Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Before contest
Codeforces Round 941 (Div. 2)
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binary search

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Problems

#	Name
1920F1	Smooth Sailing (Easy Version) binary search, brute force, data structures, dfs and similar, dsu, graphs, shortest paths	2500	x867
1835B	Lottery binary search, brute force, greedy, math, two pointers	2500	x894
1539E	Game with Cards binary search, constructive algorithms, data structures, dp, greedy, implementation	2500	x922
1517E	Group Photo binary search, data structures, implementation, two pointers	2500	x945
1771F	Hossam and Range Minimum Query binary search, bitmasks, data structures, hashing, probabilities, strings, trees	2500	x953
1398F	Controversial Rounds binary search, data structures, dp, greedy, two pointers	2500	x1066
333E	Summer Earnings binary search, bitmasks, brute force, geometry, sortings	2500	x1066
1307E	Cow and Treats binary search, combinatorics, dp, greedy, implementation, math	2500	x1074
1334F	Strange Function binary search, data structures, dp, greedy	2500	x1079
1301E	Nanosoft binary search, data structures, dp, implementation	2500	x1194
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1256
992E	Nastya and King-Shamans binary search, data structures	2500	x1263
1438E	Yurii Can Do Everything binary search, bitmasks, brute force, constructive algorithms, divide and conquer, two pointers	2500	x1290
1470C	Strange Shuffle binary search, brute force, constructive algorithms, interactive	2500	x1303
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1335
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1338
1361C	Johnny and Megan's Necklace binary search, bitmasks, constructive algorithms, dfs and similar, dsu, graphs	2500	x1378
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1438
660F	Bear and Bowling 4 binary search, data structures, divide and conquer, geometry, ternary search	2500	x1503
1253F	Cheap Robot binary search, dsu, graphs, shortest paths, trees	2500	x1574
551E	GukiZ and GukiZiana binary search, data structures, implementation	2500	x1648
1527E	Partition Game binary search, data structures, divide and conquer, dp	2500	x2076
484E	Sign on Fence binary search, constructive algorithms, data structures	2500	x2161
468C	Hack it! binary search, constructive algorithms, math	2500	x2235
1910H	Sum of Digits of Sums *special problem, binary search, data structures	2400	x77
350D	Looking for Owls binary search, data structures, geometry, hashing, sortings	2400	x254
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x283
97C	Winning Strategy binary search, graphs, math, shortest paths	2400	x296
198C	Delivering Carcinogen binary search, geometry	2400	x368
198E	Gripping Story binary search, data structures, sortings	2400	x400
1710E	Two Arrays binary search, games, graph matchings	2400	x463
633E	Startup Funding binary search, constructive algorithms, data structures, probabilities, two pointers	2400	x567
160E	Buses and People binary search, data structures, sortings	2400	x576
845E	Fire in the City binary search, data structures	2400	x577
28D	Don't fear, DravDe is kind binary search, data structures, dp, hashing	2400	x582
847J	Students Initiation binary search, flows, graphs	2400	x612
796E	Exam Cheating binary search, dp	2400	x621
1866L	Lihmuf Balling binary search, brute force, math	2400	x648
853D	Michael and Charging Stations binary search, dp, greedy	2400	x652
1780G	Delicious Dessert binary search, dsu, hashing, math, number theory, string suffix structures	2400	x665
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x734
822E	Liar binary search, dp, hashing, string suffix structures	2400	x747
1809E	Two Tanks binary search, dp, implementation, math	2400	x789
865C	Gotta Go Fast binary search, dp	2400	x809
1098C	Construct a tree binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	2400	x865
1129C	Morse Code binary search, data structures, dp, hashing, sortings, string suffix structures, strings	2400	x896
1099F	Cookies binary search, data structures, dfs and similar, dp, games, trees	2400	x907
1016E	Rest In The Shades binary search, geometry	2400	x928
1221F	Choose a Square binary search, data structures, sortings	2400	x973
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x974
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x986
1605E	Array Equalizer binary search, greedy, implementation, math, number theory, sortings, two pointers	2400	x995
125E	MST Company binary search, graphs	2400	x1005
1004E	Sonya and Ice Cream binary search, data structures, dp, greedy, shortest paths, trees	2400	x1007
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1038
1578L	Labyrinth binary search, dsu, greedy	2400	x1049
808F	Card Game binary search, flows, graphs	2400	x1067
802N	April Fools' Problem (medium) binary search, flows, graphs	2400	x1088
1632E1	Distance Tree (easy version) binary search, data structures, dfs and similar, graphs, shortest paths, trees	2400	x1107
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x1123
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1229
1101F	Trucks and Cities binary search, dp	2400	x1252
626E	Simple Skewness binary search, math, ternary search	2400	x1291
1780E	Josuke and Complete Graph binary search, brute force, data structures, math, number theory	2400	x1297
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1319
1059E	Split the Tree binary search, data structures, dp, greedy, trees	2400	x1351
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1352
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1353
1367F2	Flying Sort (Hard Version) binary search, data structures, dp, greedy, sortings, two pointers	2400	x1440
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1441
1633E	Spanning Tree Queries binary search, data structures, dfs and similar, dsu, graphs, greedy, math, sortings, trees	2400	x1455
1743E	FTL binary search, dp	2400	x1463
1401F	Reverse and Swap binary search, bitmasks, data structures	2400	x1469
912E	Prime Gift binary search, dfs and similar, math, meet-in-the-middle, number theory, two pointers	2400	x1470
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x1504
1887C	Minimum Array binary search, brute force, constructive algorithms, data structures, greedy, hashing, two pointers	2400	x1559
1373F	Network Coverage binary search, constructive algorithms, data structures, greedy	2400	x1618
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1709
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x1718
1418E	Expected Damage binary search, combinatorics, probabilities	2400	x1722
1827B2	Range Sorting (Hard Version) binary search, data structures, dp, greedy	2400	x1754
1832D2	Red-Blue Operations (Hard Version) binary search, constructive algorithms, greedy, implementation, math	2400	x1783
1392F	Omkar and Landslide binary search, constructive algorithms, data structures, greedy, math	2400	x1939
1837F	Editorial for Two binary search, data structures, greedy, implementation	2400	x2056
1436E	Complicated Computations binary search, data structures, two pointers	2400	x2107
1428F	Fruit Sequences binary search, data structures, divide and conquer, dp, two pointers	2400	x2160
1251E2	Voting (Hard Version) binary search, data structures, greedy	2400	x2352
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x2945
1488F	Dogecoin special problem, special problem, binary search, data structures	2300	x167
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x301
518F	Pasha and Pipe binary search, brute force, combinatorics, dp, implementation	2300	x347
1575B	Building an Amusement Park binary search, geometry	2300	x450
248D	Sweets for Everyone! binary search, greedy, implementation	2300	x474
424D	Biathlon Track binary search, brute force, constructive algorithms, data structures, dp	2300	x554
677E	Vanya and Balloons binary search, brute force, dp, implementation	2300	x581
76F	Tourist binary search, data structures, dp	2300	x601
883C	Downloading B++ binary search, implementation	2300	x614
414D	Mashmokh and Water Tanks binary search, data structures, greedy, trees, two pointers	2300	x673
727F	Polycarp's problems binary search, dp, greedy	2300	x761
949D	Curfew binary search, brute force, greedy, sortings	2300	x811