Problemset - Codeforces

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Problems

#	Name
1012F	Passports dp, implementation	3400	x158
1012E	Cycle sort dsu, math	3100	x309
1012D	AB-Strings constructive algorithms, strings	2800	x371
1012C	Hills dp	1900	x3487
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x3939
1012A	Photo of The Sky brute force, implementation, math, sortings	1500	x6426
1010F	Tree fft, graphs, trees	3400	x218
1010E	Store data structures	2700	x333
1010D	Mars rover dfs and similar, graphs, implementation, trees	2000	x2377
1010C	Border number theory	1800	x4835
1010B	Rocket binary search, interactive	1800	x5178
1010A	Fly binary search, math	1500	x8058
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x822
1009F	Dominant Indices data structures, dsu, trees	2300	x5613
1009E	Intercity Travelling combinatorics, math, probabilities	2000	x2975
1009D	Relatively Prime Graph brute force, constructive algorithms, graphs, greedy, math	1700	x6240
1009C	Annoying Present greedy, math	1700	x5231
1009B	Minimum Ternary String greedy, implementation	1400	x10086
1007E	Mini Metro dp	3400	x210
1007D	Ants 2-sat, data structures, trees	3200	x287
1007C	Guess two numbers binary search, interactive	3000	x416
1007B	Pave the Parallelepiped bitmasks, brute force, combinatorics, math, number theory	2400	x951
1006F	Xor-Paths bitmasks, brute force, dp, meet-in-the-middle	2100	x5285
1006E	Military Problem dfs and similar, graphs, trees	1600	x9834
1006D	Two Strings Swaps implementation	1700	x5984
1005F	Berland and the Shortest Paths brute force, dfs and similar, graphs, shortest paths	2100	x1692
1005E2	Median on Segments (General Case Edition) sortings	2400	x1277
1005E1	Median on Segments (Permutations Edition) sortings	1800	x3891
1005D	Polycarp and Div 3 dp, greedy, number theory	1500	x10142
1004F	Sonya and Bitwise OR bitmasks, data structures, divide and conquer	2600	x752
1004E	Sonya and Ice Cream binary search, data structures, dp, greedy, shortest paths, trees	2400	x1058
1004D	Sonya and Matrix brute force, constructive algorithms, implementation	2300	x1425
1004C	Sonya and Robots constructive algorithms, implementation	1400	x7531
1003F	Abbreviation dp, hashing, strings	2200	x1355
1003E	Tree Constructing constructive algorithms, graphs	2100	x2706
1003D	Coins and Queries greedy	1600	x7738
1002E2	Another array reconstruction algorithm	1900	x203
1002E1	Bernstein-Vazirani algorithm	1500	x322
1002D3	Oracle for majority function	1600	x333
1002C2	Distinguish zero state and plus state without errors	1800	x267
1002C1	Distinguish zero state and plus state with minimum error	1700	x302
1002B4	Distinguish four 2-qubit states - 2	1700	x309
1002B3	Distinguish four 2-qubit states	1600	x411
1002B2	Distinguish GHZ state and W state	1600	x446
1002A4	Generate W state	1900	x267
1002A3	Generate superposition of two basis states	1500	x476
1001I	Deutsch-Jozsa algorithm *special problem	1700	x401
1001G	Oracle for f(x) = k-th element of x *special problem	1400	x538
1001E	Distinguish Bell states *special problem	1600	x558
1001D	Distinguish plus state and minus state *special problem	1400	x682
1001C	Generate GHZ state *special problem	1400	x654
1001B	Generate Bell state *special problem	1400	x711
1000G	Two-Paths data structures, dp, trees	2700	x597
1000F	One Occurrence data structures, divide and conquer	2400	x3822
1000E	We Need More Bosses dfs and similar, graphs, trees	2100	x4603
1000D	Yet Another Problem On a Subsequence combinatorics, dp	1900	x4204
1000C	Covered Points Count data structures, implementation, sortings	1700	x6729
1000B	Light It Up greedy	1500	x5793
999F	Cards and Joy dp	2000	x2661
999E	Reachability from the Capital dfs and similar, graphs, greedy	2000	x6621
999D	Equalize the Remainders data structures, greedy, implementation	1900	x4355
997E	Good Subsegments data structures	3000	x1233
997D	Cycles in product combinatorics, divide and conquer, trees	2900	x434
997C	Sky Full of Stars combinatorics, math	2500	x1709
997B	Roman Digits brute force, combinatorics, dp, greedy, math	2000	x2958
997A	Convert to Ones brute force, greedy, implementation, math	1500	x8304
995F	Cowmpany Cowmpensation combinatorics, dp, math, trees	2700	x1237
995E	Number Clicker divide and conquer, graphs, meet-in-the-middle, number theory	2700	x661
995D	Game math	2500	x763
995C	Leaving the Bar brute force, data structures, geometry, greedy, math, sortings	2300	x1894
995B	Suit and Tie greedy, implementation, math	1400	x7086
995A	Tesla constructive algorithms, implementation	2100	x1695
994B	Knights of a Polygonal Table greedy, implementation, sortings	1400	x5643
993F	The Moral Dilemma	3200	x60
993E	Nikita and Order Statistics chinese remainder theorem, fft, math	2300	x1415
993D	Compute Power binary search, dp, greedy	2500	x749
993C	Careful Maneuvering bitmasks, brute force, geometry	2100	x1696
993B	Open Communication bitmasks, brute force	1900	x1951
993A	Two Squares geometry, implementation	1600	x4140
992E	Nastya and King-Shamans binary search, data structures	2500	x1417
992D	Nastya and a Game brute force, implementation, math	2100	x1645
992C	Nastya and a Wardrobe math	1600	x4554
992B	Nastya Studies Informatics math, number theory	1600	x6253
991F	Concise and clear brute force, greedy, implementation, math	2700	x307
991E	Bus Number brute force, combinatorics, math	1800	x3491
991D	Bishwock dp, greedy	1500	x7147
991C	Candies binary search, implementation	1500	x10373
990G	GCD Counting divide and conquer, dp, dsu, number theory, trees	2400	x1839
990F	Flow Control dfs and similar, dp, greedy, trees	2400	x895
990E	Post Lamps brute force, greedy	2100	x2015
990D	Graph And Its Complement constructive algorithms, graphs, implementation	1700	x3803
990C	Bracket Sequences Concatenation Problem implementation	1500	x5893
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x235
989D	A Shade of Moonlight binary search, geometry, math, sortings, two pointers	2500	x517
989C	A Mist of Florescence constructive algorithms, graphs	1800	x3796
988F	Rain and Umbrellas dp	2100	x2317
988E	Divisibility by 25 brute force, greedy	2100	x3948
988D	Points and Powers of Two brute force, math	1800	x7261
988C	Equal Sums implementation, sortings	1400	x10179
987C	Three displays brute force, dp, implementation	1400	x13470