Problemset - Codeforces

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Codeforces Round 965 (Div. 2)
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Problems

#	Name
1937B	Binary Path dp, greedy, implementation	1300	x14275
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7799
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x18036
1933F	Turtle Mission: Robot and the Earthquake dfs and similar, dp, graphs, shortest paths	2100	x2376
1932F	Feed Cats data structures, dp, sortings	1900	x3825
1932A	Thorns and Coins dp, greedy, implementation	800	x28501
1930G	Prefix Max Set Counting data structures, dp, trees	3100	x325
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x1070
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2521
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3947
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1612
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4500
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1633
1927G	Paint Charges data structures, dp, greedy, math	2300	x1590
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x20149
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3341
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1618
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x11275
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x25331
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3449
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x142
1924D	Balanced Subsequences combinatorics, dp, math	2700	x930
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x13279
1923E	Count Paths data structures, dfs and similar, dp, dsu, graphs, trees	2000	x3542
1923B	Monsters Attack! dp, greedy, implementation	1100	x17166
1922F	Replace on Segment dp, graph matchings	2500	x1316
1921G	Mischievous Shooter brute force, data structures, divide and conquer, dp, implementation	2200	x1205
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3678
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2528
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x798
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x820
1919C	Grouping Increases data structures, dp, greedy	1400	x18053
1918D	Blocking Elements binary search, data structures, dp, implementation, two pointers	1900	x4566
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x938
1917D	Yet Another Inversions Problem combinatorics, data structures, dp, implementation, math, number theory	2300	x1730
1917B	Erase First or Second Letter brute force, combinatorics, data structures, dp, strings	1100	x21023
1916H2	Matrix Rank (Hard Version) combinatorics, dp, math, matrices, string suffix structures	2700	x520
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x601
1916G	Optimizations From Chelsu divide and conquer, dp, number theory, trees	3500	x143
1914G2	Light Bulbs (Hard Version) combinatorics, data structures, dfs and similar, dp, graphs, hashing	2300	x1291
1914G1	Light Bulbs (Easy Version) brute force, combinatorics, dfs and similar, dp, dsu, graphs, math, trees	2100	x1772
1914F	Programming Competition dfs and similar, dp, graph matchings, greedy, trees	1900	x3916
1914D	Three Activities brute force, dp, greedy, implementation, sortings	1200	x20204
1913D	Array Collapse data structures, divide and conquer, dp, trees	2100	x2964
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2277
1910I	Inverse Problem *special problem, combinatorics, dp	2700	x48
1910E	Maximum Sum Subarrays *special problem, dp	2100	x185
1909I	Short Permutation Problem combinatorics, dp, fft, math	1900	x116
1909F2	Small Permutation Problem (Hard Version) combinatorics, dp, math	2500	x885
1909F1	Small Permutation Problem (Easy Version) brute force, combinatorics, dp, math	2200	x1727
1906J	Count BFS Graph combinatorics, dp	2100	x714
1906H	Twin Friends combinatorics, dp	2200	x650
1906E	Merge Not Sort constructive algorithms, dp	1900	x1428
1905E	One-X combinatorics, dfs and similar, dp, math, trees	2400	x915
1904B	Collecting Game binary search, dp, greedy, sortings, two pointers	1100	x14314
1903D2	Maximum And Queries (hard version) bitmasks, divide and conquer, dp, greedy	2500	x749
1902D	Robot Queries binary search, data structures, dp, implementation	1900	x3926
1901E	Compressed Tree dfs and similar, dp, graphs, greedy, sortings, trees	2200	x1457
1901D	Yet Another Monster Fight binary search, dp, greedy, implementation, math	1700	x6609
1900E	Transitive Graph dfs and similar, dp, dsu, graphs, implementation	2100	x1966
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x3984
1900C	Anji's Binary Tree dfs and similar, dp, trees	1300	x11129
1900B	Laura and Operations dp, math	900	x16930
1899C	Yarik and Array dp, greedy, two pointers	1100	x19886
1896H2	Cyclic Hamming (Hard Version) brute force, dp, fft, math, number theory	3500	x98
1896H1	Cyclic Hamming (Easy Version) brute force, divide and conquer, dp, fft, math, number theory	3400	x87
1895G	Two Characters, Two Colors binary search, data structures, dp, flows, greedy	3100	x183
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x716
1895E	Infinite Card Game binary search, brute force, data structures, dfs and similar, dp, dsu, games, graphs, greedy, sortings, two pointers	2300	x1522
1895C	Torn Lucky Ticket brute force, dp, hashing, implementation, math	1400	x10694
1893E	Cacti Symphony combinatorics, dfs and similar, dp, graphs	3500	x188
1889F	Doremy's Average Tree data structures, dp, greedy, trees	3500	x76
1889C2	Doremy's Drying Plan (Hard Version) data structures, dp	2600	x946
1889C1	Doremy's Drying Plan (Easy Version) brute force, data structures, dp, greedy, sortings	2000	x3160
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1403
1884D	Counting Rhyme dp, math, number theory	2100	x3078
1884C	Medium Design brute force, data structures, dp, greedy, sortings	1700	x5876
1883C	Raspberries dp, math	1000	x25564
1882D	Tree XOR bitmasks, dfs and similar, dp, greedy, trees	1900	x5259
1881F	Minimum Maximum Distance dfs and similar, dp, graphs, shortest paths, trees	1700	x6557
1881E	Block Sequence dp	1500	x13133
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x7114
1879C	Make it Alternating combinatorics, dp, greedy	1300	x16189
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x261
1875D	Jellyfish and Mex dp	1600	x8269
1874G	Jellyfish and Inscryption dp	3500	x81
1874F	Jellyfish and OEIS dp	3500	x194
1874E	Jellyfish and Hack dp, math	3000	x299
1874D	Jellyfish and Miku divide and conquer, dp, math, probabilities	2800	x695
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1588
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1116
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12967
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2299
1870C	Colorful Table binary search, data structures, dp, implementation, math, two pointers	1300	x11213
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x81
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1119
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2350
1866M	Mighty Rock Tower brute force, combinatorics, dp, math, probabilities	2400	x739
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x437
1866J	Jackets and Packets dp	2800	x281