Problemset - Codeforces

→ Pay attention

Before contest
IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)
15:14:45
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
269B	Greenhouse Effect dp	1700	x6402
269A	Magical Boxes greedy, math	1600	x3551
268E	Playlist math, probabilities, sortings	2100	x1031
268D	Wall Bars dp	2300	x512
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13838
268B	Buttons implementation, math	1000	x33135
268A	Games brute force	800	x89561
267C	Berland Traffic math, matrices	2700	x166
267B	Dominoes dfs and similar, graphs	2000	x654
267A	Subtractions math, number theory	900	x7721
266E	More Queries to Array... data structures, math	2500	x934
266D	BerDonalds graphs, math, shortest paths	2400	x905
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1363
266B	Queue at the School constructive algorithms, graph matchings, implementation, shortest paths	800	x140644
266A	Stones on the Table implementation	800	x199705
265B	Roadside Trees (Simplified Edition) greedy, implementation	1000	x17343
265A	Colorful Stones (Simplified Edition) implementation	800	x37673
264E	Roadside Trees data structures, dp	3000	x438
264D	Colorful Stones dp, two pointers	2500	x423
264C	Choosing Balls dp	2000	x2992
264B	Good Sequences dp, number theory	1500	x10629
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10993
263E	Rhombus brute force, data structures, dp	2500	x409
263D	Cycle in Graph dfs and similar, graphs	1800	x3675
263C	Circle of Numbers brute force, dfs and similar, implementation	2000	x1082
263B	Squares greedy, implementation, sortings	900	x9068
263A	Beautiful Matrix implementation	800	x256580
262B	Roma and Changing Signs greedy	1200	x11533
262A	Roma and Lucky Numbers implementation	800	x20306
261E	Maxim and Calculator brute force, dp, two pointers	2800	x418
261D	Maxim and Increasing Subsequence dp	2600	x585
261C	Maxim and Matrix constructive algorithms, dp, math	2000	x781
261B	Maxim and Restaurant dp, math, probabilities	1900	x1426
261A	Maxim and Discounts greedy, sortings	1400	x5275
260E	Dividing Kingdom binary search, brute force, data structures	2500	x465
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1567
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x2999
260B	Ancient Prophesy brute force, implementation, strings	1600	x3846
260A	Adding Digits implementation, math	1400	x15116
259B	Little Elephant and Magic Square brute force, implementation	1100	x14108
259A	Little Elephant and Chess brute force, strings	1000	x9243
258E	Little Elephant and Tree data structures, dfs and similar, trees	2400	x1146
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x1301
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1807
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1454
258A	Little Elephant and Bits greedy, math	1100	x23480
257E	Greedy Elevator data structures, implementation	2200	x301
257D	Sum greedy, math	1900	x1638
257C	View Angle brute force, geometry, math	1800	x4435
257B	Playing Cubes games, greedy, implementation	1300	x7265
257A	Sockets greedy, implementation, sortings	1100	x6557
256E	Lucky Arrays data structures	2400	x670
256D	Liars and Serge dp	2700	x258
255E	Furlo and Rublo and Game games, implementation, math	2200	x878
255D	Mr. Bender and Square binary search, implementation, math	1800	x2028
255C	Almost Arithmetical Progression brute force, dp	1500	x4759
255B	Code Parsing implementation	1200	x5030
255A	Greg's Workout implementation	800	x29202
254E	Dormitory dp, implementation	2100	x687
254D	Rats brute force, dfs and similar, graphs, implementation, shortest paths	2300	x581
254C	Anagram greedy, strings	1800	x1504
254B	Jury Size brute force, implementation	1500	x2163
254A	Cards with Numbers constructive algorithms, sortings	1200	x7173
253E	Printer binary search, data structures, implementation, sortings	2200	x554
253D	Table with Letters - 2 brute force, two pointers	2000	x852
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2660
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10941
253A	Boys and Girls greedy	1100	x11369
252B	Unsorting Array brute force, sortings	1800	x1729
252A	Little Xor brute force, implementation	1100	x5386
251E	Tree and Table dfs and similar, dp, implementation, trees	3000	x176
251D	Two Sets bitmasks, math	2700	x483
251C	Number Transformation dp, greedy, number theory	2000	x1051
251B	Playing with Permutations implementation, math	1800	x1281
251A	Points on Line binary search, combinatorics, two pointers	1300	x18195
250E	Mad Joe brute force	2000	x476
250D	Building Bridge geometry, ternary search, two pointers	1900	x916
250C	Movie Critics greedy	1600	x2033
250B	Restoring IPv6 implementation, strings	1500	x2011
250A	Paper Work greedy	1000	x4186
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	x502
248C	Robo-Footballer binary search, geometry	2000	x857
248B	Chilly Willy math, number theory	1400	x5401
248A	Cupboards implementation	800	x22863
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
246B	Increase and Decrease greedy, math	1300	x11456
246A	Buggy Sorting constructive algorithms, greedy, sortings	900	x9376
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	x2353
245C	Game with Coins greedy	1700	x1556
245B	Internet Address implementation, strings	1100	x5261
245A	System Administrator implementation	800	x8552