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Problems
#
Name
1513A
Array and Peaks
constructive algorithms
,
implementation
800
x20125
1512B
Almost Rectangle
implementation
800
x26878
1512A
Spy Detected!
brute force
,
implementation
800
x85549
1511A
Review Site
greedy
800
x29093
1509A
Average Height
constructive algorithms
800
x27674
1506C
Double-ended Strings
brute force
,
implementation
,
strings
1000
x39370
1506A
Strange Table
math
800
x33120
1505A
Is it rated - 2
*special problem
,
implementation
,
interactive
900
x16393
1504A
Déjà Vu
constructive algorithms
,
strings
800
x23004
1501B
Napoleon Cake
dp
,
implementation
,
sortings
900
x21487
1501A
Alexey and Train
implementation
800
x12556
1499B
Binary Removals
brute force
,
dp
,
greedy
,
implementation
1000
x22310
1499A
Domino on Windowsill
combinatorics
,
constructive algorithms
,
math
800
x22132
1498A
GCD Sum
brute force
,
math
800
x25104
1497A
Meximization
brute force
,
data structures
,
greedy
,
sortings
800
x26679
1496A
Split it!
brute force
,
constructive algorithms
,
greedy
,
strings
900
x22552
1494A
ABC String
bitmasks
,
brute force
,
implementation
900
x23194
1493A
Anti-knapsack
constructive algorithms
,
greedy
800
x19875
1492A
Three swimmers
math
800
x23550
1491A
K-th Largest Value
brute force
,
greedy
,
implementation
800
x19197
1490B
Balanced Remainders
brute force
,
constructive algorithms
,
math
1000
x28318
1490A
Dense Array
greedy
,
math
800
x33595
1488A
From Zero To Y
*special problem
,
math
900
x1883
1487A
Arena
implementation
,
sortings
800
x27874
1486A
Shifting Stacks
greedy
,
implementation
900
x27460
1485A
Add and Divide
brute force
,
greedy
,
math
,
number theory
1000
x37153
1482A
Prison Break
math
800
x21481
1481A
Space Navigation
greedy
,
strings
800
x25917
1480B
The Great Hero
greedy
,
implementation
,
sortings
900
x18070
1480A
Yet Another String Game
games
,
greedy
,
strings
800
x27413
1478A
Nezzar and Colorful Balls
brute force
,
greedy
800
x28334
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x46687
1475B
New Year's Number
brute force
,
dp
,
math
900
x59825
1475A
Odd Divisor
math
,
number theory
900
x95852
1474B
Different Divisors
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1000
x44580
1474A
Puzzle From the Future
greedy
800
x23667
1473B
String LCM
brute force
,
math
,
number theory
,
strings
1000
x36027
1473A
Replacing Elements
greedy
,
implementation
,
math
,
sortings
800
x38118
1472B
Fair Division
dp
,
greedy
,
math
800
x62215
1472A
Cards for Friends
greedy
,
math
800
x46660
1471A
Strange Partition
greedy
,
math
,
number theory
900
x42630
1469B
Red and Blue
dp
,
greedy
1000
x31816
1469A
Regular Bracket Sequence
constructive algorithms
,
greedy
1000
x30614
1468N
Waste Sorting
greedy
,
implementation
900
x9396
1468E
Four Segments
greedy
800
x9951
1467A
Wizard of Orz
constructive algorithms
,
greedy
,
math
900
x25512
1466B
Last minute enhancements
dp
,
greedy
800
x23742
1466A
Bovine Dilemma
brute force
,
geometry
,
math
800
x23353
1462C
Unique Number
brute force
,
greedy
,
math
900
x37528
1462B
Last Year's Substring
dp
,
implementation
,
strings
800
x29656
1462A
Favorite Sequence
implementation
,
two pointers
800
x51292
1461A
String Generation
constructive algorithms
,
greedy
800
x19069
1459A
Red-Blue Shuffle
math
,
probabilities
800
x18179
1455A
Strange Functions
math
,
number theory
800
x27643
1454B
Unique Bid Auction
implementation
800
x30413
1454A
Special Permutation
constructive algorithms
,
probabilities
800
x45185
1453A
Cancel the Trains
implementation
800
x25483
1452C
Two Brackets
greedy
800
x21545
1452A
Robot Program
math
800
x23222
1451B
Non-Substring Subsequence
dp
,
greedy
,
implementation
,
strings
900
x20610
1451A
Subtract or Divide
greedy
,
math
800
x25591
1450B
Balls of Steel
brute force
,
geometry
,
greedy
1000
x16184
1450A
Avoid Trygub
constructive algorithms
,
sortings
800
x18610
1447B
Numbers Box
greedy
,
math
1000
x30040
1447A
Add Candies
constructive algorithms
,
math
800
x14527
1445B
Elimination
greedy
,
math
900
x16075
1445A
Array Rearrangment
greedy
,
sortings
800
x20545
1443A
Kids Seating
constructive algorithms
,
math
800
x16778
1440B
Sum of Medians
greedy
,
math
900
x34520
1440A
Buy the String
implementation
,
math
800
x20501
1438B
Valerii Against Everyone
constructive algorithms
,
data structures
,
greedy
,
sortings
1000
x32486
1438A
Specific Tastes of Andre
constructive algorithms
,
implementation
800
x19854
1437A
Marketing Scheme
brute force
,
constructive algorithms
,
greedy
,
math
800
x18554
1436B
Prime Square
constructive algorithms
,
math
900
x21927
1436A
Reorder
math
800
x23758
1433C
Dominant Piranha
constructive algorithms
,
greedy
900
x29146
1433B
Yet Another Bookshelf
greedy
,
implementation
800
x30263
1433A
Boring Apartments
implementation
,
math
800
x64735
1431A
Selling Hamburgers
*special problem
800
x2204
1430C
Numbers on Whiteboard
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
1000
x29502
1430B
Barrels
greedy
,
implementation
,
sortings
800
x20572
1430A
Number of Apartments
brute force
,
constructive algorithms
,
math
900
x22068
1428A
Box is Pull
math
800
x17186
1427A
Avoiding Zero
math
,
sortings
900
x18239
1426B
Symmetric Matrix
implementation
900
x22139
1426A
Floor Number
implementation
,
math
800
x56794
1422A
Fence
geometry
,
math
800
x22051
1421A
XORwice
bitmasks
,
greedy
,
math
800
x37705
1420A
Cubes Sorting
math
,
sortings
900
x25680
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x26861
1419A
Digit Game
games
,
greedy
,
implementation
900
x20748
1418A
Buying Torches
math
1000
x37872
1417A
Copy-paste
greedy
,
math
800
x18830
1415A
Prison Break
brute force
,
math
800
x15972
1413A
Finding Sasuke
constructive algorithms
,
math
800
x15356
1411B
Fair Numbers
brute force
,
number theory
1000
x34211
1411A
In-game Chat
implementation
800
x21921
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x84386
1408A
Circle Coloring
constructive algorithms
800
x12859
1406A
Subset Mex
greedy
,
implementation
,
math
900
x23514
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