Problemset - Codeforces

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Codeforces Round (Div. 2)
5 days

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Difficulty: —

brute force

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Problems

#	Name
2231F	Quadratic Jumps brute force, constructive algorithms, greedy, math, number theory		x427
2229F	Load Unbalancing binary search, bitmasks, brute force, dp, greedy		x644
2229A	Slimes on a Line brute force, greedy, math		x12874
2228C1	Cirno and Number (Easy Version) binary search, brute force, dp, greedy, implementation		x6504
2227D	Palindromex binary search, brute force, constructive algorithms, data structures, greedy, implementation, two pointers		x10846
2225G	Simple Problem brute force, graphs, greedy, number theory		x226
2225F	String Cutting binary search, brute force, brute force, greedy, hashing, string suffix structures, string suffix structures, strings, strings		x656
2225D	Exceptional Segments bitmasks, brute force, math		x7141
2225B	Alternating String brute force, greedy		x15201
2222H	Counting Sort? brute force, combinatorics, dp		x124
2222G	Statistics on Tree binary search, brute force, dfs and similar, dfs and similar, divide and conquer, graphs, trees, trees		x187
2222A	A Wonderful Contest brute force, dp, math		x10737
2219A	Grid L brute force, constructive algorithms, math, number theory		x9480
2218E	The 67th XOR Problem binary search, bitmasks, brute force	1200	x15217
2218A	The 67th Integer Problem brute force, games, implementation, math	800	x37301
2215D	EXPloration, EXPloitation, and Gain Some EXPerience! bitmasks, brute force, dp, greedy, implementation	2800	x126
2215C	Oriented Journey bitmasks, brute force, communication, constructive algorithms, graphs, interactive, trees	2200	x693
2215B	RReeppeettiittiioonn binary search, brute force, implementation, math, number theory	2000	x1135
2214J	Special Problem *special problem, brute force, games, interactive		x3588
2211E	Minimum Path Cover brute force, dp, greedy, interactive, interactive, math, number theory, trees	2500	x892
2211C1	Equal Multisets (Easy Version) binary search, brute force, greedy, two pointers	1300	x9583
2209E	A Trivial String Problem brute force, dp, hashing, string suffix structures, strings	2200	x1861
2208B	Cyclists brute force, games, greedy, implementation, math, sortings	1100	x14132
2205G	Simons and Diophantus Equation bitmasks, brute force, data structures, math, number theory	3000	x208
2205A	Simons and Making It Beautiful brute force, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms	800	x17700
2204F	Sum of Fractions binary search, brute force, combinatorics, data structures, greedy, math, number theory, two pointers	2200	x1268
2204E	Sum of Digits (and Again) brute force, constructive algorithms, math	1800	x4917
2204A	Passing the Ball brute force, implementation	800	x22239
2203D	Divisibility Game brute force, games, games, games, greedy, number theory, number theory	1700	x5618
2200F	Mooclear Reactor 2 brute force, data structures, greedy, implementation, sortings	1900	x2993
2200C	Specialty String brute force, greedy, strings	900	x22473
2200B	Deletion Sort bitmasks, brute force, greedy, sortings	800	x26190
2197A	Friendly Numbers binary search, brute force, expression parsing, math, schedules	800	x23139
2196F	Indivisible brute force, constructive algorithms, graphs	3300	x107
2196E1	Fuzzy Concatenation (Easy Version) binary search, bitmasks, brute force, data structures, greedy, string suffix structures	2900	x289
2196B	Another Problem about Beautiful Pairs brute force, math, two pointers	1600	x8791
2195H	Codeforces Heuristic Contest 001 brute force, constructive algorithms, geometry, implementation	2400	x485
2194C	Secret message bitmasks, brute force, dp, math, number theory	1300	x11117
2193A	DBMB and the Array brute force, math	800	x43039
2192A	String Rotation Game brute force, strings	800	x18185
2187E	Doors and Keys brute force, data structures, dp	3500	x339
2185H	BattleCows 2 binary search, brute force, data structures, dp, greedy	2500	x696
2183F	Jumping Man brute force, combinatorics, dfs and similar, dp, trees	2500	x1136
2182F2	Christmas Reindeer (hard version) bitmasks, brute force, combinatorics, data structures, greedy, math	2500	x1100
2182F1	Christmas Reindeer (easy version) bitmasks, brute force, combinatorics, dp, math	2300	x1279
2182C	Production of Snowmen brute force, combinatorics, dp	1200	x15704
2182B	New Year Cake brute force	800	x23644
2181J	Jinx or Jackpot brute force, dp, math, probabilities	2300	x720
2181H	Honey Cake brute force, math, number theory	1200	x6748
2181E	Elevator Against Humanity brute force, constructive algorithms, greedy, sortings	2900	x148
2180A	Carnival Wheel brute force, number theory	800	x25987
2179G	Blackslex and Penguin Migration brute force, interactive, math	2200	x1223
2173F	Isla's Memory Thresholds binary search, brute force, data structures, divide and conquer, math	2600	x576
2173D	Taiga's Carry Chains bitmasks, brute force, dp, greedy, math	1900	x3687
2173C	Kanade's Perfect Multiples brute force, constructive algorithms, greedy, number theory	1400	x12574
2171A	Shizuku Hoshikawa and Farm Legs brute force, math	800	x37474
2170A	Maximum Neighborhood bitmasks, brute force, greedy, implementation, math	800	x20119
2167D	Yet Another Array Problem brute force, implementation, math, number theory	1000	x30490
2166A	Same Difference brute force, greedy, strings	800	x23056
2164C	Dungeon binary search, brute force, data structures, greedy, sortings	1400	x11045
2164B	Even Modulo Pair brute force, math, number theory	1000	x18650
2164A	Sequence Game brute force, sortings	800	x21197
2163D1	Diadrash (Easy Version) binary search, brute force, divide and conquer, implementation, interactive	2100	x2752
2163C	Monopati brute force, combinatorics, dp, math, two pointers	1500	x9137
2163A	Souvlaki VS. Kalamaki brute force, greedy, math, sortings	800	x19698
2162B	Beautiful String brute force, constructive algorithms	1000	x28104
2162A	Beautiful Average brute force, greedy	800	x41861
2161B	Make Connected brute force, implementation	1700	x5414
2159D1	Inverse Minimum Partition (Easy Version) binary search, brute force, dp, geometry, greedy, math, two pointers	2500	x1101
2159B	Rectangles brute force, data structures, dp, dsu, greedy, implementation, two pointers	2100	x2548
2158D	Palindrome Flipping brute force, constructive algorithms, graphs, implementation, shortest paths, strings	2000	x3321
2157H	Keygen 3 brute force, combinatorics, constructive algorithms, dfs and similar, math	3200	x128
2157G	Isaac's Queries bitmasks, brute force, constructive algorithms, dfs and similar, divide and conquer, dp, greedy, interactive, math, probabilities	2800	x456
2157F	Git Gud brute force, constructive algorithms, divide and conquer, math, ternary search	2400	x1366
2157E	Adjusting Drones binary search, brute force, data structures, dp, dsu, greedy, implementation, sortings	1900	x3751
2156F1	Strange Operation (Easy Version) brute force, data structures, greedy, implementation, sortings	2200	x1628
2156E	Best Time to Buy and Sell Stock binary search, brute force, data structures, dp, games, graphs, greedy	2500	x966
2156B	Strange Machine binary search, brute force, greedy, implementation	1000	x20930
2156A	Pizza Time brute force, constructive algorithms, greedy	800	x27008
2155D	Batteries brute force, constructive algorithms, graph matchings, graphs, interactive, math	1800	x5944
2155C	The Ancient Wizards' Capes brute force, greedy, implementation	1500	x10380
2154F1	Bombing (Easy Version) brute force, combinatorics, constructive algorithms, implementation, math	2700	x569
2153F	Odd Queries on Odd Array bitmasks, brute force, data structures, implementation, trees	2900	x325
2153E	Zero Trailing Factorial brute force, math, number theory	2400	x1000
2149G	Buratsuta 3 binary search, brute force, data structures, divide and conquer, probabilities	2100	x2695
2148A	Sublime Sequence brute force, hashing, math	800	x47799
2147E	Maximum OR Popcount binary search, bitmasks, brute force, data structures, greedy	2300	x2152
2146F	Bubble Sort brute force, combinatorics, dp	2900	x307
2146E	Yet Another MEX Problem brute force, constructive algorithms, data structures, divide and conquer, greedy, hashing	2300	x2083
2146A	Equal Occurrences brute force, greedy, implementation	800	x21991
2144F	Bracket Groups brute force, constructive algorithms, dp, string suffix structures, strings	2700	x959
2144D	Price Tags brute force, dp, math	1800	x7073
2144A	Cut the Array brute force, constructive algorithms, math, number theory	800	x21805
2143A	All Lengths Subtraction brute force, two pointers	800	x20892
2141C	Minimum on Subarrays *special problem, brute force	1800	x347
2138E2	Determinant Construction (Hard Version) brute force, constructive algorithms, math, matrices, number theory	3100	x186
2138E1	Determinant Construction (Easy Version) brute force, constructive algorithms, math, matrices, number theory	3100	x243
2138D	Antiamuny and Slider Movement brute force, combinatorics, implementation, math, sortings	2600	x645
2138C2	Maple and Tree Beauty (Hard Version) bitmasks, brute force, dfs and similar, dp, fft, trees	2000	x3402
2138C1	Maple and Tree Beauty (Easy Version) brute force, dfs and similar, dp, graphs, trees	1800	x5479

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