Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
25:14:55
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brute force

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Problems

#	Name
1671B	Consecutive Points Segment brute force, math, sortings	1000	x18178
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x4981
1670B	Dorms War brute force, implementation, strings	1100	x12448
1667A	Make it Increasing brute force, greedy, math	1300	x14424
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1387
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3092
1665E	MinimizOR bitmasks, brute force, data structures, divide and conquer, greedy, implementation, two pointers	2500	x1432
1662O	Circular Maze brute force, dfs and similar, graphs, implementation		x1278
1662I	Ice Cream Shop brute force, implementation, sortings		x1985
1662H	Boundary brute force, math		x2815
1662A	Organizing SWERC brute force, implementation		x4192
1661E	Narrow Components brute force, data structures, dp, dsu, math, trees	2500	x915
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17095
1660F1	Promising String (easy version) brute force, implementation, math, strings	1700	x7044
1660E	Matrix and Shifts brute force, constructive algorithms, greedy, implementation	1600	x7023
1660D	Maximum Product Strikes Back brute force, implementation, math, two pointers	1600	x8238
1659E	AND-MEX Walk bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2200	x1473
1659C	Line Empire binary search, brute force, dp, greedy, implementation, math	1500	x9818
1658F	Juju and Binary String brute force, constructive algorithms, greedy, math	2700	x728
1658D2	388535 (Hard Version) bitmasks, brute force, data structures, math	2300	x2451
1657D	For Gamers. By Gamers. binary search, brute force, greedy, math, sortings	2000	x4731
1657A	Integer Moves brute force, math	800	x23740
1654E	Arithmetic Operations brute force, data structures, graphs, math	2300	x2001
1654A	Maximum Cake Tastiness brute force, greedy, implementation, sortings	800	x18463
1651F	Tower Defense binary search, brute force, data structures	3000	x364
1651E	Sum of Matchings brute force, combinatorics, constructive algorithms, dfs and similar, graph matchings, greedy, math	2600	x495
1651C	Fault-tolerant Network brute force, data structures, implementation	1500	x10515
1650D	Twist the Permutation brute force, constructive algorithms, implementation, math	1300	x12746
1648B	Integral Array brute force, constructive algorithms, data structures, math	1800	x6230
1647B	Madoka and the Elegant Gift brute force, constructive algorithms, graphs, implementation	1200	x15123
1646E	Power Board brute force, dp, math, number theory	2200	x2310
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13350
1646B	Quality vs Quantity brute force, constructive algorithms, greedy, sortings, two pointers	800	x20912
1644E	Expand the Path brute force, combinatorics, data structures, implementation, math	1900	x3013
1644C	Increase Subarray Sums brute force, dp, greedy, implementation	1400	x13430
1644B	Anti-Fibonacci Permutation brute force, constructive algorithms, implementation	800	x20503
1641D	Two Arrays bitmasks, brute force, combinatorics, greedy, hashing, math, two pointers	2700	x1053
1641C	Anonymity Is Important binary search, brute force, data structures, dsu, greedy, sortings	2200	x2346
1641A	Great Sequence brute force, greedy, sortings	1200	x17584
1638F	Two Posters brute force, data structures, greedy, two pointers	3200	x196
1638E	Colorful Operations brute force, data structures, implementation	2400	x1797
1637E	Best Pair binary search, brute force, implementation	2100	x3199
1637B	MEX and Array brute force, dp, greedy, math	1100	x14654
1637A	Sorting Parts brute force, sortings	800	x22110
1634F	Fibonacci Additions brute force, data structures, hashing, implementation, math	2700	x1533
1633C	Kill the Monster brute force, math	1100	x19696
1633A	Div. 7 brute force	800	x32037
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12326
1629A	Download More RAM brute force, greedy, sortings	800	x28598
1627D	Not Adding brute force, dp, math, number theory	1900	x7888
1626D	Martial Arts Tournament binary search, brute force, greedy, math	2100	x3808
1625E1	Cats on the Upgrade (easy version) brute force, data structures, dfs and similar, divide and conquer, dp, graphs, trees	2500	x981
1625B	Elementary Particles brute force, greedy, sortings	1100	x15892
1624E	Masha-forgetful brute force, constructive algorithms, dp, hashing, implementation, strings	2000	x3976
1623B	Game on Ranges brute force, dfs and similar, implementation, sortings	1100	x13924
1623A	Robot Cleaner brute force, implementation, math	800	x19914
1622E	Math Test bitmasks, brute force, greedy	2200	x1848
1622C	Set or Decrease binary search, brute force, greedy, sortings	1600	x12478
1620D	Exact Change brute force, constructive algorithms, greedy	2000	x4059
1620C	BA-String brute force, dp, greedy, implementation, math	1800	x6394
1619H	Permutation and Queries brute force, data structures, divide and conquer, two pointers	2400	x1079
1619F	Let's Play the Hat? brute force, constructive algorithms, greedy, math	2000	x2032
1617B	GCD Problem brute force, constructive algorithms, math, number theory	900	x22569
1616F	Tricolor Triangles brute force, graphs, math, matrices	2900	x586
1616E	Lexicographically Small Enough brute force, data structures, greedy, strings	2200	x2396
1616C	Representative Edges brute force, geometry, implementation, math	1500	x12013
1615C	Menorah brute force, graphs, greedy, math	1600	x8088
1614A	Divan and a Store brute force, constructive algorithms, greedy	800	x23090
1612F	Armor and Weapons brute force, dp, greedy, shortest paths	2800	x574
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2399
1612A	Distance brute force, constructive algorithms	800	x17519
1610E	AmShZ and G.O.A.T. binary search, brute force, greedy, implementation, math	2300	x1633
1607F	Robot on the Board 2 brute force, dfs and similar, graphs, implementation	2300	x1894
1607C	Minimum Extraction brute force, sortings	1000	x24418
1606F	Tree Queries brute force, dp, trees	2800	x521
1606D	Red-Blue Matrix brute force, constructive algorithms, implementation, sortings	2400	x1403
1605C	Dominant Character brute force, greedy, implementation, strings	1400	x16451
1600F	Party Organization brute force, math, probabilities	2300	x436
1599J	Bob's Beautiful Array bitmasks, brute force, greedy	2600	x285
1599G	Shortest path brute force, geometry, math, shortest paths	2700	x358
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1331
1598E	Staircases brute force, combinatorics, data structures, dfs and similar, dp, implementation, math	2100	x2251
1598B	Groups brute force, implementation	1000	x15809
1598A	Computer Game brute force, dfs and similar, dp, implementation	800	x22872
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1449
1594C	Make Them Equal brute force, greedy, math, strings	1200	x18153
1593E	Gardener and Tree brute force, data structures, dfs and similar, greedy, implementation, trees	1600	x11784
1593D2	Half of Same brute force, math, number theory	1900	x4832
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1720
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14619
1580E	Railway Construction brute force, constructive algorithms, data structures, graphs, shortest paths	3400	x66
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x767
1580C	Train Maintenance brute force, data structures, implementation	2200	x1686
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x982
1580A	Portal brute force, data structures, dp, greedy, implementation	1700	x3575
1579F	Array Stabilization (AND version) brute force, graphs, math, number theory, shortest paths	1700	x4598
1578K	Kingdom of Islands brute force, graphs, implementation	2800	x347
1578J	Just Kingdom brute force, data structures, dfs and similar	3100	x221
1575J	Jeopardy of Dropped Balls binary search, brute force, dsu, implementation	1500	x3661
1575D	Divisible by Twenty-Five brute force, dfs and similar, dp	1800	x2427