Problemset - Codeforces

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Educational Codeforces Round 169 (Rated for Div. 2)
16:31:00
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Problems

#	Name
282C	XOR and OR constructive algorithms, implementation, math	1500	x9315
282B	Painting Eggs greedy, math	1500	x12803
281B	Nearest Fraction brute force, implementation, two pointers	1700	x2971
279C	Ladder dp, implementation, two pointers	1700	x8182
279B	Books binary search, brute force, implementation, two pointers	1400	x50840
279A	Point on Spiral brute force, geometry, implementation	1400	x5560
278B	New Problem brute force, strings	1500	x3441
277A	Learning Languages dfs and similar, dsu	1400	x18585
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13530
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x25511
276B	Little Girl and Game games, greedy	1300	x28083
275B	Convex Shape constructive algorithms, implementation	1700	x2811
274A	k-Multiple Free Set binary search, greedy, sortings	1500	x9966
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2609
272C	Dima and Staircase data structures, implementation	1500	x6752
272B	Dima and Sequence implementation, math	1400	x3991
271C	Secret constructive algorithms, implementation	1500	x2930
271B	Prime Matrix binary search, brute force, math, number theory	1300	x12775
270B	Multithreading data structures, greedy, implementation	1400	x4110
269B	Greenhouse Effect dp	1700	x6242
269A	Magical Boxes greedy, math	1600	x3506
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13559
264B	Good Sequences dp, number theory	1500	x9970
261A	Maxim and Discounts greedy, sortings	1400	x5138
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x2948
260B	Ancient Prophesy brute force, implementation, strings	1600	x3787
260A	Adding Digits implementation, math	1400	x14446
257B	Playing Cubes games, greedy, implementation	1300	x7001
255C	Almost Arithmetical Progression brute force, dp	1500	x4676
254B	Jury Size brute force, implementation	1500	x2137
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2569
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10539
251A	Points on Line binary search, combinatorics, two pointers	1300	x17198
250C	Movie Critics greedy	1600	x1902
250B	Restoring IPv6 implementation, strings	1500	x1970
248B	Chilly Willy math, number theory	1400	x5274
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9343
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2613
246B	Increase and Decrease greedy, math	1300	x11163
245E	Mishap in Club greedy, implementation	1400	x3258
245D	Restoring Table constructive algorithms, greedy	1500	x2276
245C	Game with Coins greedy	1700	x1538
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x4440
243A	The Brand New Function bitmasks	1600	x3870
241A	Old Peykan greedy	1300	x2218
239B	Easy Tape Programming brute force, implementation	1500	x1366
238A	Not Wool Sequences constructive algorithms, math	1300	x2023
237C	Primes on Interval binary search, number theory, two pointers	1600	x5665
237B	Young Table implementation, sortings	1500	x2226
236B	Easy Number Challenge implementation, number theory	1300	x13933
235A	LCM Challenge number theory	1600	x17421
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1466
234E	Champions' League implementation	1600	x995
234D	Cinema implementation	1600	x1525
234C	Weather dp, implementation	1300	x5422
233B	Non-square Equation binary search, brute force, math	1400	x7409
232A	Cycles binary search, constructive algorithms, graphs, greedy	1600	x2492
231D	Magic Box brute force, geometry	1600	x4059
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8529
231B	Magic, Wizardry and Wonders constructive algorithms, greedy	1500	x3587
230B	T-primes binary search, implementation, math, number theory	1300	x73240
229B	Planets binary search, data structures, graphs, shortest paths	1700	x4594
229A	Shifts brute force, two pointers	1500	x3483
228B	Two Tables brute force, implementation	1400	x3449
227A	Where do I Turn? geometry	1300	x4108
226A	Flying Saucer Segments math	1400	x3949
225C	Barcode dp, matrices	1700	x8999
225B	Well-known Numbers binary search, greedy, number theory	1600	x3134
224B	Array bitmasks, implementation, two pointers	1500	x7260
223A	Bracket Sequence data structures, expression parsing, implementation	1700	x2508
222B	Cosmic Tables data structures, implementation	1300	x6049
221B	Little Elephant and Numbers implementation	1300	x4539
220A	Little Elephant and Problem implementation, sortings	1300	x11915
219D	Choosing Capital for Treeland dfs and similar, dp, graphs, trees	1700	x9157
219C	Color Stripe brute force, dp, greedy	1600	x6617
219B	Special Offer! Super Price 999 Bourles! implementation	1400	x5779
216D	Spider's Web binary search, sortings, two pointers	1700	x1344
216B	Forming Teams dfs and similar, implementation	1700	x6265
215B	Olympic Medal greedy, math	1300	x5491
214B	Hometask brute force, constructive algorithms, greedy, math	1600	x4940
213A	Game dfs and similar, greedy	1700	x1710
212E	IT Restaurants dfs and similar, dp, trees	1500	x1708
209A	Multicolored Marbles dp, math	1600	x2294
207D7	The Beaver's Problem - 3	1600	x97
207D5	The Beaver's Problem - 3	1600	x138
207B3	Military Trainings	1700	x163
207B1	Military Trainings	1600	x262
207A1	Beaver's Calculator 1.0 greedy	1600	x282
205B	Little Elephant and Sorting brute force, greedy	1400	x5993
204B	Little Elephant and Cards binary search, data structures	1500	x5120
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5628
203D	Hit Ball geometry, implementation, math	1700	x1409
203C	Photographer greedy, sortings	1400	x5635
203B	Game on Paper brute force, implementation	1300	x2571
202B	Brand New Easy Problem brute force	1700	x811
201A	Clear Symmetry constructive algorithms, dp, math	1700	x2992
198B	Jumping on Walls shortest paths	1400	x4209
198A	About Bacteria implementation, math	1700	x3133
197B	Limit math	1400	x4615
197A	Plate Game constructive algorithms, games, math	1600	x6228