Problemset - Codeforces

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Problems

#	Name
1958J	Necromancer *special problem	3200	x30
1958I	Equal Trees *special problem, graphs, meet-in-the-middle	3100	x31
1958H	Composite Spells *special problem, dp	2600	x75
1958G	Observation Towers *special problem	2400	x104
1958F	Narrow Paths *special problem, combinatorics	2000	x189
1958E	Yet Another Permutation Constructive *special problem, constructive algorithms	1900	x244
1958D	Staircase *special problem	1600	x497
1958C	Firewood *special problem	1500	x678
1958B	Clock in the Pool *special problem, math	1400	x867
1958A	1-3-5 *special problem, dp	1100	x1870
1953A	Accuracy-Preserving Summation Algorithm *special problem
1940D	Almost Certainly *special problem, constructive algorithms, data structures, sortings		x143
1940C	Burenka and Pether *special problem, data structures, dfs and similar, divide and conquer, dsu, graphs, sortings, trees		x35
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x197
1940A	Parallel Universes *special problem, constructive algorithms, dfs and similar, dsu, graphs		x83
1939D	Big Persimmon *special problem, dp, games		x87
1939C	More Gifts *special problem, dfs and similar, two pointers		x302
1939B	Evidence Board *special problem, constructive algorithms, dfs and similar, graphs, trees		x234
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x24
1910J	Two Colors *special problem	2900	x48
1910I	Inverse Problem *special problem, combinatorics, dp	2700	x49
1910H	Sum of Digits of Sums *special problem, binary search, data structures	2400	x86
1910G	Pool Records *special problem, greedy	2700	x58
1910F	Build Railway Stations *special problem, greedy, trees	2000	x174
1910E	Maximum Sum Subarrays *special problem, dp	2100	x199
1910D	Remove and Add *special problem, greedy	1800	x349
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x626
1910B	Security Guard *special problem, greedy	1600	x669
1910A	Username *special problem, implementation	1100	x1757
1885A	Deterministic Scheduling for Extended Reality over 5G and Beyond *special problem
1812J	Unmysterious Language *special problem, constructive algorithms, strings		x5903
1812I	Mountain Climber *special problem		x268
1812H	Expected Twist *special problem, interactive		x148
1812G	Colour Vision *special problem, implementation		x552
1812F	Factorization *special problem, number theory		x1254
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x4009
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4659
1812C	Digits *special problem		x1267
1812B	Was it Rated? special problem, special problem, *special problem, brute force, implementation		x5691
1812A	Are You a Robot? special problem, special problem, *special problem, expression parsing, strings		x13283
1769D3	Игра в Девятку III *special problem, brute force	2300	x119
1769D2	Игра в Девятку II *special problem, brute force	2200	x197
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x382
1769C2	Подкрутка II *special problem, dp	1300	x963
1769C1	Подкрутка I *special problem, brute force, dp, greedy	1200	x968
1769B2	Копирование файлов II *special problem, binary search, brute force, math	1400	x874
1769B1	Копирование файлов I *special problem, brute force, implementation, math	1000	x1354
1769A	Узкая дорога *special problem, math	800	x1951
1663H	Cross-Language Program *special problem, constructive algorithms		x1283
1663G	Six Characters *special problem, constructive algorithms, strings		x211
1663F	In Every Generation... *special problem, strings		x346
1663E	Are You Safe? *special problem, implementation		x553
1663D	Is it rated - 3 *special problem, combinatorics, dp, math		x1412
1663C	Pōja Verdon *special problem, implementation, math		x5673
1663B	Mike's Sequence *special problem, divide and conquer, implementation, math		x3399
1663A	Who Tested? *special problem, expression parsing, trees		x10491
1576A	Communication Routing Challenge *special problem
1571J	Two Railroads *special problem	3000	x40
1571I	Physical Examination *special problem, binary search, data structures	3200	x58
1571H	Laser Beams *special problem, geometry, probabilities	2900	x48
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x75
1571F	Kotlinforces *special problem, constructive algorithms, dp	2000	x182
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x337
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x331
1571C	Rhyme *special problem, implementation	1800	x376
1571B	Epic Novel *special problem, math	1300	x713
1571A	Sequence of Comparisons *special problem	800	x1297
1533J	Pawns *special problem		x44
1533I	Excursions *special problem, constructive algorithms, dfs and similar, flows, graph matchings, graphs		x52
1533H	Submatrices *special problem, bitmasks, data structures, dp		x84
1533G	Biome Map *special problem, constructive algorithms, dfs and similar, graphs		x90
1533F	Binary String Partition *special problem, binary search, greedy		x215
1533E	Chess Team Forming *special problem, binary search, data structures, greedy		x275
1533D	String Searching *special problem, hashing		x441
1533C	Sweets *special problem, data structures, implementation		x471
1533B	Nearest Point Function *special problem, implementation		x767
1533A	Travel to Bertown *special problem, implementation, math		x1074
1532F	Prefixes and Suffixes *special problem, strings		x218
1532E	Good Array *special problem		x390
1532D	Teams Forming *special problem, sortings		x585
1532C	Uniform String *special problem, implementation		x639
1532B	Frog Jumping *special problem, math		x824
1532A	A+B (Trial Problem) *special problem		x1136
1531E3	Сортировка слиянием *special problem, binary search		x269
1531E2	Сортировка слиянием special problem, special problem, brute force		x338
1531E1	Сортировка слиянием *special problem		x358
1531D	Редактируем Зингер \| color special problem, special problem		x353
1531C	Симметричный амфитеатр *special problem, constructive algorithms, dp		x650
1531B2	Мониторинг *special problem		x767
1531B1	Мониторинг special problem, special problem		x1089
1531A	Зингер \| color *special problem, implementation		x1449
1505I	Mysterious language again, seriously? *special problem	2200	x555
1505H	L BREAK into program *special problem	2500	x508
1505G	Encoded message *special problem, implementation	2600	x306
1505F	Math *special problem, math	2200	x1503
1505E	Cakewalk *special problem, greedy, implementation, shortest paths	1800	x1800
1505D	Xenolith? Hippodrome? *special problem, number theory	1800	x795
1505C	Fibonacci Words *special problem, implementation	1400	x6430
1505B	DMCA *special problem, implementation, number theory	1600	x6156
1505A	Is it rated - 2 *special problem, implementation, interactive	900	x14454

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