Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
38:39:00
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Problems

#	Name
507B	Amr and Pins geometry, math	1400	x23764
500C	New Year Book Reading constructive algorithms, greedy, implementation, math	1600	x5737
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8679
497D	Gears brute force, geometry, math	2900	x222
496A	Minimum Difficulty brute force, implementation, math	900	x16066
495B	Modular Equations math, number theory	1600	x6433
493E	Vasya and Polynomial math	2800	x471
493D	Vasya and Chess constructive algorithms, games, math	1700	x9471
492E	Vanya and Field math	2000	x1585
492D	Vanya and Computer Game binary search, implementation, math, sortings	1800	x3114
492B	Vanya and Lanterns binary search, implementation, math, sortings	1200	x70741
491B	New York Hotel greedy, math	2100	x534
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2069
490C	Hacking Cypher brute force, math, number theory, strings	1700	x8889
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2075
487C	Prefix Product Sequence constructive algorithms, math, number theory	2300	x2501
486E	LIS of Sequence data structures, dp, greedy, hashing, math	2200	x2013
486D	Valid Sets dfs and similar, dp, math, trees	2100	x3848
486A	Calculating Function implementation, math	800	x108604
485A	Factory implementation, math, matrices	1400	x8080
484C	Strange Sorting implementation, math	2600	x579
484B	Maximum Value binary search, math, sortings, two pointers	2100	x6749
483B	Friends and Presents binary search, math	1800	x3985
483A	Counterexample brute force, implementation, math, number theory	1100	x22098
479A	Expression brute force, math	1000	x88130
478B	Random Teams combinatorics, constructive algorithms, greedy, math	1300	x35105
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4309
476C	Dreamoon and Sums math	1600	x5402
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x28903
476A	Dreamoon and Stairs implementation, math	1000	x40896
475D	CGCDSSQ brute force, data structures, math	2000	x4428
474F	Ant colony data structures, math, number theory	2100	x7604
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x247
472A	Design Tutorial: Learn from Math math, number theory	800	x56716
471C	MUH and House of Cards binary search, brute force, greedy, math	1700	x3531
468E	Permanent dp, graph matchings, math, meet-in-the-middle	3100	x304
468C	Hack it! binary search, constructive algorithms, math	2500	x2230
468A	24 Game constructive algorithms, greedy, math	1500	x7742
466B	Wonder Room brute force, math	2000	x4584
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1380
463B	Caisa and Pylons brute force, implementation, math	1100	x25648
461D	Appleman and Complicated Task dsu, math	2800	x354
460E	Roland and Rose brute force, geometry, math, sortings	2700	x333
460D	Little Victor and Set brute force, constructive algorithms, math	2300	x969
460B	Little Dima and Equation brute force, implementation, math, number theory	1500	x12065
460A	Vasya and Socks brute force, implementation, math	900	x44113
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6059
457E	Flow Optimality constructive algorithms, flows, math	3000	x80
457D	Bingo! combinatorics, math, probabilities	2700	x264
457A	Golden System math, meet-in-the-middle	1700	x1260
456B	Fedya and Maths math, number theory	1200	x15945
452C	Magic Trick combinatorics, math, probabilities	2100	x1395
451D	Count Good Substrings math	2000	x4632
451C	Predict Outcome of the Game brute force, implementation, math	1700	x3296
450B	Jzzhu and Sequences implementation, math	1300	x25242
449E	Jzzhu and Squares dp, math, number theory	2900	x280
449A	Jzzhu and Chocolate greedy, math	1700	x3865
446E	DZY Loves Bridges math, matrices	3100	x117
446D	DZY Loves Games math, matrices, probabilities	2800	x377
446C	DZY Loves Fibonacci Numbers data structures, math, number theory	2400	x3154
444A	DZY Loves Physics greedy, math	1600	x3362
442B	Andrey and Problem greedy, math, probabilities	1800	x4844
441E	Valera and Number bitmasks, dp, math, probabilities	2400	x667
441D	Valera and Swaps constructive algorithms, dsu, graphs, implementation, math, string suffix structures	2100	x1059
439E	Devu and Birthday Celebration combinatorics, dp, math	2100	x1471
438D	The Child and Sequence data structures, math	2300	x7781
436B	Om Nom and Spiders implementation, math	1400	x3039
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2395
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2102
427E	Police Patrol greedy, implementation, math, ternary search	2000	x1392
424C	Magic Formulas math	1600	x5174
417E	Square Table constructive algorithms, math, probabilities	2400	x765
417A	Elimination dp, implementation, math	1500	x2862
416D	Population Size greedy, implementation, math	2400	x901
415B	Mashmokh and Tokens binary search, greedy, implementation, math	1500	x6102
413C	Jeopardy! greedy, math	1400	x2299
407C	Curious Array brute force, combinatorics, implementation, math	2500	x949
407A	Triangle brute force, geometry, implementation, math	1600	x4737
406E	Hamming Triples implementation, math, two pointers	2800	x225
405D	Toy Sum greedy, implementation, math	1700	x3081
405C	Unusual Product implementation, math	1600	x4562
404B	Marathon implementation, math	1500	x2893
402E	Strictly Positive Matrix graphs, math	2200	x2075
402D	Upgrading Array dp, greedy, math, number theory	1800	x2513
402A	Nuts greedy, math	1100	x4501
401E	Olympic Games math	2500	x166
401B	Sereja and Contests greedy, implementation, math	1200	x4375
401A	Vanya and Cards implementation, math	800	x15851
400C	Inna and Huge Candy Matrix implementation, math	1500	x2864
397B	On Corruption and Numbers constructive algorithms, implementation, math		x735
396E	On Iteration of One Well-Known Function math		x144
396D	On Sum of Number of Inversions in Permutations combinatorics, math		x406
396B	On Sum of Fractions math, number theory		x1033
396A	On Number of Decompositions into Multipliers combinatorics, math, number theory		x1460
394D	Physical Education and Buns brute force, implementation, math		x261
394B	Very Beautiful Number math		x567
392C	Yet Another Number Sequence combinatorics, math, matrices		x574
392A	Blocked Points math		x962
389A	Fox and Number Game greedy, math	1000	x13810
388D	Fox and Perfect Sets math	2700	x434