Permutations greedy implementation interactive sortings two pointers	2300	1.4k
2183G	Snake Instructions constructive algorithms greedy interactive	3200	243
2181C	Cacti Classification binary search constructive algorithms interactive math	3200	167
2179F	Blackslex and Another RGB Walking communication constructive algorithms graphs interactive number theory trees	2000	2.9k
2179G	Blackslex and Penguin Migration brute force interactive math	2200	1.3k
2178E	Flatten or Concatenate binary search divide and conquer interactive	2000	3.8k
2174E1	Game of Scientists (Version 1) chinese remainder theorem constructive algorithms interactive math	3100	147
2174E2	Game of Scientists (Version 2) binary search chinese remainder theorem dfs and similar interactive math	3200	104
2173E	Shiro's Mirror Duel constructive algorithms greedy interactive probabilities sortings	2200	1.6k
2168A1	Encode and Decode (Easy Version) communication constructive algorithms interactive	unrated	5.3k
2168A2	Encode and Decode (Hard Version) bitmasks communication interactive math	unrated	3.5k
2168B	Locate binary search combinatorics communication constructive algorithms greedy interactive	unrated	1.6k
2168C	Intercepting Butterflies bitmasks communication constructive algorithms graphs interactive	unrated	912
2164G	Pointless Machine constructive algorithms graphs interactive trees	3300	249
2163D1	Diadrash (Easy Version) binary search brute force divide and conquer implementation interactive	2100	2.8k
2163D2	Diadrash (Hard Version) binary search interactive math sortings	2500	1.6k
2163E	Plegma bitmasks combinatorics communication interactive	2700	676
2162D	Beautiful Permutation binary search interactive	1400	12.8k
2159A	MAD Interactive Problem constructive algorithms implementation interactive	1700	9k
2159F	Grand Finale: Snakes binary search interactive ternary search	3500	584
2157G	Isaac's Queries bitmasks brute force constructive algorithms dfs and similar divide and conquer dp greedy interactive math probabilities	2800	672
2156D	Find the Last Number binary search bitmasks constructive algorithms interactive	1900	5.5k
2155D	Batteries brute force constructive algorithms graph matchings graphs interactive math	1800	6.2k
2152E	Monotone Subsequence constructive algorithms graphs greedy interactive math	2100	3.9k
2150E1	Hidden Single (Version 1) divide and conquer interactive math probabilities sortings	2600	2.1k
2150E2	Hidden Single (Version 2) binary search divide and conquer interactive math probabilities	2800	669
2135B	For the Champion constructive algorithms interactive math	1700	8.6k
2135D1	From the Unknown (Easy Version) constructive algorithms interactive math	2100	3.4k
2135D2	From the Unknown (Hard Version) brute force constructive algorithms interactive math	2500	1.2k
2134E	Power Boxes constructive algorithms dp implementation interactive	2300	2.5k
2133C	The Nether graphs interactive	1400	13.4k
2129C1	Interactive RBS (Easy Version) binary search bitmasks constructive algorithms interactive	1900	4.5k
2129C2	Interactive RBS (Medium Version) binary search bitmasks constructive algorithms interactive	2000	3.2k
2129C3	Interactive RBS (Hard Version) binary search bitmasks constructive algorithms dp interactive	2300	1.9k
2129F1	Top-K Tracker (Easy Version) interactive	3500	539
2129F2	Top-K Tracker (Hard Version) interactive	3500	106
2127G1	Inter Active (Easy Version) binary search constructive algorithms interactive probabilities	3400	119
2127G2	Inter Active (Hard Version) binary search bitmasks constructive algorithms graphs implementation interactive math probabilities	3500	126
2111G	Divisible Subarrays binary search bitmasks brute force data structures interactive	2900	422
2109C1	Hacking Numbers (Easy Version) bitmasks constructive algorithms interactive math number theory	1500	11.8k
2109C2	Hacking Numbers (Medium Version) constructive algorithms interactive math number theory	1700	8.9k
2109C3	Hacking Numbers (Hard Version) constructive algorithms interactive math number theory	2600	3.3k
2108D	Needle in a Numstack binary search brute force implementation interactive	2200	2.5k
2106G1	Baudelaire (easy version) binary search constructive algorithms divide and conquer greedy interactive trees	2200	1.7k
2106G2	Baudelaire (hard version) binary search dfs and similar divide and conquer implementation interactive trees	2500	647
2096G	Wonderful Guessing Game bitmasks constructive algorithms interactive	3200	451
2095B	Plinko *special games interactive	unrated	6k
2087D	Uppercase or Lowercase? *special interactive	unrated	268
2086F	Online Palindrome brute force constructive algorithms interactive	3000	142
2077B	Finding OR Sum bitmasks constructive algorithms implementation interactive math	1900	3.7k
2074E	Empty Triangle geometry interactive probabilities	1600	6.8k
2073E	Minus Operator interactive	3300	82
2073H	Secret Lilies and Roses interactive	2700	387
2066A	Object Identification graphs greedy implementation interactive	1400	7.4k
2061G	Kevin and Teams constructive algorithms graphs interactive	2900	526
2052H	Hunting Hoglins in Hogwarts interactive	3500	74
2049E	Broken Queries binary search bitmasks brute force constructive algorithms implementation interactive	2400	1.6k
2038G	Guess One Character constructive algorithms implementation interactive	1900	3k
2037E	Kachina's Favorite Binary String dp greedy interactive two pointers	1600	7.6k
2036G	Library of Magic binary search constructive algorithms divide and conquer interactive math number theory	2200	1.7k
2032D	Genokraken constructive algorithms data structures graphs greedy implementation interactive trees two pointers	1800	6.3k
2031F	Penchick and Even Medians binary search constructive algorithms interactive probabilities	2800	476
2022D1	Asesino (Easy Version) binary search brute force constructive algorithms implementation interactive	1900	4.1k
2022D2	Asesino (Hard Version) constructive algorithms dp interactive	2700	845
2013C	Password Cracking constructive algorithms interactive strings	1400	14.9k
2001C	Guess The Tree binary search brute force dfs and similar divide and conquer dsu greedy interactive trees	1500	13.1k
1999G1	Ruler (easy version) binary search interactive	1500	15k
1999G2	Ruler (hard version) binary search interactive ternary search	1700	11.5k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1991E	Coloring Game constructive algorithms dfs and similar games graphs greedy interactive	1900	5.2k
1991I	Grid Game constructive algorithms games graph matchings greedy interactive	3500	172
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
1987H	Fumo Temple interactive	3500	147
1979F	Kostyanych's Theorem brute force constructive algorithms graphs interactive	2900	451
1977E	Tensor constructive algorithms graphs interactive	2600	951
1973D	Cat, Fox and Maximum Array Split brute force interactive math	2400	2.3k
1970D1	Arithmancy (Easy) brute force constructive algorithms interactive strings	2100	967
1970D2	Arithmancy (Medium) constructive algorithms interactive probabilities strings	2600	332
1970D3	Arithmancy (Hard) interactive	3100	167
1939A	Draw Polygon Lines *special constructive algorithms dp geometry interactive	unrated	30
1936A	Bitwise Operation Wizard bitmasks constructive algorithms greedy interactive math	1700	8.8k

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