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Name
1612B
Special Permutation
constructive algorithms
,
greedy
900
x18702
1612A
Distance
brute force
,
constructive algorithms
800
x18373
1611C
Polycarp Recovers the Permutation
constructive algorithms
1000
x19607
1611B
Team Composition: Programmers and Mathematicians
binary search
,
constructive algorithms
,
math
800
x32484
1611A
Make Even
constructive algorithms
,
math
800
x33904
1610A
Anti Light's Cell Guessing
math
900
x17260
1609A
Divide and Multiply
greedy
,
implementation
,
math
,
number theory
900
x19274
1608A
Find Array
constructive algorithms
,
math
800
x20507
1607C
Minimum Extraction
brute force
,
sortings
1000
x27448
1607B
Odd Grasshopper
math
900
x44421
1607A
Linear Keyboard
implementation
,
strings
800
x41569
1606A
AB Balance
strings
900
x42186
1605B
Reverse Sort
greedy
,
sortings
1000
x19604
1605A
A.M. Deviation
math
,
number theory
800
x21830
1604A
Era
greedy
800
x22831
1602A
Two Subsequences
implementation
800
x20006
1598B
Groups
brute force
,
implementation
1000
x17165
1598A
Computer Game
brute force
,
dfs and similar
,
dp
,
implementation
800
x26499
1594A
Consecutive Sum Riddle
math
800
x27827
1593C
Save More Mice
binary search
,
greedy
,
greedy
1000
x28594
1593B
Make it Divisible by 25
dfs and similar
,
dp
,
greedy
,
math
,
math
900
x45601
1593A
Elections
math
800
x42784
1592A
Gamer Hemose
binary search
,
greedy
,
math
,
sortings
800
x24126
1585B
Array Eversion
greedy
900
x16486
1585A
Life of a Flower
implementation
800
x19260
1584C
Two Arrays
greedy
,
math
,
sortings
900
x18017
1584B
Coloring Rectangles
greedy
,
math
1000
x14498
1584A
Mathematical Addition
math
800
x15697
1583A
Windblume Ode
math
,
number theory
800
x14508
1582B
Luntik and Subsequences
combinatorics
,
math
900
x38070
1582A
Luntik and Concerts
math
800
x19950
1581A
CQXYM Count Permutations
combinatorics
,
math
,
number theory
800
x14419
1579E1
Permutation Minimization by Deque
constructive algorithms
,
greedy
,
math
1000
x26312
1579A
Casimir's String Solitaire
math
,
strings
800
x42858
1574A
Regular Bracket Sequences
constructive algorithms
800
x23436
1573A
Countdown
greedy
800
x22095
1571A
Sequence of Comparisons
*special problem
800
x1678
1569B
Chess Tournament
constructive algorithms
1000
x20093
1569A
Balanced Substring
implementation
800
x26778
1567B
MEXor Mixup
bitmasks
,
greedy
1000
x36677
1567A
Domino Disaster
implementation
,
strings
800
x32036
1566C
MAX-MEX Cut
bitmasks
,
constructive algorithms
,
dp
,
greedy
1000
x19358
1566B
MIN-MEX Cut
bitmasks
,
constructive algorithms
,
dp
,
greedy
800
x21732
1566A
Median Maximization
binary search
,
greedy
,
math
800
x25778
1562B
Scenes From a Memory
brute force
,
constructive algorithms
,
implementation
,
math
,
number theory
1000
x20788
1562A
The Miracle and the Sleeper
greedy
,
math
800
x26518
1561A
Simply Strange Sort
brute force
,
implementation
,
sortings
800
x17292
1560C
Infinity Table
implementation
,
math
800
x28255
1560B
Who's Opposite?
math
800
x39642
1560A
Dislike of Threes
implementation
800
x76863
1559B
Mocha and Red and Blue
dp
,
greedy
900
x24574
1559A
Mocha and Math
bitmasks
,
constructive algorithms
,
math
900
x50829
1557A
Ezzat and Two Subsequences
brute force
,
math
,
sortings
800
x29453
1556A
A Variety of Operations
math
800
x18669
1555A
PizzaForces
brute force
,
math
900
x30833
1554A
Cherry
greedy
800
x31796
1553A
Digits Sum
math
,
number theory
800
x34955
1552A
Subsequence Permutation
sortings
,
strings
800
x25667
1551B1
Wonderful Coloring - 1
greedy
,
strings
800
x31857
1551A
Polycarp and Coins
greedy
,
math
800
x60031
1550B
Maximum Cost Deletion
greedy
,
math
1000
x28985
1550A
Find The Array
greedy
,
math
800
x29783
1549B
Gregor and the Pawn Game
dfs and similar
,
dp
,
flows
,
graph matchings
,
graphs
,
greedy
,
implementation
800
x27637
1549A
Gregor and Cryptography
math
,
number theory
800
x36289
1547B
Alphabetical Strings
greedy
,
implementation
,
strings
800
x28301
1547A
Shortest Path with Obstacle
implementation
,
math
800
x32790
1546A
AquaMoon and Two Arrays
brute force
,
greedy
800
x18679
1543B
Customising the Track
combinatorics
,
greedy
,
math
900
x24827
1543A
Exciting Bets
greedy
,
math
,
number theory
900
x45698
1542A
Odd Set
math
800
x53205
1541A
Pretty Permutations
constructive algorithms
,
greedy
,
implementation
800
x31006
1539B
Love Song
dp
,
implementation
,
strings
800
x27233
1539A
Contest Start
combinatorics
,
geometry
,
greedy
,
math
1000
x21948
1538B
Friends and Candies
greedy
,
math
800
x34141
1538A
Stone Game
brute force
,
dp
,
greedy
800
x41422
1537B
Bad Boy
constructive algorithms
,
greedy
,
math
900
x46923
1537A
Arithmetic Array
greedy
,
math
800
x41951
1536A
Omkar and Bad Story
brute force
,
constructive algorithms
800
x20956
1535B
Array Reodering
brute force
,
greedy
,
math
,
number theory
,
sortings
900
x34833
1535A
Fair Playoff
brute force
,
implementation
800
x59048
1534A
Colour the Flag
brute force
,
implementation
800
x13413
1530B
Putting Plates
constructive algorithms
,
implementation
800
x16371
1530A
Binary Decimal
greedy
,
math
800
x22101
1529A
Eshag Loves Big Arrays
constructive algorithms
,
greedy
,
math
800
x31304
1527A
And Then There Were K
bitmasks
800
x43630
1526A
Mean Inequality
constructive algorithms
,
sortings
800
x25196
1525B
Permutation Sort
constructive algorithms
,
greedy
900
x26963
1525A
Potion-making
math
,
number theory
800
x27318
1523A
Game of Life
implementation
800
x14120
1521A
Nastia and Nearly Good Numbers
constructive algorithms
,
math
,
number theory
1000
x43107
1520C
Not Adjacent Matrix
constructive algorithms
1000
x35328
1520B
Ordinary Numbers
brute force
,
math
,
number theory
800
x51150
1520A
Do Not Be Distracted!
brute force
,
implementation
800
x60263
1519B
The Cake Is a Lie
dp
,
math
800
x33901
1519A
Red and Blue Beans
math
800
x30973
1517A
Sum of 2050
greedy
,
math
800
x27145
1516A
Tit for Tat
greedy
800
x24948
1515B
Phoenix and Puzzle
brute force
,
geometry
,
math
,
number theory
1000
x27464
1515A
Phoenix and Gold
constructive algorithms
,
greedy
,
math
800
x21642
1514A
Perfectly Imperfect Array
math
,
number theory
800
x25600
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