Problemset - Codeforces

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Codeforces Round (Div. 2)
6 days

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Problems

#	Name
1033C	Permutation Game brute force, dp, games	1600	x5658
1032C	Playing Piano constructive algorithms, dp	1700	x4017
1031C	Cram Time greedy	1600	x5362
1031B	Curiosity Has No Limits	1500	x3942
1030D	Vasya and Triangle geometry, number theory	1800	x5998
1029C	Maximal Intersection greedy, math, sortings	1600	x7637
1028C	Rectangles geometry, implementation, sortings	1600	x4636
1027D	Mouse Hunt dfs and similar, graphs	1700	x7609
1027C	Minimum Value Rectangle greedy	1600	x6929
1025C	Plasticine zebra constructive algorithms, implementation	1600	x6179
1025B	Weakened Common Divisor brute force, greedy, number theory	1600	x7999
1023D	Array Restoration constructive algorithms, data structures	1700	x4056
1019A	Elections brute force, greedy	1700	x4660
1017C	The Phone Number constructive algorithms, greedy	1600	x6051
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x4740
1016C	Vasya And The Mushrooms dp, implementation	1800	x3781
1015E1	Stars Drawing (Easy Edition) brute force, dp, greedy	1700	x5978
1015D	Walking Between Houses constructive algorithms, greedy	1600	x8343
1012A	Photo of The Sky brute force, implementation, math, sortings	1500	x6450
1010C	Border number theory	1800	x4905
1010B	Rocket binary search, interactive	1800	x5247
1010A	Fly binary search, math	1500	x8116
1009D	Relatively Prime Graph brute force, constructive algorithms, graphs, greedy, math	1700	x6291
1009C	Annoying Present greedy, math	1700	x5317
1009B	Minimum Ternary String greedy, implementation	1400	x10199
1006E	Military Problem dfs and similar, graphs, trees	1600	x10091
1006D	Two Strings Swaps implementation	1700	x6038
1005E1	Median on Segments (Permutations Edition) sortings	1800	x3974
1005D	Polycarp and Div 3 dp, greedy, number theory	1500	x10323
1004C	Sonya and Robots constructive algorithms, implementation	1400	x7575
1003D	Coins and Queries greedy	1600	x7884
1002E1	Bernstein-Vazirani algorithm *special problem	1500	x323
1002D3	Oracle for majority function *special problem	1600	x334
1002C2	Distinguish zero state and plus state without errors *special problem	1800	x268
1002C1	Distinguish zero state and plus state with minimum error *special problem	1700	x303
1002B4	Distinguish four 2-qubit states - 2 *special problem	1700	x311
1002B3	Distinguish four 2-qubit states *special problem	1600	x413
1002B2	Distinguish GHZ state and W state *special problem	1600	x447
1002A3	Generate superposition of two basis states *special problem	1500	x477
1001I	Deutsch-Jozsa algorithm *special problem	1700	x403
1001G	Oracle for f(x) = k-th element of x *special problem	1400	x539
1001E	Distinguish Bell states *special problem	1600	x559
1001D	Distinguish plus state and minus state *special problem	1400	x684
1001C	Generate GHZ state *special problem	1400	x656
1001B	Generate Bell state *special problem	1400	x713
1000C	Covered Points Count data structures, implementation, sortings	1700	x6916
1000B	Light It Up greedy	1500	x5932
997A	Convert to Ones brute force, greedy, implementation, math	1500	x8352
995B	Suit and Tie greedy, implementation, math	1400	x7130
994B	Knights of a Polygonal Table greedy, implementation, sortings	1400	x5763
993A	Two Squares geometry, implementation	1600	x4175
992C	Nastya and a Wardrobe math	1600	x4632
992B	Nastya Studies Informatics math, number theory	1600	x6331
991E	Bus Number brute force, combinatorics, math	1800	x3526
991D	Bishwock dp, greedy	1500	x7245
991C	Candies binary search, implementation	1500	x10638
990D	Graph And Its Complement constructive algorithms, graphs, implementation	1700	x3872
990C	Bracket Sequences Concatenation Problem implementation	1500	x5963
989C	A Mist of Florescence constructive algorithms, graphs	1800	x3843
988D	Points and Powers of Two brute force, math	1800	x7407
988C	Equal Sums implementation, sortings	1400	x10334
987C	Three displays brute force, dp, implementation	1400	x13725
986B	Petr and Permutations combinatorics, math	1800	x4749
986A	Fair graphs, greedy, number theory, shortest paths	1600	x7084
985C	Liebig's Barrels greedy	1500	x5807
983B	XOR-pyramid dp	1800	x5634
983A	Finite or not? implementation, math	1700	x4569
982C	Cut 'em all! dfs and similar, dp, graphs, greedy, trees	1500	x11906
981C	Useful Decomposition implementation, trees	1400	x5530
980C	Posterized games, greedy	1700	x3804
980B	Marlin constructive algorithms	1600	x4751
979C	Kuro and Walking Route dfs and similar, trees	1600	x6404
979B	Treasure Hunt greedy	1800	x4452
978G	Petya's Exams greedy, implementation, sortings	1700	x4430
978F	Mentors binary search, data structures, implementation	1500	x8453
978E	Bus Video System combinatorics, math	1400	x9691
978D	Almost Arithmetic Progression brute force, implementation, math	1500	x8947
977F	Consecutive Subsequence dp	1700	x19985
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x21256
977D	Divide by three, multiply by two dfs and similar, math, sortings	1400	x18687
976C	Nested Segments greedy, implementation, sortings	1500	x7171
975C	Valhalla Siege binary search	1400	x9796
963A	Alternating Sum math, number theory	1800	x3377
962D	Merge Equals data structures, implementation	1600	x6977
962C	Make a Square brute force, implementation, math	1400	x7937
961C	Chessboard bitmasks, brute force, implementation	1400	x5330
960C	Subsequence Counting bitmasks, constructive algorithms, greedy, implementation	1700	x3942
960B	Minimize the error data structures, greedy, sortings	1500	x8360
959C	Mahmoud and Ehab and the wrong algorithm constructive algorithms, trees	1500	x5820
958F2	Lightsabers (medium) binary search, two pointers	1800	x1253
958F1	Lightsabers (easy) implementation	1500	x1698
958E1	Guard Duty (easy) brute force, geometry, greedy, math	1600	x1556
958D1	Hyperspace Jump (easy) expression parsing, math	1400	x2094
958A1	Death Stars (easy) implementation	1400	x1697
955B	Not simply beatiful strings implementation	1400	x4857
954D	Fight Against Traffic dfs and similar, graphs, shortest paths	1600	x6772
954C	Matrix Walk implementation	1700	x3802
954B	String Typing implementation, strings	1400	x7310
952D	I'm Feeling Lucky! probabilities	1800	x2459
952C	Ravioli Sort implementation	1600	x2921