Problemset - Codeforces

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Problems

#	Name
1701B	Permutation greedy	800	x19965
1701A	Grass Field implementation	800	x25861
1700F	Puzzle constructive algorithms, dp, greedy	2600	x847
1700E	Serega the Pirate brute force, constructive algorithms	2600	x824
1700D	River Locks binary search, dp, greedy, math	1900	x5834
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x10458
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x18251
1700A	Optimal Path constructive algorithms, greedy, math	800	x22543
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1083
1699D	Almost Triple Deletions data structures, dp, greedy	2300	x3026
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9400
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19172
1699A	The Third Three Number Problem constructive algorithms, math	800	x23644
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x300
1698F	Equal Reversal constructive algorithms, graphs, implementation, math	2800	x581
1698E	PermutationForces II brute force, combinatorics, greedy, sortings, trees, two pointers	2300	x1573
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x8685
1698C	3SUM Closure brute force, data structures	1300	x17914
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x20645
1698A	XOR Mixup bitmasks, brute force	800	x27848
1697F	Too Many Constraints 2-sat, constructive algorithms, graphs, implementation	2800	x512
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1137
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x4268
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x13934
1697B	Promo greedy, sortings	900	x25510
1697A	Parkway Walk greedy, implementation	800	x25405
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x153
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x265
1696F	Tree Recovery brute force, constructive algorithms, dfs and similar, dsu, graphs, trees	2600	x848
1696E	Placing Jinas combinatorics, math	2000	x3833
1696D	Permutation Graph binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths	1900	x5174
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11306
1696B	NIT Destroys the Universe greedy	900	x19311
1696A	NIT orz! bitmasks, greedy	800	x18318
1695E	Ambiguous Dominoes constructive algorithms, dfs and similar, graphs	2700	x424
1695D2	Tree Queries (Hard Version) constructive algorithms, dfs and similar, dp, greedy, trees	2300	x1919
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2089
1695C	Zero Path brute force, data structures, dp, graphs, greedy, shortest paths	1700	x10374
1695B	Circle Game games, greedy	1000	x18019
1695A	Subrectangle Guess games	800	x16108
1694B	Paranoid String constructive algorithms, greedy	1200	x18515
1694A	Creep greedy, implementation	800	x22121
1693F	I Might Be Wrong binary search, greedy, two pointers	3400	x274
1693E	Outermost Maximums data structures, greedy	3400	x370
1693D	Decinc Dividing brute force, data structures, divide and conquer, dp, greedy	2800	x772
1693C	Keshi in Search of AmShZ graphs, greedy, shortest paths	2300	x2439
1693B	Fake Plastic Trees dfs and similar, dp, greedy, trees	1700	x8063
1693A	Directional Increase greedy	1300	x15645
1692H	Gambling data structures, dp, greedy, math	1700	x7050
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x15918
1692F	3SUM brute force, math	1300	x21291
1692E	Binary Deque binary search, implementation, two pointers	1200	x19930
1692D	The Clock brute force, implementation	1100	x18721
1692C	Where's the Bishop? implementation	800	x32468
1692B	All Distinct greedy, sortings	800	x32766
1692A	Marathon implementation	800	x59898
1691F	K-Set Tree combinatorics, dfs and similar, dp, math, trees	2500	x905
1691E	Number of Groups data structures, dfs and similar, dsu, graphs, greedy, sortings	2300	x1747
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5478
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15092
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21250
1691A	Beat The Odds brute force, greedy, math	800	x29843
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3238
1690F	Shifting String graphs, math, number theory, strings	1700	x6808
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x14495
1690D	Black and White Stripe implementation, two pointers	1000	x26773
1690C	Restoring the Duration of Tasks data structures, greedy, implementation	800	x25403
1690B	Array Decrements greedy, implementation	800	x24734
1690A	Print a Pedestal (Codeforces logo?) constructive algorithms, greedy	800	x32530
1689E	ANDfinity bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2500	x1148
1689D	Lena and Matrix data structures, dp, geometry, shortest paths	1900	x4031
1689C	Infected Tree dfs and similar, dp, trees	1600	x10491
1689B	Mystic Permutation data structures, greedy	900	x17100
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16378
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x7894
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x17854
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x20799
1687F	Koishi's Unconscious Permutation fft, math	3500	x77
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x214
1687D	Cute number binary search, brute force, data structures, dsu, implementation, math	2900	x557
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1336
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3485
1687A	The Enchanted Forest brute force, greedy	1600	x9960
1686B	Odd Subarrays dp, greedy	800	x17899
1686A	Everything Everywhere All But One greedy	800	x20180
1685E	The Ultimate LIS Problem data structures, greedy	3500	x142
1685D2	Permutation Weight (Hard Version) constructive algorithms, greedy	3500	x103
1685D1	Permutation Weight (Easy Version) constructive algorithms, dfs and similar, dsu	2800	x421
1685C	Bring Balance brute force, constructive algorithms, greedy	2600	x915
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3162
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x16482
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x235
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x579
1684F	Diverse Segments data structures, two pointers	2600	x842
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3038
1684D	Traps constructive algorithms, greedy, sortings	1700	x9302
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12019
1684B	Z mod X = C constructive algorithms, math	800	x20602
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23474
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x285