Problemset - Codeforces

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Codeforces Round (Div. 1 + Div. 2)
46:11:11
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Problems

#	Name
715E	Complete the Permutations combinatorics, fft, graphs, math	3400	x345
715A	Plus and Square Root constructive algorithms, math	1600	x5547
714A	Meeting of Old Friends implementation, math	1100	x10688
712E	Memory and Casinos data structures, math, probabilities	2500	x603
712D	Memory and Scores combinatorics, dp, math	2200	x1639
712C	Memory and De-Evolution greedy, math	1600	x5569
712A	Memory and Crow implementation, math	800	x11527
711E	ZS and The Birthday Paradox math, number theory, probabilities	2300	x1244
711D	Directed Roads combinatorics, dfs and similar, graphs, math	1900	x4368
710D	Two Arithmetic Progressions math, number theory	2500	x1165
710C	Magic Odd Square constructive algorithms, math	1500	x4992
708E	Student's Camp dp, math	3100	x935
708B	Recover the String constructive algorithms, greedy, implementation, math	1900	x3206
707C	Pythagorean Triples math, number theory	1500	x12315
705B	Spider Man games, math	1100	x9052
704C	Black Widow dp, graphs, implementation, math	2900	x457
703B	Mishka and trip implementation, math	1400	x5632
702D	Road to Post Office math	1900	x3251
702B	Powers of Two brute force, data structures, implementation, math	1500	x11324
701B	Cells Not Under Attack data structures, math	1200	x11587
700A	As Fast As Possible binary search, math	1900	x3145
698D	Limak and Shooting Points brute force, geometry, math	2600	x505
698C	LRU bitmasks, dp, math, probabilities	2400	x1280
697B	Barnicle brute force, implementation, math, strings	1400	x5668
697A	Pineapple Incident implementation, math	900	x12600
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x2053
696B	Puzzles dfs and similar, math, probabilities, trees	1700	x3391
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x5311
689C	Mike and Chocolate Thieves binary search, combinatorics, math	1700	x4915
688B	Lovely Palindromes constructive algorithms, math	1000	x30369
687B	Remainders Game chinese remainder theorem, math, number theory	1800	x5576
685C	Optimal Point binary search, math	2900	x576
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4146
683D	Chocolate Bar *special problem, math	1400	x319
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20624
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x311
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x12413
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x1908
678D	Iterated Linear Function math, number theory	1700	x4289
678C	Joty and Chocolate implementation, math, number theory	1600	x9097
678A	Johny Likes Numbers implementation, math	800	x12595
677B	Vanya and Food Processor implementation, math	1400	x7540
676E	The Last Fight Between Human and AI math	2400	x884
676B	Pyramid of Glasses implementation, math, math	1500	x5460
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7302
675A	Infinite Sequence math	1100	x14769
670A	Holidays brute force, constructive algorithms, greedy, math	900	x16458
669A	Little Artem and Presents math	800	x10567
667A	Pouring Rain geometry, math	1100	x7790
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x577
664A	Complicated GCD math, number theory	800	x17490
663A	Rebus constructive algorithms, expression parsing, greedy, math	1800	x3256
662D	International Olympiad constructive algorithms, greedy, implementation, math	2000	x1616
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x1960
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x429
660E	Different Subsets For All Tuples combinatorics, math	2300	x1237
660A	Co-prime Array greedy, implementation, math, number theory	1200	x8555
659D	Bicycle Race geometry, implementation, math	1500	x6150
659A	Round House implementation, math	1000	x15391
653G	Move by Prime combinatorics, math, number theory	3100	x516
652F	Ants on a Circle constructive algorithms, math	2800	x517
652A	Gabriel and Caterpillar implementation, math	1400	x4560
651A	Joysticks dp, greedy, implementation, math	1100	x22533
650A	Watchmen data structures, geometry, math	1400	x15076
645F	Cowslip Collections combinatorics, math, number theory	2500	x759
645B	Mischievous Mess Makers greedy, math	1200	x3333
643F	Bears and Juice dp, math, meet-in-the-middle	2900	x676
643E	Bear and Destroying Subtrees dp, math, probabilities, trees	2700	x580
641D	Little Artem and Random Variable dp, implementation, math, probabilities	2400	x1047
639E	Bear and Paradox binary search, greedy, math, sortings	2800	x568
639C	Bear and Polynomials hashing, implementation, math	2200	x1188
638A	Home Numbers *special problem, constructive algorithms, math	1100	x3760
633G	Yash And Trees bitmasks, data structures, dfs and similar, math, number theory	2800	x722
633D	Fibonacci-ish brute force, dp, hashing, implementation, math	2000	x2568
633B	A Trivial Problem brute force, constructive algorithms, math, number theory	1300	x6548
633A	Ebony and Ivory brute force, math, number theory	1100	x12374
632E	Thief in a Shop divide and conquer, dp, fft, math	2400	x2585
632D	Longest Subsequence brute force, math, number theory	2100	x3401
630R	Game games, math	1200	x8324
630Q	Pyramids geometry, math	1700	x1213
630N	Forecast math	1300	x4518
630M	Turn geometry, math	1800	x1097
630L	Cracking the Code implementation, math	1400	x3453
630K	Indivisibility math, number theory	1500	x5050
630J	Divisibility math, number theory	1100	x10711
630I	Parking Lot combinatorics, math	1700	x6330
630H	Benches combinatorics, math	1400	x4750
630G	Challenge Pennants combinatorics, math	1600	x2637
630F	Selection of Personnel combinatorics, math	1300	x6586
630E	A rectangle math	1900	x2257
630D	Hexagons! math	1100	x9981
630C	Lucky Numbers combinatorics, math	1100	x20487
630B	Moore's Law math	1200	x7119
628A	Tennis Tournament implementation, math	1000	x6200
627A	XOR Equation dp, math	1700	x3964
626G	Raffles data structures, dp, greedy, math	3100	x517
626E	Simple Skewness binary search, math, ternary search	2400	x1296
626C	Block Towers brute force, greedy, math, number theory	1600	x4290
626B	Cards constructive algorithms, dp, math	1300	x6526
625D	Finals in arithmetic constructive algorithms, implementation, math	2400	x623