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Before contest
Codeforces Round 941 (Div. 1)
22:51:39
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Before contest
Codeforces Round 941 (Div. 2)
22:51:39
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brute force
combine-tags-by-or
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2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
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graph matchings
graphs
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Problems
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Name
192A
Funky Numbers
binary search
,
brute force
,
implementation
1300
x10110
1271C
Shawarma Tent
brute force
,
geometry
,
greedy
,
implementation
1300
x10246
1003C
Intense Heat
brute force
,
implementation
,
math
1300
x10303
1558A
Charmed by the Game
brute force
,
math
1300
x10915
1005C
Summarize to the Power of Two
brute force
,
greedy
,
implementation
1300
x11290
1493B
Planet Lapituletti
brute force
,
implementation
1300
x11611
1108C
Nice Garland
brute force
,
greedy
,
math
1300
x11736
1819A
Constructive Problem
brute force
,
greedy
1300
x12025
1902C
Insert and Equalize
brute force
,
constructive algorithms
,
greedy
,
math
,
number theory
1300
x12133
271B
Prime Matrix
binary search
,
brute force
,
math
,
number theory
1300
x12333
1650D
Twist the Permutation
brute force
,
constructive algorithms
,
implementation
,
math
1300
x12646
1711B
Party
brute force
,
graphs
1300
x13084
1279B
Verse For Santa
binary search
,
brute force
,
implementation
1300
x13348
1913C
Game with Multiset
binary search
,
bitmasks
,
brute force
,
greedy
1300
x13525
1821C
Tear It Apart
brute force
,
implementation
,
math
,
strings
1300
x13536
1810C
Make It Permutation
brute force
,
greedy
,
sortings
1300
x13741
1553B
Reverse String
brute force
,
dp
,
hashing
,
implementation
,
strings
1300
x13790
1948C
Arrow Path
brute force
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
shortest paths
1300
x14040
1882B
Sets and Union
bitmasks
,
brute force
,
constructive algorithms
,
greedy
1300
x14197
1667A
Make it Increasing
brute force
,
greedy
,
math
1300
x14323
96B
Lucky Numbers (easy)
binary search
,
bitmasks
,
brute force
1300
x14376
1249C1
Good Numbers (easy version)
brute force
,
greedy
,
implementation
1300
x15050
1846E1
Rudolf and Snowflakes (simple version)
brute force
,
implementation
,
math
1300
x15269
1311C
Perform the Combo
brute force
1300
x15571
1555B
Two Tables
brute force
1300
x15595
1407B
Big Vova
brute force
,
greedy
,
math
,
number theory
1300
x16664
1661B
Getting Zero
bitmasks
,
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
shortest paths
1300
x16931
1850F
We Were Both Children
brute force
,
implementation
,
math
,
number theory
1300
x16978
1698C
3SUM Closure
brute force
,
data structures
1300
x17850
1927D
Find the Different Ones!
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
two pointers
1300
x18051
1476B
Inflation
binary search
,
brute force
,
greedy
,
math
1300
x19441
1555C
Coin Rows
brute force
,
constructive algorithms
,
dp
,
implementation
1300
x20807
1692F
3SUM
brute force
,
math
1300
x21180
1328B
K-th Beautiful String
binary search
,
brute force
,
combinatorics
,
implementation
,
math
1300
x28034
476B
Dreamoon and WiFi
bitmasks
,
brute force
,
combinatorics
,
dp
,
math
,
probabilities
1300
x28944
189A
Cut Ribbon
brute force
,
dp
1300
x62247
25A
IQ test
brute force
1300
x80828
1769C1
Подкрутка I
*special problem
,
brute force
,
dp
,
greedy
1200
x928
177D1
Encrypting Messages
brute force
1200
x2027
48B
Land Lot
brute force
,
implementation
1200
x2599
958C1
Encryption (easy)
brute force
1200
x2770
102A
Clothes
brute force
1200
x2897
645A
Amity Assessment
brute force
,
constructive algorithms
,
implementation
1200
x3355
38B
Chess
brute force
,
implementation
,
math
1200
x3382
88A
Chord
brute force
,
implementation
1200
x3735
134A
Average Numbers
brute force
,
implementation
1200
x3794
203A
Two Problems
brute force
,
implementation
1200
x4111
23A
You're Given a String...
brute force
,
greedy
1200
x5062
9B
Running Student
brute force
,
geometry
,
implementation
1200
x5187
1510K
King's Task
brute force
,
graphs
,
implementation
1200
x5260
593A
2Char
brute force
,
implementation
1200
x5670
1184A1
Heidi Learns Hashing (Easy)
brute force
,
math
,
number theory
1200
x5817
895A
Pizza Separation
brute force
,
implementation
1200
x6448
366B
Dima and To-do List
brute force
,
implementation
1200
x6714
400B
Inna and New Matrix of Candies
brute force
,
implementation
,
schedules
1200
x7318
908B
New Year and Buggy Bot
brute force
,
implementation
1200
x7569
940A
Points on the line
brute force
,
greedy
,
sortings
1200
x8131
749B
Parallelogram is Back
brute force
,
constructive algorithms
,
geometry
1200
x8359
1023A
Single Wildcard Pattern Matching
brute force
,
implementation
,
strings
1200
x8505
1121B
Mike and Children
brute force
,
implementation
1200
x8569
344B
Simple Molecules
brute force
,
graphs
,
math
1200
x8646
982A
Row
brute force
,
constructive algorithms
1200
x8935
463A
Caisa and Sugar
brute force
,
implementation
1200
x9093
1191B
Tokitsukaze and Mahjong
brute force
,
implementation
1200
x9409
875A
Classroom Watch
brute force
,
math
1200
x9487
385B
Bear and Strings
brute force
,
greedy
,
implementation
,
math
,
strings
1200
x9506
554B
Ohana Cleans Up
brute force
,
greedy
,
strings
1200
x9663
1011B
Planning The Expedition
binary search
,
brute force
,
implementation
1200
x9795
1143B
Nirvana
brute force
,
math
,
number theory
1200
x9919
842A
Kirill And The Game
brute force
,
two pointers
1200
x9955
304A
Pythagorean Theorem II
brute force
,
math
1200
x10060
222A
Shooshuns and Sequence
brute force
,
implementation
1200
x10325
431B
Shower Line
brute force
,
implementation
1200
x10453
1091B
New Year and the Treasure Geolocation
brute force
,
constructive algorithms
,
greedy
,
implementation
1200
x10495
1799B
Equalize by Divide
brute force
,
constructive algorithms
,
greedy
,
math
1200
x10790
911B
Two Cakes
binary search
,
brute force
,
implementation
1200
x10858
787A
The Monster
brute force
,
math
,
number theory
1200
x11026
1903B
StORage room
bitmasks
,
brute force
,
constructive algorithms
,
greedy
1200
x11239
432B
Football Kit
brute force
,
greedy
,
implementation
1200
x11460
129B
Students and Shoelaces
brute force
,
dfs and similar
,
graphs
,
implementation
1200
x11658
387B
George and Round
brute force
,
greedy
,
two pointers
1200
x11902
9C
Hexadecimal's Numbers
brute force
,
implementation
,
math
1200
x12342
1945C
Left and Right Houses
brute force
1200
x12405
298B
Sail
brute force
,
greedy
,
implementation
1200
x13493
1491B
Minimal Cost
brute force
,
math
1200
x13556
1763B
Incinerate
binary search
,
brute force
,
data structures
,
implementation
,
math
,
sortings
1200
x13859
1530C
Pursuit
binary search
,
brute force
,
greedy
,
sortings
1200
x14216
1582C
Grandma Capa Knits a Scarf
brute force
,
data structures
,
greedy
,
strings
,
two pointers
1200
x14261
1826A
Trust Nobody
brute force
,
greedy
,
implementation
,
sortings
1200
x14463
1647B
Madoka and the Elegant Gift
brute force
,
constructive algorithms
,
graphs
,
implementation
1200
x15043
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x15102
1874A
Jellyfish and Game
brute force
,
games
,
greedy
,
implementation
1200
x15700
1881C
Perfect Square
brute force
,
implementation
1200
x15752
1671C
Dolce Vita
binary search
,
brute force
,
greedy
,
math
1200
x15846
350A
TL
brute force
,
greedy
,
implementation
1200
x15910
1419B
Stairs
brute force
,
constructive algorithms
,
greedy
,
implementation
,
math
1200
x15939
1860B
Fancy Coins
binary search
,
brute force
,
greedy
,
math
1200
x15942
1859C
Another Permutation Problem
brute force
,
dp
,
greedy
,
math
1200
x16252
1934B
Yet Another Coin Problem
brute force
,
dp
,
greedy
,
math
1200
x16356
1853B
Fibonaccharsis
binary search
,
brute force
,
math
1200
x16470
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