Problemset - Codeforces

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Codeforces Round 987 (Div. 2)
13:50:28
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Problems

#	Name
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x33024
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x38307
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x1093
1932F	Feed Cats data structures, dp, sortings	1900	x4168
1932E	Final Countdown implementation, math, number theory	1600	x8287
1932D	Card Game greedy, implementation	1400	x11541
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x15882
1932B	Chaya Calendar number theory	1100	x20910
1932A	Thorns and Coins dp, greedy, implementation	800	x29788
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2871
1931F	Chat Screenshots combinatorics, dfs and similar, graphs	1700	x8143
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x16125
1931D	Divisible Pairs combinatorics, math, number theory	1300	x19218
1931C	Make Equal Again brute force, greedy, math	1000	x29336
1931B	Make Equal greedy	800	x32344
1931A	Recovering a Small String brute force, strings	800	x36359
1930I	Counting Is Fun combinatorics	3500	x74
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x180
1930G	Prefix Max Set Counting data structures, dp, trees	3100	x341
1930F	Maximize the Difference bitmasks, brute force, dfs and similar	2700	x718
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x1149
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2649
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x4154
1930C	Lexicographically Largest binary search, constructive algorithms, data structures, greedy, sortings	1700	x7158
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x15400
1930A	Maximise The Score greedy, sortings	800	x18676
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1813
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1714
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4838
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x15053
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x25398
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x31695
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x244
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1738
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x4301
1928C	Physical Education Lesson brute force, math, number theory	1600	x8656
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x17677
1928A	Rectangle Cutting geometry, math	800	x22752
1927G	Paint Charges data structures, dp, greedy, math	2300	x1702
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x4442
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x14169
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x21829
1927C	Choose the Different Ones! brute force, greedy, math	1000	x28169
1927B	Following the String constructive algorithms, greedy, strings	900	x33452
1927A	Make it White greedy, strings	800	x43835
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3639
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1727
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x12061
1926D	Vlad and Division bitmasks, greedy	1300	x15681
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x26944
1926B	Vlad and Shapes geometry, implementation	800	x32658
1926A	Vlad and the Best of Five implementation	800	x48839
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3693
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x20253
1925A	We Got Everything Covered! constructive algorithms, greedy, strings	800	x28976
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x155
1924E	Paper Cutting Again combinatorics, probabilities	3100	x441
1924D	Balanced Subsequences combinatorics, dp, math	2700	x1015
1924C	Fractal Origami geometry, math, matrices	2400	x1178
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2602
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x14085
1923F	Shrink-Reverse binary search, brute force, greedy, hashing, implementation, string suffix structures, strings	2800	x378
1923E	Count Paths data structures, dfs and similar, dp, dsu, graphs, trees	2000	x3926
1923D	Slimes binary search, constructive algorithms, data structures, greedy, two pointers	1800	x6881
1923C	Find B constructive algorithms, greedy	1400	x15273
1923B	Monsters Attack! dp, greedy, implementation	1100	x17804
1923A	Moving Chips greedy, implementation	800	x24786
1922F	Replace on Segment dp, graph matchings	2500	x1423
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7799
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5752
1922C	Closest Cities greedy, implementation, math	1300	x18687
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x20799
1922A	Tricky Template constructive algorithms, implementation, strings	800	x27081
1921G	Mischievous Shooter brute force, data structures, divide and conquer, dp, implementation	2200	x1257
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3923
1921E	Eat the Chip brute force, games, greedy, math	1600	x9888
1921D	Very Different Array data structures, greedy, sortings, two pointers	1100	x21784
1921C	Sending Messages greedy, math	900	x29539
1921B	Arranging Cats greedy, implementation	800	x33936
1921A	Square greedy, math	800	x43676
1920F2	Smooth Sailing (Hard Version) binary search, data structures, dsu, geometry, graphs, trees	3000	x536
1920F1	Smooth Sailing (Easy Version) binary search, brute force, data structures, dfs and similar, dsu, graphs, shortest paths	2500	x1007
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2744
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5657
1920C	Partitioning the Array brute force, math, number theory	1600	x13801
1920B	Summation Game games, greedy, math, sortings	1100	x21071
1920A	Satisfying Constraints brute force, greedy, math	800	x27958
1919H	Tree Diameter interactive, trees	2000	x144
1919G	Tree LGM constructive algorithms, divide and conquer, games, trees	3500	x183
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x867
1919F1	Wine Factory (Easy Version) data structures, greedy	2300	x2206
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x859
1919D	01 Tree constructive algorithms, data structures, dsu, greedy, sortings, trees	2100	x3915
1919C	Grouping Increases data structures, dp, greedy	1400	x19317
1919B	Plus-Minus Split greedy	800	x29822
1919A	Wallet Exchange games, math	800	x33500
1918G	Permutation of Given constructive algorithms, math	2700	x473
1918F	Caterpillar on a Tree dfs and similar, graphs, greedy, implementation, sortings, trees	2500	x881
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1748
1918D	Blocking Elements binary search, data structures, dp, implementation, two pointers	1900	x4845