Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
08:50:24
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brute force

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Problems

#	Name
1555A	PizzaForces brute force, math	900	x27993
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12737
1553G	Common Divisor Graph brute force, constructive algorithms, dsu, graphs, hashing, math, number theory	2700	x1020
1553E	Permutation Shift brute force, combinatorics, constructive algorithms, dfs and similar, dsu, graphs, math	2100	x3317
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17797
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x14117
1552G	A Serious Referee bitmasks, brute force, dfs and similar, sortings	3000	x527
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6985
1551F	Equidistant Vertices brute force, combinatorics, dfs and similar, dp, trees	2200	x1831
1551E	Fixed Points binary search, brute force, dp	2000	x3896
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1526
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x10150
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x241
1548A	Web of Lies brute force, graphs, greedy	1400	x16385
1547F	Array Stabilization (GCD version) binary search, brute force, data structures, divide and conquer, number theory, two pointers	1900	x5797
1546A	AquaMoon and Two Arrays brute force, greedy	800	x18189
1545F	AquaMoon and Potatoes brute force, data structures, dp	3500	x108
1545C	AquaMoon and Permutations 2-sat, brute force, combinatorics, constructive algorithms, graph matchings, graphs	2800	x604
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x2010
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5279
1541B	Pleasant Pairs brute force, implementation, math, number theory	1200	x28283
1540D	Inverse Inversions binary search, brute force, data structures	3200	x277
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2587
1538A	Stone Game brute force, dp, greedy	800	x36697
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12876
1536B	Prinzessin der Verurteilung brute force, constructive algorithms, strings	1200	x18677
1536A	Omkar and Bad Story brute force, constructive algorithms	800	x20179
1535F	String Distance binary search, brute force, data structures, hashing, implementation, strings	3000	x451
1535B	Array Reodering brute force, greedy, math, number theory, sortings	900	x30434
1535A	Fair Playoff brute force, implementation	800	x49106
1534A	Colour the Flag brute force, implementation	800	x12723
1531E2	Сортировка слиянием special problem, special problem, brute force		x333
1530C	Pursuit binary search, brute force, greedy, sortings	1200	x14604
1526D	Kill Anton brute force, constructive algorithms, data structures, math, strings	2200	x2468
1526C1	Potions (Easy Version) brute force, data structures, dp, greedy	1500	x22304
1525F	Goblins And Gnomes brute force, dp, flows, graph matchings	2800	x328
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2168
1523C	Compression and Expansion brute force, data structures, greedy, implementation, trees	1600	x8731
1520G	To Go Or Not To Go? brute force, dfs and similar, graphs, greedy, implementation, shortest paths	2200	x3685
1520B	Ordinary Numbers brute force, math, number theory	800	x44233
1520A	Do Not Be Distracted! brute force, implementation	800	x51473
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x413
1519D	Maximum Sum of Products brute force, dp, implementation, math, two pointers	1600	x15165
1519C	Berland Regional brute force, data structures, greedy, number theory, sortings	1400	x16841
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x19275
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x232
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x24823
1513F	Swapping Problem brute force, constructive algorithms, data structures, sortings	2500	x1260
1512G	Short Task brute force, dp, math, number theory	1700	x8103
1512F	Education brute force, dp, greedy, implementation	1900	x6194
1512E	Permutation by Sum brute force, greedy, math	1600	x10427
1512A	Spy Detected! brute force, implementation	800	x63544
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x771
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x431
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11453
1511C	Yet Another Card Deck brute force, data structures, implementation, trees	1100	x23593
1510K	King's Task brute force, graphs, implementation	1200	x5439
1508F	Optimal Encoding brute force, data structures	3500	x125
1508E	Tree Calendar brute force, constructive algorithms, data structures, dfs and similar, sortings, trees	3100	x346
1508C	Complete the MST bitmasks, brute force, data structures, dfs and similar, dsu, graphs, greedy, trees	2500	x1485
1506G	Maximize the Remaining String brute force, data structures, dp, greedy, strings	2000	x4292
1506C	Double-ended Strings brute force, implementation, strings	1000	x24894
1500C	Matrix Sorting bitmasks, brute force, constructive algorithms, greedy, two pointers	2600	x801
1500B	Two chandeliers binary search, brute force, chinese remainder theorem, math, number theory	2200	x2038
1500A	Going Home brute force, hashing, implementation, math	1800	x8801
1499C	Minimum Grid Path brute force, data structures, greedy, math	1500	x12613
1499B	Binary Removals brute force, dp, greedy, implementation	1000	x20720
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1917
1498C	Planar Reflections brute force, data structures, dp	1600	x9656
1498A	GCD Sum brute force, math	800	x23143
1497A	Meximization brute force, data structures, greedy, sortings	800	x24268
1496A	Split it! brute force, constructive algorithms, greedy, strings	900	x20851
1495E	Qingshan and Daniel brute force, data structures, greedy, implementation	3200	x414
1494F	Delete The Edges brute force, constructive algorithms, dfs and similar, graphs, implementation	2900	x367
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14295
1494A	ABC String bitmasks, brute force, implementation	900	x20834
1493D	GCD of an Array brute force, data structures, hashing, implementation, math, number theory, sortings, two pointers	2100	x4976
1493C	K-beautiful Strings binary search, brute force, constructive algorithms, greedy, strings	2000	x4588
1493B	Planet Lapituletti brute force, implementation	1300	x11830
1492E	Almost Fault-Tolerant Database brute force, constructive algorithms, dfs and similar, greedy, implementation	2500	x1177
1491I	Ruler Of The Zoo brute force, data structures	3500	x82
1491E	Fib-tree brute force, dfs and similar, divide and conquer, number theory, trees	2400	x2147
1491C	Pekora and Trampoline brute force, data structures, dp, greedy, implementation	1700	x7888
1491B	Minimal Cost brute force, math	1200	x13774
1491A	K-th Largest Value brute force, greedy, implementation	800	x18204
1490C	Sum of Cubes binary search, brute force, brute force, math	1100	x32928
1490B	Balanced Remainders brute force, constructive algorithms, math	1000	x26117
1488C	Two Policemen *special problem, binary search, brute force, math	1900	x405
1487E	Cheap Dinner brute force, data structures, graphs, greedy, implementation, sortings, two pointers	2000	x4531
1487D	Pythagorean Triples binary search, brute force, math, number theory	1500	x17811
1487C	Minimum Ties brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation, math	1500	x14108
1486E	Paired Payment binary search, brute force, constructive algorithms, dp, flows, graphs, shortest paths	2200	x2892
1485C	Floor and Mod binary search, brute force, math, number theory	1700	x9905
1485A	Add and Divide brute force, greedy, math, number theory	1000	x22304
1482C	Basic Diplomacy brute force, constructive algorithms, greedy, implementation	1600	x9367
1481D	AB Graph brute force, constructive algorithms, graphs, greedy, implementation	2000	x4525
1481C	Fence Painting brute force, constructive algorithms, greedy	1600	x11599
1481B	New Colony brute force, greedy, implementation	1100	x19268
1479D	Odd Mineral Resource binary search, bitmasks, brute force, data structures, probabilities, trees	2900	x1013
1478B	Nezzar and Lucky Number brute force, dp, greedy, math	1100	x18260