Problemset - Codeforces

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Codeforces Round (Div. 2)
5 days

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Problems

#	Name
250B	Restoring IPv6 implementation, strings	1500	x1943
250A	Paper Work greedy	1000	x3966
249E	Endless Matrix math	2600	x286
249D	Donkey and Stars data structures, dp, geometry, math, sortings	2700	x372
248E	Piglet's Birthday dp, math, probabilities	2600	x558
248D	Sweets for Everyone! binary search, greedy, implementation	2300	x473
248C	Robo-Footballer binary search, geometry	2000	x792
248B	Chilly Willy math, number theory	1400	x5180
248A	Cupboards implementation	800	x21286
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x2933
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9157
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2593
246B	Increase and Decrease greedy, math	1300	x10880
246A	Buggy Sorting constructive algorithms, greedy, sortings	900	x9022
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x5895
245G	Suggested Friends brute force, graphs	2200	x421
245F	Log Stream Analysis binary search, brute force, implementation, strings	2000	x858
245E	Mishap in Club greedy, implementation	1400	x3214
245D	Restoring Table constructive algorithms, greedy	1500	x2207
245C	Game with Coins greedy	1700	x1509
245B	Internet Address implementation, strings	1100	x5114
245A	System Administrator implementation	800	x8266
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x4344
244A	Dividing Orange implementation	900	x7719
243E	Matrix data structures	3000	x170
243D	Cubes data structures, dp, geometry, two pointers	2700	x207
243C	Colorado Potato Beetle dfs and similar, implementation	2200	x518
243B	Hydra graphs, sortings	2000	x1172
243A	The Brand New Function bitmasks	1600	x3773
242E	XOR on Segment bitmasks, data structures	2000	x8330
242D	Dispute dfs and similar, graphs, greedy	2100	x1802
242C	King's Path dfs and similar, graphs, hashing, shortest paths	1800	x7957
242B	Big Segment implementation, sortings	1100	x15140
242A	Heads or Tails brute force, implementation	1100	x6221
241G	Challenging Balloons constructive algorithms	1900	x532
241F	Race brute force, implementation	2300	x258
241E	Flights graphs, shortest paths	2600	x984
241D	Numbers	2900	x345
241C	Mirror Box geometry, implementation	2000	x506
241B	Friends binary search, bitmasks, data structures, math	2700	x745
241A	Old Peykan greedy	1300	x2199
240F	TorCoder data structures	2600	x1766
240E	Road Repairs dfs and similar, graphs, greedy	2800	x344
239B	Easy Tape Programming brute force, implementation	1500	x1354
239A	Two Bags of Potatoes greedy, implementation, math	1200	x18034
238E	Meeting Her dp, graphs, shortest paths	2600	x336
238D	Tape Programming data structures, implementation	2900	x243
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1017
238B	Boring Partition constructive algorithms	1800	x1260
238A	Not Wool Sequences constructive algorithms, math	1300	x2003
237E	Build String flows, graphs	2000	x1581
237D	T-decomposition dfs and similar, graphs, greedy, trees	2000	x541
237C	Primes on Interval binary search, number theory, two pointers	1600	x5532
237B	Young Table implementation, sortings	1500	x2217
237A	Free Cash implementation	1000	x25674
236B	Easy Number Challenge implementation, number theory	1300	x13372
236A	Boy or Girl brute force, implementation, strings	800	x191317
235E	Number Challenge combinatorics, dp, implementation, math, number theory	2600	x733
235D	Graph Game graphs	3000	x473
235C	Cyclical Quest data structures, string suffix structures, strings	2700	x1966
235B	Let's Play Osu! dp, math, probabilities	2000	x3303
235A	LCM Challenge number theory	1600	x16708
234H	Merging Two Decks constructive algorithms, greedy	2000	x555
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1447
234F	Fence dp	1800	x1703
234E	Champions' League implementation	1600	x978
234D	Cinema implementation	1600	x1512
234C	Weather dp, implementation	1300	x5305
234B	Reading sortings	1000	x6955
234A	Lefthanders and Righthanders implementation	1200	x4373
233B	Non-square Equation binary search, brute force, math	1400	x7285
233A	Perfect Permutation implementation, math	800	x40191
232E	Quick Tortoise bitmasks, divide and conquer, dp	3000	x670
232D	Fence binary search, data structures, string suffix structures	2900	x438
232C	Doe Graphs constructive algorithms, divide and conquer, dp, graphs, shortest paths	2600	x278
232B	Table bitmasks, combinatorics, dp, math	1900	x1384
232A	Cycles binary search, constructive algorithms, graphs, greedy	1600	x2421
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1525
231D	Magic Box brute force, geometry	1600	x4022
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8256
231B	Magic, Wizardry and Wonders constructive algorithms, greedy	1500	x3545
231A	Team brute force, greedy	800	x296405
230B	T-primes binary search, implementation, math, number theory	1300	x69282
230A	Dragons greedy, sortings	1000	x73755
229E	Gifts combinatorics, dp, math, probabilities	2600	x447
229D	Towers dp, greedy, two pointers	2100	x2079
229C	Triangles combinatorics, graphs, math	1900	x1583
229B	Planets binary search, data structures, graphs, shortest paths	1700	x4432
229A	Shifts brute force, two pointers	1500	x3433
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x2300
228D	Zigzag data structures	2100	x373
228C	Fractal Detector dp, hashing	2000	x440
228B	Two Tables brute force, implementation	1400	x3429
228A	Is your horseshoe on the other hoof? implementation	800	x101050
227B	Effective Approach implementation	1100	x26204
227A	Where do I Turn? geometry	1300	x4024
226E	Noble Knight's Path data structures, trees	2900	x430
226D	The table constructive algorithms, greedy	2100	x944
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x840
226B	Naughty Stone Piles greedy	1900	x1533