Problemset - Codeforces

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Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
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Problems

#	Name
1946F	Nobody is needed 2-sat, data structures, dfs and similar, dp	2500	x991
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2585
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4775
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x11065
1946B	Maximum Sum dp, greedy, math	1100	x20580
1946A	Median of an Array greedy, implementation, sortings	800	x26162
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x679
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x750
1945F	Kirill and Mushrooms data structures, sortings	1900	x4271
1945E	Binary Search binary search, constructive algorithms, greedy	1700	x8278
1945D	Seraphim the Owl dp, greedy	1300	x14603
1945C	Left and Right Houses brute force	1200	x15065
1945B	Fireworks math, number theory	900	x22867
1945A	Setting up Camp greedy, math	800	x27854
1944B	Equal XOR bitmasks, constructive algorithms	1100	x16304
1944A	Destroying Bridges graphs, greedy, math	800	x23907
1943F	Minimum Hamming Distance dp	3500	x113
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x306
1943E1	MEX Game 2 (Easy Version) binary search, brute force, greedy	2900	x443
1943D2	Counting Is Fun (Hard Version) combinatorics, dp	2800	x812
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1518
1943C	Tree Compass constructive algorithms, dfs and similar, greedy, trees	2300	x2134
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3897
1943A	MEX Game 1 games, greedy	1300	x18134
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x96
1942G	Bessie and Cards combinatorics, dp, math	2800	x456
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x702
1942E	Farm Game combinatorics, games	2300	x1698
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2828
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x6212
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x11069
1942B	Bessie and MEX constructive algorithms, math	1100	x14091
1942A	Farmer John's Challenge constructive algorithms, math	800	x17362
1941G	Rudolf and Subway constructive algorithms, dfs and similar, graphs, shortest paths	2000	x3592
1941F	Rudolf and Imbalance binary search, greedy, sortings, two pointers	1800	x6112
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x9821
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x18511
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x33655
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x30096
1941A	Rudolf and the Ticket brute force, math	800	x42747
1940D	Almost Certainly *special problem, constructive algorithms, data structures, sortings		x144
1940C	Burenka and Pether *special problem, data structures, dfs and similar, divide and conquer, dsu, graphs, sortings, trees		x35
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x207
1940A	Parallel Universes *special problem, constructive algorithms, dfs and similar, dsu, graphs		x84
1939D	Big Persimmon *special problem, dp, games		x100
1939C	More Gifts *special problem, dfs and similar, two pointers		x317
1939B	Evidence Board *special problem, constructive algorithms, dfs and similar, graphs, trees		x247
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x24
1938M	Zig-zag	3500	x61
1938L	XOR Operations	2800	x296
1938K	Tree Quiz	2400	x637
1938J	There and Back Again	2100	x1305
1938I	Symmetric Boundary	2800	x77
1938H	Pho Restaurant	1600	x2179
1938G	Personality Test	2300	x1066
1938F	Forming Groups	2400	x766
1938E	Duplicates	2200	x1021
1938D	Bánh Bò	3300	x91
1938C	Bit Counting Sequence	1900	x1486
1938B	Attraction Score	3000	x201
1938A	Antiparticle Antiphysics	3500	x56
1937B	Binary Path dp, greedy, implementation	1300	x15179
1937A	Shuffle Party implementation, math	800	x23276
1936F	Grand Finale: Circles binary search, geometry	3300	x145
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x125
1936D	Bitwise Paradox binary search, bitmasks, data structures, greedy, two pointers	3100	x519
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1344
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2989
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x7536
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x454
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1395
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x8330
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x8272
1935B	Informatics in MAC constructive algorithms	1200	x18707
1935A	Entertainment in MAC constructive algorithms, strings	800	x28106
1934E	Weird LCM Operations brute force, constructive algorithms, number theory	3000	x241
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1409
1934D1	XOR Break --- Solo Version bitmasks, constructive algorithms, greedy	2100	x3565
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6873
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x19129
1934A	Too Min Too Max greedy, math	800	x25560
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x987
1933F	Turtle Mission: Robot and the Earthquake dfs and similar, dp, graphs, shortest paths	2100	x2516
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x11362
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x20478
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x22791
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x33095
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x38396
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x1098
1932F	Feed Cats data structures, dp, sortings	1900	x4211
1932E	Final Countdown implementation, math, number theory	1600	x8332
1932D	Card Game greedy, implementation	1400	x11599
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x15948
1932B	Chaya Calendar number theory	1100	x20985
1932A	Thorns and Coins dp, greedy, implementation	800	x29944
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2887
1931F	Chat Screenshots combinatorics, dfs and similar, graphs	1700	x8179
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x16216
1931D	Divisible Pairs combinatorics, math, number theory	1300	x19315
1931C	Make Equal Again brute force, greedy, math	1000	x29436