Problemset - Codeforces

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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
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Problems

#	Name
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x12031
1515G	Phoenix and Odometers dfs and similar, graphs, math, number theory	2700	x1031
1515E	Phoenix and Computers combinatorics, dp, math	2200	x3647
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x25115
1515A	Phoenix and Gold constructive algorithms, greedy, math	800	x20261
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x25452
1514A	Perfectly Imperfect Array math, number theory	800	x24287
1513E	Cost Equilibrium combinatorics, constructive algorithms, math, sortings	2300	x1525
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x14956
1512G	Short Task brute force, dp, math, number theory	1700	x8310
1512E	Permutation by Sum brute force, greedy, math	1600	x10564
1511E	Colorings and Dominoes combinatorics, dp, greedy, math	2100	x2614
1511B	GCD Length constructive algorithms, math, number theory	1100	x23028
1510J	Japanese Game constructive algorithms, math	2700	x532
1510I	Is It Rated? greedy, interactive, math, probabilities	2700	x493
1510D	Digits dp, math, number theory	2100	x1938
1506F	Triangular Paths constructive algorithms, graphs, math, shortest paths, sortings	2000	x3299
1506A	Strange Table math	800	x30764
1505F	Math *special problem, math	2200	x1515
1504B	Flip the Bits constructive algorithms, greedy, implementation, math	1200	x18815
1503E	2-Coloring combinatorics, dp, math	3100	x715
1500B	Two chandeliers binary search, brute force, chinese remainder theorem, math, number theory	2200	x2095
1500A	Going Home brute force, hashing, implementation, math	1800	x8912
1499E	Chaotic Merge combinatorics, dp, math, strings	2400	x1523
1499D	The Number of Pairs dp, math, number theory	2100	x5937
1499C	Minimum Grid Path brute force, data structures, greedy, math	1500	x12718
1499A	Domino on Windowsill combinatorics, constructive algorithms, math	800	x21310
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x929
1498A	GCD Sum brute force, math	800	x23360
1497E2	Square-Free Division (hard version) data structures, dp, greedy, math, number theory, two pointers	2500	x1747
1497E1	Square-Free Division (easy version) data structures, dp, greedy, math, number theory, two pointers	1700	x8414
1497C2	k-LCM (hard version) constructive algorithms, math	1600	x17466
1497C1	k-LCM (easy version) constructive algorithms, math	1200	x26077
1497B	M-arrays constructive algorithms, greedy, math	1200	x20240
1496B	Max and Mex math	1100	x17604
1495D	BFS Trees combinatorics, dfs and similar, graphs, math, shortest paths, trees	2600	x1342
1495A	Diamond Miner geometry, greedy, math, sortings	1200	x17156
1493E	Enormous XOR bitmasks, constructive algorithms, greedy, math, strings, two pointers	2600	x948
1493D	GCD of an Array brute force, data structures, hashing, implementation, math, number theory, sortings, two pointers	2100	x5062
1492D	Genius's Gambit bitmasks, constructive algorithms, greedy, math	1900	x6136
1492B	Card Deck data structures, greedy, math	1100	x18521
1492A	Three swimmers math	800	x22719
1491G	Switch and Flip constructive algorithms, graphs, math	2800	x837
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x7238
1491B	Minimal Cost brute force, math	1200	x13847
1490G	Old Floppy Drive binary search, data structures, math	1900	x5696
1490F	Equalize the Array binary search, data structures, greedy, math, sortings	1500	x16322
1490C	Sum of Cubes binary search, brute force, brute force, math	1100	x33708
1490B	Balanced Remainders brute force, constructive algorithms, math	1000	x26324
1490A	Dense Array greedy, math	800	x31299
1488J	Flower Shop *special problem, data structures, fft, math	3100	x35
1488C	Two Policemen *special problem, binary search, brute force, math	1900	x425
1488A	From Zero To Y *special problem, math	900	x1433
1487G	String Counting combinatorics, dp, fft, math	2700	x602
1487D	Pythagorean Triples binary search, brute force, math, number theory	1500	x18136
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x14250
1487B	Cat Cycle math, number theory	1200	x21397
1485D	Multiples and Power Differences constructive algorithms, graphs, math, number theory	2200	x5196
1485C	Floor and Mod binary search, brute force, math, number theory	1700	x10054
1485B	Replace and Keep Sorted dp, implementation, math	1200	x17152
1485A	Add and Divide brute force, greedy, math, number theory	1000	x22878
1482B	Restore Modulo implementation, math	1500	x9225
1482A	Prison Break math	800	x20508
1479E	School Clubs dp, fft, math, number theory, probabilities	3500	x215
1478C	Nezzar and Symmetric Array implementation, math, sortings	1700	x9847
1478B	Nezzar and Lucky Number brute force, dp, greedy, math	1100	x18362
1477F	Nezzar and Chocolate Bars combinatorics, fft, math, probabilities	3500	x135
1477C	Nezzar and Nice Beatmap constructive algorithms, geometry, greedy, math, sortings	2200	x2346
1477A	Nezzar and Board constructive algorithms, math, number theory	1800	x5999
1476B	Inflation binary search, brute force, greedy, math	1300	x20127
1476A	K-divisible Sum binary search, constructive algorithms, greedy, math	1000	x38157
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6900
1475E	Advertising Agency combinatorics, math, sortings	1600	x13841
1475C	Ball in Berland combinatorics, graphs, math	1400	x21448
1475B	New Year's Number brute force, dp, math	900	x49574
1475A	Odd Divisor math, number theory	900	x62365
1474F	1 2 3 4 ... dp, math, matrices	3000	x250
1474D	Cleaning data structures, dp, greedy, math	2200	x4010
1474B	Different Divisors binary search, constructive algorithms, greedy, math, number theory	1000	x29326
1473G	Tiles combinatorics, dp, fft, math	2800	x402
1473F	Strange Set flows, math	2700	x970
1473C	No More Inversions constructive algorithms, math	1500	x12739
1473B	String LCM brute force, math, number theory, strings	1000	x31743
1473A	Replacing Elements greedy, implementation, math, sortings	800	x34014
1472B	Fair Division dp, greedy, math	800	x51234
1472A	Cards for Friends greedy, math	800	x42234
1471B	Strange List brute force, greedy, implementation, math	1100	x19400
1471A	Strange Partition greedy, math, number theory	900	x26688
1470B	Strange Definition bitmasks, graphs, hashing, math, number theory	1900	x6348
1469D	Ceil Divisions brute force, constructive algorithms, math, number theory	1700	x9499
1468L	Prime Divisors Selection binary search, greedy, math, number theory	2700	x328
1468I	Plane Tiling geometry, implementation, math	2500	x515
1468H	K and Medians constructive algorithms, greedy, math	2200	x1829
1467D	Sum of Paths combinatorics, dp, math	2200	x3714
1467A	Wizard of Orz constructive algorithms, greedy, math	900	x24408
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x308
1466G	Song of the Sirens combinatorics, divide and conquer, hashing, math, string suffix structures, strings	2600	x942
1466F	Euclid's nightmare bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings	2100	x2882
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x7358
1466A	Bovine Dilemma brute force, geometry, math	800	x22603