Problemset - Codeforces

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Codeforces Round (Div. 2)
7 days

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Problems

#	Name
260B	Ancient Prophesy brute force, implementation, strings	1600	x3805
260A	Adding Digits implementation, math	1400	x14647
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1446
257D	Sum greedy, math	1900	x1595
257C	View Angle brute force, geometry, math	1800	x4301
257B	Playing Cubes games, greedy, implementation	1300	x7052
255D	Mr. Bender and Square binary search, implementation, math	1800	x1981
255C	Almost Arithmetical Progression brute force, dp	1500	x4712
254C	Anagram greedy, strings	1800	x1497
254B	Jury Size brute force, implementation	1500	x2151
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2602
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10704
252B	Unsorting Array brute force, sortings	1800	x1712
251B	Playing with Permutations implementation, math	1800	x1270
251A	Points on Line binary search, combinatorics, two pointers	1300	x17626
250D	Building Bridge geometry, ternary search, two pointers	1900	x893
250C	Movie Critics greedy	1600	x1935
250B	Restoring IPv6 implementation, strings	1500	x1980
248B	Chilly Willy math, number theory	1400	x5309
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9430
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2630
246B	Increase and Decrease greedy, math	1300	x11286
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x6634
245E	Mishap in Club greedy, implementation	1400	x3278
245D	Restoring Table constructive algorithms, greedy	1500	x2304
245C	Game with Coins greedy	1700	x1548
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x4474
243A	The Brand New Function bitmasks	1600	x3916
242C	King's Path dfs and similar, graphs, hashing, shortest paths	1800	x8617
241G	Challenging Balloons constructive algorithms	1900	x548
241A	Old Peykan greedy	1300	x2231
239B	Easy Tape Programming brute force, implementation	1500	x1371
238B	Boring Partition constructive algorithms	1800	x1290
238A	Not Wool Sequences constructive algorithms, math	1300	x2036
237C	Primes on Interval binary search, number theory, two pointers	1600	x5749
237B	Young Table implementation, sortings	1500	x2235
236B	Easy Number Challenge implementation, number theory	1300	x14196
235A	LCM Challenge number theory	1600	x17717
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1478
234F	Fence dp	1800	x1737
234E	Champions' League implementation	1600	x1001
234D	Cinema implementation	1600	x1533
234C	Weather dp, implementation	1300	x5531
233B	Non-square Equation binary search, brute force, math	1400	x7480
232B	Table bitmasks, combinatorics, dp, math	1900	x1462
232A	Cycles binary search, constructive algorithms, graphs, greedy	1600	x2527
231D	Magic Box brute force, geometry	1600	x4085
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8613
231B	Magic, Wizardry and Wonders constructive algorithms, greedy	1500	x3606
230B	T-primes binary search, implementation, math, number theory	1300	x74992
229C	Triangles combinatorics, graphs, math	1900	x1618
229B	Planets binary search, data structures, graphs, shortest paths	1700	x4656
229A	Shifts brute force, two pointers	1500	x3508
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x2431
228B	Two Tables brute force, implementation	1400	x3466
227A	Where do I Turn? geometry	1300	x4182
226B	Naughty Stone Piles greedy	1900	x1559
226A	Flying Saucer Segments math	1400	x3986
225C	Barcode dp, matrices	1700	x9106
225B	Well-known Numbers binary search, greedy, number theory	1600	x3151
224B	Array bitmasks, implementation, two pointers	1500	x7316
223C	Partial Sums combinatorics, math, number theory	1900	x1558
223B	Two Strings data structures, dp, strings	1900	x1788
223A	Bracket Sequence data structures, expression parsing, implementation	1700	x2529
222E	Decoding Genome dp, matrices	1900	x2764
222D	Olympiad binary search, greedy, sortings, two pointers	1900	x2163
222C	Reducing Fractions implementation, math, number theory, sortings	1800	x2204
222B	Cosmic Tables data structures, implementation	1300	x6101
221B	Little Elephant and Numbers implementation	1300	x4565
220B	Little Elephant and Array constructive algorithms, data structures	1800	x10164
220A	Little Elephant and Problem implementation, sortings	1300	x11981
219D	Choosing Capital for Treeland dfs and similar, dp, graphs, trees	1700	x9374
219C	Color Stripe brute force, dp, greedy	1600	x6653
219B	Special Offer! Super Price 999 Bourles! implementation	1400	x5809
216D	Spider's Web binary search, sortings, two pointers	1700	x1354
216C	Hiring Staff greedy	1800	x1844
216B	Forming Teams dfs and similar, implementation	1700	x6351
215D	Hot Days greedy	1900	x1597
215B	Olympic Medal greedy, math	1300	x5567
214B	Hometask brute force, constructive algorithms, greedy, math	1600	x4962
213B	Numbers combinatorics, dp	1900	x1771
213A	Game dfs and similar, greedy	1700	x1723
212E	IT Restaurants dfs and similar, dp, trees	1500	x1738
209A	Multicolored Marbles dp, math	1600	x2343
208C	Police Station dp, graphs, shortest paths	1900	x1848
208B	Solitaire dfs and similar, dp	1900	x1357
207D9	The Beaver's Problem - 3	1800	x88
207D7	The Beaver's Problem - 3	1600	x101
207D5	The Beaver's Problem - 3	1600	x142
207D1	The Beaver's Problem - 3	1800	x117
207B3	Military Trainings	1700	x163
207B2	Military Trainings	1900	x181
207B1	Military Trainings	1600	x266
207A2	Beaver's Calculator 1.0 greedy	1800	x236
207A1	Beaver's Calculator 1.0 greedy	1600	x286
205B	Little Elephant and Sorting brute force, greedy	1400	x6031
204B	Little Elephant and Cards binary search, data structures	1500	x5198
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5696
203D	Hit Ball geometry, implementation, math	1700	x1418
203C	Photographer greedy, sortings	1400	x5678