Problemset - Codeforces

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

#	Name
250C	Movie Critics greedy	1600	x2033
250B	Restoring IPv6 implementation, strings	1500	x2011
249E	Endless Matrix math	2600	x329
249D	Donkey and Stars data structures, dp, geometry, math, sortings	2700	x471
248E	Piglet's Birthday dp, math, probabilities	2600	x594
248D	Sweets for Everyone! binary search, greedy, implementation	2300	x503
248C	Robo-Footballer binary search, geometry	2000	x857
248B	Chilly Willy math, number theory	1400	x5401
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x3489
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9556
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2659
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x7031
245G	Suggested Friends brute force, graphs	2200	x464
245F	Log Stream Analysis binary search, brute force, implementation, strings	2000	x898
245E	Mishap in Club greedy, implementation	1400	x3312
245D	Restoring Table constructive algorithms, greedy	1500	x2354
245C	Game with Coins greedy	1700	x1557
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x4546
243E	Matrix data structures	3000	x192
243D	Cubes data structures, dp, geometry, two pointers	2700	x222
243C	Colorado Potato Beetle dfs and similar, implementation	2200	x531
243B	Hydra graphs, sortings	2000	x1248
243A	The Brand New Function bitmasks	1600	x3989
242E	XOR on Segment bitmasks, data structures	2000	x9751
242D	Dispute dfs and similar, graphs, greedy	2100	x1891
242C	King's Path dfs and similar, graphs, hashing, shortest paths	1800	x8932
241G	Challenging Balloons constructive algorithms	1900	x551
241F	Race brute force, implementation	2300	x266
241E	Flights graphs, shortest paths	2600	x1128
241D	Numbers	2900	x383
241C	Mirror Box geometry, implementation	2000	x513
241B	Friends binary search, bitmasks, data structures, math	2700	x867
240F	TorCoder data structures	2600	x2002
240E	Road Repairs dfs and similar, graphs, greedy	2800	x357
239B	Easy Tape Programming brute force, implementation	1500	x1378
238E	Meeting Her dp, graphs, shortest paths	2600	x401
238D	Tape Programming data structures, implementation	2900	x253
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1256
238B	Boring Partition constructive algorithms	1800	x1341
237E	Build String flows, graphs	2000	x1775
237D	T-decomposition dfs and similar, graphs, greedy, trees	2000	x573
237C	Primes on Interval binary search, number theory, two pointers	1600	x5920
237B	Young Table implementation, sortings	1500	x2246
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x787
235D	Graph Game graphs	3000	x509
235C	Cyclical Quest data structures, string suffix structures, strings	2700	x2172
235B	Let's Play Osu! dp, math, probabilities	2000	x3636
235A	LCM Challenge number theory	1600	x18214
234H	Merging Two Decks constructive algorithms, greedy	2000	x574
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1496
234F	Fence dp	1800	x1786
234E	Champions' League implementation	1600	x1004
234D	Cinema implementation	1600	x1548
233B	Non-square Equation binary search, brute force, math	1400	x7605
232E	Quick Tortoise bitmasks, divide and conquer, dp	3000	x706
232D	Fence binary search, data structures, string suffix structures	2900	x488
232C	Doe Graphs constructive algorithms, divide and conquer, dp, graphs, shortest paths	2600	x292
232B	Table bitmasks, combinatorics, dp, math	1900	x1490
232A	Cycles binary search, constructive algorithms, graphs, greedy	1600	x2599
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1933
231D	Magic Box brute force, geometry	1600	x4148
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8738
231B	Magic, Wizardry and Wonders constructive algorithms, greedy	1500	x3641
229E	Gifts combinatorics, dp, math, probabilities	2600	x471
229D	Towers dp, greedy, two pointers	2100	x2297
229C	Triangles combinatorics, graphs, math	1900	x1651
229B	Planets binary search, data structures, graphs, shortest paths	1700	x4800
229A	Shifts brute force, two pointers	1500	x3553
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x2538
228D	Zigzag data structures	2100	x387
228C	Fractal Detector dp, hashing	2000	x470
228B	Two Tables brute force, implementation	1400	x3483
226E	Noble Knight's Path data structures, trees	2900	x473
226D	The table constructive algorithms, greedy	2100	x979
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x920
226B	Naughty Stone Piles greedy	1900	x1570
226A	Flying Saucer Segments math	1400	x4033
225E	Unsolvable math, number theory	2100	x821
225D	Snake bitmasks, dfs and similar, graphs, implementation	2200	x953
225C	Barcode dp, matrices	1700	x9322
225B	Well-known Numbers binary search, greedy, number theory	1600	x3187
224B	Array bitmasks, implementation, two pointers	1500	x7414
223E	Planar Graph flows, geometry, graphs	3000	x193
223D	Spider geometry, graphs	3000	x71
223C	Partial Sums combinatorics, math, number theory	1900	x1599
223B	Two Strings data structures, dp, strings	1900	x1827
223A	Bracket Sequence data structures, expression parsing, implementation	1700	x2553
222E	Decoding Genome dp, matrices	1900	x2901
222D	Olympiad binary search, greedy, sortings, two pointers	1900	x2184
222C	Reducing Fractions implementation, math, number theory, sortings	1800	x2361
220E	Little Elephant and Inversions data structures, two pointers	2400	x1439
220D	Little Elephant and Triangle geometry, math	2500	x287
220C	Little Elephant and Shifts data structures	2100	x952
220B	Little Elephant and Array constructive algorithms, data structures	1800	x10626
219E	Parking Lot data structures	2200	x622
219D	Choosing Capital for Treeland dfs and similar, dp, graphs, trees	1700	x9816
219C	Color Stripe brute force, dp, greedy	1600	x6726
219B	Special Offer! Super Price 999 Bourles! implementation	1400	x5871
217E	Alien DNA data structures, dsu, trees	2800	x330
217D	Bitonix' Patrol bitmasks, brute force, combinatorics, dfs and similar, math	2900	x252