Problemset - Codeforces

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Codeforces Round (Div. 2)
6 days

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Problems

#	Name
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x6163
245G	Suggested Friends brute force, graphs	2200	x425
245F	Log Stream Analysis binary search, brute force, implementation, strings	2000	x871
245E	Mishap in Club greedy, implementation	1400	x3247
245D	Restoring Table constructive algorithms, greedy	1500	x2251
245C	Game with Coins greedy	1700	x1524
245B	Internet Address implementation, strings	1100	x5151
245A	System Administrator implementation	800	x8319
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x4410
244A	Dividing Orange implementation	900	x7793
243E	Matrix data structures	3000	x172
243D	Cubes data structures, dp, geometry, two pointers	2700	x211
243C	Colorado Potato Beetle dfs and similar, implementation	2200	x523
243B	Hydra graphs, sortings	2000	x1187
243A	The Brand New Function bitmasks	1600	x3840
242E	XOR on Segment bitmasks, data structures	2000	x8638
242D	Dispute dfs and similar, graphs, greedy	2100	x1849
242C	King's Path dfs and similar, graphs, hashing, shortest paths	1800	x8224
242B	Big Segment implementation, sortings	1100	x15370
242A	Heads or Tails brute force, implementation	1100	x6294
241G	Challenging Balloons constructive algorithms	1900	x541
241F	Race brute force, implementation	2300	x261
241E	Flights graphs, shortest paths	2600	x1007
241D	Numbers	2900	x348
241C	Mirror Box geometry, implementation	2000	x509
241B	Friends binary search, bitmasks, data structures, math	2700	x758
241A	Old Peykan greedy	1300	x2215
240F	TorCoder data structures	2600	x1817
240E	Road Repairs dfs and similar, graphs, greedy	2800	x354
239B	Easy Tape Programming brute force, implementation	1500	x1364
239A	Two Bags of Potatoes greedy, implementation, math	1200	x18367
238E	Meeting Her dp, graphs, shortest paths	2600	x348
238D	Tape Programming data structures, implementation	2900	x246
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1091
238B	Boring Partition constructive algorithms	1800	x1278
238A	Not Wool Sequences constructive algorithms, math	1300	x2020
237E	Build String flows, graphs	2000	x1610
237D	T-decomposition dfs and similar, graphs, greedy, trees	2000	x549
237C	Primes on Interval binary search, number theory, two pointers	1600	x5618
237B	Young Table implementation, sortings	1500	x2223
237A	Free Cash implementation	1000	x26161
236B	Easy Number Challenge implementation, number theory	1300	x13686
236A	Boy or Girl brute force, implementation, strings	800	x198506
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x761
235D	Graph Game graphs	3000	x478
235C	Cyclical Quest data structures, string suffix structures, strings	2700	x2044
235B	Let's Play Osu! dp, math, probabilities	2000	x3389
235A	LCM Challenge number theory	1600	x17166
234H	Merging Two Decks constructive algorithms, greedy	2000	x558
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1463
234F	Fence dp	1800	x1720
234E	Champions' League implementation	1600	x991
234D	Cinema implementation	1600	x1517
234C	Weather dp, implementation	1300	x5382
234B	Reading sortings	1000	x7034
234A	Lefthanders and Righthanders implementation	1200	x4395
233B	Non-square Equation binary search, brute force, math	1400	x7361
233A	Perfect Permutation implementation, math	800	x41137
232E	Quick Tortoise bitmasks, divide and conquer, dp	3000	x682
232D	Fence binary search, data structures, string suffix structures	2900	x444
232C	Doe Graphs constructive algorithms, divide and conquer, dp, graphs, shortest paths	2600	x283
232B	Table bitmasks, combinatorics, dp, math	1900	x1393
232A	Cycles binary search, constructive algorithms, graphs, greedy	1600	x2474
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1628
231D	Magic Box brute force, geometry	1600	x4047
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8388
231B	Magic, Wizardry and Wonders constructive algorithms, greedy	1500	x3571
231A	Team brute force, greedy	800	x306808
230B	T-primes binary search, implementation, math, number theory	1300	x71817
230A	Dragons greedy, sortings	1000	x75975
229E	Gifts combinatorics, dp, math, probabilities	2600	x455
229D	Towers dp, greedy, two pointers	2100	x2134
229C	Triangles combinatorics, graphs, math	1900	x1601
229B	Planets binary search, data structures, graphs, shortest paths	1700	x4518
229A	Shifts brute force, two pointers	1500	x3464
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x2373
228D	Zigzag data structures	2100	x377
228C	Fractal Detector dp, hashing	2000	x446
228B	Two Tables brute force, implementation	1400	x3442
228A	Is your horseshoe on the other hoof? implementation	800	x104535
227B	Effective Approach implementation	1100	x27000
227A	Where do I Turn? geometry	1300	x4073
226E	Noble Knight's Path data structures, trees	2900	x450
226D	The table constructive algorithms, greedy	2100	x953
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x850
226B	Naughty Stone Piles greedy	1900	x1538
226A	Flying Saucer Segments math	1400	x3924
225E	Unsolvable math, number theory	2100	x785
225D	Snake bitmasks, dfs and similar, graphs, implementation	2200	x917
225C	Barcode dp, matrices	1700	x8856
225B	Well-known Numbers binary search, greedy, number theory	1600	x3119
225A	Dice Tower constructive algorithms, greedy	1100	x11288
224B	Array bitmasks, implementation, two pointers	1500	x7211
224A	Parallelepiped brute force, geometry, math	1100	x25814
223E	Planar Graph flows, geometry, graphs	3000	x191
223D	Spider geometry, graphs	3000	x70
223C	Partial Sums combinatorics, math, number theory	1900	x1516
223B	Two Strings data structures, dp, strings	1900	x1737
223A	Bracket Sequence data structures, expression parsing, implementation	1700	x2491
222E	Decoding Genome dp, matrices	1900	x2604