Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round (Div. 2)
5 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

constructive algorithms

Add tag

Problems

#	Name
335B	Palindrome constructive algorithms, dp	1900	x2430
335A	Banana binary search, constructive algorithms, greedy	1400	x2910
333C	Lucky Tickets brute force, constructive algorithms	2700	x443
331E2	Deja Vu constructive algorithms, dp	3100	x240
331E1	Deja Vu constructive algorithms, graphs, implementation	2900	x220
330B	Road Construction constructive algorithms, graphs	1300	x19955
329D	The Evil Temple and the Moving Rocks constructive algorithms	2500	x444
329C	Graph Reconstruction constructive algorithms	2400	x1034
329A	Purification constructive algorithms, greedy	1500	x4881
327E	Axis Walking bitmasks, combinatorics, constructive algorithms, dp, meet-in-the-middle	2300	x1664
327D	Block Tower constructive algorithms, dfs and similar, graphs	1900	x2562
323B	Tournament-graph constructive algorithms, graphs	2200	x499
323A	Black-and-White Cube combinatorics, constructive algorithms	1600	x988
321C	Ciel the Commander constructive algorithms, dfs and similar, divide and conquer, greedy, trees	2100	x10113
317E	Princess and Her Shadow constructive algorithms, shortest paths	3100	x177
317C	Balance constructive algorithms, dfs and similar, graphs, trees	2500	x591
316F3	Suns and Rays constructive algorithms, dfs and similar, implementation	2200	x199
313E	Ilya and Two Numbers constructive algorithms, data structures, dsu, greedy	2300	x638
313C	Ilya and Matrix constructive algorithms, greedy, implementation, sortings	1400	x6028
311A	The Closest Pair constructive algorithms, implementation	1300	x4260
306D	Polygon constructive algorithms, geometry	2300	x342
305A	Strange Addition brute force, constructive algorithms, implementation	1600	x5288
303A	Lucky Permutation Triple constructive algorithms, implementation, math	1300	x8697
301C	Yaroslav and Algorithm constructive algorithms	2500	x514
301A	Yaroslav and Sequence constructive algorithms	1800	x3280
300A	Array brute force, constructive algorithms, implementation	1100	x28551
297D	Color the Carpet constructive algorithms	2500	x657
297C	Splitting the Uniqueness constructive algorithms	2400	x1042
297B	Fish Weight constructive algorithms, greedy	1600	x3796
297A	Parity Game constructive algorithms	1700	x3906
290E	HQ *special problem, constructive algorithms	2500	x241
286E	Ladies' Shop constructive algorithms, fft, math	2800	x1100
286A	Lucky Permutation constructive algorithms, math	1400	x3492
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6949
282C	XOR and OR constructive algorithms, implementation, math	1500	x10457
277B	Set of Points constructive algorithms, geometry	2300	x865
275B	Convex Shape constructive algorithms, implementation	1700	x3108
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1359
271E	Three Horses constructive algorithms, math, number theory	2200	x694
271C	Secret constructive algorithms, implementation	1500	x3167
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1965
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x14801
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1467
266B	Queue at the School constructive algorithms, graph matchings, implementation, shortest paths	800	x175295
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x11961
261C	Maxim and Matrix constructive algorithms, dp, math	2000	x848
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1719
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x3261
254A	Cards with Numbers constructive algorithms, sortings	1200	x7898
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2877
246A	Buggy Sorting constructive algorithms, greedy, sortings	900	x10412
245D	Restoring Table constructive algorithms, greedy	1500	x2961
241G	Challenging Balloons constructive algorithms	1900	x569
238B	Boring Partition constructive algorithms	1800	x1431
238A	Not Wool Sequences constructive algorithms, math	1300	x2222
234H	Merging Two Decks constructive algorithms, greedy	2000	x630
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1608
232C	Doe Graphs constructive algorithms, divide and conquer, dp, graphs, shortest paths	2600	x345
232A	Cycles binary search, constructive algorithms, graphs, greedy	1600	x2890
231B	Magic, Wizardry and Wonders constructive algorithms, greedy	1500	x4028
226D	The table constructive algorithms, greedy	2100	x1197
225A	Dice Tower constructive algorithms, greedy	1100	x14602
220B	Little Elephant and Array constructive algorithms, data structures	1800	x13791
218A	Mountain Scenery brute force, constructive algorithms, implementation	1100	x10771
214B	Hometask brute force, constructive algorithms, greedy, math	1600	x5426
213D	Stars constructive algorithms, geometry	2300	x386
209C	Trails and Glades constructive algorithms, dsu, graphs, greedy	2400	x931
209B	Pixels constructive algorithms, math	2100	x509
201A	Clear Symmetry constructive algorithms, dp, math	1700	x3276
199A	Hexadecimal's theorem brute force, constructive algorithms, implementation, number theory	900	x31207
198D	Cube Snake constructive algorithms	2700	x118
197A	Plate Game constructive algorithms, games, math	1600	x6977
196C	Paint Tree constructive algorithms, divide and conquer, geometry, sortings, trees	2200	x1076
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x711
193A	Cutting Figure constructive algorithms, graphs, trees	1700	x4814
183A	Headquarters constructive algorithms, math	1700	x676
180F	Mathematical Analysis Rocks! constructive algorithms, implementation, math	1200	x2952
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x548
173D	Deputies constructive algorithms, graphs, greedy, implementation	2500	x322
171A	Mysterious numbers - 1 *special problem, constructive algorithms	1200	x5172
161B	Discounts constructive algorithms, greedy, sortings	1700	x2105
156B	Suspects constructive algorithms, data structures, implementation	1600	x2506
148C	Terse princess constructive algorithms, greedy	1700	x3430
148A	Insomnia cure constructive algorithms, implementation, math	800	x117559
145B	Lucky Number 2 constructive algorithms	1800	x2452
142B	Help General constructive algorithms, greedy, implementation	1800	x2428
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x1441
141C	Queue constructive algorithms, greedy, sortings	1800	x2783
135C	Zero-One constructive algorithms, games, greedy	1900	x1469
134C	Swaps constructive algorithms, graphs, greedy	2200	x615
132D	Constants in the language of Shakespeare constructive algorithms, dp, greedy	2100	x752
128D	Numbers constructive algorithms, implementation	2000	x1307
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x3007
126C	E-reader Display constructive algorithms, greedy	2000	x853
125D	Two progressions constructive algorithms, greedy	2200	x466
125C	Hobbits' Party constructive algorithms, greedy	1600	x1115
119B	Before Exam constructive algorithms, implementation, sortings	1900	x1152
118B	Present from Lena constructive algorithms, implementation	1000	x35683
110B	Lucky String constructive algorithms, strings	1100	x11190
109D	Lucky Sorting constructive algorithms, sortings	2000	x938

The only programming contests Web 2.0 platform

Server time: Oct/19/2026 19:55:09 (g2).

Desktop version, switch to mobile version.

Supported by