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Codeforces Round 973 (Div. 2)
13:56:36
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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
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Custom test
Problems
#
Name
1207A
There Are Two Types Of Burgers
brute force
,
greedy
,
implementation
,
math
800
x21715
1206A
Choose Two Numbers
math
,
sortings
800
x24260
1200A
Hotelier
brute force
,
data structures
,
implementation
800
x20312
1196A
Three Piles of Candies
brute force
,
constructive algorithms
,
math
800
x27663
1194A
Remove a Progression
math
800
x16191
1191A
Tokitsukaze and Enhancement
brute force
800
x18111
1189A
Keanu Reeves
strings
800
x15230
1186A
Vus the Cossack and a Contest
implementation
800
x37343
1185A
Ropewalkers
math
800
x14866
1183A
Nearest Interesting Number
implementation
800
x24645
1180A
Alex and a Rhombus
dp
,
implementation
,
math
800
x25101
1178A
Prime Minister
greedy
800
x10397
1176A
Divide it!
brute force
,
greedy
,
implementation
800
x22763
1173A
Nauuo and Votes
greedy
800
x16199
1167A
Telephone Number
brute force
,
greedy
,
strings
800
x19248
1162A
Zoning Restrictions Again
implementation
800
x8252
1159A
A pile of stones
implementation
,
math
800
x12648
1154A
Restoring Three Numbers
math
800
x70130
1152A
Neko Finds Grapes
greedy
,
implementation
,
math
800
x15130
1150A
Stock Arbitraging
greedy
,
implementation
800
x11799
1148A
Another One Bites The Dust
greedy
800
x14856
1146A
Love "A"
implementation
,
strings
800
x21821
1144A
Diverse Strings
implementation
,
strings
800
x19196
1143A
The Doors
implementation
800
x13252
1139A
Even Substrings
implementation
,
strings
800
x16756
1136A
Nastya Is Reading a Book
implementation
800
x16360
1131A
Sea Battle
math
800
x12394
1130A
Be Positive
implementation
800
x11606
1118A
Water Buying
math
800
x20064
1114A
Got Any Grapes?
brute force
,
greedy
,
implementation
800
x18531
1108A
Two distinct points
implementation
800
x21702
1106A
Lunar New Year and Cross Counting
implementation
800
x12324
1104A
Splitting into digits
constructive algorithms
,
implementation
,
math
800
x15391
1102A
Integer Sequence Dividing
math
800
x24257
1099A
Snowball
implementation
800
x12876
1097A
Gennady and a Card Game
brute force
,
implementation
800
x38624
1096A
Find Divisible
greedy
,
implementation
,
math
800
x18698
1095A
Repeating Cipher
implementation
800
x31294
1093A
Dice Rolling
math
800
x17676
1092B
Teams Forming
sortings
800
x26201
1092A
Uniform String
implementation
800
x16195
1091A
New Year and the Christmas Ornament
brute force
,
implementation
,
math
800
x17470
1088A
Ehab and another construction problem
brute force
,
constructive algorithms
800
x16769
1085A
Right-Left Cipher
implementation
,
strings
800
x12137
1081A
Definite Game
constructive algorithms
,
math
800
x12015
1080A
Petya and Origami
math
800
x18057
1077A
Frog Jumping
math
800
x29856
1075A
The King's Race
implementation
,
math
800
x8481
1065A
Vasya and Chocolate
implementation
,
math
800
x14614
1064A
Make a triangle!
brute force
,
geometry
,
math
800
x22346
1061A
Coins
greedy
,
implementation
,
math
800
x21791
1060A
Phone Numbers
brute force
800
x14101
1056A
Determine Line
implementation
800
x6618
1054A
Elevator or Stairs?
implementation
800
x9045
1047A
Little C Loves 3 I
math
800
x19850
1043A
Elections
implementation
,
math
800
x10767
1041A
Heist
greedy
,
implementation
,
sortings
800
x24972
1038A
Equality
implementation
,
strings
800
x14860
1031A
Golden Plate
implementation
,
math
800
x12839
1030A
In Search of an Easy Problem
implementation
800
x129087
1028A
Find Square
implementation
800
x10757
1017A
The Rank
implementation
800
x20358
1015A
Points in Segments
implementation
800
x20885
1013A
Piles With Stones
math
800
x10931
1009A
Game Shopping
implementation
800
x11726
1006A
Adjacent Replacements
implementation
800
x21529
1005A
Tanya and Stairways
implementation
800
x23531
1003A
Polycarp's Pockets
implementation
800
x27036
1002A1
Generate superposition of all basis states
800
x838
999A
Mishka and Contest
brute force
,
implementation
800
x22848
996A
Hit the Lottery
dp
,
greedy
800
x89832
994A
Fingerprints
implementation
800
x14090
992A
Nastya and an Array
implementation
,
sortings
800
x13052
988A
Diverse Team
brute force
,
implementation
800
x24827
987A
Infinity Gauntlet
implementation
800
x16512
984A
Game
sortings
800
x19364
978B
File Name
greedy
,
strings
800
x36119
978A
Remove Duplicates
implementation
800
x26953
977A
Wrong Subtraction
implementation
800
x165541
976A
Minimum Binary Number
implementation
800
x10519
965A
Paper Airplanes
math
800
x9453
964A
Splits
math
800
x9627
959A
Mahmoud and Ehab and the even-odd game
games
,
math
800
x46703
954A
Diagonal Walking
implementation
800
x10491
952A
Quirky Quantifiers
math
800
x11213
950A
Left-handers, Right-handers and Ambidexters
implementation
,
math
800
x15225
946A
Partition
greedy
800
x16326
939A
Love Triangle
graphs
800
x25049
938A
Word Correction
implementation
800
x11422
937A
Olympiad
implementation
,
sortings
800
x15132
935A
Fafa and his Company
brute force
,
implementation
800
x42737
932A
Palindromic Supersequence
constructive algorithms
800
x10275
931A
Friends Meeting
brute force
,
greedy
,
implementation
,
math
800
x11891
919A
Supermarket
brute force
,
greedy
,
implementation
800
x16089
918A
Eleven
brute force
,
implementation
800
x16990
912A
Tricky Alchemy
implementation
800
x13451
910A
The Way to Home
dfs and similar
,
dp
,
greedy
,
implementation
800
x11787
908A
New Year and Counting Cards
brute force
,
implementation
800
x14786
900A
Find Extra One
geometry
,
implementation
800
x13552
899A
Splitting in Teams
constructive algorithms
,
greedy
,
math
800
x10177
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