Problemset - Codeforces

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Codeforces Round 957 (Div. 3)
3 days
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Problems

#	Name
297C	Splitting the Uniqueness constructive algorithms	2400	x934
297B	Fish Weight constructive algorithms, greedy	1600	x3459
297A	Parity Game constructive algorithms	1700	x3599
296B	Yaroslav and Two Strings combinatorics, dp	2000	x2148
296A	Yaroslav and Permutations greedy, math	1100	x22431
295E	Yaroslav and Points data structures	2500	x657
295D	Greg and Caves combinatorics, dp	2400	x640
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1669
295B	Greg and Graph dp, graphs, shortest paths	1700	x13491
295A	Greg and Array data structures, implementation	1400	x16600
294E	Shaass the Great dp, trees	2300	x918
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x308
294C	Shaass and Lights combinatorics, number theory	1900	x3741
294B	Shaass and Bookshelf dp, greedy	1700	x4422
294A	Shaass and Oskols implementation, math	800	x22682
293E	Close Vertices data structures, divide and conquer, trees	2700	x1352
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x236
293C	Cube Problem brute force, math, number theory	2400	x563
293B	Distinct Paths brute force, combinatorics	2700	x830
293A	Weird Game games, greedy	1500	x2837
292E	Copying Data data structures	1900	x4002
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2368
292C	Beautiful IP Addresses brute force	2000	x1020
292B	Network Topology graphs, implementation	1200	x7968
292A	SMSC implementation	1100	x2668
291E	Tree-String Problem *special problem, dfs and similar, hashing, strings	2000	x1286
291D	Parallel Programming *special problem, greedy	1600	x1470
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1669
291B	Command Line Arguments *special problem, implementation, strings	1300	x3019
291A	Spyke Talks *special problem, implementation, sortings	800	x6023
290F	Greedy Petya *special problem, dfs and similar, graphs, greedy	2800	x130
290E	HQ *special problem, constructive algorithms	2500	x198
290D	Orange *special problem, implementation	1400	x1788
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1527
290B	QR code *special problem, implementation	1500	x2415
290A	Mysterious strings *special problem, implementation	1400	x2971
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x16982
289A	Polo the Penguin and Segments brute force, implementation	1100	x8906
288E	Polo the Penguin and Lucky Numbers dp, implementation, math	2800	x287
288D	Polo the Penguin and Trees combinatorics, dfs and similar, trees	2400	x679
288C	Polo the Penguin and XOR operation implementation, math	1700	x2260
288B	Polo the Penguin and Houses combinatorics	1500	x2884
288A	Polo the Penguin and Strings greedy	1300	x6452
287B	Pipeline binary search, math	1700	x9222
287A	IQ Test brute force, implementation	1100	x19190
286E	Ladies' Shop constructive algorithms, fft, math	2800	x824
286D	Tourists data structures, sortings	2600	x373
286C	Main Sequence greedy, implementation	2100	x1372
286B	Shifting implementation	2200	x1109
286A	Lucky Permutation constructive algorithms, math	1400	x3134
285E	Positions in Permutations combinatorics, dp, math	2600	x963
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1512
285C	Building Permutation greedy, implementation, sortings	1200	x22763
285B	Find Marble implementation	1200	x14855
285A	Slightly Decreasing Permutations greedy, implementation	1100	x13203
284B	Cows and Poker Game brute force, implementation	1000	x6711
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6465
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x726
283D	Cows and Cool Sequences dp, math, number theory	2400	x528
283C	Coin Troubles dp	2100	x1286
283B	Cow Program dfs and similar, dp, graphs	1700	x3622
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6513
282E	Sausage Maximization bitmasks, data structures, trees	2200	x3499
282D	Yet Another Number Game dp, games	2100	x1394
282C	XOR and OR constructive algorithms, implementation, math	1500	x9205
282B	Painting Eggs greedy, math	1500	x12714
282A	Bit++ implementation	800	x245047
281B	Nearest Fraction brute force, implementation, two pointers	1700	x2947
281A	Word Capitalization implementation, strings	800	x201349
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x203
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x1231
280C	Game on Tree implementation, math, probabilities, trees	2200	x3625
280B	Maximum Xor Secondary data structures, implementation, two pointers	1800	x4471
280A	Rectangle Puzzle geometry	2000	x1452
279E	Beautiful Decomposition dp, games, greedy, number theory	1900	x1419
279D	The Minimum Number of Variables bitmasks, dp	2200	x716
279C	Ladder dp, implementation, two pointers	1700	x8129
279B	Books binary search, brute force, implementation, two pointers	1400	x49747
279A	Point on Spiral brute force, geometry, implementation	1400	x5543
278B	New Problem brute force, strings	1500	x3427
278A	Circle Line implementation	800	x11540
277E	Binary Tree on Plane flows, trees	2400	x1248
277D	Google Code Jam dp, probabilities	2800	x331
277C	Game games, implementation	2400	x448
277B	Set of Points constructive algorithms, geometry	2300	x787
277A	Learning Languages dfs and similar, dsu	1400	x18357
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1569
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13346
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x24972
276B	Little Girl and Game games, greedy	1300	x27775
276A	Lunch Rush implementation	900	x27067
275B	Convex Shape constructive algorithms, implementation	1700	x2795
275A	Lights Out implementation	900	x29191
274E	Mirror Room data structures, implementation	3000	x306
274D	Lovely Matrix dfs and similar, graphs, greedy, sortings	2200	x1015
274C	The Last Hole! brute force, geometry	2600	x348
274B	Zero Tree dfs and similar, dp, greedy, trees	1800	x4932
274A	k-Multiple Free Set binary search, greedy, sortings	1500	x9932
273E	Dima and Game dp, games	2600	x363
273D	Dima and Figure dp	2400	x388