Problemset - Codeforces

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Problems

#	Name
1842B	Tenzing and Books bitmasks, greedy, math	1100	x17407
1842A	Tenzing and Tsondu games, math	800	x19882
1841E	Fill the Matrix data structures, greedy, math	2200	x2044
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x7924
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x995
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2415
1840C	Ski Resort combinatorics, math, two pointers	1000	x28568
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x22607
1839A	The Good Array greedy, implementation, math	800	x17544
1838E	Count Supersequences combinatorics, dp, math	2500	x1501
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x14704
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x16527
1838A	Blackboard List constructive algorithms, math	800	x21621
1837A	Grasshopper on a Line constructive algorithms, math	800	x33435
1836B	Astrophysicists greedy, math	1100	x12712
1835D	Doctor's Brown Hypothesis dfs and similar, graphs, math, number theory	2900	x510
1835C	Twin Clusters bitmasks, brute force, constructive algorithms, math, probabilities	2600	x1010
1835B	Lottery binary search, brute force, greedy, math, two pointers	2500	x953
1835A	k-th equality brute force, implementation, math	1700	x7908
1834F	Typewriter brute force, math	2500	x532
1834E	MEX of LCM binary search, data structures, implementation, math, number theory	2300	x2299
1834C	Game with Reversing games, greedy, math, strings	1200	x13453
1834B	Maximum Strength greedy, math	1000	x15388
1834A	Unit Array greedy, math	800	x25276
1833F	Ira and Flamenco combinatorics, constructive algorithms, data structures, implementation, math, sortings, two pointers	1700	x7524
1833C	Vlad Building Beautiful Array greedy, math	800	x26243
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1923
1832D1	Red-Blue Operations (Easy Version) binary search, greedy, implementation, math	2100	x2971
1830E	Bully Sort data structures, math	3500	x253
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1718
1830B	The BOSS Can Count Pairs brute force, math	2000	x4967
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7903
1829G	Hits Different data structures, dp, implementation, math	1600	x10666
1829F	Forever Winter dfs and similar, graphs, math	1300	x17960
1828B	Permutation Swap math, number theory	900	x23789
1828A	Divisible Array constructive algorithms, math	800	x23793
1827A	Counting Orders combinatorics, math, sortings, two pointers	1100	x19405
1826F	Fading into Fog geometry, interactive, math, probabilities	2800	x386
1826C	Dreaming of Freedom greedy, math, number theory	1300	x13752
1826B	Lunatic Never Content math, number theory	1100	x18125
1825B	LuoTianyi and the Table greedy, math	1000	x14788
1824B2	LuoTianyi and the Floating Islands (Hard Version) combinatorics, dfs and similar, math, probabilities, trees	2300	x2727
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4691
1823F	Random Walk dp, graphs, math, probabilities, trees	2600	x900
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x1264
1823D	Unique Palindromes constructive algorithms, math, strings	1900	x3876
1823C	Strongly Composite greedy, math, number theory	1300	x12422
1823B	Sort with Step brute force, math, sortings	900	x16140
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x16222
1822G2	Magic Triples (Hard Version) brute force, data structures, math, number theory	2200	x2464
1822G1	Magic Triples (Easy Version) brute force, data structures, math, number theory	1700	x7162
1822E	Making Anti-Palindromes greedy, math, strings	1600	x10606
1822D	Super-Permutation constructive algorithms, math	1200	x16934
1822C	Bun Lover math	800	x23163
1822B	Karina and Array greedy, math, sortings	800	x24928
1821F	Timber combinatorics, dp, fft, math	2600	x764
1821D	Black Cells binary search, brute force, greedy, math	1900	x5031
1821C	Tear It Apart brute force, implementation, math, strings	1300	x14465
1821A	Matching combinatorics, math	800	x19970
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x15059
1819E	Roads in E City interactive, math, probabilities, trees	3200	x302
1819C	The Fox and the Complete Tree Traversal constructive algorithms, dp, implementation, math, trees	2400	x1500
1817C	Similar Polynomials combinatorics, math	2400	x1013
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x241
1815E	Bosco and Particle dp, math, number theory, strings	3100	x349
1815D	XOR Counting bitmasks, combinatorics, dp, math	2600	x1192
1815A	Ian and Array Sorting greedy, math	1300	x14286
1814D	Balancing Weapons binary search, brute force, data structures, math, two pointers	2500	x883
1814B	Long Legs brute force, math	1700	x10150
1814A	Coins implementation, math	800	x29855
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x4026
1812D	Trivial Conjecture *special problem, constructive algorithms, math, number theory		x4672
1811G2	Vlad and the Nice Paths (hard version) binary search, combinatorics, data structures, dp, math, two pointers	2200	x1793
1811G1	Vlad and the Nice Paths (easy version) combinatorics, dp, math	2100	x2103
1811E	Living Sequence binary search, dp, math, number theory	1500	x12517
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x7603
1811B	Conveyor Belts implementation, math	1000	x20520
1811A	Insert Digit greedy, math, strings	800	x31323
1810H	Last Number combinatorics, math	2900	x141
1810F	M-tree data structures, math, sortings, trees	2800	x580
1810D	Climbing the Tree binary search, math	1700	x7511
1810B	Candies constructive algorithms, math, number theory	800	x17637
1809G	Prediction combinatorics, dp, math	2800	x450
1809E	Two Tanks binary search, dp, implementation, math	2400	x866
1809C	Sum on Subarrays constructive algorithms, greedy, math	1500	x12969
1809B	Points on Plane binary search, greedy, math	1000	x20113
1808E3	Minibuses on Venus (hard version) brute force, combinatorics, dp, math	2800	x448
1808B	Playing in a Casino math, sortings	1200	x17454
1806F2	GCD Master (hard version) greedy, math, sortings	2900	x300
1806F1	GCD Master (easy version) greedy, math, number theory, sortings	2900	x360
1806D	DSU Master combinatorics, dp, dsu, math	2500	x940
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7699
1806A	Walking Master geometry, greedy, math	800	x25612
1805F2	Survival of the Weakest (hard version) greedy, math, sortings, two pointers	3100	x355
1805F1	Survival of the Weakest (easy version) binary search, brute force, implementation, math, sortings	2600	x928
1805C	Place for a Selfie binary search, data structures, geometry, math	1400	x12693
1804C	Pull Your Luck brute force, greedy, math, number theory	1500	x12280
1804A	Lame King greedy, math	800	x18013
1802B	Settlement of Guinea Pigs greedy, implementation, math	1000	x13429
1801F	Another n-dimensional chocolate bar dp, math, meet-in-the-middle, number theory	2700	x602