Problemset - Codeforces

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Problems

#	Name
1852D	Miriany and Matchstick constructive algorithms, dp, greedy	2800	x491
1852C	Ina of the Mountain data structures, dp, greedy, math	2400	x1665
1852B	Imbalanced Arrays constructive algorithms, graphs, greedy, math, sortings, two pointers	1800	x4697
1852A	Ntarsis' Set binary search, math, number theory	1800	x8286
1851G	Vlad and the Mountains binary search, data structures, dsu, graphs, implementation, sortings, trees, two pointers	2000	x3372
1851F	Lisa and the Martians bitmasks, greedy, math, strings, trees	1800	x6121
1851E	Nastya and Potions dfs and similar, dp, graphs, sortings	1500	x10807
1851D	Prefix Permutation Sums implementation, math	1300	x15653
1851C	Tiles Comeback greedy	1000	x23928
1851B	Parity Sort greedy, sortings, two pointers	800	x29902
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29974
1850H	The Third Letter dfs and similar, dsu, graphs, greedy, implementation	1700	x8572
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x13179
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x20402
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x24842
1850D	Balanced Round brute force, greedy, implementation, sortings	900	x39875
1850C	Word on the Paper implementation, strings	800	x46158
1850B	Ten Words of Wisdom implementation, sortings	800	x44351
1850A	To My Critics implementation, sortings	800	x59816
1849F	XOR Partition binary search, bitmasks, data structures, divide and conquer, greedy, trees	2700	x738
1849E	Max to the Right of Min binary search, data structures, divide and conquer, dp, dsu, two pointers	2300	x1713
1849D	Array Painting constructive algorithms, greedy, two pointers	1700	x8887
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x10954
1849B	Monsters greedy, math, sortings	1000	x27937
1849A	Morning Sandwich implementation, math	800	x30100
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1670
1848E	Vika and Stone Skipping brute force, implementation, math, number theory	2600	x812
1848D	Vika and Bonuses binary search, brute force, math, ternary search	2200	x2680
1848C	Vika and Price Tags math, number theory	1800	x6490
1848B	Vika and the Bridge binary search, data structures, greedy, implementation, math, sortings	1200	x16154
1848A	Vika and Her Friends games, math	900	x17123
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x929
1847E	Triangle Platinum? brute force, combinatorics, implementation, interactive, math, probabilities	2900	x335
1847D	Professor Higashikata data structures, dsu, greedy, implementation, strings	1900	x3893
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x13279
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20438
1847A	The Man who became a God greedy, sortings	800	x22153
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4581
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3233
1846E2	Rudolf and Snowflakes (hard version) binary search, brute force, implementation, math	1800	x7231
1846E1	Rudolf and Snowflakes (simple version) brute force, implementation, math	1300	x17875
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x20085
1846C	Rudolf and the Another Competition constructive algorithms, data structures, dp, greedy, sortings	1200	x19643
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x27222
1846A	Rudolph and Cut the Rope implementation, math	800	x32856
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x375
1845E	Boxes and Balls dp, implementation, math	2500	x1390
1845D	Rating System binary search, brute force, data structures, dp, dsu, greedy, math, two pointers	1800	x8059
1845C	Strong Password binary search, dp, greedy, strings	1400	x14751
1845B	Come Together geometry, implementation, math	900	x21969
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x29436
1844H	Multiple of Three Cycles combinatorics, data structures, dp, dsu, math	3400	x145
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x861
1844F2	Min Cost Permutation (Hard Version) binary search, constructive algorithms, data structures, greedy, math, sortings	2800	x407
1844F1	Min Cost Permutation (Easy Version) brute force, constructive algorithms, greedy, math	2600	x796
1844E	Great Grids 2-sat, constructive algorithms, dfs and similar, dsu, graphs	2400	x1917
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x12633
1844C	Particles dp, greedy, implementation, math	1300	x16213
1844B	Permutations & Primes constructive algorithms, math	1000	x18610
1844A	Subtraction Game constructive algorithms, games	800	x24836
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1694
1843F1	Omsk Metro (simple version) data structures, dfs and similar, dp, graphs, greedy, math, trees	1800	x5506
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x13188
1843D	Apple Tree combinatorics, dfs and similar, dp, math, trees	1200	x18690
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x34365
1843B	Long Long greedy, math, two pointers	800	x29613
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x34882
1842I	Tenzing and Necklace divide and conquer, dp, greedy	3500	x125
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x722
1842G	Tenzing and Random Operations combinatorics, dp, math, probabilities	2800	x1121
1842F	Tenzing and Tree dfs and similar, greedy, shortest paths, sortings, trees	2500	x1440
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1656
1842D	Tenzing and His Animal Friends constructive algorithms, graphs, greedy	1900	x4185
1842C	Tenzing and Balls dp	1500	x13614
1842B	Tenzing and Books bitmasks, greedy, math	1100	x17976
1842A	Tenzing and Tsondu games, math	800	x20004
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x511
1841E	Fill the Matrix data structures, greedy, math	2200	x2089
1841D	Pairs of Segments data structures, greedy, sortings, two pointers	2000	x4556
1841C	Ranom Numbers brute force, dp, greedy, math, strings	1800	x8041
1841B	Keep it Beautiful implementation	1000	x22085
1841A	Game with Board constructive algorithms, games	800	x24976
1840G2	In Search of Truth (Hard Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2500	x1007
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2444
1840F	Railguns brute force, dfs and similar, dp, graphs	2200	x1892
1840E	Character Blocking data structures, hashing, implementation	1600	x8330
1840D	Wooden Toy Festival binary search, greedy, sortings	1400	x14323
1840C	Ski Resort combinatorics, math, two pointers	1000	x29903
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x22889
1840A	Cipher Shifer implementation, strings, two pointers	800	x34795
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1262
1839D	Ball Sorting data structures, dp, sortings	2100	x2407
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	x12352
1839B	Lamps greedy, sortings	1100	x15424
1839A	The Good Array greedy, implementation, math	800	x17667
1838F	Stuck Conveyor binary search, constructive algorithms, interactive	3000	x327
1838E	Count Supersequences combinatorics, dp, math	2500	x1535
1838D	Bracket Walk data structures, greedy, strings	2100	x3362
1838C	No Prime Differences constructive algorithms, math, number theory	1400	x15048
1838B	Minimize Permutation Subarrays constructive algorithms, math	1100	x16726