Problemset - Codeforces

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Codeforces Round (Div. 2)
7 days

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Problems

#	Name
331B2	Shave Beaver! data structures	1900	x720
331B1	Shave Beaver! implementation	1700	x733
331A2	Oh Sweet Beaverette data structures, sortings	1500	x1413
331A1	Oh Sweet Beaverette brute force, implementation	1400	x1364
330B	Road Construction constructive algorithms, graphs	1300	x17021
329B	Biridian Forest dfs and similar, shortest paths	1500	x6396
329A	Purification constructive algorithms, greedy	1500	x4640
328B	Sheldon and Ice Pieces greedy	1500	x1331
328A	IQ Test implementation	1800	x2065
327D	Block Tower constructive algorithms, dfs and similar, graphs	1900	x2272
327C	Magic Five combinatorics, math	1700	x3199
325B	Stadium and Games binary search, math	1800	x1528
325A	Square and Rectangles implementation	1500	x2157
323A	Black-and-White Cube combinatorics, constructive algorithms	1600	x738
322B	Ciel and Flowers combinatorics, math	1600	x11747
321B	Ciel and Duel dp, flows, greedy	1900	x3087
321A	Ciel and Robot binary search, implementation, math	1700	x3638
320B	Ping-Pong (Easy Version) dfs and similar, graphs	1500	x7245
319B	Psychos in a Line data structures, implementation	1900	x4149
319A	Malek Dance Club combinatorics, math	1600	x2792
318B	Strings of Power implementation, strings, two pointers	1300	x7517
317A	Perfect Pair brute force	1600	x4643
316G1	Good Substrings hashing, strings	1700	x964
316E1	Summer Homework brute force, data structures	1500	x1478
316B2	EKG dfs and similar, dp	1600	x1583
316B1	EKG brute force, dfs and similar	1500	x1373
316A2	Special Task math	1400	x2137
315A	Sereja and Bottles brute force	1400	x11112
314A	Sereja and Contest implementation	1600	x2073
313C	Ilya and Matrix constructive algorithms, greedy, implementation, sortings	1400	x5628
312B	Archer math, probabilities	1300	x11506
311A	The Closest Pair constructive algorithms, implementation	1300	x4034
309C	Memory for Arrays binary search, bitmasks, greedy	1900	x1344
305C	Ivan and Powers of Two greedy, implementation	1600	x2445
305B	Continued Fractions brute force, implementation, math	1700	x2092
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x4776
304B	Calendar brute force, implementation	1300	x2977
303B	Rectangle Puzzle II implementation, math	1700	x1346
303A	Lucky Permutation Triple constructive algorithms, implementation, math	1300	x7915
301A	Yaroslav and Sequence constructive algorithms	1800	x3080
300C	Beautiful Numbers brute force, combinatorics	1800	x9466
300B	Coach brute force, dfs and similar, graphs	1500	x6290
298A	Snow Footprints greedy, implementation	1300	x10922
297B	Fish Weight constructive algorithms, greedy	1600	x3480
297A	Parity Game constructive algorithms	1700	x3622
295B	Greg and Graph dp, graphs, shortest paths	1700	x14001
295A	Greg and Array data structures, implementation	1400	x17806
294C	Shaass and Lights combinatorics, number theory	1900	x3807
294B	Shaass and Bookshelf dp, greedy	1700	x4534
293A	Weird Game games, greedy	1500	x2884
292E	Copying Data data structures	1900	x4129
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2428
291D	Parallel Programming *special problem, greedy	1600	x1478
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1679
291B	Command Line Arguments *special problem, implementation, strings	1300	x3032
290D	Orange *special problem, implementation	1400	x1802
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1543
290B	QR code *special problem, implementation	1500	x2438
290A	Mysterious strings *special problem, implementation	1400	x2997
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x17269
288C	Polo the Penguin and XOR operation implementation, math	1700	x2290
288B	Polo the Penguin and Houses combinatorics	1500	x2912
288A	Polo the Penguin and Strings greedy	1300	x6491
287B	Pipeline binary search, math	1700	x9687
286A	Lucky Permutation constructive algorithms, math	1400	x3172
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1546
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6569
283B	Cow Program dfs and similar, dp, graphs	1700	x3663
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6559
282C	XOR and OR constructive algorithms, implementation, math	1500	x9386
282B	Painting Eggs greedy, math	1500	x12941
281B	Nearest Fraction brute force, implementation, two pointers	1700	x3031
280B	Maximum Xor Secondary data structures, implementation, two pointers	1800	x4664
279E	Beautiful Decomposition dp, games, greedy, number theory	1900	x1444
279C	Ladder dp, implementation, two pointers	1700	x8237
279B	Books binary search, brute force, implementation, two pointers	1400	x52607
279A	Point on Spiral brute force, geometry, implementation	1400	x5592
278B	New Problem brute force, strings	1500	x3454
277A	Learning Languages dfs and similar, dsu	1400	x18840
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13769
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x26432
276B	Little Girl and Game games, greedy	1300	x28494
275B	Convex Shape constructive algorithms, implementation	1700	x2826
274B	Zero Tree dfs and similar, dp, greedy, trees	1800	x5004
274A	k-Multiple Free Set binary search, greedy, sortings	1500	x10031
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2625
272C	Dima and Staircase data structures, implementation	1500	x6779
272B	Dima and Sequence implementation, math	1400	x4020
271D	Good Substrings data structures, strings	1800	x11283
271C	Secret constructive algorithms, implementation	1500	x2989
271B	Prime Matrix binary search, brute force, math, number theory	1300	x13033
270B	Multithreading data structures, greedy, implementation	1400	x4131
269B	Greenhouse Effect dp	1700	x6292
269A	Magical Boxes greedy, math	1600	x3522
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13636
264B	Good Sequences dp, number theory	1500	x10155
263D	Cycle in Graph dfs and similar, graphs	1800	x3599
261B	Maxim and Restaurant dp, math, probabilities	1900	x1409
261A	Maxim and Discounts greedy, sortings	1400	x5174
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x2981