Problemset - Codeforces

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Before contest
Codeforces Round (Div. 1)
6 days

Before contest
Codeforces Round (Div. 2)
6 days

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Problems

#	Name
346A	Alice and Bob games, math, number theory	1600	x8849
345G	Suffix Subgroup *special problem, strings	2200	x101
345F	Superstitions Inspection *special problem	2700	x48
345E	Black Cat Rush *special problem	2700	x51
345D	Chain Letter *special problem, dfs and similar, graphs	2200	x80
345C	Counting Fridays *special problem	2000	x128
345B	Triskaidekaphobia *special problem	2100	x126
345A	Expecting Trouble *special problem, probabilities	1500	x496
344B	Simple Molecules brute force, graphs, math	1200	x9043
344A	Magnets implementation	800	x129023
343E	Pumping Stations brute force, dfs and similar, divide and conquer, flows, graphs, greedy, trees	2900	x801
343D	Water Tree data structures, dfs and similar, graphs, trees	2100	x6001
343C	Read Time binary search, greedy, two pointers	1900	x3042
343B	Alternating Current data structures, greedy, implementation	1600	x14419
343A	Rational Resistance math, number theory	1600	x9103
342E	Xenia and Tree data structures, divide and conquer, trees	2400	x8992
342D	Xenia and Dominoes bitmasks, dfs and similar, dp	2100	x509
342C	Cupboard and Balloons geometry	1900	x1870
342B	Xenia and Spies brute force, greedy, implementation	1500	x4047
342A	Xenia and Divisors greedy, implementation	1200	x12918
341E	Candies Game constructive algorithms, greedy	3000	x472
341D	Iahub and Xors data structures	2500	x1267
340E	Iahub and Permutations combinatorics, math	2000	x2522
340D	Bubble Sort Graph binary search, data structures, dp	1500	x7355
340C	Tourist Problem combinatorics, implementation, math	1600	x4316
340B	Maximal Area Quadrilateral brute force, geometry	2100	x2129
340A	The Wall math	1200	x7800
339E	Three Swaps constructive algorithms, dfs and similar, greedy	2700	x558
339D	Xenia and Bit Operations data structures, trees	1700	x27041
339C	Xenia and Weights constructive algorithms, dfs and similar, dp, graphs, greedy, shortest paths	1700	x8419
339B	Xenia and Ringroad implementation	1000	x72591
339A	Helpful Maths greedy, implementation, sortings, strings	800	x229484
338E	Optimize! data structures	2600	x1039
338D	GCD Table chinese remainder theorem, math, number theory	2900	x1187
337E	Divisor Tree brute force, number theory, trees	2200	x1040
337D	Book of Evil dfs and similar, divide and conquer, dp, trees	2000	x6314
337C	Quiz binary search, greedy, math, matrices, number theory	1600	x4998
337B	Routine Problem greedy, math, number theory	1400	x9498
337A	Puzzles greedy	900	x83186
336E	Vasily the Bear and Painting Square bitmasks, combinatorics, dp, implementation	2700	x117
336D	Vasily the Bear and Beautiful Strings combinatorics, math, number theory	2100	x1055
336C	Vasily the Bear and Sequence brute force, greedy, implementation, number theory	1800	x2521
336B	Vasily the Bear and Fly math	1900	x1258
336A	Vasily the Bear and Triangle implementation, math	1000	x10251
335F	Buy One, Get One Free dp, greedy	3000	x674
335E	Counting Skyscrapers dp, math, probabilities	2800	x228
335D	Rectangles and Square brute force, dp	2400	x332
335C	More Reclamation games	2100	x545
335B	Palindrome constructive algorithms, dp	1900	x2154
335A	Banana binary search, constructive algorithms, greedy	1400	x2647
334B	Eight Point Sets sortings	1400	x3635
334A	Candy Bags implementation	1000	x19077
333E	Summer Earnings binary search, bitmasks, brute force, geometry, sortings	2500	x1171
333D	Characteristics of Rectangles binary search, bitmasks, brute force, implementation, sortings	2100	x2142
333C	Lucky Tickets brute force, constructive algorithms	2700	x397
333B	Chips greedy	1800	x2664
333A	Secrets greedy	1600	x4084
332E	Binary Key dp, greedy, implementation	2400	x311
332D	Theft of Blueprints graphs, math	2400	x389
332C	Students' Revenge data structures, greedy, sortings	2200	x945
332B	Maximum Absurdity data structures, dp, implementation	1500	x8148
332A	Down the Hatch! implementation	1300	x3601
331E2	Deja Vu constructive algorithms, dp	3100	x219
331E1	Deja Vu constructive algorithms, graphs, implementation	2900	x166
331D3	Escaping on Beaveractor data structures, implementation, trees	3000	x182
331D2	Escaping on Beaveractor graphs	2600	x139
331D1	Escaping on Beaveractor dfs and similar, implementation	2400	x209
331C3	The Great Julya Calendar dp	2500	x513
331C2	The Great Julya Calendar dp	2400	x399
331C1	The Great Julya Calendar dp	1100	x6381
331B2	Shave Beaver! data structures	1900	x746
331B1	Shave Beaver! implementation	1700	x761
331A2	Oh Sweet Beaverette data structures, sortings	1500	x1440
331A1	Oh Sweet Beaverette brute force, implementation	1400	x1407
330B	Road Construction constructive algorithms, graphs	1300	x17729
330A	Cakeminator brute force, implementation	800	x29415
329E	Evil math	3100	x171
329D	The Evil Temple and the Moving Rocks constructive algorithms	2500	x413
329C	Graph Reconstruction constructive algorithms	2400	x942
329B	Biridian Forest dfs and similar, shortest paths	1500	x6680
329A	Purification constructive algorithms, greedy	1500	x4684
328B	Sheldon and Ice Pieces greedy	1500	x1395
328A	IQ Test implementation	1800	x2164
327E	Axis Walking bitmasks, combinatorics, constructive algorithms, dp, meet-in-the-middle	2300	x1443
327D	Block Tower constructive algorithms, dfs and similar, graphs	1900	x2337
327C	Magic Five combinatorics, math	1700	x3285
327B	Hungry Sequence math	1200	x20226
327A	Flipping Game brute force, dp, implementation	1200	x43833
325E	The Red Button combinatorics, dfs and similar, dsu, graphs, greedy	2800	x845
325D	Reclamation dsu	2900	x548
325C	Monsters and Diamonds dfs and similar, graphs, shortest paths	2600	x352
325B	Stadium and Games binary search, math	1800	x1588
325A	Square and Rectangles implementation	1500	x2170
323C	Two permutations data structures	2400	x618
323B	Tournament-graph constructive algorithms, graphs	2200	x408
323A	Black-and-White Cube combinatorics, constructive algorithms	1600	x811
322B	Ciel and Flowers combinatorics, math	1600	x12040
322A	Ciel and Dancing greedy	1000	x8320
321E	Ciel and Gondolas data structures, divide and conquer, dp	2600	x5279
321D	Ciel and Flipboard dp, greedy, math	2900	x556