Problemset - Codeforces

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Codeforces Round (Div. 1 + Div. 2)
13 days

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Problems

#	Name
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1659
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2925
1772E	Permutation Game games	1700	x7822
1772D	Absolute Sorting constructive algorithms, math	1400	x19138
1772C	Different Differences constructive algorithms, greedy, math	1000	x26586
1772B	Matrix Rotation brute force, implementation	800	x33613
1772A	A+B? implementation	800	x62867
1771F	Hossam and Range Minimum Query binary search, bitmasks, data structures, hashing, probabilities, strings, trees	2500	x1751
1771E	Hossam and a Letter brute force, dp, implementation, two pointers	2500	x861
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x3335
1771C	Hossam and Trainees greedy, math, number theory	1600	x12069
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x23286
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x25807
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x178
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x197
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x1114
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1665
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x4524
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x9841
1770B	Koxia and Permutation constructive algorithms	1000	x21070
1770A	Koxia and Whiteboards brute force, greedy	1000	x25566
1769D3	Игра в Девятку III *special problem, brute force	2300	x130
1769D2	Игра в Девятку II *special problem, brute force	2200	x215
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x426
1769C2	Подкрутка II *special problem, dp	1300	x1097
1769C1	Подкрутка I *special problem, brute force, dp, greedy	1200	x1130
1769B2	Копирование файлов II *special problem, binary search, brute force, math	1400	x964
1769B1	Копирование файлов I *special problem, brute force, implementation, math	1000	x1639
1769A	Узкая дорога *special problem, math	800	x2186
1768F	Wonderful Jump dp, greedy	2900	x1367
1768E	Partial Sorting combinatorics, math, number theory	2300	x2386
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x9443
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x15915
1768B	Quick Sort greedy, math	900	x26082
1768A	Greatest Convex greedy, math, number theory	800	x31319
1767F	Two Subtrees data structures, trees	3100	x473
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x1348
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x11421
1767C	Count Binary Strings data structures, dp	2100	x3214
1767B	Block Towers data structures, greedy, sortings	800	x22296
1767A	Cut the Triangle implementation	800	x21715
1766F	MCF flows	2800	x437
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1561
1766D	Lucky Chains math, number theory	1600	x11068
1766C	Hamiltonian Wall dp, implementation	1300	x15203
1766B	Notepad# implementation	1000	x24210
1766A	Extremely Round brute force, implementation	800	x52206
1765N	Number Reduction greedy	1500	x6185
1765M	Minimum LCM math, number theory	1000	x36444
1765L	Project Manager brute force, data structures, implementation	2400	x705
1765K	Torus Path greedy, math	1500	x6935
1765J	Hero to Zero graph matchings, math	2900	x403
1765I	Infinite Chess implementation, shortest paths	2800	x312
1765H	Hospital Queue binary search, graphs, greedy, implementation	2200	x1610
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x504
1765F	Chemistry Lab dp, geometry, probabilities	2200	x805
1765E	Exchange brute force, math	1000	x12101
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x5010
1765C	Card Guessing combinatorics, dp, probabilities	2600	x705
1765B	Broken Keyboard greedy	800	x10006
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x895
1764H	Doremy's Paint 2 data structures	3400	x305
1764G3	Doremy's Perfect DS Class (Hard Version) binary search, interactive	3300	x674
1764G2	Doremy's Perfect DS Class (Medium Version) binary search, interactive	3000	x794
1764G1	Doremy's Perfect DS Class (Easy Version) binary search, interactive	2900	x846
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x1287
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1474
1764D	Doremy's Pegging Game combinatorics, dp, math	2000	x3256
1764C	Doremy's City Construction graphs, greedy	1400	x10575
1764B	Doremy's Perfect Math Class math, number theory	900	x18247
1764A	Doremy's Paint greedy	800	x17582
1763F	Edge Queries data structures, dfs and similar, dp, dsu, graphs, trees	3000	x966
1763E	Node Pairs dp, graphs, math, number theory	2200	x2293
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x2428
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x8051
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x16735
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x17224
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x161
1762F	Good Pairs binary search, data structures, dp	2600	x930
1762E	Tree Sum combinatorics, math, trees	2600	x992
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x4623
1762C	Binary Strings are Fun combinatorics, math	1400	x10279
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x18860
1762A	Divide and Conquer greedy, math, number theory	800	x20807
1761G	Centroid Guess interactive, probabilities, trees	3500	x159
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x121
1761F1	Anti-median (Easy Version) dp, math	3100	x353
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x2232
1761D	Carry Bit combinatorics, math	2100	x2909
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x10862
1761B	Elimination of a Ring constructive algorithms, greedy, implementation	1000	x14886
1761A	Two Permutations brute force, constructive algorithms	800	x42158
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x11118
1760F	Quests binary search, greedy, sortings	1500	x15597
1760E	Binary Inversions data structures, greedy, math	1100	x23389
1760D	Challenging Valleys implementation, two pointers	1000	x27667
1760C	Advantage data structures, implementation, sortings	800	x45229
1760B	Atilla's Favorite Problem greedy, implementation, strings	800	x54853
1760A	Medium Number implementation, sortings	800	x84011
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x5725

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