Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
1994E	Wooden Game bitmasks, greedy, math, sortings, trees		x2705
1992B	Angry Monk greedy, math, sortings	800	x28343
1992A	Only Pluses brute force, constructive algorithms, greedy, math, sortings	800	x33264
1990A	Submission Bait brute force, games, greedy, sortings		x14515
1989D	Smithing Skill brute force, data structures, dp, greedy, math, sortings, two pointers	1900	x4830
1986E	Beautiful Array greedy, math, number theory, sortings	1700	x7332
1986C	Update Queries data structures, greedy, sortings	1100	x20583
1986B	Matrix Stabilization brute force, data structures, greedy, sortings	1000	x23901
1986A	X Axis brute force, geometry, math, sortings	800	x35752
1984G	Magic Trick II constructive algorithms, implementation, sortings	3200	x201
1983D	Swap Dilemma constructive algorithms, data structures, divide and conquer, greedy, math, sortings	1700	x6890
1982F	Sorting Problem Again binary search, data structures, sortings	2600	x786
1982A	Soccer greedy, implementation, math, sortings	800	x22728
1980F2	Field Division (hard version) math, sortings	2400	x850
1980F1	Field Division (easy version) data structures, math, sortings	1900	x3307
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x9170
1980B	Choosing Cubes sortings, sortings	800	x32085
1978A	Alice and Books constructive algorithms, greedy, sortings	800	x23217
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x5972
1976F	Remove Bridges data structures, dfs and similar, dp, greedy, sortings, trees	2800	x469
1976A	Verify Password implementation, sortings, strings	800	x26172
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x16203
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x17558
1974G	Money Buys Less Happiness Now data structures, greedy, sortings	2000	x3757
1974F	Cutting Game binary search, brute force, data structures, implementation, sortings, two pointers	1900	x3192
1974B	Symmetric Encoding implementation, sortings, strings	800	x28497
1973E	Cat, Fox and Swaps graphs, math, sortings	2500	x711
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x7532
1971G	XOUR data structures, dsu, sortings	1700	x8236
1971E	Find the Car binary search, math, sortings	1500	x12629
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x23639
1971A	My First Sorting Problem implementation, sortings	800	x40413
1970A1	Balanced Shuffle (Easy) implementation, sortings	1000	x3738
1969D	Shop Game data structures, greedy, math, sortings	1900	x4057
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x11284
1965A	Everything Nim games, greedy, math, sortings	1400	x12315
1956F	Nene and the Passing Game constructive algorithms, data structures, dsu, graphs, sortings	3000	x312
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x7969
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x26136
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5552
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x734
1951C	Ticket Hoarding greedy, math, sortings	1400	x10812
1949F	Dating greedy, sortings, trees	2200	x853
1949B	Charming Meals binary search, brute force, greedy, sortings	1500	x2605
1946A	Median of an Array greedy, implementation, sortings	800	x25094
1945F	Kirill and Mushrooms data structures, sortings	1900	x3905
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2635
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x5572
1940D	Almost Certainly *special problem, constructive algorithms, data structures, sortings		x126
1940C	Burenka and Pether *special problem, data structures, dfs and similar, divide and conquer, dsu, graphs, sortings, trees		x34
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x181
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1194
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7637
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x19093
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x36916
1932F	Feed Cats data structures, dp, sortings	1900	x3753
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x14530
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x6727
1930A	Maximise The Score greedy, sortings	800	x17922
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x30337
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x16355
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x4102
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2390
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x19807
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x20829
1920B	Summation Game games, greedy, math, sortings	1100	x20044
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3703
1918F	Caterpillar on a Tree dfs and similar, graphs, greedy, implementation, sortings, trees	2500	x823
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1638
1918B	Minimize Inversions constructive algorithms, data structures, greedy, implementation, sortings	900	x22955
1915G	Bicycles graphs, greedy, implementation, shortest paths, sortings	1800	x5873
1915F	Greetings data structures, divide and conquer, sortings	1500	x12626
1914E2	Game with Marbles (Hard Version) games, greedy, sortings	1400	x11764
1914E1	Game with Marbles (Easy Version) brute force, games, greedy, sortings	1400	x11658
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x19825
1912A	Accumulator Apex data structures, implementation, sortings	1900	x1965
1909C	Heavy Intervals constructive algorithms, data structures, dsu, greedy, math, sortings	1400	x10548
1907F	Shift and Reverse greedy, sortings	1800	x4621
1906F	Maximize The Value data structures, sortings	2100	x995
1904D2	Set To Max (Hard Version) constructive algorithms, data structures, divide and conquer, greedy, implementation, sortings	1800	x4103
1904C	Array Game binary search, brute force, data structures, sortings, two pointers	1400	x11731
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x14067
1903A	Halloumi Boxes brute force, greedy, sortings	800	x27647
1901E	Compressed Tree dfs and similar, dp, graphs, greedy, sortings, trees	2200	x1448
1899G	Unusual Entertainment data structures, dfs and similar, dsu, shortest paths, sortings, trees, two pointers	1900	x3045
1899E	Queue Sort greedy, implementation, sortings	1300	x14725
1898E	Sofia and Strings data structures, greedy, sortings, strings, two pointers	2200	x2160
1896G	Pepe Racing constructive algorithms, implementation, interactive, sortings	3200	x324
1896E	Permutation Sorting data structures, sortings	2100	x2134
1896C	Matching Arrays binary search, constructive algorithms, greedy, sortings	1400	x9151
1896A	Jagged Swaps sortings	800	x20984
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1512
1895B	Points and Minimum Distance greedy, math, sortings	800	x20087
1893B	Neutral Tonality constructive algorithms, greedy, sortings, two pointers	1700	x8484
1891E	Brukhovich and Exams brute force, greedy, implementation, math, sortings	2500	x798
1891C	Smilo and Monsters binary search, constructive algorithms, greedy, sortings, two pointers	1500	x12289
1891B	Deja Vu brute force, math, sortings	1100	x16880
1891A	Sorting with Twos constructive algorithms, sortings	800	x18861
1889C1	Doremy's Drying Plan (Easy Version) brute force, data structures, dp, greedy, sortings	2000	x3128
1889B	Doremy's Connecting Plan constructive algorithms, greedy, math, sortings	1700	x7039

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