Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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brute force

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Problems

#	Name
460E	Roland and Rose brute force, geometry, math, sortings	2700	x334
1578K	Kingdom of Islands brute force, graphs, implementation	2800	x346
274C	The Last Hole! brute force, geometry	2600	x346
518F	Pasha and Pipe binary search, brute force, combinatorics, dp, implementation	2300	x347
1359F	RC Kaboom Show binary search, brute force, data structures, geometry, math	2900	x348
1334G	Substring Search bitmasks, brute force, fft	2900	x353
1599G	Shortest path brute force, geometry, math, shortest paths	2700	x357
436F	Banners brute force, data structures, dp	3000	x358
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x359
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2700	x360
1774G	Segment Covering brute force, combinatorics, constructive algorithms, data structures, dp, trees	3200	x361
1651F	Tower Defense binary search, brute force, data structures	3000	x361
1033F	Boolean Computer bitmasks, brute force, fft, math	2800	x364
852A	Digits brute force, implementation, math	2500	x364
1769D1	Игра в Девятку I *special problem, brute force, dp	1800	x367
43E	Race brute force, implementation, two pointers	2300	x370
1792F2	Graph Coloring (hard version) brute force, combinatorics, divide and conquer, dp, fft, graphs	2900	x372
333C	Lucky Tickets brute force, constructive algorithms	2700	x374
1854E	Game Bundles brute force, constructive algorithms, dp, greedy, math	3000	x378
850E	Random Elections bitmasks, brute force, divide and conquer, fft, math	2800	x378
391B	Word Folding brute force		x380
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x386
358E	Dima and Kicks brute force, dsu, graphs, implementation	2300	x386
201D	Brand New Problem bitmasks, brute force, dp	2600	x388
1787G	Colorful Tree Again brute force, data structures, trees	3000	x394
263E	Rhombus brute force, data structures, dp	2500	x394
60D	Savior brute force, dsu, math	2500	x394
1495E	Qingshan and Daniel brute force, data structures, greedy, implementation	3200	x396
1488C	Two Policemen *special problem, binary search, brute force, math	1900	x397
1155F	Delivery Oligopoly brute force, dp, graphs	2800	x398
1867F	Most Different Tree brute force, constructive algorithms, dfs and similar, greedy, hashing	2700	x399
761F	Dasha and Photos brute force, data structures, dp, implementation	2600	x401
261E	Maxim and Calculator brute force, dp, two pointers	2800	x402
1728G	Illumination binary search, bitmasks, brute force, combinatorics, dp, math, two pointers	2700	x407
260E	Dividing Kingdom binary search, brute force, data structures	2500	x408
747F	Igor and Interesting Numbers brute force, combinatorics, dp, math	2500	x409
93C	Azembler brute force, implementation	2500	x409
1808E3	Minibuses on Venus (hard version) brute force, combinatorics, dp, math	2800	x413
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x417
1063D	Candies for Children brute force, math	2600	x417
65D	Harry Potter and the Sorting Hat brute force, dfs and similar, hashing	2200	x419
245G	Suggested Friends brute force, graphs	2200	x423
1600F	Party Organization brute force, math, probabilities	2300	x432
1535F	String Distance binary search, brute force, data structures, hashing, implementation, strings	3000	x437
250E	Mad Joe brute force	2000	x438
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3200	x439
1905F	Field Should Not Be Empty brute force, data structures, divide and conquer	2600	x442
42C	Safe cracking brute force, constructive algorithms	2200	x444
1552G	A Serious Referee bitmasks, brute force, dfs and similar, sortings	3000	x446
1181E1	A Story of One Country (Easy) brute force, divide and conquer, sortings	2500	x448
1814F	Communication Towers brute force, divide and conquer, dsu	2700	x451
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x453
955D	Scissors brute force, strings	2600	x453
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x458
833C	Ever-Hungry Krakozyabra brute force, combinatorics, greedy, math	2700	x460
161E	Polycarpus the Safecracker brute force, dp	2500	x462
1879F	Last Man Standing brute force, data structures, number theory	2800	x468
1340F	Nastya and CBS brute force, data structures, hashing	3300	x469
311C	Fetch the Treasure brute force, data structures, graphs, shortest paths	2500	x475
685D	Kay and Eternity brute force, implementation, sortings	2600	x477
316D1	PE Lesson brute force, dp	2300	x477
215C	Crosses brute force, implementation	2100	x478
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x479
1268D	Invertation in Tournament brute force, divide and conquer, graphs, math	3200	x480
163D	Large Refrigerator brute force	2900	x480
1834F	Typewriter brute force, math	2500	x487
873E	Awards For Contestants brute force, data structures, dp	2300	x487
1651E	Sum of Matchings brute force, combinatorics, constructive algorithms, dfs and similar, graph matchings, greedy, math	2600	x493
254D	Rats brute force, dfs and similar, graphs, implementation, shortest paths	2300	x497
698D	Limak and Shooting Points brute force, geometry, math	2600	x502
685E	Travelling Through the Snow Queen's Kingdom bitmasks, brute force, divide and conquer, graphs	2800	x502
54D	Writing a Song brute force, dp, strings	2100	x503
912C	Perun, Ult! brute force, greedy, sortings	2500	x506
1889D	Game of Stacks brute force, dfs and similar, graphs, implementation, trees	3000	x510
1028F	Make Symmetrical brute force	2900	x510
1789F	Serval and Brain Power bitmasks, brute force, dp, greedy, implementation, strings	2700	x511
1606F	Tree Queries brute force, dp, trees	2800	x511
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x518
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x522
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x528
60C	Mushroom Strife brute force, dfs and similar	2100	x549
293C	Cube Problem brute force, math, number theory	2400	x551
1331F	Elementary! *special problem, brute force, dp, strings		x552
852I	Dating brute force, dfs and similar, graphs, trees	2300	x554
424D	Biathlon Track binary search, brute force, constructive algorithms, data structures, dp	2300	x554
1687D	Cute number binary search, brute force, data structures, dsu, implementation, math	2900	x556
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x558
963C	Cutting Rectangle brute force, math, number theory	2600	x558
1765L	Project Manager brute force, data structures, implementation	2400	x559
1612F	Armor and Weapons brute force, dp, greedy, shortest paths	2800	x560
34E	Collisions brute force, implementation, math	2000	x563
1948G	MST with Matching bitmasks, brute force, dsu, graph matchings, trees	3100	x572
364C	Beautiful Set brute force, number theory	2300	x580
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x581
1545C	AquaMoon and Permutations 2-sat, brute force, combinatorics, constructive algorithms, graph matchings, graphs	2800	x581
677E	Vanya and Balloons binary search, brute force, dp, implementation	2300	x581
1616F	Tricolor Triangles brute force, graphs, math, matrices	2900	x582
1830D	Mex Tree brute force, dp, trees	2800	x592
1819D	Misha and Apples brute force, data structures, dp, two pointers	2800	x593
949E	Binary Cards brute force	2700	x595