Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
37:31:54
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Problems

#	Name
1573A	Countdown greedy	800	x20909
1572D	Bridge Club flows, graph matchings, graphs, greedy	2800	x459
1572C	Paint dp, greedy	2700	x1384
1572B	Xor of 3 brute force, constructive algorithms, greedy, two pointers	2500	x1733
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x319
1567D	Expression Evaluation Error constructive algorithms, greedy, implementation, math	2000	x4385
1567B	MEXor Mixup bitmasks, greedy	1000	x21312
1566G	Four Vertices constructive algorithms, data structures, graphs, greedy, implementation, shortest paths	3100	x326
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x923
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4006
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7681
1566D1	Seating Arrangements (easy version) data structures, greedy, sortings	1100	x13741
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x16960
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19034
1566A	Median Maximization binary search, greedy, math	800	x22680
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1323
1562A	The Miracle and the Sleeper greedy, math	800	x25158
1561C	Deep Down Below binary search, greedy, sortings	1300	x13405
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4183
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x5888
1560D	Make a Power of Two greedy, math, strings	1300	x17591
1559D2	Mocha and Diana (Hard Version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers	2500	x2519
1559D1	Mocha and Diana (Easy Version) brute force, constructive algorithms, dsu, graphs, greedy, trees	1400	x13151
1559B	Mocha and Red and Blue dp, greedy	900	x21909
1558E	Down Below binary search, dfs and similar, graphs, greedy, meet-in-the-middle, shortest paths	3000	x428
1558C	Bottom-Tier Reversals constructive algorithms, greedy	2000	x3135
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2451
1557B	Moamen and k-subarrays greedy, sortings	1100	x22761
1556H	DIY Tree graphs, greedy, math, probabilities	3300	x318
1556E	Equilibrium data structures, dp, greedy	2200	x2505
1554D	Diane constructive algorithms, greedy, strings	1800	x9046
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x8484
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12374
1554A	Cherry greedy	800	x28532
1553D	Backspace dp, greedy, strings, two pointers	1500	x13267
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17248
1552E	Colors and Intervals constructive algorithms, data structures, greedy, sortings	2300	x1766
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5764
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x14928
1551C	Interesting Story greedy, sortings, strings	1500	x12840
1551B2	Wonderful Coloring - 2 binary search, constructive algorithms, data structures, greedy	1400	x14994
1551B1	Wonderful Coloring - 1 greedy, strings	800	x28579
1551A	Polycarp and Coins greedy, math	800	x48092
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x9913
1550B	Maximum Cost Deletion greedy, math	1000	x25617
1550A	Find The Array greedy, math	800	x27588
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23709
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x334
1548A	Web of Lies brute force, graphs, greedy	1400	x15975
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x15905
1547C	Pair Programming greedy, two pointers	1100	x21952
1547B	Alphabetical Strings greedy, implementation, strings	800	x25904
1546A	AquaMoon and Two Arrays brute force, greedy	800	x18057
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x392
1543B	Customising the Track combinatorics, greedy, math	900	x22613
1543A	Exciting Bets greedy, math, number theory	900	x26220
1541A	Pretty Permutations constructive algorithms, greedy, implementation	800	x28942
1540A	Great Graphs constructive algorithms, graphs, greedy, shortest paths, sortings	1400	x13650
1539F	Strange Array data structures, greedy, sortings	2600	x834
1539E	Game with Cards binary search, constructive algorithms, data structures, dp, greedy, implementation	2500	x920
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x11247
1539C	Stable Groups greedy, sortings	1200	x21110
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x19553
1538G	Gift Set binary search, greedy, math, ternary search	2100	x4341
1538B	Friends and Candies greedy, math	800	x30929
1538A	Stone Game brute force, dp, greedy	800	x35605
1537F	Figure Fixing constructive algorithms, dfs and similar, dsu, graphs, greedy, math	2200	x2352
1537E2	Erase and Extend (Hard Version) binary search, data structures, greedy, hashing, string suffix structures, strings, two pointers	2200	x4955
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12195
1537C	Challenging Cliffs constructive algorithms, greedy, implementation, math	1200	x26207
1537B	Bad Boy constructive algorithms, greedy, math	900	x27771
1537A	Arithmetic Array greedy, math	800	x35809
1536D	Omkar and Medians data structures, greedy, implementation	2000	x4545
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x2624
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16029
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x29485
1534F2	Falling Sand (Hard Version) dfs and similar, dp, graphs, greedy	3000	x508
1534F1	Falling Sand (Easy Version) dfs and similar, graphs, greedy	2500	x1182
1534E	Lost Array graphs, greedy, interactive, shortest paths	2300	x1840
1534B	Histogram Ugliness greedy, implementation, math	1100	x12344
1533F	Binary String Partition *special problem, binary search, greedy		x208
1533E	Chess Team Forming *special problem, binary search, data structures, greedy		x268
1530E	Minimax constructive algorithms, greedy, strings	2100	x2889
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x8870
1530C	Pursuit binary search, brute force, greedy, sortings	1200	x14205
1530A	Binary Decimal greedy, math	800	x20730
1529B	Sifid and Strange Subsequences greedy, math, sortings	1100	x20312
1529A	Eshag Loves Big Arrays constructive algorithms, greedy, math	800	x29335
1528C	Trees of Tranquillity data structures, dfs and similar, greedy, trees	2300	x2494
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x13766
1526C2	Potions (Hard Version) data structures, greedy	1600	x20838
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x21051
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x9336
1525C	Robot Collisions data structures, greedy, implementation, sortings	2000	x4320
1525B	Permutation Sort constructive algorithms, greedy	900	x24138
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8567
1521E	Nastia and a Beautiful Matrix binary search, constructive algorithms, dp, greedy	2700	x646
1521D	Nastia Plays with a Tree constructive algorithms, data structures, dfs and similar, dp, dsu, greedy, implementation, trees	2500	x1794
1520G	To Go Or Not To Go? brute force, dfs and similar, graphs, greedy, implementation, shortest paths	2200	x3461
1520E	Arranging The Sheep greedy, math	1400	x19808