Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
2 days
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Problems

#	Name
724G	Xor-matic Number of the Graph bitmasks, graphs, math, number theory, trees	2600	x1005
724C	Ray Tracing greedy, hashing, implementation, math, number theory, sortings	1800	x2117
724B	Batch Sort brute force, greedy, implementation, math	1500	x3982
723A	The New Year: Meeting Friends implementation, math, sortings	800	x71801
721D	Maxim and Array constructive algorithms, data structures, greedy, math	2000	x2300
721B	Passwords implementation, math, sortings, strings	1100	x11992
718C	Sasha and Array data structures, math, matrices	2300	x3399
718A	Efim and Strange Grade dp, implementation, math	1700	x4326
717H	Pokermon League challenge math, probabilities	2400	x418
717A	Festival Organization combinatorics, math, number theory	2900	x336
715E	Complete the Permutations combinatorics, fft, graphs, math	3400	x347
715A	Plus and Square Root constructive algorithms, math	1600	x5552
714A	Meeting of Old Friends implementation, math	1100	x10692
712E	Memory and Casinos data structures, math, probabilities	2500	x605
712D	Memory and Scores combinatorics, dp, math	2200	x1659
712C	Memory and De-Evolution greedy, math	1600	x5586
712A	Memory and Crow implementation, math	800	x11530
711E	ZS and The Birthday Paradox math, number theory, probabilities	2300	x1246
711D	Directed Roads combinatorics, dfs and similar, graphs, math	1900	x4370
710D	Two Arithmetic Progressions math, number theory	2500	x1169
710C	Magic Odd Square constructive algorithms, math	1500	x4998
708E	Student's Camp dp, math	3100	x940
708B	Recover the String constructive algorithms, greedy, implementation, math	1900	x3208
707C	Pythagorean Triples math, number theory	1500	x12325
705B	Spider Man games, math	1100	x9056
704C	Black Widow dp, graphs, implementation, math	2900	x458
703B	Mishka and trip implementation, math	1400	x5638
702D	Road to Post Office math	1900	x3253
702B	Powers of Two brute force, data structures, implementation, math	1500	x11343
701B	Cells Not Under Attack data structures, math	1200	x11590
700A	As Fast As Possible binary search, math	1900	x3148
698D	Limak and Shooting Points brute force, geometry, math	2600	x510
698C	LRU bitmasks, dp, math, probabilities	2400	x1283
697B	Barnicle brute force, implementation, math, strings	1400	x5672
697A	Pineapple Incident implementation, math	900	x12610
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x2054
696B	Puzzles dfs and similar, math, probabilities, trees	1700	x3396
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x5320
689C	Mike and Chocolate Thieves binary search, combinatorics, math	1700	x4939
688B	Lovely Palindromes constructive algorithms, math	1000	x30699
687B	Remainders Game chinese remainder theorem, math, number theory	1800	x5596
685C	Optimal Point binary search, math	2900	x577
685A	Robbers' watch brute force, combinatorics, dp, math	1700	x4149
683D	Chocolate Bar *special problem, math	1400	x319
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20682
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x312
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x12444
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x1915
678D	Iterated Linear Function math, number theory	1700	x4307
678C	Joty and Chocolate implementation, math, number theory	1600	x9118
678A	Johny Likes Numbers implementation, math	800	x12611
677B	Vanya and Food Processor implementation, math	1400	x7541
676E	The Last Fight Between Human and AI math	2400	x885
676B	Pyramid of Glasses implementation, math, math	1500	x5464
675B	Restoring Painting brute force, constructive algorithms, math	1400	x7306
675A	Infinite Sequence math	1100	x14778
670A	Holidays brute force, constructive algorithms, greedy, math	900	x16488
669A	Little Artem and Presents math	800	x10574
667A	Pouring Rain geometry, math	1100	x7795
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x579
664A	Complicated GCD math, number theory	800	x17519
663A	Rebus constructive algorithms, expression parsing, greedy, math	1800	x3261
662D	International Olympiad constructive algorithms, greedy, implementation, math	2000	x1618
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x1964
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x430
660E	Different Subsets For All Tuples combinatorics, math	2300	x1245
660A	Co-prime Array greedy, implementation, math, number theory	1200	x8581
659D	Bicycle Race geometry, implementation, math	1500	x6156
659A	Round House implementation, math	1000	x15404
653G	Move by Prime combinatorics, math, number theory	3100	x517
652F	Ants on a Circle constructive algorithms, math	2800	x521
652A	Gabriel and Caterpillar implementation, math	1400	x4570
651A	Joysticks dp, greedy, implementation, math	1100	x22552
650A	Watchmen data structures, geometry, math	1400	x15101
645F	Cowslip Collections combinatorics, math, number theory	2500	x761
645B	Mischievous Mess Makers greedy, math	1200	x3335
643F	Bears and Juice dp, math, meet-in-the-middle	2900	x677
643E	Bear and Destroying Subtrees dp, math, probabilities, trees	2700	x582
641D	Little Artem and Random Variable dp, implementation, math, probabilities	2400	x1048
639E	Bear and Paradox binary search, greedy, math, sortings	2800	x569
639C	Bear and Polynomials hashing, implementation, math	2200	x1189
638A	Home Numbers *special problem, constructive algorithms, math	1100	x3765
633G	Yash And Trees bitmasks, data structures, dfs and similar, math, number theory	2800	x730
633D	Fibonacci-ish brute force, dp, hashing, implementation, math	2000	x2570
633B	A Trivial Problem brute force, constructive algorithms, math, number theory	1300	x6557
633A	Ebony and Ivory brute force, math, number theory	1100	x12393
632E	Thief in a Shop divide and conquer, dp, fft, math	2400	x2596
632D	Longest Subsequence brute force, math, number theory	2100	x3448
630R	Game games, math	1200	x8340
630Q	Pyramids geometry, math	1700	x1217
630N	Forecast math	1300	x4525
630M	Turn geometry, math	1800	x1100
630L	Cracking the Code implementation, math	1400	x3458
630K	Indivisibility math, number theory	1500	x5068
630J	Divisibility math, number theory	1100	x10733
630I	Parking Lot combinatorics, math	1700	x6347
630H	Benches combinatorics, math	1400	x4757
630G	Challenge Pennants combinatorics, math	1600	x2654
630F	Selection of Personnel combinatorics, math	1300	x6603
630E	A rectangle math	1900	x2264