Problemset - Codeforces

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Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
06:05:31
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Problems

#	Name
1761D	Carry Bit combinatorics, math	2100	x2442
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x9568
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x7330
1760F	Quests binary search, greedy, sortings	1500	x12168
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x4466
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3910
1759E	The Humanoid brute force, dp, sortings	1500	x10766
1759D	Make It Round brute force, number theory	1400	x13530
1758F	Decent Division constructive algorithms, data structures	3000	x171
1758E	Tick, Tock combinatorics, dfs and similar, dsu, graphs	2500	x842
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x7288
1758C	Almost All Multiples greedy, number theory	1400	x13600
1753F	Minecraft Series brute force, two pointers	3500	x205
1753E	N Machines binary search, brute force, greedy	3300	x332
1753D	The Beach constructive algorithms, dfs and similar, graphs, shortest paths	2400	x1750
1753C	Wish I Knew How to Sort dp, math, probabilities	2000	x4444
1753B	Factorial Divisibility math, number theory	1600	x12724
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x10300
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x82
1750G	Doping combinatorics, dp, math	3300	x248
1750F	Majority combinatorics, dp, math, strings	2700	x911
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1413
1750D	Count GCD combinatorics, math, number theory	1800	x5865
1750C	Complementary XOR constructive algorithms, implementation	1400	x9534
1749F	Distance to the Path data structures, dfs and similar, trees	2800	x511
1749E	Cactus Wall constructive algorithms, dfs and similar, graphs, shortest paths	2400	x1697
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5572
1749C	Number Game binary search, data structures, games, greedy, implementation	1400	x13915
1748F	Circular Xor Reversal bitmasks, constructive algorithms	3000	x335
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x1904
1748D	ConstructOR bitmasks, chinese remainder theorem, combinatorics, constructive algorithms, math, number theory	2100	x2799
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x11080
1748B	Diverse Substrings brute force, implementation, strings	1400	x15004
1747E	List Generation combinatorics, dp, math	2900	x510
1747D	Yet Another Problem binary search, bitmasks, constructive algorithms, data structures	1900	x4643
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x96
1746F	Kazaee data structures, hashing, probabilities	2800	x1723
1746E2	Joking (Hard Version) dp, interactive	3200	x395
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1434
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x4601
1744F	MEX vs MED math, two pointers	2000	x3079
1744E2	Divisible Numbers (hard version) brute force, math, number theory	1900	x5580
1744E1	Divisible Numbers (easy version) brute force, math, number theory	1500	x10833
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x255
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1488
1743E	FTL binary search, dp	2400	x1556
1743D	Problem with Random Tests brute force, dp, greedy, probabilities	1700	x7581
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x10704
1742F	Smaller constructive algorithms, greedy, strings	1500	x11627
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1497
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x2387
1741E	Sending a Sequence Over the Network dp	1600	x12183
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x113
1740H	MEX Tree Manipulation data structures, trees	3300	x232
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x185
1740F	Conditional Mix combinatorics, dp, math	2600	x797
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4324
1740D	Knowledge Cards constructive algorithms, data structures	1500	x8056
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x11007
1739F	Keyboard Design bitmasks, data structures, dp, string suffix structures, strings	2600	x531
1739E	Cleaning Robot bitmasks, dp	2400	x1224
1739D	Reset K Edges binary search, data structures, dfs and similar, graphs, greedy, trees	1900	x5153
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x9072
1738H	Palindrome Addicts data structures, strings	3300	x235
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x426
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1218
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1534
1738D	Permutation Addicts constructive algorithms, data structures, dfs and similar, dsu, graphs, trees	1900	x3431
1738C	Even Number Addicts dp, games, greedy, math	1500	x11147
1737G	Ela Takes Dancing Class binary search, data structures	3500	x116
1737F	Ela and Prime GCD constructive algorithms, math, number theory	3300	x123
1737E	Ela Goes Hiking combinatorics, dp, math, probabilities	2500	x928
1737D	Ela and the Wiring Wizard brute force, dp, graphs, greedy, implementation, shortest paths	2200	x1861
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5742
1736E	Swap and Take dp, greedy	2600	x710
1736D	Equal Binary Subsequences constructive algorithms, geometry, greedy, implementation, strings	2200	x2480
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1280
1735F	Pebbles and Beads data structures, geometry	2900	x230
1735E	House Planning constructive algorithms, data structures, graph matchings, greedy	2400	x1063
1735D	Meta-set brute force, combinatorics, data structures, hashing, math	1700	x5494
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9897
1734F	Zeros and Ones bitmasks, divide and conquer, dp, math	2500	x803
1734E	Rectangular Congruence constructive algorithms, number theory	2100	x2905
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6285
1733E	Conveyor constructive algorithms, dp, math	2700	x1226
1733D2	Zero-One (Hard Version) dp, greedy	2000	x4178
1733D1	Zero-One (Easy Version) constructive algorithms, greedy, math	1400	x13437
1732E	Location data structures, dp, math, number theory	2800	x457
1732D2	Balance (Hard version) brute force, data structures, number theory	2400	x1399
1732D1	Balance (Easy version) brute force, data structures, implementation, number theory	1500	x8649
1732C2	Sheikh (Hard Version) binary search, bitmasks, brute force, greedy, implementation, two pointers	2100	x2565
1732C1	Sheikh (Easy version) binary search, bitmasks, greedy, two pointers	1800	x5889
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x693
1731E	Graph Cost dp, greedy, math, number theory	2000	x2815
1731D	Valiant's New Map binary search, brute force, data structures, dp, two pointers	1700	x7129
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x9494
1730F	Almost Sorted bitmasks, data structures, dp	2700	x550
1730E	Maximums and Minimums combinatorics, data structures, divide and conquer, number theory	2700	x640
1730D	Prefixes and Suffixes constructive algorithms, strings, two pointers	2200	x2663
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x12627