Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 1131 (Div. 3)
3 days
Register now »

→ Filter Problems

Difficulty: —

constructive algorithms

Add tag

Problems

#	Name
2271A	Robot Odd Moves constructive algorithms, math	800	x11187
2267B	Fashionable Array brute force, constructive algorithms, sortings	800	x16182
2263B	Min Matrices constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms	900	x13846
2259C	101 constructive algorithms, greedy	1000	x19301
2250B	String Construction constructive algorithms, constructive algorithms	1000	x15652
2247B	Yet Another Constructive constructive algorithms	900	x16936
2247A	Zero Sum constructive algorithms, dp, number theory	800	x23463
2246B	ezraft and Array constructive algorithms, number theory	900	x18173
2246A	farmpiggie and Subset Sum constructive algorithms	800	x20283
2244C	Stepan and Permutation constructive algorithms, dfs and similar, dsu, greedy, math, number theory, sortings, sortings, sortings	1100	x18498
2241B	Good times Good times constructive algorithms, dfs and similar, math	1100	x22192
2234B	Palindrome, Twelve and Two Terms brute force, constructive algorithms, math	800	x23095
2233B	Different Distances constructive algorithms	900	x18925
2231B	Another Sorting Problem constructive algorithms	1100	x18962
2231A	Construct an Array constructive algorithms	800	x26442
2229C1	We Be Flipping (Easy Version) constructive algorithms, greedy	900	x16662
2227C	Snowfall constructive algorithms, math	800	x24115
2224A	Zhily and Array Operating constructive algorithms, greedy	800	x12563
2218D	The 67th OEIS Problem constructive algorithms, greedy, greedy, greedy, math, math, number theory	1100	x23083
2218C	The 67th Permutation Problem constructive algorithms, greedy, math	800	x32870
2211B	Mickey Mouse Constructive constructive algorithms, dp, greedy, math	1100	x13476
2210A	A Simple Sequence constructive algorithms, dp, greedy, number theory	800	x25445
2208A	Bingo Candies constructive algorithms, math	800	x22612
2205A	Simons and Making It Beautiful brute force, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms	800	x19094
2192B	Flipping Binary String constructive algorithms, strings	1000	x16530
2191B	MEX Reordering constructive algorithms, sortings	1000	x21494
2191A	Array Coloring constructive algorithms	800	x29316
2188A	Divisible Permutation constructive algorithms	800	x27160
2185A	Perfect Root constructive algorithms, math	800	x48002
2183B	Yet Another MEX Problem constructive algorithms, greedy	1100	x17019
2182A	New Year String constructive algorithms, greedy, implementation, strings	800	x26751
2167C	Isamatdin and His Magic Wand! constructive algorithms, greedy, implementation, sortings	800	x38178
2162C	Beautiful XOR bitmasks, constructive algorithms, greedy	1100	x22815
2162B	Beautiful String brute force, constructive algorithms	1000	x29471
2158A	Suspension constructive algorithms, greedy, math	800	x24717
2156A	Pizza Time brute force, constructive algorithms, greedy	800	x28089
2155B	Abraham's Great Escape constructive algorithms, graphs	1100	x18231
2154B	Make it Zigzag constructive algorithms, greedy	1000	x21079
2148D	Destruction of the Dandelion Fields constructive algorithms, greedy, sortings	1000	x28578
2147B	Multiple Construction constructive algorithms	1000	x20021
2147A	Shortest Increasing Path constructive algorithms, greedy	800	x21440
2144B	Maximum Cost Permutation constructive algorithms, greedy	1000	x19647
2144A	Cut the Array brute force, constructive algorithms, math, number theory	800	x22628
2140B	Another Divisibility Problem constructive algorithms, math, number theory	900	x23807
2138A	Cake Assignment bitmasks, constructive algorithms, greedy	1100	x18016
2137B	Fun Permutation constructive algorithms, math, number theory	900	x28006
2137A	Collatz Conjecture constructive algorithms, math	800	x36909
2136B	Like the Bitset constructive algorithms, greedy, two pointers	900	x22062
2134A	Painting With Two Colors constructive algorithms, implementation, math	800	x27771
2131B	Alternating Series constructive algorithms, greedy, math	800	x31841
2130B	Pathless constructive algorithms	1100	x22330
2128B	Deque Process constructive algorithms, greedy, sortings, two pointers	1100	x22462
2127A	Mix Mex Max constructive algorithms, greedy, math	800	x22278
2125A	Difficult Contest constructive algorithms, implementation, sortings, strings	800	x28859
2122A	Greedy Grid constructive algorithms, greedy	800	x21719
2121B	Above the Clouds constructive algorithms, greedy, strings	800	x33170
2118A	Equal Subsequences constructive algorithms, greedy	800	x29658
2117B	Shrink constructive algorithms	800	x32931
2106B	St. Chroma constructive algorithms, greedy, math	900	x29304
2104C	Card Game brute force, constructive algorithms, games, greedy, math	1100	x18003
2102A	Dinner Time constructive algorithms, math	900	x22300
2096A	Wonderful Sticks constructive algorithms, greedy	800	x21024
2094B	Bobritto Bandito brute force, constructive algorithms	800	x34342
2092B	Lady Bug brute force, constructive algorithms, implementation, math	1000	x25730
2091C	Combination Lock constructive algorithms, greedy	1000	x29734
2085A	Serval and String Theory constructive algorithms, implementation	900	x24180
2084A	Max and Mod constructive algorithms, math	800	x17684
2082A	Binary Matrix constructive algorithms, greedy	800	x11397
2078B	Vicious Labyrinth constructive algorithms, graphs, greedy, implementation, math	1100	x18828
2072B	Having Been a Treasurer in the Past, I Help Goblins Deceive combinatorics, constructive algorithms, strings	900	x31910
2071B	Perfecto brute force, constructive algorithms, greedy, math	1100	x21548
2067A	Adjacent Digit Sums brute force, constructive algorithms, math	800	x26166
2065A	Skibidus and Amog'u brute force, constructive algorithms, greedy, implementation, strings	800	x58060
2064B	Variety is Discouraged binary search, constructive algorithms, greedy, two pointers	1100	x20690
2063B	Subsequence Update constructive algorithms, data structures, greedy, sortings	1100	x23890
2062A	String constructive algorithms, greedy, math, strings	800	x28782
2059A	Milya and Two Arrays constructive algorithms, greedy, sortings	800	x29624
2057A	MEX Table constructive algorithms, math	800	x27914
2056A	Shape Perimeter constructive algorithms, math	800	x27100
2055B	Crafting constructive algorithms, greedy, sortings	1000	x28025
2055A	Two Frogs constructive algorithms, games, greedy, math	800	x34279
2051C	Preparing for the Exam constructive algorithms, implementation	1000	x28890
2048B	Kevin and Permutation constructive algorithms, greedy	900	x21179
2044D	Harder Problem constructive algorithms, greedy, math	1100	x24935
2040B	Paint a Strip constructive algorithms, greedy, math	1000	x24945
2039B	Shohag Loves Strings constructive algorithms, greedy, implementation, strings	1000	x17880
2039A	Shohag Loves Mod constructive algorithms, number theory	800	x18485
2037C	Superultra's Favorite Permutation constructive algorithms, greedy, math, number theory	1000	x26412
2035B	Everyone Loves Tres constructive algorithms, greedy, math, number theory	900	x21203
2033B	Sakurako and Water brute force, constructive algorithms, greedy	900	x29569
2033A	Sakurako and Kosuke constructive algorithms, implementation, math	800	x42236
2032B	Medians constructive algorithms, greedy, implementation, math	1100	x21311
2031A	Penchick and Modern Monument constructive algorithms, dp, greedy, math	800	x21500
2030B	Minimise Oneness combinatorics, constructive algorithms, games, math	800	x24294
2030A	A Gift From Orangutan constructive algorithms, greedy, math, sortings	800	x28073
2029B	Replacement constructive algorithms, games, strings	1100	x12115
2026A	Perpendicular Segments constructive algorithms, geometry, greedy, math	900	x20776
2024B	Buying Lemonade binary search, constructive algorithms, sortings	1100	x17570
2022A	Bus to Pénjamo constructive algorithms, greedy, implementation, math	800	x17549
2013B	Battle for Survive constructive algorithms, greedy, math	900	x29061

←

The only programming contests Web 2.0 platform

Server time: Oct/28/2026 08:01:53 (g2).

Desktop version, switch to mobile version.

Supported by