Problemset - Codeforces

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Codeforces Round 1134 (Div. 4)
4 days
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Problems

#	Name
1771C	Hossam and Trainees greedy, math, number theory	1600	x12145
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x179
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x198
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x1120
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1669
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x4548
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x9882
1769D3	Игра в Девятку III *special problem, brute force	2300	x131
1769D2	Игра в Девятку II *special problem, brute force	2200	x216
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x428
1768F	Wonderful Jump dp, greedy	2900	x1511
1768E	Partial Sorting combinatorics, math, number theory	2300	x2398
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x9565
1767F	Two Subtrees data structures, trees	3100	x500
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x1362
1767C	Count Binary Strings data structures, dp	2100	x3240
1766F	MCF flows	2800	x443
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1578
1766D	Lucky Chains math, number theory	1600	x11122
1765L	Project Manager brute force, data structures, implementation	2400	x708
1765J	Hero to Zero graph matchings, math	2900	x404
1765I	Infinite Chess implementation, shortest paths	2800	x325
1765H	Hospital Queue binary search, graphs, greedy, implementation	2200	x1662
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x511
1765F	Chemistry Lab dp, geometry, probabilities	2200	x814
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x5041
1765C	Card Guessing combinatorics, dp, probabilities	2600	x724
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x905
1764H	Doremy's Paint 2 data structures	3400	x308
1764G3	Doremy's Perfect DS Class (Hard Version) binary search, interactive	3300	x699
1764G2	Doremy's Perfect DS Class (Medium Version) binary search, interactive	3000	x815
1764G1	Doremy's Perfect DS Class (Easy Version) binary search, interactive	2900	x868
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x1294
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1483
1764D	Doremy's Pegging Game combinatorics, dp, math	2000	x3273
1763F	Edge Queries data structures, dfs and similar, dp, dsu, graphs, trees	3000	x984
1763E	Node Pairs dp, graphs, math, number theory	2200	x2315
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x2441
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x8103
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x165
1762F	Good Pairs binary search, data structures, dp	2600	x1043
1762E	Tree Sum combinatorics, math, trees	2600	x1008
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x4663
1761G	Centroid Guess interactive, probabilities, trees	3500	x161
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x125
1761F1	Anti-median (Easy Version) dp, math	3100	x358
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x2256
1761D	Carry Bit combinatorics, math	2100	x2928
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x11256
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x5768
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x4605
1758F	Decent Division constructive algorithms, data structures	3000	x263
1758E	Tick, Tock combinatorics, dfs and similar, dsu, graphs	2500	x1100
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x8860
1753F	Minecraft Series brute force, two pointers	3500	x258
1753E	N Machines binary search, brute force, greedy	3300	x459
1753D	The Beach constructive algorithms, dfs and similar, graphs, shortest paths	2400	x2208
1753C	Wish I Knew How to Sort dp, math, probabilities	2000	x5601
1753B	Factorial Divisibility math, number theory	1600	x15487
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x130
1750G	Doping combinatorics, dp, math	3300	x520
1750F	Majority combinatorics, dp, math, strings	2700	x1314
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1739
1750D	Count GCD combinatorics, math, number theory	1800	x7873
1749F	Distance to the Path data structures, dfs and similar, trees	2800	x687
1749E	Cactus Wall constructive algorithms, dfs and similar, graphs, shortest paths	2400	x2216
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x6537
1748F	Circular Xor Reversal bitmasks, constructive algorithms	3000	x423
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x3027
1748D	ConstructOR bitmasks, chinese remainder theorem, combinatorics, constructive algorithms, math, number theory	2100	x3384
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x13506
1747E	List Generation combinatorics, dp, math	2900	x742
1747D	Yet Another Problem binary search, bitmasks, constructive algorithms, data structures	1900	x5830
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x126
1746F	Kazaee data structures, hashing, probabilities	2800	x2952
1746E2	Joking (Hard Version) dp, interactive	3200	x630
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1868
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x5324
1744F	MEX vs MED math, two pointers	2000	x4062
1744E2	Divisible Numbers (hard version) brute force, math, number theory	1900	x7176
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x459
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1943
1743E	FTL binary search, dp	2400	x1966
1743D	Problem with Random Tests brute force, dp, greedy, probabilities	1700	x8569
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x2020
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x3049
1741E	Sending a Sequence Over the Network dp	1600	x19504
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x324
1740H	MEX Tree Manipulation data structures, trees	3300	x511
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x424
1740F	Conditional Mix combinatorics, dp, math	2600	x1187
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x5200
1739F	Keyboard Design bitmasks, data structures, dp, string suffix structures, strings	2600	x700
1739E	Cleaning Robot bitmasks, dp	2400	x1551
1739D	Reset K Edges binary search, data structures, dfs and similar, graphs, greedy, trees	1900	x6751
1738H	Palindrome Addicts data structures, strings	3300	x321
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x595
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1441
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1891
1738D	Permutation Addicts constructive algorithms, data structures, dfs and similar, dsu, graphs, trees	1900	x3808

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