Problemset - Codeforces

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Codeforces Round #716 (Div. 2)
06:08:43
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number theory

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Problems

#	Name
1513D	GCD and MST constructive algorithms, dsu, graphs, greedy, number theory, sortings	2000	x2221
1512G	Short Task brute force, dp, math, number theory	1700	x2976
1511B	GCD Length constructive algorithms, math, number theory	1100	x12151
1510D	Digits dp, math, number theory	2100	x928
1505D	Xenolith? Hippodrome? number theory		x301
1505B	DMCA implementation, number theory		x3484
1500B	Two chandeliers binary search, brute force, chinese remainder theorem, math, number theory	2200	x1315
1499D	The Number of Pairs dp, math, number theory	2100	x3039
1497E2	Square-free division (hard version) data structures, dp, greedy, math, number theory, two pointers	2500	x806
1497E1	Square-free division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x4751
1497D	Genius bitmasks, dp, graphs, number theory	2500	x867
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x224
1493D	GCD of an Array brute force, data structures, hashing, implementation, math, number theory, sortings, two pointers	2100	x2888
1491E	Fib-tree brute force, dfs and similar, divide and conquer, number theory, trees	2400	x1363
1488G	Painting Numbers *special problem, data structures, greedy, number theory	2500	x67
1487D	Pythagorean Triples binary search, brute force, math, number theory	1500	x9558
1487B	Cat Cycle math, number theory	1200	x11823
1485D	Multiples and Power Differences constructive algorithms, graphs, math, number theory	2200	x3362
1485C	Floor and Mod binary search, brute force, math, number theory	1700	x5900
1485A	Add and Divide brute force, greedy, math, number theory	1000	x13281
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x57
1477A	Nezzar and Board constructive algorithms, math, number theory	1800	x3970
1475G	Strange Beauty dp, math, number theory, sortings	1900	x3634
1475A	Odd Divisor math, number theory	900	x25166
1474B	Different Divisors binary search, constructive algorithms, greedy, math, number theory	1000	x16082
1473B	String LCM brute force, math, number theory, strings	1000	x18038
1471A	Strange Partition greedy, math, number theory	900	x16775
1470B	Strange Definition bitmasks, graphs, hashing, math, number theory	1900	x4460
1469D	Ceil Divisions brute force, constructive algorithms, math, number theory	1700	x6384
1468L	Prime Divisors Selection binary search, greedy, math, number theory	2700	x205
1468F	Full Turn geometry, hashing, number theory	1700	x2269
1462D	Add to Neighbour and Remove greedy, math, number theory	1400	x10002
1458A	Row GCD math, number theory	1600	x8329
1455A	Strange Functions math, number theory	800	x19547
1454D	Number into Sequence constructive algorithms, math, number theory	1300	x12282
1444A	Division brute force, math, number theory	1500	x8233
1436F	Sum Over Subsets combinatorics, math, number theory	2800	x257
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x811
1423K	Lonely Numbers binary search, math, number theory, two pointers	1600	x2526
1422F	Boring Queries data structures, math, number theory	2700	x389
1419E	Decryption constructive algorithms, implementation, math, number theory	2100	x2489
1418F	Equal Product data structures, math, number theory, two pointers	3000	x194
1411B	Fair Numbers brute force, number theory	1000	x11892
1409C	Yet Another Array Restoration brute force, math, number theory	1200	x16323
1407B	Big Vova brute force, greedy, math, number theory	1300	x12185
1406E	Deleting Numbers interactive, math, number theory	2600	x1044
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x533
1401D	Maximum Distributed Tree dfs and similar, dp, greedy, implementation, math, number theory, sortings, trees	1800	x6308
1401C	Mere Array constructive algorithms, math, number theory, sortings	1300	x15770
1398G	Running Competition bitmasks, fft, math, number theory	2600	x443
1397B	Power Sequence brute force, math, number theory, sortings	1500	x10728
1396A	Multiples of Length constructive algorithms, greedy, number theory	1600	x10527
1389E	Calendar Ambiguity math, number theory	2200	x2393
1389A	LCM Problem constructive algorithms, greedy, math, number theory	800	x23468
1388A	Captain Flint and Crew Recruitment brute force, greedy, math, number theory	800	x20680
1379B	Dubious Cyrpto binary search, brute force, math, number theory	1500	x9321
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x54
1372B	Omkar and Last Class of Math greedy, math, number theory	1300	x17228
1371E2	Asterism (Hard Version) binary search, combinatorics, dp, math, number theory, sortings	2300	x1866
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4035
1370C	Number Game games, math, number theory	1400	x15377
1370B	GCD Compression constructive algorithms, math, number theory	1100	x17797
1370A	Maximum GCD greedy, implementation, math, number theory	800	x26731
1367E	Necklace Assembly brute force, dfs and similar, dp, graphs, greedy, number theory	1900	x3966
1366D	Two Divisors constructive algorithms, math, number theory	2000	x6582
1364A	XXXXX brute force, data structures, number theory, two pointers	1200	x17081
1360D	Buying Shovels math, number theory	1300	x18331
1359E	Modular Stability combinatorics, math, number theory	2000	x4248
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x518
1350B	Orac and Models dp, math, number theory	1400	x13370
1349A	Orac and LCM data structures, math, number theory	1600	x10634
1346G	Two IP Cameras *special problem, math, number theory	2300	x106
1344A	Hilbert's Hotel math, number theory, sortings	1600	x11762
1342C	Yet Another Counting Problem math, number theory	1600	x10632
1334E	Divisor Paths combinatorics, graphs, greedy, math, number theory	2200	x1897
1333F	Kate and imperfection greedy, implementation, math, number theory, sortings, two pointers	2200	x3167
1332B	Composite Coloring brute force, constructive algorithms, greedy, math, number theory	1400	x12807
1331B	Limericks math, number theory		x6447
1327D	Infinite Path brute force, dfs and similar, graphs, math, number theory	2200	x2490
1326A	Bad Ugly Numbers constructive algorithms, number theory	1000	x19832
1325E	Ehab's REAL Number Theory Problem brute force, dfs and similar, graphs, number theory, shortest paths	2600	x1286
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x8134
1325A	EhAb AnD gCd constructive algorithms, greedy, number theory	800	x23547
1324A	Yet Another Tetris Problem implementation, number theory	900	x19451
1322C	Instant Noodles graphs, hashing, math, number theory	2300	x1302
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x11369
1312A	Two Regular Polygons geometry, greedy, math, number theory	800	x19593
1310F	Bad Cryptography math, number theory	3400	x38
1305F	Kuroni and the Punishment math, number theory, probabilities	2500	x1297
1305C	Kuroni and Impossible Calculation brute force, combinatorics, math, number theory	1600	x9058
1295D	Same GCDs math, number theory	1800	x5711
1294C	Product of Three Numbers greedy, math, number theory	1300	x17698
1292D	Chaotic V. dp, graphs, greedy, math, number theory, trees	2700	x549
1285F	Classical? binary search, combinatorics, number theory	2900	x545
1285C	Fadi and LCM brute force, math, number theory	1400	x13438
1278F	Cards combinatorics, dp, math, number theory, probabilities	2600	x763
1277B	Make Them Odd greedy, number theory	1200	x9410
1266C	Diverse Matrix constructive algorithms, greedy, math, number theory	1400	x7493
1264F	Beautiful Fibonacci Problem constructive algorithms, number theory	3500	x145
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x9515

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