Problemset - Codeforces

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IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)
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Problems

#	Name
316F2	Suns and Rays	2300	x167
316F1	Suns and Rays dfs and similar, implementation	2200	x181
316E3	Summer Homework data structures, math	2300	x534
316E2	Summer Homework data structures, math	2300	x401
316E1	Summer Homework brute force, data structures	1500	x1489
316D3	PE Lesson dp, math	2400	x611
316D2	PE Lesson dp	2300	x464
316D1	PE Lesson brute force, dp	2300	x535
316C2	Tidying Up flows, graph matchings	2300	x637
316C1	Tidying Up flows	2200	x561
316B2	EKG dfs and similar, dp	1600	x1602
316B1	EKG brute force, dfs and similar	1500	x1390
316A2	Special Task math	1400	x2162
315A	Sereja and Bottles brute force	1400	x11323
314E	Sereja and Squares dp	2900	x373
314D	Sereja and Straight Lines binary search, data structures, geometry, sortings, two pointers	2500	x533
314C	Sereja and Subsequences data structures, dp	2000	x1846
314B	Sereja and Periods binary search, dfs and similar, strings	2000	x1530
314A	Sereja and Contest implementation	1600	x2087
313E	Ilya and Two Numbers constructive algorithms, data structures, dsu, greedy	2300	x558
313D	Ilya and Roads dp	2100	x1496
313C	Ilya and Matrix constructive algorithms, greedy, implementation, sortings	1400	x5681
311E	Biologist flows	2300	x1257
311D	Interval Cubing data structures, math	2600	x677
311C	Fetch the Treasure brute force, data structures, graphs, shortest paths	2500	x491
311B	Cats Transport data structures, dp	2400	x3583
309E	Sheep binary search, greedy	2900	x233
309D	Tennis Rackets brute force, geometry	2700	x176
309C	Memory for Arrays binary search, bitmasks, greedy	1900	x1377
309B	Context Advertising dp, two pointers	2100	x732
309A	Morning run binary search, math, two pointers	2000	x493
306D	Polygon constructive algorithms, geometry	2300	x296
306C	White, Black and White Again combinatorics, number theory	2100	x501
306B	Optimizer data structures, greedy, sortings	2100	x453
305E	Playing with String games	2300	x650
305D	Olya and Graph combinatorics, math	2200	x516
305C	Ivan and Powers of Two greedy, implementation	1600	x2480
305B	Continued Fractions brute force, implementation, math	1700	x2161
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x4879
303E	Random Ranking dp, math, probabilities	3000	x326
303D	Rotatable Number math, number theory	2600	x302
303C	Minimum Modular brute force, graphs, math, number theory	2400	x897
303B	Rectangle Puzzle II implementation, math	1700	x1348
301E	Yaroslav and Arrangements dp	2800	x366
301D	Yaroslav and Divisors data structures	2200	x2492
301C	Yaroslav and Algorithm constructive algorithms	2500	x475
301B	Yaroslav and Time binary search, graphs, shortest paths	2100	x2417
301A	Yaroslav and Sequence constructive algorithms	1800	x3100
300E	Empire Strikes Back binary search, math, number theory	2300	x1050
300D	Painting Square dp, fft	2300	x760
300C	Beautiful Numbers brute force, combinatorics	1800	x9859
300B	Coach brute force, dfs and similar, graphs	1500	x6429
297E	Mystic Carvings data structures	3000	x383
297D	Color the Carpet constructive algorithms	2500	x591
297C	Splitting the Uniqueness constructive algorithms	2400	x970
297B	Fish Weight constructive algorithms, greedy	1600	x3553
297A	Parity Game constructive algorithms	1700	x3668
296B	Yaroslav and Two Strings combinatorics, dp	2000	x2332
295E	Yaroslav and Points data structures	2500	x700
295D	Greg and Caves combinatorics, dp	2400	x668
295C	Greg and Friends combinatorics, dp, graphs, shortest paths	2100	x1772
295B	Greg and Graph dp, graphs, shortest paths	1700	x14754
295A	Greg and Array data structures, implementation	1400	x18931
294E	Shaass the Great dp, trees	2300	x979
294D	Shaass and Painter Robot brute force, implementation, number theory	2500	x364
294C	Shaass and Lights combinatorics, number theory	1900	x3873
294B	Shaass and Bookshelf dp, greedy	1700	x4599
293E	Close Vertices data structures, divide and conquer, trees	2700	x1483
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x240
293C	Cube Problem brute force, math, number theory	2400	x580
293B	Distinct Paths brute force, combinatorics	2700	x883
293A	Weird Game games, greedy	1500	x2936
292E	Copying Data data structures	1900	x4256
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2466
292C	Beautiful IP Addresses brute force	2000	x1176
291E	Tree-String Problem *special problem, dfs and similar, hashing, strings	2000	x1329
291D	Parallel Programming *special problem, greedy	1600	x1486
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1688
290F	Greedy Petya *special problem, dfs and similar, graphs, greedy	2800	x134
290E	HQ *special problem, constructive algorithms	2500	x206
290D	Orange *special problem, implementation	1400	x1818
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1555
290B	QR code *special problem, implementation	1500	x2458
290A	Mysterious strings *special problem, implementation	1400	x3016
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x17630
288E	Polo the Penguin and Lucky Numbers dp, implementation, math	2800	x301
288D	Polo the Penguin and Trees combinatorics, dfs and similar, trees	2400	x760
288C	Polo the Penguin and XOR operation implementation, math	1700	x2347
288B	Polo the Penguin and Houses combinatorics	1500	x2958
287B	Pipeline binary search, math	1700	x10150
286E	Ladies' Shop constructive algorithms, fft, math	2800	x835
286D	Tourists data structures, sortings	2600	x379
286C	Main Sequence greedy, implementation	2100	x1535
286B	Shifting implementation	2200	x1127
286A	Lucky Permutation constructive algorithms, math	1400	x3204
285E	Positions in Permutations combinatorics, dp, math	2600	x1015
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1565
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6653
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x781
283D	Cows and Cool Sequences dp, math, number theory	2400	x555