Problemset - Codeforces

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Codeforces Round 957 (Div. 3)
3 days
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Problems

#	Name
316A2	Special Task math	1400	x2114
315A	Sereja and Bottles brute force	1400	x10867
314E	Sereja and Squares dp	2900	x366
314D	Sereja and Straight Lines binary search, data structures, geometry, sortings, two pointers	2500	x518
314C	Sereja and Subsequences data structures, dp	2000	x1813
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1457
314A	Sereja and Contest implementation	1600	x2062
313E	Ilya and Two Numbers constructive algorithms, data structures, dsu, greedy	2300	x542
313D	Ilya and Roads dp	2100	x1444
313C	Ilya and Matrix constructive algorithms, greedy, implementation, sortings	1400	x5570
311E	Biologist flows	2300	x1080
311D	Interval Cubing data structures, math	2600	x660
311C	Fetch the Treasure brute force, data structures, graphs, shortest paths	2500	x477
311B	Cats Transport data structures, dp	2400	x3308
309E	Sheep binary search, greedy	2900	x220
309D	Tennis Rackets brute force, geometry	2700	x173
309C	Memory for Arrays binary search, bitmasks, greedy	1900	x1297
309B	Context Advertising dp, two pointers	2100	x564
309A	Morning run binary search, math, two pointers	2000	x461
306D	Polygon constructive algorithms, geometry	2300	x266
306C	White, Black and White Again combinatorics, number theory	2100	x470
306B	Optimizer data structures, greedy, sortings	2100	x439
305E	Playing with String games	2300	x609
305D	Olya and Graph combinatorics, math	2200	x456
305C	Ivan and Powers of Two greedy, implementation	1600	x2431
305B	Continued Fractions brute force, implementation, math	1700	x2045
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x4677
303E	Random Ranking dp, math, probabilities	3000	x315
303D	Rotatable Number math, number theory	2600	x292
303C	Minimum Modular brute force, graphs, math, number theory	2400	x866
303B	Rectangle Puzzle II implementation, math	1700	x1335
301E	Yaroslav and Arrangements dp	2800	x364
301D	Yaroslav and Divisors data structures	2200	x2280
301C	Yaroslav and Algorithm constructive algorithms	2500	x461
301B	Yaroslav and Time binary search, graphs, shortest paths	2100	x2366
301A	Yaroslav and Sequence constructive algorithms	1800	x3054
300E	Empire Strikes Back binary search, math, number theory	2300	x1029
300D	Painting Square dp, fft	2300	x742
300C	Beautiful Numbers brute force, combinatorics	1800	x9073
300B	Coach brute force, dfs and similar, graphs	1500	x6184
297E	Mystic Carvings data structures	3000	x367
297D	Color the Carpet constructive algorithms	2500	x499
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
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	x16601
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	x3742
294B	Shaass and Bookshelf dp, greedy	1700	x4422
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	x4004
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2368
292C	Beautiful IP Addresses brute force	2000	x1020
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
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	x16983
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
287B	Pipeline binary search, math	1700	x9224
286E	Ladies' Shop constructive algorithms, fft, math	2800	x824
286D	Tourists data structures, sortings	2600	x373
286C	Main Sequence greedy, implementation	2100	x1384
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
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6466
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
281B	Nearest Fraction brute force, implementation, two pointers	1700	x2947
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