Problemset - Codeforces

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Problems

#	Name
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14309
1581B	Diameter of Graph constructive algorithms, graphs, greedy, math	1200	x11021
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x758
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3542
1579E2	Array Optimization by Deque data structures, greedy	1700	x6340
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x20870
1579D	Productive Meeting constructive algorithms, graphs, greedy	1400	x15386
1579C	Ticks greedy, implementation	1500	x10267
1578L	Labyrinth binary search, dsu, greedy	2400	x1051
1574D	The Strongest Build binary search, brute force, data structures, dfs and similar, graphs, greedy, hashing, implementation	2000	x4354
1574C	Slay the Dragon binary search, greedy, sortings, ternary search	1300	x16517
1574B	Combinatorics Homework combinatorics, greedy, math	1100	x17015
1573B	Swaps greedy, math, sortings	1400	x14137
1573A	Countdown greedy	800	x20910
1572D	Bridge Club flows, graph matchings, graphs, greedy	2800	x470
1572C	Paint dp, greedy	2700	x1388
1572B	Xor of 3 brute force, constructive algorithms, greedy, two pointers	2500	x1738
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x320
1567D	Expression Evaluation Error constructive algorithms, greedy, implementation, math	2000	x4403
1567B	MEXor Mixup bitmasks, greedy	1000	x21423
1566G	Four Vertices constructive algorithms, data structures, graphs, greedy, implementation, shortest paths	3100	x327
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x927
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4012
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7691
1566D1	Seating Arrangements (easy version) data structures, greedy, sortings	1100	x13761
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17002
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19085
1566A	Median Maximization binary search, greedy, math	800	x22716
1562E	Rescue Niwen! dp, greedy, string suffix structures, strings	2500	x1325
1562A	The Miracle and the Sleeper greedy, math	800	x25180
1561C	Deep Down Below binary search, greedy, sortings	1300	x13476
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4191
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x5906
1560D	Make a Power of Two greedy, math, strings	1300	x17629
1559D2	Mocha and Diana (Hard Version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, trees, two pointers	2500	x2527
1559D1	Mocha and Diana (Easy Version) brute force, constructive algorithms, dsu, graphs, greedy, trees	1400	x13201
1559B	Mocha and Red and Blue dp, greedy	900	x21960
1558E	Down Below binary search, dfs and similar, graphs, greedy, meet-in-the-middle, shortest paths	3000	x434
1558C	Bottom-Tier Reversals constructive algorithms, greedy	2000	x3151
1557D	Ezzat and Grid data structures, dp, greedy	2200	x2463
1557B	Moamen and k-subarrays greedy, sortings	1100	x22800
1556H	DIY Tree graphs, greedy, math, probabilities	3300	x321
1556E	Equilibrium data structures, dp, greedy	2200	x2510
1554D	Diane constructive algorithms, greedy, strings	1800	x9068
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x8515
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12403
1554A	Cherry greedy	800	x28581
1553D	Backspace dp, greedy, strings, two pointers	1500	x13312
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17288
1552E	Colors and Intervals constructive algorithms, data structures, greedy, sortings	2300	x1771
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5769
1552B	Running for Gold combinatorics, graphs, greedy, sortings	1500	x14955
1551C	Interesting Story greedy, sortings, strings	1500	x12880
1551B2	Wonderful Coloring - 2 binary search, constructive algorithms, data structures, greedy	1400	x15036
1551B1	Wonderful Coloring - 1 greedy, strings	800	x28630
1551A	Polycarp and Coins greedy, math	800	x48357
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x9929
1550B	Maximum Cost Deletion greedy, math	1000	x25692
1550A	Find The Array greedy, math	800	x27633
1549B	Gregor and the Pawn Game dfs and similar, dp, flows, graph matchings, graphs, greedy, implementation	800	x23748
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x337
1548A	Web of Lies brute force, graphs, greedy	1400	x16012
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x16010
1547C	Pair Programming greedy, two pointers	1100	x22006
1547B	Alphabetical Strings greedy, implementation, strings	800	x25954
1546A	AquaMoon and Two Arrays brute force, greedy	800	x18072
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x393
1543B	Customising the Track combinatorics, greedy, math	900	x22645
1543A	Exciting Bets greedy, math, number theory	900	x26348
1541A	Pretty Permutations constructive algorithms, greedy, implementation	800	x28973
1540A	Great Graphs constructive algorithms, graphs, greedy, shortest paths, sortings	1400	x13669
1539F	Strange Array data structures, greedy, sortings	2600	x836
1539E	Game with Cards binary search, constructive algorithms, data structures, dp, greedy, implementation	2500	x924
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x11268
1539C	Stable Groups greedy, sortings	1200	x21189
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x19584
1538G	Gift Set binary search, greedy, math, ternary search	2100	x4354
1538B	Friends and Candies greedy, math	800	x31007
1538A	Stone Game brute force, dp, greedy	800	x35717
1537F	Figure Fixing constructive algorithms, dfs and similar, dsu, graphs, greedy, math	2200	x2355
1537E2	Erase and Extend (Hard Version) binary search, data structures, greedy, hashing, string suffix structures, strings, two pointers	2200	x4974
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12236
1537C	Challenging Cliffs constructive algorithms, greedy, implementation, math	1200	x26288
1537B	Bad Boy constructive algorithms, greedy, math	900	x27924
1537A	Arithmetic Array greedy, math	800	x35975
1536D	Omkar and Medians data structures, greedy, implementation	2000	x4553
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x2629
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16070
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x29571
1534F2	Falling Sand (Hard Version) dfs and similar, dp, graphs, greedy	3000	x515
1534F1	Falling Sand (Easy Version) dfs and similar, graphs, greedy	2500	x1190
1534E	Lost Array graphs, greedy, interactive, shortest paths	2300	x1846
1534B	Histogram Ugliness greedy, implementation, math	1100	x12358
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	x2894
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x8885
1530C	Pursuit binary search, brute force, greedy, sortings	1200	x14228
1530A	Binary Decimal greedy, math	800	x20751
1529B	Sifid and Strange Subsequences greedy, math, sortings	1100	x20332