Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
2 days
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Problems

#	Name
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x9569
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x8750
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x7952
1938H	Pho Restaurant	1600	x1824
1932E	Final Countdown implementation, math, number theory	1600	x6583
1928C	Physical Education Lesson brute force, math, number theory	1600	x7348
1921E	Eat the Chip brute force, games, greedy, math	1600	x8808
1920C	Partitioning the Array brute force, math, number theory	1600	x11679
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9296
1910C	Poisonous Swamp special problem, special problem, implementation, implementation	1600	x565
1910B	Security Guard *special problem, greedy	1600	x574
1907E	Good Triples brute force, combinatorics, number theory	1600	x8677
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x5593
1899F	Alex's whims constructive algorithms, graphs, greedy, shortest paths, trees	1600	x6578
1886C	Decreasing String implementation, strings	1600	x10114
1878D	Reverse Madness data structures, greedy	1600	x7522
1875D	Jellyfish and Mex dp	1600	x7482
1862E	Kolya and Movie Theatre constructive algorithms, data structures, greedy	1600	x9501
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9396
1857F	Sum and Product binary search, data structures, math	1600	x10326
1856C	To Become Max binary search, brute force, data structures, dp	1600	x10958
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x9762
1843E	Tracking Segments binary search, brute force, data structures, two pointers	1600	x10885
1840E	Character Blocking data structures, hashing, implementation	1600	x7474
1833E	Round Dance dfs and similar, dsu, graphs, shortest paths	1600	x10177
1829G	Hits Different data structures, dp, implementation, math	1600	x9312
1822E	Making Anti-Palindromes greedy, math, strings	1600	x9635
1811D	Umka and a Long Flight constructive algorithms, implementation, math	1600	x6995
1806C	Sequence Master brute force, constructive algorithms, math	1600	x7164
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8076
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x8979
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7187
1796C	Maximum Set binary search, math	1600	x9713
1795D	Triangle Coloring combinatorics, math	1600	x8406
1787C	Remove the Bracket dp, greedy, math	1600	x6671
1781C	Equal Frequencies brute force, constructive algorithms, greedy, implementation, sortings, strings	1600	x7005
1779C	Least Prefix Sum data structures, greedy	1600	x11757
1778C	Flexible String bitmasks, brute force, strings	1600	x7622
1775C	Interesting Sequence bitmasks, math	1600	x9571
1774D	Same Count One brute force, constructive algorithms, greedy, implementation, two pointers	1600	x7385
1771C	Hossam and Trainees greedy, math, number theory	1600	x8952
1766D	Lucky Chains math, number theory	1600	x8310
1753B	Factorial Divisibility math, number theory	1600	x11980
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x10386
1741E	Sending a Sequence Over the Network dp	1600	x10707
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x11772
1722E	Counting Rectangles brute force, data structures, dp, implementation	1600	x9980
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8563
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x12795
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x9945
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x12251
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x8635
1689C	Infected Tree dfs and similar, dp, trees	1600	x10441
1687A	The Enchanted Forest brute force, greedy	1600	x9930
1680C	Binary String binary search, greedy, strings, two pointers	1600	x9461
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8094
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x7234
1665C	Tree Infection binary search, greedy, sortings, trees	1600	x8024
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x6942
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8089
1658D1	388535 (Easy Version) bitmasks, math	1600	x8735
1633D	Make Them Equal dp, greedy	1600	x12939
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12218
1623C	Balanced Stone Heaps binary search, greedy	1600	x11260
1622C	Set or Decrease binary search, brute force, greedy, sortings	1600	x12298
1615C	Menorah brute force, graphs, greedy, math	1600	x8029
1612D	X-Magic Pair math, number theory	1600	x8807
1610C	Keshi Is Throwing a Party binary search, greedy	1600	x10638
1609D	Social Network dsu, graphs, greedy, implementation, trees	1600	x6897
1607E	Robot on the Board 1 implementation	1600	x9015
1603B	Moderate Modular Mode constructive algorithms, math, number theory	1600	x13043
1593E	Gardener and Tree brute force, data structures, dfs and similar, greedy, implementation, trees	1600	x11611
1582D	Vupsen, Pupsen and 0 constructive algorithms, math	1600	x10089
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11815
1566D2	Seating Arrangements (hard version) data structures, greedy, implementation, sortings, two pointers	1600	x7684
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11707
1542C	Strange Function math, number theory	1600	x13477
1539D	PriceFixed binary search, greedy, implementation, sortings, two pointers	1600	x11254
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12209
1530D	Secret Santa constructive algorithms, flows, graphs, greedy, math	1600	x8874
1528A	Parsa's Humongous Tree dfs and similar, divide and conquer, dp, greedy, trees	1600	x13793
1527C	Sequence Pair Weight hashing, implementation, math	1600	x13082
1526C2	Potions (Hard Version) data structures, greedy	1600	x20889
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8574
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x10881
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x14533
1514C	Product 1 Modulo N greedy, number theory	1600	x14208
1513C	Add One dp, matrices	1600	x13145
1512E	Permutation by Sum brute force, greedy, math	1600	x9983
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11019
1505B	DMCA *special problem, implementation, number theory	1600	x5993
1503A	Balance the Bits constructive algorithms, greedy	1600	x12973
1498C	Planar Reflections brute force, data structures, dp	1600	x9152
1497C2	k-LCM (hard version) constructive algorithms, math	1600	x16386
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x11586
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x9078
1481C	Fence Painting brute force, constructive algorithms, greedy	1600	x11273
1476C	Longest Simple Cycle dp, graphs, greedy	1600	x11026
1475E	Advertising Agency combinatorics, math, sortings	1600	x12828
1469C	Building a Fence dp, greedy, implementation, two pointers	1600	x10474

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