Problemset - Codeforces

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Problems

#	Name
1799G	Count Voting combinatorics, dp, math	2600	x796
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1222
1799B	Equalize by Divide brute force, constructive algorithms, greedy, math	1200	x11452
1799A	Recent Actions data structures, greedy, implementation, math	800	x11640
1798F	Gifts from Grandfather Ahmed dp, math, number theory	2500	x505
1798D	Shocking Arrangement constructive algorithms, greedy, math	1600	x10192
1798C	Candy Store greedy, math, number theory	1700	x8288
1797E	Li Hua and Array brute force, data structures, dsu, math, number theory, two pointers	2300	x1305
1796F	Strange Triples brute force, math, number theory	2900	x175
1796C	Maximum Set binary search, math	1600	x10569
1795E	Explosions? binary search, data structures, dp, greedy, math	2200	x2068
1795D	Triangle Coloring combinatorics, math	1600	x9316
1794D	Counting Factorizations combinatorics, divide and conquer, dp, math, number theory	1900	x3627
1794C	Scoring Subsequences binary search, greedy, math, two pointers	1300	x14129
1794B	Not Dividing constructive algorithms, greedy, math	900	x23160
1793D	Moscow Gorillas binary search, dp, greedy, implementation, math, two pointers	1800	x6285
1793B	Fedya and Array constructive algorithms, math	1100	x15924
1793A	Yet Another Promotion greedy, math	800	x18122
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x6332
1792C	Min Max Sort binary search, brute force, greedy, math, two pointers	1500	x14306
1792B	Stand-up Comedian greedy, math	1200	x21605
1790F	Timofey and Black-White Tree brute force, dfs and similar, divide and conquer, graphs, greedy, math, shortest paths, trees	2100	x3394
1790C	Premutation brute force, implementation, math	1000	x24200
1790B	Taisia and Dice greedy, greedy, math	800	x27577
1790A	Polycarp and the Day of Pi implementation, math, strings	800	x37388
1789E	Serval and Music Game brute force, dp, implementation, math, number theory	2500	x825
1789C	Serval and Toxel's Arrays combinatorics, dp, implementation, math	1500	x8658
1789A	Serval and Mocha's Array brute force, math, number theory	800	x19590
1788D	Moving Dots binary search, brute force, combinatorics, math, two pointers	2000	x3969
1788C	Matching Numbers constructive algorithms, greedy, math	1300	x17458
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x20203
1788A	One and Two brute force, implementation, math	800	x31761
1787F	Inverse Transformation constructive algorithms, implementation, math	2500	x690
1787E	The Harmonization of XOR bitmasks, constructive algorithms, greedy, math	2100	x2374
1787C	Remove the Bracket dp, greedy, math	1600	x7166
1787B	Number Factorization greedy, math, number theory	1100	x13380
1787A	Exponential Equation constructive algorithms, math	800	x19285
1783E	Game of the Year brute force, data structures, math, number theory	2300	x2127
1783B	Matrix of Differences constructive algorithms, math	1100	x17860
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x30942
1781F	Bracket Insertion combinatorics, dp, math, trees	2700	x919
1781D	Many Perfect Squares brute force, math, number theory	1800	x5559
1781A	Parallel Projection geometry, math	800	x15142
1780G	Delicious Dessert binary search, dsu, hashing, math, number theory, string suffix structures	2400	x754
1780E	Josuke and Complete Graph binary search, brute force, data structures, math, number theory	2400	x1465
1780B	GCD Partition brute force, greedy, math, number theory	1100	x18446
1779B	MKnez's ConstructiveForces Task constructive algorithms, math	900	x23718
1778F	Maximizing Root dfs and similar, dp, graphs, math, number theory, trees	2600	x675
1778E	The Tree Has Fallen! bitmasks, dfs and similar, math, trees	2500	x904
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x2827
1778B	The Forbidden Permutation greedy, math	1300	x13390
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3554
1777C	Quiz Master binary search, math, number theory, sortings, two pointers	1700	x8747
1777B	Emordnilap combinatorics, greedy, math	900	x17633
1777A	Everybody Likes Good Arrays! greedy, math	800	x25148
1776N	Count Permutations math	3500	x83
1776L	Controllers binary search, math	1500	x6230
1776K	Uniform Chemistry dp, math	3200	x69
1776G	Another Wine Tasting Event combinatorics, constructive algorithms, math, strings	2100	x2083
1776D	Teamwork constructive algorithms, greedy, math	2800	x371
1775F	Laboratory on Pluto constructive algorithms, dp, greedy, math	2500	x769
1775D	Friendly Spiders dfs and similar, graphs, math, number theory, shortest paths	1800	x6370
1775C	Interesting Sequence bitmasks, math	1600	x10652
1774B	Coloring constructive algorithms, greedy, math	1500	x12403
1774A	Add Plus Minus Sign constructive algorithms, math	800	x22522
1773J	Jumbled Trees constructive algorithms, math	2900	x109
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x391
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1568
1772G	Gaining Rating binary search, greedy, implementation, math, sortings, two pointers	2200	x1375
1772D	Absolute Sorting constructive algorithms, math	1400	x16135
1772C	Different Differences constructive algorithms, greedy, math	1000	x23994
1771C	Hossam and Trainees greedy, math, number theory	1600	x9815
1771A	Hossam and Combinatorics combinatorics, math, sortings	900	x23113
1770G	Koxia and Bracket divide and conquer, fft, math	3400	x159
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x680
1770E	Koxia and Tree combinatorics, dfs and similar, dp, dsu, math, probabilities, trees	2400	x1378
1770C	Koxia and Number Theory brute force, chinese remainder theorem, math, number theory	1700	x8659
1769B2	Копирование файлов II *special problem, binary search, brute force, math	1400	x884
1769B1	Копирование файлов I *special problem, brute force, implementation, math	1000	x1377
1769A	Узкая дорога *special problem, math	800	x1972
1768E	Partial Sorting combinatorics, math, number theory	2300	x1917
1768B	Quick Sort greedy, math	900	x23287
1768A	Greatest Convex greedy, math, number theory	800	x29073
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x943
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x10016
1766D	Lucky Chains math, number theory	1600	x9019
1765M	Minimum LCM math, number theory	1000	x16276
1765K	Torus Path greedy, math	1500	x5910
1765J	Hero to Zero graph matchings, math	2900	x213
1765E	Exchange brute force, math	1000	x10206
1764D	Doremy's Pegging Game combinatorics, dp, math	2000	x2798
1764B	Doremy's Perfect Math Class math, number theory	900	x15998
1763E	Node Pairs dp, graphs, math, number theory	2200	x1826
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x2083
1763B	Incinerate binary search, brute force, data structures, implementation, math, sortings	1200	x14749
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15766
1762E	Tree Sum combinatorics, math, trees	2600	x682
1762C	Binary Strings are Fun combinatorics, math	1400	x9252
1762A	Divide and Conquer greedy, math, number theory	800	x19297
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x83