Problemset - Codeforces

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Codeforces Round #726 (Div. 2)
3 days

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Difficulty: —

number theory

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Problems

#	Name
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x55
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x67
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x117
1264F	Beautiful Fibonacci Problem constructive algorithms, number theory	3500	x168
1310F	Bad Cryptography math, number theory	3400	x39
1190F	Tokitsukaze and Powers number theory, probabilities	3400	x55
756F	Long number expression parsing, math, number theory	3400	x60
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x98
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x107
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x108
1103E	Radix sum fft, math, number theory	3400	x138
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x140
986F	Oppa Funcan Style Remastered graphs, math, number theory, shortest paths	3300	x239
582D	Number of Binominal Coefficients dp, math, number theory	3300	x295
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x37
500G	New Year Running number theory, trees	3200	x75
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x115
1223G	Wooden Raft binary search, math, number theory	3200	x133
913G	Power Substring math, number theory	3200	x137
755G	PolandBall and Many Other Balls combinatorics, divide and conquer, dp, fft, math, number theory	3200	x425
1184A3	Heidi Learns Hashing (Hard) fft, math, number theory	3100	x63
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x199
653G	Move by Prime combinatorics, math, number theory	3100	x251
516E	Drazil and His Happy Friends math, number theory	3100	x265
809E	Surprise me! divide and conquer, math, number theory, trees	3100	x412
438E	The Child and Binary Tree combinatorics, divide and conquer, fft, number theory	3100	x1086
698F	Coprime Permutation combinatorics, number theory	3000	x139
346E	Doodle Jump math, number theory	3000	x166
1418F	Equal Product data structures, math, number theory, two pointers	3000	x206
819D	Mister B and Astronomers number theory	2900	x128
819C	Mister B and Beacons on Field number theory	2900	x165
717A	Festival Organization math, number theory	2900	x180
449E	Jzzhu and Squares dp, math, number theory	2900	x196
896D	Nephren Runs a Cinema chinese remainder theorem, combinatorics, math, number theory	2900	x249
1030G	Linear Congruential Generator number theory	2900	x264
1198F	GCD Groups 2 greedy, number theory, probabilities	2900	x383
1285F	Classical? binary search, combinatorics, number theory	2900	x565
585E	Present for Vitalik the Philatelist combinatorics, math, number theory	2900	x637
338D	GCD Table chinese remainder theorem, math, number theory	2900	x647
1436F	Sum Over Subsets combinatorics, math, number theory	2800	x281
722F	Cyclic Cipher chinese remainder theorem, data structures, implementation, number theory, two pointers	2800	x311
986E	Prince's Problem brute force, data structures, math, number theory, trees	2800	x469
1208G	Polygons greedy, math, number theory	2800	x481
633G	Yash And Trees bitmasks, data structures, dfs and similar, math, number theory	2800	x490
671C	Ultimate Weirdness of an Array data structures, number theory	2800	x520
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x570
774G	Perfectionist Arkadiy *special problem, number theory	2700	x77
774F	Pens And Days Of Week *special problem, binary search, number theory	2700	x80
1016G	Appropriate Team bitmasks, math, number theory	2700	x165
1468L	Prime Divisors Selection binary search, greedy, math, number theory	2700	x218
1182F	Maximum Sine binary search, data structures, number theory	2700	x225
838D	Airplane Arrangements math, number theory	2700	x264
1109E	Sasha and a Very Easy Test data structures, number theory	2700	x323
870F	Paths data structures, number theory	2700	x343
995E	Number Clicker divide and conquer, graphs, meet-in-the-middle, number theory	2700	x392
1422F	Boring Queries data structures, math, number theory	2700	x423
1034C	Region Separation combinatorics, dp, number theory, trees	2700	x467
1515G	Phoenix and Odometers dfs and similar, graphs, math, number theory	2700	x527
1292D	Chaotic V. dp, graphs, greedy, math, number theory, trees	2700	x565
961G	Partitions combinatorics, math, number theory	2700	x601
906D	Power Tower chinese remainder theorem, math, number theory	2700	x907
303D	Rotatable Number math, number theory	2600	x196
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x211
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x249
185D	Visit of the Great math, number theory	2600	x269
360D	Levko and Sets number theory	2600	x291
93E	Lostborn dp, math, number theory	2600	x307
1257G	Divisor Set divide and conquer, fft, greedy, math, number theory	2600	x403
542D	Superhero's Job dfs and similar, dp, hashing, math, number theory	2600	x415
963C	Cutting Rectangle brute force, math, number theory	2600	x437
703E	Mishka and Divisors dp, number theory	2600	x444
1398G	Running Competition bitmasks, fft, math, number theory	2600	x461
982E	Billiard geometry, number theory	2600	x470
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x507
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x533
763C	Timofey and remoduling brute force, implementation, math, number theory	2600	x568
724G	Xor-matic Number of the Graph bitmasks, graphs, math, number theory, trees	2600	x617
1278F	Cards combinatorics, dp, math, number theory, probabilities	2600	x800
1406E	Deleting Numbers interactive, math, number theory	2600	x1076
1325E	Ehab's REAL Number Theory Problem brute force, dfs and similar, graphs, number theory, shortest paths	2600	x1307
1488G	Painting Numbers *special problem, data structures, greedy, number theory	2500	x73
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x248
645F	Cowslip Collections combinatorics, math, number theory	2500	x477
710D	Two Arithmetic Progressions math, number theory	2500	x692
792E	Colored Balls greedy, math, number theory	2500	x740
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x838
757E	Bash Plays with Functions brute force, combinatorics, dp, number theory	2500	x845
1097F	Alex and a TV Show bitmasks, combinatorics, number theory	2500	x866
594D	REQ data structures, number theory	2500	x898
1174E	Ehab and the Expected GCD Problem combinatorics, dp, math, number theory	2500	x908
1497E2	Square-free division (hard version) data structures, dp, greedy, math, number theory, two pointers	2500	x912
1497D	Genius bitmasks, dp, graphs, number theory	2500	x973
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x1229
1305F	Kuroni and the Punishment math, number theory, probabilities	2500	x1339
449C	Jzzhu and Apples constructive algorithms, number theory	2500	x1739
55D	Beautiful numbers dp, number theory	2500	x2032
73E	Morrowindows math, number theory	2400	x243
200E	Tractor College implementation, math, number theory, ternary search	2400	x256
1045B	Space Isaac hashing, number theory	2400	x369
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x375

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