Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
07:24:45
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Problems

#	Name
1689C	Infected Tree dfs and similar, dp, trees	1600	x10706
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9318
1680E	Moving Chips bitmasks, dp, greedy	2000	x3650
1679D	Toss a Coin to Your Graph... binary search, dfs and similar, dp, graphs	1900	x4595
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6415
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8154
1675F	Vlad and Unfinished Business dfs and similar, dp, greedy, trees	1800	x5056
1674G	Remove Directed Edges dfs and similar, dp, graphs	2000	x2403
1647D	Madoka and the Best School in Russia constructive algorithms, dp, math, number theory	1900	x5143
1646D	Weight the Tree constructive algorithms, dfs and similar, dp, implementation, trees	2000	x3570
1637D	Yet Another Minimization Problem dp, greedy, math	1800	x7415
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x6043
1633D	Make Them Equal dp, greedy	1600	x13188
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12328
1627D	Not Adding brute force, dp, math, number theory	1900	x7888
1626C	Monsters And Spells binary search, data structures, dp, greedy, implementation, math, two pointers	1700	x10673
1625C	Road Optimization dp	1700	x10152
1624E	Masha-forgetful brute force, constructive algorithms, dp, hashing, implementation, strings	2000	x3976
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6395
1619E	MEX and Increments constructive algorithms, data structures, dp, greedy, implementation, math, sortings	1700	x8750
1616D	Keep the Average High dp, greedy, math	2000	x4737
1613D	MEX Sequences dp, math	1900	x4455
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2399
1611E2	Escape The Maze (hard version) dfs and similar, dp, greedy, shortest paths, trees	1900	x3676
1610D	Not Quite Lee combinatorics, dp, math, number theory	2000	x2600
1608C	Game Master data structures, dfs and similar, dp, graphs, greedy, two pointers	1700	x6450
1601B	Frog Traveler data structures, dfs and similar, dp, graphs, shortest paths, two pointers	1900	x4798
1594D	The Number of Imposters constructive algorithms, dfs and similar, dp, dsu, graphs	1700	x7154
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7667
1583C	Omkar and Determination data structures, dp	1700	x6836
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5309
1582E	Pchelyonok and Segments binary search, data structures, dp, greedy, math	2000	x3611
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3575
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2427
1572A	Book binary search, brute force, data structures, dp, graphs, implementation, sortings	1800	x8587
1571F	Kotlinforces *special problem, constructive algorithms, dp	2000	x178
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x327
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11885
1566E	Buds Re-hanging constructive algorithms, dfs and similar, dp, greedy, trees	2000	x4031
1562D1	Two Hundred Twenty One (easy version) data structures, dp, math	1700	x6202
1561D1	Up the Strip (simplified version) brute force, data structures, dp, math, number theory	1700	x5408
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4631
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8363
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11835
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6735
1551E	Fixed Points binary search, brute force, dp	2000	x3723
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12362
1535D	Playoff Tournament data structures, dfs and similar, dp, implementation, trees	1800	x7523
1528B	Kavi on Pairing Duty combinatorics, dp, math	1700	x8510
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x14015
1525D	Armchairs dp, flows, graph matchings, greedy	1800	x9434
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x14663
1517D	Explorer Space dp, graphs, shortest paths	1800	x7384
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11581
1513C	Add One dp, matrices	1600	x13338
1512G	Short Task brute force, dp, math, number theory	1700	x7871
1512F	Education brute force, dp, greedy, implementation	1900	x5982
1509C	The Sports Festival dp, greedy	1800	x11919
1506G	Maximize the Remaining String brute force, data structures, dp, greedy, strings	2000	x4116
1498C	Planar Reflections brute force, data structures, dp	1600	x9291
1497E1	Square-Free Division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x8067
1494C	1D Sokoban binary search, dp, greedy, implementation, two pointers	1900	x5249
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x6934
1491C	Pekora and Trampoline brute force, data structures, dp, greedy, implementation	1700	x7739
1479B1	Painting the Array I constructive algorithms, data structures, dp, greedy, implementation	1900	x6773
1476D	Journey dfs and similar, dp, dsu, implementation	1700	x8418
1476C	Longest Simple Cycle dp, graphs, greedy	1600	x11098
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6472
1475D	Cleaning the Phone binary search, dp, sortings, two pointers	1800	x9792
1473D	Program data structures, dp, implementation, strings	1700	x9361
1472E	Correct Placement binary search, data structures, dp, sortings, two pointers	1700	x7752
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x10523
1458B	Glass Half Spilled dp	2000	x3399
1455D	Sequence and Swaps dp, greedy, sortings	1600	x12028
1452D	Radio Towers combinatorics, dp, math	1600	x7790
1446B	Catching Cheaters dp, strings	1800	x7588
1442A	Extreme Subtraction constructive algorithms, dp, greedy	1800	x8594
1437C	Chef Monocarp dp, flows, graph matchings, greedy, math, sortings	1800	x10164
1427C	The Hard Work of Paparazzi dp	2000	x5491
1426F	Number of Subsequences combinatorics, dp, strings	2000	x5142
1422C	Bargain combinatorics, dp, math	1700	x8104
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4202
1413C	Perform Easily binary search, brute force, dp, implementation, sortings, two pointers	1900	x5554
1409E	Two Platforms binary search, dp, sortings, two pointers	1800	x7597
1408D	Searchlights binary search, brute force, data structures, dp, implementation, sortings, two pointers	2000	x4177
1404B	Tree Tag dfs and similar, dp, games, trees	1900	x7112
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x8887
1398D	Colored Rectangles dp, greedy, sortings	1800	x11055
1398C	Good Subarrays data structures, dp, math	1600	x24462
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13577
1394A	Boboniu Chats with Du dp, greedy, sortings, two pointers	1800	x6475
1392D	Omkar and Bed Wars dp, greedy	1700	x8476
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x4951
1389B	Array Walk brute force, dp, greedy	1600	x15915
1384B1	Koa and the Beach (Easy Version) brute force, dp, greedy	1900	x3855
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4781
1381B	Unmerge dp	1800	x8522
1379C	Choosing flowers binary search, brute force, data structures, dfs and similar, dp, greedy, sortings, two pointers	2000	x5436
1373D	Maximum Sum on Even Positions divide and conquer, dp, greedy, implementation	1600	x15065
1370D	Odd-Even Subsequence binary search, dp, dsu, greedy, implementation	2000	x9180