Problemset - Codeforces

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Educational Codeforces Round 167 (Rated for Div. 2)
21:15:45
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Problems

#	Name
1619A	Square String? implementation, strings	800	x49499
1618B	Missing Bigram implementation	800	x22418
1618A	Polycarp and Sums of Subsequences math, sortings	800	x31853
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x22723
1617A	Forbidden Subsequence constructive algorithms, greedy, sortings, strings	800	x16148
1616A	Integer Diversity implementation	800	x22524
1615A	Closing The Gap greedy, math	800	x20600
1614B	Divan and a New Project constructive algorithms, sortings	1000	x18302
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x23123
1613B	Absent Remainder greedy, implementation, sortings	1000	x21322
1613A	Long Comparison implementation, math	900	x24150
1612B	Special Permutation constructive algorithms, greedy	900	x16984
1612A	Distance brute force, constructive algorithms	800	x17555
1611C	Polycarp Recovers the Permutation constructive algorithms	1000	x18081
1611B	Team Composition: Programmers and Mathematicians binary search, constructive algorithms, math	800	x28873
1611A	Make Even constructive algorithms, math	800	x30966
1610A	Anti Light's Cell Guessing math	900	x15894
1609A	Divide and Multiply greedy, implementation, math, number theory	900	x16791
1608A	Find Array constructive algorithms, math	800	x18812
1607C	Minimum Extraction brute force, sortings	1000	x24534
1607B	Odd Grasshopper math	900	x25149
1607A	Linear Keyboard implementation, strings	800	x36462
1606A	AB Balance strings	900	x23399
1605B	Reverse Sort greedy, sortings	1000	x17781
1605A	A.M. Deviation math, number theory	800	x20411
1604A	Era greedy	800	x21244
1602A	Two Subsequences implementation	800	x18837
1598B	Groups brute force, implementation	1000	x15844
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22950
1594A	Consecutive Sum Riddle math	800	x24064
1593C	Save More Mice binary search, greedy, greedy	1000	x24314
1593B	Make it Divisible by 25 dfs and similar, dp, greedy, math, math	900	x25823
1593A	Elections math	800	x35941
1592A	Gamer Hemose binary search, greedy, math, sortings	800	x21777
1585B	Array Eversion greedy	900	x14893
1585A	Life of a Flower implementation	800	x17595
1584C	Two Arrays greedy, math, sortings	900	x16113
1584B	Coloring Rectangles greedy, math	1000	x13176
1584A	Mathematical Addition math	800	x14686
1583A	Windblume Ode math, number theory	800	x13636
1582B	Luntik and Subsequences combinatorics, math	900	x19373
1582A	Luntik and Concerts math	800	x18356
1581A	CQXYM Count Permutations combinatorics, math, number theory	800	x13320
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x21094
1579A	Casimir's String Solitaire math, strings	800	x38171
1574A	Regular Bracket Sequences constructive algorithms	800	x21514
1573A	Countdown greedy	800	x20977
1571A	Sequence of Comparisons *special problem	800	x1268
1569B	Chess Tournament constructive algorithms	1000	x18668
1569A	Balanced Substring implementation	800	x25355
1567B	MEXor Mixup bitmasks, greedy	1000	x22039
1567A	Domino Disaster implementation, strings	800	x29796
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17194
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19264
1566A	Median Maximization binary search, greedy, math	800	x22912
1562B	Scenes From a Memory brute force, constructive algorithms, implementation, math, number theory	1000	x19280
1562A	The Miracle and the Sleeper greedy, math	800	x25248
1561A	Simply Strange Sort brute force, implementation, sortings	800	x16485
1560C	Infinity Table implementation, math	800	x26245
1560B	Who's Opposite? math	800	x35003
1560A	Dislike of Threes implementation	800	x57043
1559B	Mocha and Red and Blue dp, greedy	900	x22139
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x29570
1557A	Ezzat and Two Subsequences brute force, math, sortings	800	x27605
1556A	A Variety of Operations math	800	x17943
1555A	PizzaForces brute force, math	900	x27551
1554A	Cherry greedy	800	x28819
1553A	Digits Sum math, number theory	800	x30451
1552A	Subsequence Permutation sortings, strings	800	x23621
1551B1	Wonderful Coloring - 1 greedy, strings	800	x28834
1551A	Polycarp and Coins greedy, math	800	x49246
1550B	Maximum Cost Deletion greedy, math	1000	x25947
1550A	Find The Array greedy, math	800	x27784
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23962
1549A	Gregor and Cryptography math, number theory	800	x31770
1547B	Alphabetical Strings greedy, implementation, strings	800	x26104
1547A	Shortest Path with Obstacle implementation, math	800	x30081
1546A	AquaMoon and Two Arrays brute force, greedy	800	x18129
1543B	Customising the Track combinatorics, greedy, math	900	x22806
1543A	Exciting Bets greedy, math, number theory	900	x26972
1542A	Odd Set math	800	x43113
1541A	Pretty Permutations constructive algorithms, greedy, implementation	800	x29122
1539B	Love Song dp, implementation, strings	800	x23970
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x19745
1538B	Friends and Candies greedy, math	800	x31314
1538A	Stone Game brute force, dp, greedy	800	x36108
1537B	Bad Boy constructive algorithms, greedy, math	900	x28623
1537A	Arithmetic Array greedy, math	800	x36480
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x20105
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x29900
1535A	Fair Playoff brute force, implementation	800	x47347
1534A	Colour the Flag brute force, implementation	800	x12645
1530B	Putting Plates constructive algorithms, implementation	800	x15641
1530A	Binary Decimal greedy, math	800	x20834
1529A	Eshag Loves Big Arrays constructive algorithms, greedy, math	800	x29516
1527A	And Then There Were K bitmasks	800	x34503
1526A	Mean Inequality constructive algorithms, sortings	800	x23975
1525B	Permutation Sort constructive algorithms, greedy	900	x24354
1525A	Potion-making math, number theory	800	x25157
1523A	Game of Life implementation	800	x13430