Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
2 days
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Before contest
Codeforces Round 941 (Div. 2)
2 days
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Problems

#	Name
483A	Counterexample brute force, implementation, math, number theory	1100	x22121
1731A	Joey Takes Money greedy, math	800	x22106
294A	Shaass and Oskols implementation, math	800	x22053
508B	Anton and currency you all know greedy, math, strings	1300	x22039
258A	Little Elephant and Bits greedy, math	1100	x21994
1857B	Maximum Rounding greedy, implementation, math	1100	x21979
1542B	Plus and Multiply constructive algorithms, math, number theory	1500	x21979
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x21976
610A	Pasha and Stick combinatorics, math	1000	x21957
1768B	Quick Sort greedy, math	900	x21956
1511B	GCD Length constructive algorithms, math, number theory	1100	x21915
1774A	Add Plus Minus Sign constructive algorithms, math	800	x21914
296A	Yaroslav and Permutations greedy, math	1100	x21890
1285C	Fadi and LCM brute force, math, number theory	1400	x21883
1388B	Captain Flint and a Long Voyage greedy, math	1000	x21876
1858C	Yet Another Permutation Problem constructive algorithms, greedy, math, number theory	1000	x21843
1872C	Non-coprime Split math, number theory	1100	x21831
1249A	Yet Another Dividing into Teams math	800	x21806
1452A	Robot Program math	800	x21769
1679A	AvtoBus brute force, greedy, math, number theory	900	x21718
1905A	Constructive Problems constructive algorithms, math	800	x21687
1720A	Burenka Plays with Fractions math, number theory	900	x21683
1B	Spreadsheet implementation, math	1600	x21642
1742E	Scuza binary search, greedy, math	1200	x21635
1064A	Make a triangle! brute force, geometry, math	800	x21616
1759B	Lost Permutation math	800	x21559
1592A	Gamer Hemose binary search, greedy, math, sortings	800	x21552
1708A	Difference Operations greedy, math	800	x21460
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x21402
1739B	Array Recovery constructive algorithms, greedy, math	1100	x21348
1618C	Paint the Array math	1100	x21336
1223A	CME math	800	x21297
1207A	There Are Two Types Of Burgers brute force, greedy, implementation, math	800	x21283
1061A	Coins greedy, implementation, math	800	x21283
1418A	Buying Torches math	1000	x21275
1455B	Jumps constructive algorithms, math	1200	x21206
1283B	Candies Division math	900	x21203
1937A	Shuffle Party implementation, math	800	x21190
1638A	Reverse constructive algorithms, greedy, math	800	x21187
1716B	Permutation Chain constructive algorithms, math	800	x21178
1692F	3SUM brute force, math	1300	x21167
1201C	Maximum Median binary search, greedy, math, sortings	1400	x21159
1777A	Everybody Likes Good Arrays! greedy, math	800	x21049
1838A	Blackboard List constructive algorithms, math	800	x21011
1499A	Domino on Windowsill combinatorics, constructive algorithms, math	800	x21002
1680A	Minimums and Maximums brute force, math	800	x20991
1834A	Unit Array greedy, math	800	x20978
1928A	Rectangle Cutting geometry, math	800	x20958
1406A	Subset Mex greedy, implementation, math	900	x20904
1269A	Equation brute force, math	800	x20822
1845B	Come Together geometry, implementation, math	900	x20812
1579E1	Permutation Minimization by Deque constructive algorithms, greedy, math	1000	x20810
1293B	JOE is on TV! combinatorics, greedy, math	1000	x20764
1872D	Plus Minus Permutation math	1200	x20738
1530A	Binary Decimal greedy, math	800	x20736
1485A	Add and Divide brute force, greedy, math, number theory	1000	x20729
1720B	Interesting Sum brute force, data structures, greedy, math, sortings	800	x20724
1401B	Ternary Sequence constructive algorithms, greedy, math	1100	x20714
1521B	Nastia and a Good Array constructive algorithms, math, number theory	1300	x20704
1300A	Non-zero implementation, math	800	x20658
1944A	Destroying Bridges graphs, greedy, math	800	x20654
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x20635
1422A	Fence geometry, math	800	x20613
1684B	Z mod X = C constructive algorithms, math	800	x20580
913A	Modular Exponentiation implementation, math	900	x20532
746A	Compote implementation, math	800	x20523
1350B	Orac and Models dp, math, number theory	1400	x20504
1622B	Berland Music data structures, greedy, math, sortings	1000	x20502
1914C	Quests greedy, math	1100	x20497
1828B	Permutation Swap math, number theory	900	x20490
1615A	Closing The Gap greedy, math	800	x20474
1430A	Number of Apartments brute force, constructive algorithms, math	900	x20443
682A	Alyona and Numbers constructive algorithms, math, number theory	1100	x20398
1638B	Odd Swap Sort data structures, math, sortings	1100	x20363
630C	Lucky Numbers combinatorics, math	1100	x20343
1529B	Sifid and Strange Subsequences greedy, math, sortings	1100	x20316
832A	Sasha and Sticks games, math	800	x20315
1605A	A.M. Deviation math, number theory	800	x20311
1393A	Rainbow Dash, Fluttershy and Chess Coloring greedy, math	800	x20200
1436B	Prime Square constructive algorithms, math	900	x20196
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20183
1744D	Divisibility by 2^n greedy, math, sortings	1200	x20153
1371C	A Cookie for You greedy, implementation, math	1300	x20147
1392A	Omkar and Password greedy, math	800	x20137
1482A	Prison Break math	800	x20127
1658A	Marin and Photoshoot constructive algorithms, implementation, math	800	x20122
514B	Han Solo and Lazer Gun brute force, data structures, geometry, implementation, math	1400	x20120
1792B	Stand-up Comedian greedy, math	1200	x20118
1221C	Perfect Team binary search, math	1200	x20089
1249B1	Books Exchange (easy version) dsu, math	1000	x20074
1407A	Ahahahahahahahaha constructive algorithms, math	1100	x20062
1715B	Beautiful Array constructive algorithms, greedy, math	1000	x20012
1257A	Two Rival Students greedy, math	800	x20012
1272A	Three Friends brute force, greedy, math, sortings	900	x20005
1515A	Phoenix and Gold constructive algorithms, greedy, math	800	x19994
1598C	Delete Two Elements data structures, dp, implementation, math, two pointers	1200	x19989
513A	Game constructive algorithms, math	800	x19913
1475C	Ball in Berland combinatorics, graphs, math	1400	x19898
166E	Tetrahedron dp, math, matrices	1500	x19877
1623A	Robot Cleaner brute force, implementation, math	800	x19875