Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
30:51:49
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Problems

#	Name
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2483
1658D2	388535 (Hard Version) bitmasks, brute force, data structures, math	2300	x2431
1073E	Segment Sum bitmasks, combinatorics, dp, math	2300	x2375
1536E	Omkar and Forest combinatorics, graphs, math, shortest paths	2300	x2337
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x2292
1270E	Divide Points constructive algorithms, geometry, math	2300	x2202
1592D	Hemose in ICPC ? binary search, dfs and similar, implementation, interactive, math, number theory, trees	2300	x2156
1322C	Instant Noodles graphs, hashing, math, number theory	2300	x2116
1553F	Pairwise Modulo data structures, math	2300	x2095
1834E	MEX of LCM binary search, data structures, implementation, math, number theory	2300	x2043
1712E1	LCM Sum (easy version) binary search, brute force, combinatorics, math, number theory, two pointers	2300	x2037
1783E	Game of the Year brute force, data structures, math, number theory	2300	x2017
1654E	Arithmetic Operations brute force, data structures, graphs, math	2300	x1989
1139D	Steps to One dp, math, number theory, probabilities	2300	x1977
1603C	Extreme Extension dp, greedy, math, number theory	2300	x1971
1625D	Binary Spiders bitmasks, data structures, implementation, math, sortings, trees	2300	x1964
1550D	Excellent Arrays binary search, combinatorics, constructive algorithms, implementation, math, sortings, two pointers	2300	x1779
1768E	Partial Sorting combinatorics, math, number theory	2300	x1768
995C	Leaving the Bar brute force, data structures, geometry, greedy, math, sortings	2300	x1726
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x1696
1042E	Vasya and Magic Matrix dp, math, probabilities	2300	x1681
1148E	Earth Wind and Fire constructive algorithms, greedy, math, sortings, two pointers	2300	x1655
1728E	Red-Black Pepper brute force, data structures, greedy, math, number theory	2300	x1646
1917D	Yet Another Inversions Problem combinatorics, data structures, dp, implementation, math, number theory	2300	x1644
1217E	Sum Queries? data structures, greedy, implementation, math	2300	x1639
1610E	AmShZ and G.O.A.T. binary search, brute force, greedy, implementation, math	2300	x1624
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1607
1861E	Non-Intersecting Subpermutations combinatorics, dp, implementation, math	2300	x1606
1101G	(Zero XOR Subset)-less math, matrices	2300	x1603
1204E	Natasha, Sasha and the Prefix Sums combinatorics, dp, math, number theory	2300	x1575
1096F	Inversion Expectation dp, math, probabilities	2300	x1563
1411E	Poman Numbers bitmasks, greedy, math, strings	2300	x1553
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1526
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1511
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1495
845G	Shortest Path Problem? dfs and similar, graphs, math	2300	x1490
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1479
1927G	Paint Charges data structures, dp, greedy, math	2300	x1478
1843F2	Omsk Metro (hard version) data structures, dfs and similar, divide and conquer, dp, math, trees	2300	x1465
1276C	Beautiful Rectangle brute force, combinatorics, constructive algorithms, data structures, greedy, math	2300	x1464
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1449
1167F	Scalar Queries combinatorics, data structures, math, sortings	2300	x1448
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1445
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1426
1513E	Cost Equilibrium combinatorics, constructive algorithms, math, sortings	2300	x1409
584E	Anton and Ira constructive algorithms, greedy, math	2300	x1395
1623D	Robot Cleaner Revisit implementation, math, probabilities	2300	x1347
993E	Nikita and Order Statistics chinese remainder theorem, fft, math	2300	x1336
1156F	Card Bag dp, math, probabilities	2300	x1326
601C	Kleofáš and the n-thlon dp, math, probabilities	2300	x1285
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1260
711E	ZS and The Birthday Paradox math, number theory, probabilities	2300	x1239
793C	Mice problem geometry, implementation, math, sortings	2300	x1230
660E	Different Subsets For All Tuples combinatorics, math	2300	x1226
938E	Max History combinatorics, math	2300	x1223
830C	Bamboo Partition brute force, data structures, implementation, math, number theory, sortings, two pointers	2300	x1182
772C	Vulnerable Kerbals constructive algorithms, dp, graphs, math, number theory	2300	x1182
1797E	Li Hua and Array brute force, data structures, dsu, math, number theory, two pointers	2300	x1180
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1152
915G	Coprime Arrays math, number theory	2300	x1125
898F	Restoring the Expression brute force, hashing, math	2300	x1121
300E	Empire Strikes Back binary search, math, number theory	2300	x1024
768F	Barrels and boxes brute force, combinatorics, math, number theory, probabilities	2300	x998
460D	Little Victor and Set brute force, constructive algorithms, math	2300	x970
1200F	Graph Traveler brute force, data structures, dfs and similar, dp, graphs, implementation, math, number theory	2300	x909
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x861
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x851
126D	Fibonacci Sums dp, math	2300	x805
1425D	Danger of Mad Snakes combinatorics, dp, math	2300	x802
1039A	Timetable constructive algorithms, data structures, greedy, math	2300	x771
596D	Wilbur and Trees dp, math, probabilities, sortings	2300	x672
167C	Wizards and Numbers games, math	2300	x656
385E	Bear in the Field math, matrices	2300	x554
316E3	Summer Homework data structures, math	2300	x504
1600F	Party Organization brute force, math, probabilities	2300	x432
37D	Lesson Timetable combinatorics, dp, math	2300	x387
42D	Strange town constructive algorithms, math	2300	x385
316E2	Summer Homework data structures, math	2300	x380
50E	Square Equation Roots math	2300	x342
180B	Divisibility Rules math, number theory	2300	x325
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x301
40C	Berland Square implementation, math	2300	x239
774E	Big Number and Remainder *special problem, math, number theory	2300	x206
1346G	Two IP Cameras *special problem, math, number theory	2300	x130
446C	DZY Loves Fibonacci Numbers data structures, math, number theory	2400	x3171
932E	Team Work combinatorics, dp, math	2400	x2683
632E	Thief in a Shop divide and conquer, dp, fft, math	2400	x2547
1348E	Phoenix and Berries brute force, dp, greedy, math	2400	x1979
1628D2	Game on Sum (Hard Version) combinatorics, dp, games, math	2400	x1970
1392F	Omkar and Landslide binary search, constructive algorithms, data structures, greedy, math	2400	x1940
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1937
1527D	MEX Tree combinatorics, dfs and similar, implementation, math, trees	2400	x1823
1114F	Please, another Queries on Array? bitmasks, data structures, divide and conquer, math, number theory	2400	x1809
24D	Broken robot dp, math, probabilities	2400	x1787
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1785
1617D2	Too Many Impostors (hard version) constructive algorithms, implementation, interactive, math	2400	x1704
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1649
1592E	Bored Bakry bitmasks, greedy, math, two pointers	2400	x1542
1830C	Hyperregular Bracket Strings combinatorics, greedy, hashing, math, number theory, sortings	2400	x1514
1718C	Tonya and Burenka-179 data structures, greedy, math, number theory	2400	x1512