Problemset - Codeforces

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Codeforces Round #605 (Div. 3)
6 days

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Difficulty: —

math

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Problems

#	Name
1265B	Beautiful Numbers data structures, implementation, math, two pointers	1300	x4039
1267K	Key Storage combinatorics, math		x643
1267J	Just Arrange the Icons greedy, implementation, math		x823
1267G	Game Relics math, probabilities		x57
1263C	Everyone is a Winner! binary search, math, meet-in-the-middle, number theory	1400	x5062
1263A	Sweet Problem math	1200	x7087
1260C	Infinite Fence greedy, math, number theory	1700	x3465
1260B	Obtain Two Zeroes binary search, math	1200	x6017
1260A	Heating math	1000	x6819
1261F	Xor-Set bitmasks, divide and conquer, math	3100	x81
1227F2	Wrong Answer on test 233 (Hard Version) combinatorics, math	2400	x620
1227A	Math Problem math	1100	x5199
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x636
1254B2	Send Boxes to Alice (Hard Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	2100	x1381
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms, greedy, math, number theory, ternary search, two pointers	2000	x2068
1255A	Changing Volume math	800	x8658
1253C	Sweets Eating dp, greedy, math, sortings	1500	x5107
1257G	Divisor Set divide and conquer, fft, greedy, math, number theory	2700	x239
1257B	Magic Stick math	1000	x9465
1257A	Two Rival Students greedy, math	700	x10825
1242D	Number Discovery math	3400	x65
1242A	Tile Painting constructive algorithms, math, number theory	1500	x6388
1256A	Payment Without Change math	1000	x11659
1245A	Good ol' Numbers Coloring math, number theory	1000	x8487
1250L	Divide The Students binary search, greedy, math	1700	x1738
1250H	Happy Birthday math	1500	x1959
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1900	x1391
1225D	Power Products hashing, math, number theory	1900	x3062
1225C	p-binary bitmasks, brute force, math	1600	x4566
1225A	Forgetting Things math	900	x8768
1252K	Addition Robot data structures, math, matrices	2200	x1021
1249C2	Good Numbers (hard version) binary search, greedy, math, meet-in-the-middle	1500	x5531
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x7178
1249B1	Books Exchange (easy version) dsu, math	1000	x9656
1249A	Yet Another Dividing into Teams math	900	x11983
1248A	Integer Points geometry, math	900	x7554
1239A	Ivan the Fool and the Probability Theory combinatorics, dp, math	1700	x3937
1248B	Grow The Tree greedy, math, sortings	900	x7810
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	2900	x38
1236B	Alice and the List of Presents combinatorics, math	1400	x5876
1236A	Stones brute force, greedy, math	800	x9528
1237E	Balanced Binary Search Trees dp, math	2400	x704
1237A	Balanced Rating Changes implementation, math	1100	x8172
1244G	Running in Pairs constructive algorithms, greedy, math	2500	x775
1244C	The Football Season brute force, math, number theory	1900	x4018
1244A	Pens and Pencils math	700	x10913
1238C	Standard Free2play dp, greedy, math	1600	x4260
1238A	Prime Subtraction math, number theory	900	x11108
1223G	Wooden Raft binary search, math, number theory	3100	x99
1223A	CME math	600	x10946
1234E	Special Permutations math	2000	x1420
1234A	Equalize Prices Again math	900	x13768
1228E	Another Filling the Grid combinatorics, dp, math	2300	x1195
1228C	Primes and Multiplication math, number theory	1600	x5043
1228B	Filling the Grid implementation, math	1300	x7644
1210E	Wojtek and Card Tricks math	2700	x231
1210C	Kamil and Making a Stream math, number theory, trees	2100	x1914
1216E2	Numerical Sequence (hard version) binary search, math	2300	x731
1216E1	Numerical Sequence (easy version) binary search, brute force, math	1900	x1876
1216D	Swords math	1300	x5815
1216C	White Sheet geometry, math	1500	x3466
1221C	Perfect Team binary search, math	1200	x8388
1221A	2048 Game brute force, greedy, math	1000	x9322
1220D	Alex and Julian bitmasks, math, number theory	1900	x2244
1220B	Multiplication Table math, number theory	1300	x6619
1215D	Ticket Game games, greedy, math	1700	x3246
1215A	Yellow Cards greedy, implementation, math	1000	x7150
1209H	Moving Walkways data structures, greedy, math	3300	x49
1209B	Koala and Lights implementation, math, number theory	1300	x5551
1209A	Paint the Numbers greedy, implementation, math	900	x7756
1211G	King's Path *special problem, math, trees	2500	x34
1211D	Teams *special problem, binary search, greedy, math	2200	x126
1217E	Sum Queries? data structures, greedy, implementation, math	2300	x948
1217B	Zmei Gorynich greedy, math	1600	x6123
1217A	Creating a Character binary search, math	1300	x8309
1214E	Petya and Construction Set constructive algorithms, graphs, math, sortings, trees	2000	x1565
1214B	Badges brute force, math	1100	x6417
1214A	Optimal Currency Exchange brute force, math	1300	x5609
1213D2	Equalizing by Division (hard version) brute force, math, sortings	1600	x5407
1213C	Book Reading math	1200	x9625
1213A	Chips Moving math	900	x13108
1208G	Polygons greedy, math, number theory	2700	x366
1208A	XORinacci math	900	x10125
1207E	XOR Guessing bitmasks, interactive, math	1800	x3019
1207A	There Are Two Types Of Burgers brute force, greedy, implementation, math	700	x12577
1204E	Natasha, Sasha and the Prefix Sums combinatorics, dp, math, number theory	2400	x773
1204D2	Kirk and a Binary String (hard version) data structures, greedy, math, strings	2100	x1919
1204B	Mislove Has Lost an Array greedy, math	1000	x10696
1204A	BowWow and the Timetable math	1100	x10387
1206A	Choose Two Numbers math, sortings	800	x12255
1205F	Beauty of a Permutation constructive algorithms, math	3400	x33
1205A	Almost Equal constructive algorithms, greedy, math	1300	x8801
1203C	Common Divisors implementation, math	1300	x8621
1203B	Equal Rectangles greedy, math	1200	x8492
1200F	Graph Traveler brute force, data structures, dfs and similar, dp, graphs, implementation, math, number theory	2500	x543
1200C	Round Corridor math, number theory	1500	x6118
1202F	You Are Given Some Letters... binary search, implementation, math	2800	x166
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x2654
1202C	You Are Given a WASD-string... brute force, data structures, dp, greedy, implementation, math, strings	2100	x1331
1201C	Maximum Median binary search, greedy, math, sortings	1400	x6389

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