Problemset - Codeforces

→ Pay attention

Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)
3 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
169B	Replacing Digits greedy	1100	x3320
166A	Rank List binary search, implementation, sortings	1100	x17888
162A	Pentagonal numbers *special problem, implementation	1100	x806
161A	Dress'em in Vests! binary search, brute force, greedy, two pointers	1300	x4924
160B	Unlucky Ticket greedy, sortings	1100	x14135
159B	Matchmaker *special problem, greedy, sortings	1100	x3809
158D	Ice Sculptures *special problem, brute force, number theory	1300	x6255
158B	Taxi *special problem, greedy, implementation	1100	x87999
155B	Combination greedy, sortings	1100	x10344
152B	Steps binary search, implementation	1300	x6760
151B	Phone Numbers implementation, strings	1200	x6394
147A	Punctuation implementation, strings	1300	x3660
146B	Lucky Mask brute force, implementation	1300	x4414
145A	Lucky Conversion greedy, implementation	1200	x7178
144B	Meeting implementation	1300	x5289
143B	Help Kingdom of Far Far Away 2 implementation, strings	1200	x4997
136B	Ternary Logic implementation, math	1100	x4886
135A	Replacement greedy, implementation, sortings	1300	x7648
134A	Average Numbers brute force, implementation	1200	x4008
133B	Unary implementation	1200	x8828
132A	Turing Tape implementation	1300	x2788
131B	Opposites Attract implementation, math	1200	x7058
129B	Students and Shoelaces brute force, dfs and similar, graphs, implementation	1200	x12377
123A	Prime Permutation implementation, number theory, strings	1300	x3641
121A	Lucky Sum implementation	1100	x9283
120C	Winnie-the-Pooh and honey implementation, math	1100	x3684
120B	Quiz League implementation	1100	x3442
117A	Elevator implementation, math	1300	x2026
116B	Little Pigs and Wolves greedy, implementation	1100	x13800
112B	Petya and Square implementation, math	1200	x4198
110B	Lucky String constructive algorithms, strings	1100	x10250
103A	Testing Pants for Sadness greedy, implementation, math	1100	x6016
102A	Clothes brute force	1200	x3031
101A	Homework greedy	1200	x3872
100A	Carpeting the Room *special problem, implementation	1100	x931
99B	Help Chef Gerasim implementation, sortings	1300	x2998
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x15696
94B	Friends graphs, implementation, math	1300	x4706
92B	Binary Number greedy	1300	x4881
90B	African Crossword implementation, strings	1100	x5350
88A	Chord brute force, implementation	1200	x3837
85A	Domino constructive algorithms, implementation	1300	x1796
83A	Magical Array math	1300	x6286
82A	Double Cola implementation, math	1100	x30409
80B	Depression geometry, math	1200	x4450
79A	Bus Game greedy	1200	x4098
78B	Easter Eggs constructive algorithms, implementation	1200	x13702
72C	Extraordinarily Nice Numbers *special problem, math	1200	x923
71B	Progress Bar implementation, math	1300	x4562
70A	Cookies math	1300	x3296
69B	Bets greedy, implementation	1200	x3286
68A	Irrational problem implementation, number theory	1100	x4962
66B	Petya and Countryside brute force, implementation	1100	x20705
66A	Petya and Java implementation, strings	1300	x6433
64A	Factorial *special problem, implementation	1300	x3143
63B	Settlers' Training implementation	1200	x4842
62A	A Student's Dream greedy, math	1300	x3462
61B	Hard Work strings	1300	x3884
60A	Where Are My Flakes? implementation, two pointers	1300	x3662
59B	Fortune Telling implementation, number theory	1200	x6924
58B	Coins greedy	1300	x12279
57A	Square Earth? dfs and similar, greedy, implementation	1300	x2931
56B	Spoilt Permutation implementation	1300	x3742
55A	Flea travel implementation, math	1200	x3475
54A	Presents implementation	1300	x2083
53C	Little Frog constructive algorithms	1200	x6522
53A	Autocomplete implementation	1100	x5125
51A	Cheaterius's Problem implementation	1300	x1836
48B	Land Lot brute force, implementation	1200	x2701
47B	Coins implementation	1200	x14141
46B	T-shirts from Sponsor implementation	1100	x3711
44C	Holidays implementation	1300	x3494
43C	Lucky Tickets greedy	1300	x4290
43B	Letter implementation, strings	1100	x17066
41C	Email address expression parsing, implementation	1300	x3773
40A	Find Color constructive algorithms, geometry, implementation, math	1300	x4063
39H	Multiplication Table implementation	1300	x2777
39F	Pacifist frogs implementation	1300	x1579
39D	Cubical Planet math	1100	x4015
39B	Company Income Growth greedy	1300	x2686
38B	Chess brute force, implementation, math	1200	x3549
36A	Extra-terrestrial Intelligence implementation	1300	x3035
34C	Page Numbers expression parsing, implementation, sortings, strings	1300	x4266
33A	What is for dinner? greedy, implementation	1200	x4127
31A	Worms Evolution implementation	1200	x10415
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5386
27A	Next Test implementation, sortings	1200	x20508
25B	Phone numbers implementation	1100	x9762
25A	IQ test brute force	1300	x87463
23A	You're Given a String... brute force, greedy	1200	x5376
18C	Stripe data structures, implementation	1200	x13333
15A	Cottage Village implementation, sortings	1200	x3938
12C	Fruits greedy, implementation, sortings	1100	x6276
12B	Correct Solution? implementation, sortings	1100	x8616
9C	Hexadecimal's Numbers brute force, implementation, math	1200	x13029
9B	Running Student brute force, geometry, implementation	1200	x5545
8A	Train and Peter strings	1200	x5947
7A	Kalevitch and Chess brute force, constructive algorithms	1100	x7265
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x14315
6B	President's Office implementation	1100	x13144