Problemset - Codeforces

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Codeforces Round #630 (Div. 2)
3 days

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Difficulty: —

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Problems

#	Name
949F	Astronomy geometry, probabilities	3200	x31
1190F	Tokitsukaze and Powers number theory, probabilities	3300	x40
1236F	Alice and the Cactus dfs and similar, graphs, math, probabilities	2900	x60
1210F2	Marek and Matching (hard version) brute force, probabilities	3100	x61
913H	Don't Exceed math, probabilities	3400	x61
98B	Help King implementation, probabilities, trees	2600	x65
424E	Colored Jenga dfs and similar, dp, probabilities	2500	x76
1210F1	Marek and Matching (easy version) brute force, probabilities	2900	x83
802F	Marmots (hard) math, probabilities	2800	x85
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3100	x92
618G	Combining Slimes dp, math, matrices, probabilities	3300	x94
107E	Darts geometry, probabilities	2600	x94
1081G	Mergesort Strikes Back math, probabilities	3000	x95
1067D	Computer Game dp, greedy, math, probabilities	2800	x99
1267G	Game Relics math, probabilities	3100	x119
335E	Counting Skyscrapers dp, math, probabilities	2900	x126
303E	Random Ranking dp, math, probabilities	2800	x146
457D	Bingo! combinatorics, math, probabilities	2700	x152
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2900	x157
98E	Help Shrek and Donkey dp, games, math, probabilities	2500	x158
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x185
1286D	LCC data structures, math, matrices, probabilities	2900	x186
1264D2	Beautiful Bracket Sequence (hard version) combinatorics, probabilities	3000	x189
446D	DZY Loves Games math, matrices, probabilities	2800	x189
277D	Google Code Jam dp, probabilities	2700	x206
1316F	Battalion Strength data structures, divide and conquer, probabilities	2800	x220
679D	Bear and Chase brute force, dfs and similar, graphs, implementation, math, probabilities	2900	x229
175D	Plane of Tanks: Duel brute force, dp, math, probabilities	2400	x229
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x230
183D	T-shirt dp, greedy, probabilities	2800	x246
553E	Kyoya and Train dp, fft, graphs, math, probabilities	3300	x253
68D	Half-decay tree data structures, divide and conquer, dp, math, probabilities	2400	x274
559D	Randomizer combinatorics, geometry, probabilities	2800	x275
1198F	GCD Groups 2 greedy, number theory, probabilities	2900	x283
248E	Piglet's Birthday dp, math, probabilities	2700	x288
623D	Birthday greedy, math, probabilities	2600	x297
913F	Strongly Connected Tournament dp, graphs, math, probabilities	2700	x302
441E	Valera and Number bitmasks, dp, math, probabilities	2700	x305
643E	Bear and Destroying Subtrees dp, math, probabilities, trees	2600	x311
717H	Pokermon League challenge math, probabilities	2400	x314
123E	Maze dfs and similar, dp, probabilities, trees	2600	x322
113D	Museum math, matrices, probabilities	2500	x328
1096E	The Top Scorer combinatorics, dp, math, probabilities	2600	x337
229E	Gifts combinatorics, dp, math, probabilities	2500	x340
1045D	Interstellar battle math, probabilities, trees	2600	x345
1061F	Lost Root interactive, probabilities	2400	x355
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x358
345A	Expecting Trouble *special problem, probabilities	1600	x361
1153F	Serval and Bonus Problem combinatorics, dp, math, probabilities	2800	x364
1187F	Expected Square Beauty dp, math, probabilities	2600	x366
1295F	Good Contest combinatorics, dp, probabilities	2600	x374
464D	World of Darkraft - 2 dp, probabilities	2600	x376
712E	Memory and Casinos data structures, math, probabilities	2700	x385
1172C2	Nauuo and Pictures (hard version) dp, probabilities	2700	x387
1254D	Tree Queries data structures, probabilities, trees	2600	x407
26D	Tickets combinatorics, math, probabilities	2800	x418
494C	Helping People dp, probabilities	2900	x422
513G2	Inversions problem dp, probabilities	2400	x426
50D	Bombing binary search, dp, probabilities	2100	x434
633E	Startup Funding binary search, constructive algorithms, data structures, probabilities, two pointers	2400	x452
85C	Petya and Tree binary search, dfs and similar, probabilities, sortings, trees	2200	x455
1194F	Crossword Expert combinatorics, dp, number theory, probabilities, two pointers	2500	x463
1278F	Cards combinatorics, dp, math, number theory, probabilities	2600	x465
605E	Intergalaxy Trips probabilities, shortest paths	2600	x477
895E	Eyes Closed data structures, probabilities	2500	x484
1264D1	Beautiful Bracket Sequence (easy version) combinatorics, dp, probabilities	2600	x489
150C	Smart Cheater data structures, math, probabilities	2300	x491
28C	Bath Queue combinatorics, dp, probabilities	2700	x533
749E	Inversions After Shuffle data structures, probabilities	2600	x542
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2500	x550
596D	Wilbur and Trees dp, math, probabilities, sortings	2500	x552
482C	Game with Strings bitmasks, dp, probabilities	2800	x562
1156F	Card Bag dp, math, probabilities	2500	x570
417E	Square Table constructive algorithms, math, probabilities	2400	x581
629E	Famil Door and Roads combinatorics, data structures, dfs and similar, dp, probabilities, trees	2400	x583
1172C1	Nauuo and Pictures (easy version) dp, probabilities	2500	x595
24D	Broken robot dp, probabilities	2400	x595
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x628
1310D	Tourism dp, graphs, probabilities	2300	x630
138C	Mushroom Gnomes - 2 binary search, data structures, probabilities, sortings	2500	x644
859D	Third Month Insanity dp, probabilities, trees	2100	x646
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	2900	x666
105B	Dark Assembly brute force, probabilities	1800	x668
54C	First Digit Law dp, math, probabilities	2000	x673
1264C	Beautiful Mirrors with queries data structures, probabilities	2400	x674
768F	Barrels and boxes brute force, combinatorics, math, number theory, probabilities	2300	x680
398B	Painting The Wall dp, probabilities		x682
641D	Little Artem and Random Variable dp, implementation, math, probabilities	2300	x705
840D	Destiny data structures, probabilities	2400	x746
268E	Playlist math, probabilities, sortings	2100	x757
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x760
364D	Ghd brute force, math, probabilities	2600	x766
896C	Willem, Chtholly and Seniorious data structures, probabilities	2700	x771
444B	DZY Loves FFT probabilities	2400	x788
1042E	Vasya and Magic Matrix dp, math, probabilities	2300	x797
204C	Little Elephant and Furik and Rubik math, probabilities	2200	x817
960E	Alternating Tree combinatorics, dfs and similar, divide and conquer, dp, probabilities, trees	2200	x819
698C	LRU bitmasks, dp, math, probabilities	2700	x831
498B	Name That Tune dp, probabilities, two pointers	2500	x861
1139D	Steps to One dp, math, number theory, probabilities	2300	x862

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