Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
2 days
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Codeforces Round 941 (Div. 2)
2 days
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Problems

#	Name
9A	Die Roll math, probabilities	800	x52265
1454A	Special Permutation constructive algorithms, probabilities	800	x38922
1459A	Red-Blue Shuffle math, probabilities	800	x16761
1788B	Sum of Two Numbers constructive algorithms, greedy, implementation, math, probabilities	1100	x19181
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x28932
312B	Archer math, probabilities	1300	x11039
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x15844
1461C	Random Events dp, math, probabilities	1500	x10828
345A	Expecting Trouble *special problem, probabilities	1500	x476
453A	Little Pony and Expected Maximum probabilities	1600	x9921
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3276
930B	Game with String implementation, probabilities, strings	1600	x2587
1743D	Problem with Random Tests brute force, dp, greedy, probabilities	1700	x7262
518D	Ilya and Escalator combinatorics, dp, math, probabilities	1700	x6666
1279D	Santa's Bot combinatorics, math, probabilities	1700	x5888
621C	Wet Shark and Flowers combinatorics, math, number theory, probabilities	1700	x5276
696B	Puzzles dfs and similar, math, probabilities, trees	1700	x3377
148D	Bag of mice dp, games, math, probabilities	1800	x6735
1729E	Guess the Cycle Size interactive, probabilities	1800	x6708
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5424
442B	Andrey and Problem greedy, math, probabilities	1800	x4845
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics, math, probabilities, trees	1800	x4302
626D	Jerry's Protest brute force, combinatorics, dp, probabilities	1800	x2647
77B	Falling Anvils math, probabilities	1800	x2537
952D	I'm Feeling Lucky! probabilities	1800	x2388
846F	Random Query data structures, math, probabilities, two pointers	1800	x2199
167B	Wizards and Huge Prize dp, math, probabilities	1800	x2085
30C	Shooting Gallery dp, probabilities	1800	x1847
105B	Dark Assembly brute force, probabilities	1800	x795
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5179
540D	Bad Luck Island dp, probabilities	1900	x5151
16E	Fish bitmasks, dp, probabilities	1900	x4602
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4072
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3197
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3179
935D	Fafa and Ancient Alphabet math, probabilities	1900	x2513
351B	Jeff and Furik combinatorics, dp, probabilities	1900	x2271
1773A	Amazing Trick constructive algorithms, graph matchings, math, probabilities	1900	x1475
261B	Maxim and Restaurant dp, math, probabilities	1900	x1360
717D	Dexterina’s Lab games, matrices, probabilities	1900	x1356
109B	Lucky Probability brute force, probabilities	1900	x1319
1753C	Wish I Knew How to Sort dp, math, probabilities	2000	x4144
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x3533
235B	Let's Play Osu! dp, math, probabilities	2000	x3319
1009E	Intercity Travelling combinatorics, math, probabilities	2000	x2882
1612E	Messages brute force, dp, greedy, probabilities, sortings	2000	x2386
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2131
1599C	Bubble Strike combinatorics, math, probabilities, ternary search	2000	x1549
513C	Second price auction bitmasks, probabilities	2000	x1516
54C	First Digit Law dp, math, probabilities	2000	x1242
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1193
204C	Little Elephant and Furik and Rubik math, probabilities	2000	x1075
1265E	Beautiful Mirrors data structures, dp, math, probabilities	2100	x3317
1778D	Flexible String Revisit combinatorics, dp, math, probabilities	2100	x2530
1864E	Guess Game bitmasks, data structures, games, math, probabilities, sortings, strings, trees	2100	x2459
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x2274
912D	Fishes data structures, graphs, greedy, probabilities, shortest paths	2100	x1934
1525E	Assimilation IV combinatorics, dp, math, probabilities, two pointers	2100	x1931
452C	Magic Trick combinatorics, math, probabilities	2100	x1395
268E	Playlist math, probabilities, sortings	2100	x972
859D	Third Month Insanity dp, probabilities, trees	2100	x848
50D	Bombing binary search, dp, probabilities	2100	x596
280C	Game on Tree implementation, math, probabilities, trees	2200	x3461
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2769
768D	Jon and Orbs dp, math, probabilities	2200	x2749
1097D	Makoto and a Blackboard dp, math, number theory, probabilities	2200	x2557
908D	New Year and Arbitrary Arrangement dp, math, probabilities	2200	x2240
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2210
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x1896
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1529
28C	Bath Queue combinatorics, dp, probabilities	2200	x980
138C	Mushroom Gnomes - 2 binary search, data structures, probabilities, sortings	2200	x844
1773B	BinCoin binary search, divide and conquer, hashing, implementation, probabilities, trees	2200	x729
1045D	Interstellar battle math, probabilities, trees	2200	x627
150C	Smart Cheater data structures, math, probabilities	2200	x625
1765F	Chemistry Lab dp, geometry, probabilities	2200	x586
85C	Petya and Tree binary search, dfs and similar, probabilities, sortings, trees	2200	x521
98B	Help King implementation, probabilities, trees	2200	x114
1540B	Tree Array brute force, combinatorics, dp, graphs, math, probabilities, trees	2300	x2483
1824B2	LuoTianyi and the Floating Islands (Hard Version) combinatorics, dfs and similar, math, probabilities, trees	2300	x2471
1139D	Steps to One dp, math, number theory, probabilities	2300	x1972
960E	Alternating Tree combinatorics, dfs and similar, divide and conquer, dp, probabilities, trees	2300	x1805
1042E	Vasya and Magic Matrix dp, math, probabilities	2300	x1679
1096F	Inversion Expectation dp, math, probabilities	2300	x1563
1874C	Jellyfish and EVA dp, graphs, greedy, math, probabilities	2300	x1492
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1406
1623D	Robot Cleaner Revisit implementation, math, probabilities	2300	x1347
1156F	Card Bag dp, math, probabilities	2300	x1325
601C	Kleofáš and the n-thlon dp, math, probabilities	2300	x1284
1310D	Tourism dp, graphs, probabilities	2300	x1280
711E	ZS and The Birthday Paradox math, number theory, probabilities	2300	x1239
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1138
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1107
444B	DZY Loves FFT probabilities	2300	x1031
768F	Barrels and boxes brute force, combinatorics, math, number theory, probabilities	2300	x997
1172C1	Nauuo and Pictures (easy version) dp, probabilities	2300	x983
629E	Famil Door and Roads combinatorics, data structures, dfs and similar, dp, probabilities, trees	2300	x966
895E	Eyes Closed data structures, probabilities	2300	x907
596D	Wilbur and Trees dp, math, probabilities, sortings	2300	x672
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x671

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