Problemset - Codeforces

Rating changes for last rounds are temporarily rolled back. They will be returned soon. ×

→ Pay attention

Before contest
Codeforces Round 941 (Div. 1)
3 days
Register now »

*has extra registration

Before contest
Codeforces Round 941 (Div. 2)
3 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

implementation

Add tag

Problems

#	Name
1760A	Medium Number implementation, sortings	800	x53123
1759A	Yes-Yes? implementation, strings	800	x28654
1750C	Complementary XOR constructive algorithms, implementation	1400	x9218
1750B	Maximum Substring brute force, greedy, implementation	800	x15930
1750A	Indirect Sort constructive algorithms, implementation, math	800	x16735
1749C	Number Game binary search, data structures, games, greedy, implementation	1400	x13247
1749A	Cowardly Rooks greedy, implementation	800	x21936
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x10383
1748B	Diverse Substrings brute force, implementation, strings	1400	x14170
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x88
1746C	Permutation Operations constructive algorithms, greedy, implementation, math	1300	x12301
1744C	Traffic Light binary search, implementation, two pointers	1000	x24013
1744B	Even-Odd Increments implementation, math	800	x22726
1744A	Number Replacement greedy, implementation	800	x26271
1743A	Password brute force, combinatorics, implementation, math	800	x25997
1742C	Stripes implementation	900	x30760
1742B	Increasing greedy, implementation, sortings	800	x44031
1742A	Sum implementation	800	x64013
1741A	Compare T-Shirt Sizes implementation, implementation, strings	800	x29721
1739A	Immobile Knight implementation	800	x22274
1738A	Glory Addicts greedy, implementation, sortings	800	x13318
1737D	Ela and the Wiring Wizard brute force, dp, graphs, greedy, implementation, shortest paths	2200	x1805
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5544
1737B	Ela's Fitness and the Luxury Number binary search, implementation, math	1300	x9158
1737A	Ela Sorting Books greedy, implementation, strings	900	x9927
1736D	Equal Binary Subsequences constructive algorithms, geometry, greedy, implementation, strings	2200	x2384
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9532
1732D1	Balance (Easy version) brute force, data structures, implementation, number theory	1500	x8217
1732C2	Sheikh (Hard Version) binary search, bitmasks, brute force, greedy, implementation, two pointers	2100	x2449
1732B	Ugu brute force, dp, greedy, implementation	900	x13962
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14374
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x11769
1728A	Colored Balls: Revisited brute force, greedy, implementation, sortings	800	x24318
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x79
1722F	L-shapes dfs and similar, implementation	1700	x6503
1722E	Counting Rectangles brute force, data structures, dp, implementation	1600	x9975
1722C	Word Game data structures, implementation	800	x29264
1722B	Colourblindness implementation	800	x42952
1722A	Spell Check implementation	800	x46493
1721B	Deadly Laser implementation	1000	x21504
1721A	Image greedy, implementation	800	x26556
1720E	Misha and Paintings constructive algorithms, data structures, greedy, implementation, math	2700	x733
1720C	Corners greedy, implementation	1200	x16262
1719C	Fighting Tournament binary search, data structures, implementation, two pointers	1400	x12830
1718E	Impressionism constructive algorithms, graphs, implementation, math	3500	x102
1718B	Fibonacci Strings greedy, implementation, math, number theory	2000	x2866
1717F	Madoka and The First Session constructive algorithms, flows, graph matchings, graphs, implementation	2500	x507
1717B	Madoka and Underground Competitions constructive algorithms, implementation	1100	x14461
1716C	Robot in a Hallway data structures, dp, greedy, implementation, ternary search	2000	x3998
1715C	Monoblock combinatorics, data structures, implementation, math	1700	x8306
1714F	Build a Tree and That Is It constructive algorithms, implementation, trees	1900	x3052
1714B	Remove Prefix data structures, greedy, implementation	800	x29216
1714A	Everyone Loves to Sleep implementation, math	900	x28361
1713A	Traveling Salesman Problem geometry, greedy, implementation	800	x21636
1712A	Wonderful Permutation greedy, implementation	800	x23699
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2347
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8467
1709B	Also Try Minecraft data structures, dp, implementation	900	x21785
1709A	Three Doors brute force, greedy, implementation, math	800	x28924
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5516
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x12792
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14404
1705C	Mark and His Unfinished Essay brute force, implementation	1400	x12951
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x22116
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2211
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4828
1704C	Virus greedy, implementation, sortings	1200	x14319
1704B	Luke is a Foodie brute force, greedy, implementation	1000	x16233
1703E	Mirror Grid implementation	1200	x16751
1703C	Cypher brute force, implementation, strings	800	x33963
1703B	ICPC Balloons data structures, implementation	800	x44966
1703A	YES or YES? brute force, implementation, strings	800	x61999
1701F	Points combinatorics, data structures, implementation, math, matrices	2500	x880
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x15649
1701A	Grass Field implementation	800	x25804
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x18221
1698F	Equal Reversal constructive algorithms, graphs, implementation, math	2800	x554
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x20634
1697F	Too Many Constraints 2-sat, constructive algorithms, graphs, implementation	2800	x512
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1133
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x13909
1697A	Parkway Walk greedy, implementation	800	x25367
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x152
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11288
1694A	Creep greedy, implementation	800	x22098
1692E	Binary Deque binary search, implementation, two pointers	1200	x19786
1692D	The Clock brute force, implementation	1100	x18649
1692C	Where's the Bishop? implementation	800	x32335
1692A	Marathon implementation	800	x59234
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5450
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21145
1690D	Black and White Stripe implementation, two pointers	1000	x26571
1690C	Restoring the Duration of Tasks data structures, greedy, implementation	800	x25335
1690B	Array Decrements greedy, implementation	800	x24575
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16359
1687D	Cute number binary search, brute force, data structures, dsu, implementation, math	2900	x555
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3149
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x11994
1682D	Circular Spanning Tree constructive algorithms, implementation, trees	2000	x3159
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x14078