Problemset - Codeforces

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Pinely Round 4 (Div. 1 + Div. 2)
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number theory

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Problems

#	Name
1310F	Bad Cryptography math, number theory	3400	x72
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x84
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x87
1190F	Tokitsukaze and Powers number theory, probabilities	3400	x92
756F	Long number expression parsing, math, number theory	3400	x92
1994H	Fortnite combinatorics, constructive algorithms, games, greedy, hashing, interactive, math, number theory, strings		x97
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x98
774F	Pens And Days Of Week *special problem, binary search, number theory	2700	x106
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x111
1488G	Painting Numbers *special problem, data structures, greedy, number theory	2500	x122
1737F	Ela and Prime GCD constructive algorithms, math, number theory	3300	x123
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x129
1346G	Two IP Cameras *special problem, math, number theory	2300	x134
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x139
1916G	Optimizations From Chelsu divide and conquer, dp, number theory, trees	3500	x143
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x148
1718F	Burenka, an Array and Queries data structures, math, number theory	3300	x152
500G	New Year Running number theory, trees	3200	x157
1906G	Grid Game 2 games, number theory	2900	x159
1575C	Cyclic Sum data structures, fft, number theory	3000	x159
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x161
1796F	Strange Triples brute force, math, number theory	2900	x170
774G	Perfectionist Arkadiy *special problem, number theory	2700	x176
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x177
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x185
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x187
913G	Power Substring math, number theory	3200	x198
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x201
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x202
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x206
819C	Mister B and Beacons on Field number theory	2900	x206
774E	Big Number and Remainder *special problem, math, number theory	2300	x210
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x220
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x222
1103E	Radix sum fft, math, number theory	3400	x224
819D	Mister B and Astronomers number theory	2900	x224
1223G	Wooden Raft binary search, math, number theory	3200	x229
64E	Prime Segment *special problem, brute force, math, number theory	1800	x239
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x240
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x256
346E	Doodle Jump math, number theory	3000	x260
1016G	Appropriate Team bitmasks, math, number theory	2700	x261
449E	Jzzhu and Squares dp, math, number theory	2900	x285
303D	Rotatable Number math, number theory	2600	x293
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x302
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x308
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x309
1468L	Prime Divisors Selection binary search, greedy, math, number theory	2700	x318
1644F	Basis combinatorics, fft, math, number theory	2900	x319
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x319
73E	Morrowindows math, number theory	2400	x329
180B	Divisibility Rules math, number theory	2300	x331
1182F	Maximum Sine binary search, data structures, number theory	2700	x334
1815E	Bosco and Particle dp, math, number theory, strings	3100	x335
717A	Festival Organization combinatorics, math, number theory	2900	x339
200E	Tractor College implementation, math, number theory, ternary search	2400	x340
1806F1	GCD Master (easy version) greedy, math, number theory, sortings	2900	x345
1030G	Linear Congruential Generator number theory	2900	x352
1418F	Equal Product data structures, math, number theory, two pointers	3000	x362
1845F	Swimmers in the Pool dp, fft, math, number theory	2800	x364
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x384
1552H	Guess the Perimeter binary search, interactive, number theory	3300	x385
1562F	Tubular Bells interactive, math, number theory, probabilities	2900	x388
185D	Visit of the Great math, number theory	2600	x392
360D	Levko and Sets number theory	2600	x399
1732E	Location data structures, dp, math, number theory	2800	x422
1630E	Expected Components combinatorics, math, number theory, probabilities	2900	x433
698F	Coprime Permutation combinatorics, number theory	3000	x434
1725E	Electrical Efficiency combinatorics, data structures, dp, math, number theory, trees	2500	x453
1835D	Doctor's Brown Hypothesis dfs and similar, graphs, math, number theory	2900	x468
306C	White, Black and White Again combinatorics, number theory	2100	x471
93E	Lostborn dp, math, number theory	2600	x471
1798F	Gifts from Grandfather Ahmed dp, math, number theory	2500	x481
271E	Three Horses constructive algorithms, math, number theory	2200	x482
722F	Cyclic Cipher chinese remainder theorem, data structures, implementation, number theory, two pointers	2800	x489
516E	Drazil and His Happy Friends math, number theory	3100	x491
1879F	Last Man Standing brute force, data structures, number theory	2800	x495
1109E	Sasha and a Very Easy Test data structures, number theory	2700	x498
542D	Superhero's Job dfs and similar, dp, hashing, math, number theory	2600	x502
1045B	Space Isaac hashing, number theory	2400	x507
1436F	Sum Over Subsets combinatorics, math, number theory	2800	x514
896D	Nephren Runs a Cinema chinese remainder theorem, combinatorics, math, number theory	2900	x523
653G	Move by Prime combinatorics, math, number theory	3100	x524
283D	Cows and Cool Sequences dp, math, number theory	2400	x529
1630F	Making It Bipartite flows, graph matchings, graphs, number theory	3400	x534
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x536
215E	Periodical Numbers combinatorics, dp, number theory	2100	x545
1656H	Equal LCM Subsets data structures, math, number theory	3200	x550
1801F	Another n-dimensional chocolate bar dp, math, meet-in-the-middle, number theory	2700	x559
963C	Cutting Rectangle brute force, math, number theory	2600	x563
293C	Cube Problem brute force, math, number theory	2400	x564
852F	Product transformation combinatorics, math, number theory	2200	x565
216E	Martian Luck math, number theory	2000	x565
986F	Oppa Funcan Style Remastered graphs, math, number theory, shortest paths	3300	x572
1582G	Kuzya and Homework data structures, number theory	2600	x574
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x580
364C	Beautiful Set brute force, number theory	2300	x590
703E	Mishka and Divisors dp, number theory	2600	x592
1257G	Divisor Set divide and conquer, fft, greedy, math, number theory	2600	x594
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x595

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