Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 1101 (Div. 2)
01:48:31
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

constructive algorithms

Add tag

Problems

#	Name
1772C	Different Differences constructive algorithms, greedy, math	1000	x26224
1771B	Hossam and Friends binary search, constructive algorithms, dp, two pointers	1400	x21669
1770H	Koxia, Mahiru and Winter Festival constructive algorithms	3500	x165
1770D	Koxia and Game constructive algorithms, data structures, dfs and similar, dsu, flows, games, graph matchings, graphs, implementation	2000	x4407
1770B	Koxia and Permutation constructive algorithms	1000	x20900
1768D	Lucky Permutation constructive algorithms, dfs and similar, graphs, greedy	1800	x9070
1768C	Elemental Decompress constructive algorithms, greedy, implementation, sortings	1300	x15763
1767D	Playoff combinatorics, constructive algorithms, dp, greedy, math	1500	x11224
1765G	Guess the String constructive algorithms, interactive, probabilities	2600	x481
1765D	Watch the Videos binary search, constructive algorithms, two pointers	1700	x4873
1764F	Doremy's Experimental Tree brute force, constructive algorithms, dfs and similar, dsu, sortings, trees	2500	x1197
1763C	Another Array Problem brute force, constructive algorithms, greedy	2000	x7827
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x17026
1762G	Unequal Adjacent Elements constructive algorithms, sortings	3100	x144
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x4378
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x18653
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x2167
1761C	Set Construction constructive algorithms, dfs and similar, graphs, greedy	1400	x10760
1761B	Elimination of a Ring constructive algorithms, greedy, implementation	1000	x14763
1761A	Two Permutations brute force, constructive algorithms	800	x37761
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x5532
1758F	Decent Division constructive algorithms, data structures	3000	x218
1758D	Range = √Sum binary search, brute force, constructive algorithms, math, two pointers	1800	x8507
1758B	XOR = Average constructive algorithms	900	x23983
1758A	SSeeeeiinngg DDoouubbllee constructive algorithms, strings	800	x27094
1754B	Kevin and Permutation constructive algorithms, greedy, math	800	x19731
1753D	The Beach constructive algorithms, dfs and similar, graphs, shortest paths	2400	x2084
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x11634
1753A1	Make Nonzero Sum (easy version) constructive algorithms, dp, greedy	1300	x16493
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x121
1750C	Complementary XOR constructive algorithms, implementation	1400	x10495
1750A	Indirect Sort constructive algorithms, implementation, math	800	x17838
1749E	Cactus Wall constructive algorithms, dfs and similar, graphs, shortest paths	2400	x2078
1748F	Circular Xor Reversal bitmasks, constructive algorithms	3000	x397
1748D	ConstructOR bitmasks, chinese remainder theorem, combinatorics, constructive algorithms, math, number theory	2100	x3273
1747D	Yet Another Problem binary search, bitmasks, constructive algorithms, data structures	1900	x5599
1747B	BAN BAN constructive algorithms	900	x26040
1747A	Two Groups constructive algorithms, greedy	800	x26506
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1696
1746C	Permutation Operations constructive algorithms, greedy, implementation, math	1300	x14120
1746B	Rebellion constructive algorithms, greedy, two pointers	800	x18681
1746A	Maxmina constructive algorithms, greedy	800	x21140
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x304
1743C	Save the Magazines constructive algorithms, dp, greedy	1100	x20715
1743B	Permutation Value constructive algorithms, greedy	800	x23212
1742F	Smaller constructive algorithms, greedy, strings	1500	x14085
1741B	Funny Permutation constructive algorithms, math	800	x26788
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x359
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x5092
1740D	Knowledge Cards constructive algorithms, data structures	1500	x9076
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x12366
1740A	Factorise N+M constructive algorithms, number theory	800	x23239
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x10104
1739B	Array Recovery constructive algorithms, greedy, math	1100	x24503
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x558
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1387
1738D	Permutation Addicts constructive algorithms, data structures, dfs and similar, dsu, graphs, trees	1900	x3762
1738B	Prefix Sum Addicts constructive algorithms, greedy, math, sortings	1200	x18872
1737F	Ela and Prime GCD constructive algorithms, math, number theory	3300	x159
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x6428
1736D	Equal Binary Subsequences constructive algorithms, geometry, greedy, implementation, strings	2200	x2787
1735E	House Planning constructive algorithms, data structures, graph matchings, greedy	2400	x1247
1735A	Working Week constructive algorithms, greedy, math	800	x21072
1734E	Rectangular Congruence constructive algorithms, number theory	2100	x3258
1734B	Bright, Nice, Brilliant constructive algorithms	800	x16413
1733E	Conveyor constructive algorithms, dp, math	2700	x1489
1733D1	Zero-One (Easy Version) constructive algorithms, greedy, math	1400	x15087
1733C	Parity Shuffle Sorting constructive algorithms, sortings	1300	x17131
1733B	Rule of League constructive algorithms, math	900	x21135
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x17619
1730D	Prefixes and Suffixes constructive algorithms, strings, two pointers	2200	x3031
1729C	Jumping on Tiles constructive algorithms, strings	1100	x21668
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x8266
1728B	Best Permutation constructive algorithms, greedy	800	x20684
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x4173
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x16892
1725H	Hot Black Hot White constructive algorithms, math	1800	x3019
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x14281
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x514
1720E	Misha and Paintings constructive algorithms, data structures, greedy, implementation, math	2700	x953
1719B	Mathematical Circus constructive algorithms, math	800	x19174
1718E	Impressionism constructive algorithms, graphs, implementation, math	3500	x180
1717F	Madoka and The First Session constructive algorithms, flows, graph matchings, graphs, implementation	2500	x640
1717D	Madoka and The Corruption Scheme combinatorics, constructive algorithms, greedy, math	1900	x4886
1717B	Madoka and Underground Competitions constructive algorithms, implementation	1100	x15654
1716B	Permutation Chain constructive algorithms, math	800	x21965
1715F	Crop Squares constructive algorithms, geometry, interactive, math	2700	x593
1715B	Beautiful Array constructive algorithms, greedy, math	1000	x34185
1715A	Crossmarket constructive algorithms, greedy, math	800	x24392
1714F	Build a Tree and That Is It constructive algorithms, implementation, trees	1900	x3690
1713F	Lost Array bitmasks, combinatorics, constructive algorithms, dp, math	2900	x690
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x6255
1713C	Build Permutation constructive algorithms, dp, math	1200	x18918
1713B	Optimal Reduction constructive algorithms, sortings	1000	x22739
1712D	Empty Graph binary search, constructive algorithms, data structures, greedy, shortest paths	2000	x5124
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x22409
1711A	Perfect Permutation constructive algorithms	800	x26529
1710D	Recover the Tree constructive algorithms, trees	3400	x560
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1631
1710A	Color the Picture constructive algorithms, greedy, math	1500	x11939

The only programming contests Web 2.0 platform

Server time: May/30/2026 15:46:30 (g1).

Desktop version, switch to mobile version.

Supported by