Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
13:24:13
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number theory

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Problems

#	Name
594D	REQ data structures, number theory	2500	x1603
585E	Present for Vitalik the Philatelist combinatorics, math, number theory	2900	x1066
585C	Alice, Bob, Oranges and Apples number theory	2400	x976
584D	Dima and Lisa brute force, math, number theory	1800	x9285
582D	Number of Binominal Coefficients dp, math, number theory	3300	x634
582C	Superior Periodic Subarrays number theory	2400	x739
582A	GCD Table constructive algorithms, greedy, number theory	1700	x7737
577A	Multiplication Table implementation, number theory	1000	x39516
576A	Vasya and Petya's Game math, number theory	1500	x13816
575H	Bots combinatorics, dp, math, number theory	1800	x1673
573A	Bear and Poker implementation, math, number theory	1300	x16509
568A	Primes or Palindromes? brute force, implementation, math, number theory	1600	x5040
566F	Clique in the Divisibility Graph dp, math, number theory	1500	x3607
559C	Gerald and Giant Chess combinatorics, dp, math, number theory	2200	x6442
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5467
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1956
547C	Mike and Foam bitmasks, combinatorics, dp, math, number theory	2300	x2808
546D	Soldier and Number Game constructive algorithms, dp, math, number theory	1700	x11716
542D	Superhero's Job dfs and similar, dp, hashing, math, number theory	2600	x509
520E	Pluses everywhere combinatorics, dp, math, number theory	2200	x1867
519C	A and B and Team Training greedy, implementation, math, number theory	1300	x19664
516E	Drazil and His Happy Friends math, number theory	3100	x501
515B	Drazil and His Happy Friends brute force, dsu, meet-in-the-middle, number theory	1300	x7432
500G	New Year Running number theory, trees	3200	x157
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x1110
498C	Array and Operations flows, graph matchings, number theory	2100	x3399
495B	Modular Equations math, number theory	1600	x6881
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2130
490C	Hacking Cypher brute force, math, number theory, strings	1700	x9059
487C	Prefix Product Sequence constructive algorithms, math, number theory	2300	x2763
483A	Counterexample brute force, implementation, math, number theory	1100	x22949
474F	Ant colony data structures, math, number theory	2100	x8510
472A	Design Tutorial: Learn from Math math, number theory	800	x59464
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1597
460B	Little Dima and Equation brute force, implementation, math, number theory	1500	x12306
456B	Fedya and Maths math, number theory	1200	x16542
451E	Devu and Flowers bitmasks, combinatorics, number theory	2300	x3587
449E	Jzzhu and Squares dp, math, number theory	2900	x285
449C	Jzzhu and Apples constructive algorithms, number theory	2500	x2253
448E	Divisors brute force, dfs and similar, implementation, number theory	2200	x1537
446C	DZY Loves Fibonacci Numbers data structures, math, number theory	2400	x3313
439C	Devu and Partitioning of the Array brute force, constructive algorithms, implementation, number theory	1700	x3857
438E	The Child and Binary Tree combinatorics, divide and conquer, fft, number theory	3100	x1878
414B	Mashmokh and ACM combinatorics, dp, number theory	1400	x22101
414A	Mashmokh and Numbers constructive algorithms, number theory	1500	x9777
402D	Upgrading Array dp, greedy, math, number theory	1800	x2605
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x4141
396B	On Sum of Fractions math, number theory		x1075
396A	On Number of Decompositions into Multipliers combinatorics, math, number theory		x1501
385C	Bear and Prime Numbers binary search, brute force, data structures, dp, implementation, math, number theory	1700	x9598
375A	Divisible by Seven math, number theory	1600	x4813
371B	Fox Dividing Cheese math, number theory	1300	x11293
364C	Beautiful Set brute force, number theory	2300	x596
361B	Levko and Permutation constructive algorithms, math, number theory	1200	x8024
360D	Levko and Sets number theory	2600	x403
359C	Prime Number math, number theory	1900	x3023
354C	Vasya and Beautiful Arrays brute force, dp, number theory	2100	x3047
353C	Find Maximum implementation, math, number theory	1600	x4816
348B	Apple Tree dfs and similar, number theory, trees	2100	x2076
346E	Doodle Jump math, number theory	3000	x263
346A	Alice and Bob games, math, number theory	1600	x8659
343A	Rational Resistance math, number theory	1600	x8711
338D	GCD Table chinese remainder theorem, math, number theory	2900	x1144
337E	Divisor Tree brute force, number theory, trees	2200	x1018
337C	Quiz binary search, greedy, math, matrices, number theory	1600	x4878
337B	Routine Problem greedy, math, number theory	1400	x9321
336D	Vasily the Bear and Beautiful Strings combinatorics, math, number theory	2100	x972
336C	Vasily the Bear and Sequence brute force, greedy, implementation, number theory	1800	x2447
313A	Ilya and Bank Account implementation, number theory	900	x55883
306C	White, Black and White Again combinatorics, number theory	2100	x477
303D	Rotatable Number math, number theory	2600	x296
303C	Minimum Modular brute force, graphs, math, number theory	2400	x875
300E	Empire Strikes Back binary search, math, number theory	2300	x1038
299A	Ksusha and Array brute force, number theory, sortings	1000	x7995
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x361
294C	Shaass and Lights combinatorics, number theory	1900	x3792
293C	Cube Problem brute force, math, number theory	2400	x568
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6554
283D	Cows and Cool Sequences dp, math, number theory	2400	x531
279E	Beautiful Decomposition dp, games, greedy, number theory	1900	x1435
271E	Three Horses constructive algorithms, math, number theory	2200	x485
271B	Prime Matrix binary search, brute force, math, number theory	1300	x12942
267A	Subtractions math, number theory	900	x7417
264B	Good Sequences dp, number theory	1500	x10125
251C	Number Transformation dp, greedy, number theory	2000	x1025
248B	Chilly Willy math, number theory	1400	x5297
237C	Primes on Interval binary search, number theory, two pointers	1600	x5713
236B	Easy Number Challenge implementation, number theory	1300	x14106
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x775
235A	LCM Challenge number theory	1600	x17624
230B	T-primes binary search, implementation, math, number theory	1300	x74337
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x864
225E	Unsolvable math, number theory	2100	x798
225B	Well-known Numbers binary search, greedy, number theory	1600	x3145
223C	Partial Sums combinatorics, math, number theory	1900	x1549
222C	Reducing Fractions implementation, math, number theory, sortings	1800	x2176
216E	Martian Luck math, number theory	2000	x577
215E	Periodical Numbers combinatorics, dp, number theory	2100	x550
200E	Tractor College implementation, math, number theory, ternary search	2400	x344
199A	Hexadecimal's theorem brute force, constructive algorithms, implementation, number theory	900	x26208