Problemset - Codeforces

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IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)
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Problems

#	Name
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x4034
1759E	The Humanoid brute force, dp, sortings	1500	x11197
1759D	Make It Round brute force, number theory	1400	x14419
1759C	Thermostat greedy, math, shortest paths	1100	x18138
1759B	Lost Permutation math	800	x22487
1759A	Yes-Yes? implementation, strings	800	x30574
1758F	Decent Division constructive algorithms, data structures	3000	x181
1758E	Tick, Tock combinatorics, dfs and similar, dsu, graphs	2500	x863
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x7506
1758C	Almost All Multiples greedy, number theory	1400	x13990
1758B	XOR = Average constructive algorithms	900	x21778
1758A	SSeeeeiinngg DDoouubbllee constructive algorithms, strings	800	x25515
1754B	Kevin and Permutation constructive algorithms, greedy, math	800	x19083
1754A	Technical Support greedy	800	x23469
1753F	Minecraft Series brute force, two pointers	3500	x216
1753E	N Machines binary search, brute force, greedy	3300	x335
1753D	The Beach constructive algorithms, dfs and similar, graphs, shortest paths	2400	x1796
1753C	Wish I Knew How to Sort dp, math, probabilities	2000	x4619
1753B	Factorial Divisibility math, number theory	1600	x13178
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x10660
1753A1	Make Nonzero Sum (easy version) constructive algorithms, dp, greedy	1300	x15322
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x85
1750G	Doping combinatorics, dp, math	3300	x252
1750F	Majority combinatorics, dp, math, strings	2700	x944
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1478
1750D	Count GCD combinatorics, math, number theory	1800	x6159
1750C	Complementary XOR constructive algorithms, implementation	1400	x9729
1750B	Maximum Substring brute force, greedy, implementation	800	x16350
1750A	Indirect Sort constructive algorithms, implementation, math	800	x17233
1749F	Distance to the Path data structures, dfs and similar, trees	2800	x528
1749E	Cactus Wall constructive algorithms, dfs and similar, graphs, shortest paths	2400	x1795
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5700
1749C	Number Game binary search, data structures, games, greedy, implementation	1400	x14383
1749B	Death's Blessing greedy	900	x21299
1749A	Cowardly Rooks greedy, implementation	800	x22522
1748F	Circular Xor Reversal bitmasks, constructive algorithms	3000	x343
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x2061
1748D	ConstructOR bitmasks, chinese remainder theorem, combinatorics, constructive algorithms, math, number theory	2100	x2890
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x11486
1748B	Diverse Substrings brute force, implementation, strings	1400	x15382
1748A	The Ultimate Square math	800	x24307
1747E	List Generation combinatorics, dp, math	2900	x529
1747D	Yet Another Problem binary search, bitmasks, constructive algorithms, data structures	1900	x4808
1747C	Swap Game games	1200	x21678
1747B	BAN BAN constructive algorithms	900	x23662
1747A	Two Groups constructive algorithms, greedy	800	x25239
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x97
1746F	Kazaee data structures, hashing, probabilities	2800	x2050
1746E2	Joking (Hard Version) dp, interactive	3200	x402
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1472
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x4738
1746C	Permutation Operations constructive algorithms, greedy, implementation, math	1300	x13079
1746B	Rebellion constructive algorithms, greedy, two pointers	800	x17498
1746A	Maxmina constructive algorithms, greedy	800	x20062
1744F	MEX vs MED math, two pointers	2000	x3214
1744E2	Divisible Numbers (hard version) brute force, math, number theory	1900	x5757
1744E1	Divisible Numbers (easy version) brute force, math, number theory	1500	x11214
1744D	Divisibility by 2^n greedy, math, sortings	1200	x22041
1744C	Traffic Light binary search, implementation, two pointers	1000	x29279
1744B	Even-Odd Increments implementation, math	800	x23802
1744A	Number Replacement greedy, implementation	800	x27504
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x263
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1564
1743E	FTL binary search, dp	2400	x1665
1743D	Problem with Random Tests brute force, dp, greedy, probabilities	1700	x7730
1743C	Save the Magazines constructive algorithms, dp, greedy	1100	x19481
1743B	Permutation Value constructive algorithms, greedy	800	x22386
1743A	Password brute force, combinatorics, implementation, math	800	x27144
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x11269
1742F	Smaller constructive algorithms, greedy, strings	1500	x12194
1742E	Scuza binary search, greedy, math	1200	x26520
1742D	Coprime brute force, greedy, number theory	1100	x25021
1742C	Stripes implementation	900	x34240
1742B	Increasing greedy, implementation, sortings	800	x50358
1742A	Sum implementation	800	x78431
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1572
1741F	Multi-Colored Segments binary search, data structures, math, sortings	2000	x2529
1741E	Sending a Sequence Over the Network dp	1600	x13126
1741D	Masha and a Beautiful Tree dfs and similar, divide and conquer, graphs, sortings, trees	1300	x15670
1741C	Minimize the Thickness brute force, greedy, math, two pointers	1100	x18038
1741B	Funny Permutation constructive algorithms, math	800	x25700
1741A	Compare T-Shirt Sizes implementation, implementation, strings	800	x31344
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x115
1740H	MEX Tree Manipulation data structures, trees	3300	x240
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x190
1740F	Conditional Mix combinatorics, dp, math	2600	x839
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4477
1740D	Knowledge Cards constructive algorithms, data structures	1500	x8302
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x11313
1740B	Jumbo Extra Cheese 2 geometry, greedy, sortings	800	x13878
1740A	Factorise N+M constructive algorithms, number theory	800	x20676
1739F	Keyboard Design bitmasks, data structures, dp, string suffix structures, strings	2600	x557
1739E	Cleaning Robot bitmasks, dp	2400	x1255
1739D	Reset K Edges binary search, data structures, dfs and similar, graphs, greedy, trees	1900	x5315
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x9290
1739B	Array Recovery constructive algorithms, greedy, math	1100	x22798
1739A	Immobile Knight implementation	800	x22997
1738H	Palindrome Addicts data structures, strings	3300	x243
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x473
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1261