Problemset - Codeforces

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Problems

#	Name
1774A	Add Plus Minus Sign constructive algorithms, math	800	x22003
1773L	Lisa's Sequences dp	3500	x28
1773K	King's Puzzle constructive algorithms	1900	x1384
1773J	Jumbled Trees constructive algorithms, math	2900	x102
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x458
1773H	Hot and Cold binary search, interactive	2600	x343
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x321
1773F	Football constructive algorithms	800	x3955
1773E	Easy Assembly greedy, sortings	1400	x4674
1773D	Dominoes combinatorics, flows, graph matchings, greedy	2600	x426
1773C	Cactus Meets Torus	3500	x28
1773B	BinCoin binary search, divide and conquer, hashing, implementation, probabilities, trees	2200	x736
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1483
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1275
1772F	Copy of a Copy of a Copy constructive algorithms, dfs and similar, graphs, implementation, sortings	2000	x2238
1772E	Permutation Game games	1700	x6442
1772D	Absolute Sorting constructive algorithms, math	1400	x15018
1772C	Different Differences constructive algorithms, greedy, math	1000	x22746
1772B	Matrix Rotation brute force, implementation	800	x28234
1772A	A+B? implementation	800	x44300
1771F	Hossam and Range Minimum Query binary search, bitmasks, data structures, hashing, probabilities, strings, trees	2500	x972
1771E	Hossam and a Letter brute force, dp, implementation, two pointers	2500	x662
1771D	Hossam and (sub-)palindromic tree brute force, data structures, dfs and similar, dp, strings, trees	2100	x2605
1771C	Hossam and Trainees greedy, math, number theory	1600	x9064
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x12935
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x22100
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x99
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x152
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x618
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1300
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x3680
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x8296
1770B	Koxia and Permutation constructive algorithms	1000	x19034
1770A	Koxia and Whiteboards brute force, greedy	1000	x22925
1769D3	Игра в Девятку III *special problem, brute force	2300	x116
1769D2	Игра в Девятку II *special problem, brute force	2200	x187
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x368
1769C2	Подкрутка II *special problem, dp	1300	x916
1769C1	Подкрутка I *special problem, brute force, dp, greedy	1200	x932
1769B2	Копирование файлов II *special problem, binary search, brute force, math	1400	x857
1769B1	Копирование файлов I *special problem, brute force, implementation, math	1000	x1316
1769A	Узкая дорога *special problem, math	800	x1905
1768F	Wonderful Jump dp, greedy	2900	x787
1768E	Partial Sorting combinatorics, math, number theory	2300	x1788
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x6725
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x13604
1768B	Quick Sort greedy, math	900	x22073
1768A	Greatest Convex greedy, math, number theory	800	x28063
1767F	Two Subtrees data structures, trees	3100	x248
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x843
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x9457
1767C	Count Binary Strings data structures, dp	2100	x2524
1767B	Block Towers data structures, greedy, sortings	800	x19601
1767A	Cut the Triangle implementation	800	x20156
1766F	MCF flows	2800	x258
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1134
1766D	Lucky Chains math, number theory	1600	x8433
1766C	Hamiltonian Wall dp, implementation	1300	x13148
1766B	Notepad# implementation	1000	x20143
1766A	Extremely Round brute force, implementation	800	x24133
1765N	Number Reduction greedy	1500	x4442
1765M	Minimum LCM math, number theory	1000	x12839
1765L	Project Manager brute force, data structures, implementation	2400	x563
1765K	Torus Path greedy, math	1500	x5398
1765J	Hero to Zero graph matchings, math	2900	x187
1765I	Infinite Chess implementation, shortest paths	2800	x181
1765H	Hospital Queue binary search, graphs, greedy, implementation	2200	x1193
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x369
1765F	Chemistry Lab dp, geometry, probabilities	2200	x588
1765E	Exchange brute force, math	1000	x9566
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x3927
1765C	Card Guessing combinatorics, dp, probabilities	2600	x368
1765B	Broken Keyboard greedy	800	x8728
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x667
1764H	Doremy's Paint 2 data structures	3400	x167
1764G3	Doremy's Perfect DS Class (Hard Version) binary search, interactive	3300	x435
1764G2	Doremy's Perfect DS Class (Medium Version) binary search, interactive	3000	x500
1764G1	Doremy's Perfect DS Class (Easy Version) binary search, interactive	2900	x552
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x924
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1184
1764D	Doremy's Pegging Game combinatorics, dp, math	2000	x2645
1764C	Doremy's City Construction graphs, greedy	1400	x9078
1764B	Doremy's Perfect Math Class math, number theory	900	x15302
1764A	Doremy's Paint greedy	800	x16204
1763F	Edge Queries data structures, dfs and similar, dp, dsu, graphs, trees	3000	x419
1763E	Node Pairs dp, graphs, math, number theory	2200	x1702
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x1965
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x6306
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x13953
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15308
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x100
1762F	Good Pairs binary search, data structures, dp	2600	x562
1762E	Tree Sum combinatorics, math, trees	2600	x607
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x3300
1762C	Binary Strings are Fun combinatorics, math	1400	x8881
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x16216
1762A	Divide and Conquer greedy, math, number theory	800	x18592
1761G	Centroid Guess interactive, probabilities, trees	3500	x98
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x77
1761F1	Anti-median (Easy Version) dp, math	3100	x198