Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
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brute force

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Problems

#	Name
1972A	Contest Proposal brute force, greedy, two pointers	800	x16644
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x5448
1970G2	Min-Fund Prison (Medium) brute force, dfs and similar, dp, graphs, trees	2200	x300
1970D1	Arithmancy (Easy) brute force, constructive algorithms, interactive, strings	2100	x364
1970A2	Balanced Unshuffle (Medium) brute force, constructive algorithms, trees	2400	x314
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x1324
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x11130
1968A	Maximize? brute force, math, number theory	800	x26193
1967F	Next and Prev brute force, data structures, implementation	3200	x27
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1230
1967B2	Reverse Card (Hard Version) brute force, math, number theory	2200	x2940
1967B1	Reverse Card (Easy Version) brute force, math, number theory	1400	x9526
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x993
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x3594
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x657
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1205
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3210
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x18973
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1015
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3465
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x7163
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x692
1952F	Grid brute force		x1642
1952C	They Have Fooled brute force, schedules		x2723
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3021
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7627
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x12018
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x20387
1949E	Damage per Second brute force, math	2900	x82
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x1861
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x81
1948G	MST with Matching bitmasks, brute force, dsu, graph matchings, trees	3100	x615
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2634
1948D	Tandem Repeats? brute force, strings, two pointers	1700	x8212
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x14477
1948B	Array Fix brute force, dp, greedy, implementation	1100	x20507
1948A	Special Characters brute force, constructive algorithms	800	x26317
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4036
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x493
1945C	Left and Right Houses brute force	1200	x12873
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x362
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1256
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x559
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x26485
1941A	Rudolf and the Ticket brute force, math	800	x38994
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1172
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7147
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x183
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16694
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x866
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20540
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13723
1931C	Make Equal Again brute force, greedy, math	1000	x26117
1931A	Recovering a Small String brute force, strings	800	x33602
1930F	Maximize the Difference bitmasks, brute force, dfs and similar	2700	x614
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3698
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13651
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1630
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1516
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13275
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1552
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3757
1928C	Physical Education Lesson brute force, math, number theory	1600	x7498
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18324
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25617
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1496
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18255
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x332
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5233
1921G	Mischievous Shooter brute force, data structures, divide and conquer, dp, implementation	2200	x1129
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3460
1921E	Eat the Chip brute force, games, greedy, math	1600	x8930
1920F1	Smooth Sailing (Easy Version) binary search, brute force, data structures, dfs and similar, dsu, graphs, shortest paths	2500	x880
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5099
1920C	Partitioning the Array brute force, math, number theory	1600	x11843
1920A	Satisfying Constraints brute force, greedy, math	800	x26510
1917C	Watering an Array brute force, greedy, implementation, math	1600	x9407
1917B	Erase First or Second Letter brute force, combinatorics, data structures, dp, strings	1100	x19454
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x584
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x7906
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x38668
1914G1	Light Bulbs (Easy Version) brute force, combinatorics, dfs and similar, dp, dsu, graphs, math, trees	2100	x1676
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x11166
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x18234
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13686
1909F1	Small Permutation Problem (Easy Version) brute force, combinatorics, dp, math	2200	x1638
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1250
1907G	Lights brute force, constructive algorithms, dfs and similar, graphs, greedy, implementation	2200	x1754
1907E	Good Triples brute force, combinatorics, number theory	1600	x8825
1906A	Easy As ABC brute force	1000	x3541
1905F	Field Should Not Be Empty brute force, data structures, divide and conquer	2600	x456
1904D1	Set To Max (Easy Version) brute force, constructive algorithms, greedy	1600	x5703
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x10672
1904A	Forked! brute force, implementation	900	x15933
1903D1	Maximum And Queries (easy version) binary search, bitmasks, brute force, greedy	1700	x5099
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11406
1903A	Halloumi Boxes brute force, greedy, sortings	800	x24308
1902C	Insert and Equalize brute force, constructive algorithms, greedy, math, number theory	1300	x12279
1902B	Getting Points binary search, brute force, greedy	1100	x13346
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x3721

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