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Problems
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Name
387B
George and Round
brute force
,
greedy
,
two pointers
1200
x11920
385B
Bear and Strings
brute force
,
greedy
,
implementation
,
math
,
strings
1200
x9543
385A
Bear and Raspberry
brute force
,
greedy
,
implementation
1000
x16232
384B
Multitasking
greedy
,
implementation
,
sortings
,
two pointers
1500
x3488
383A
Milking cows
data structures
,
greedy
1600
x5209
382A
Ksenia and Pan Scales
greedy
,
implementation
1100
x11785
381B
Sereja and Stairs
greedy
,
implementation
,
sortings
1100
x6587
381A
Sereja and Dima
greedy
,
implementation
,
two pointers
800
x60613
379C
New Year Ratings Change
greedy
,
sortings
1400
x6494
377B
Preparing for the Contest
binary search
,
data structures
,
greedy
,
sortings
1900
x1976
374B
Inna and Nine
combinatorics
,
greedy
1500
x3234
374A
Inna and Pink Pony
greedy
,
implementation
2000
x2843
372A
Counting Kangaroos is Fun
binary search
,
greedy
,
sortings
,
two pointers
1600
x12379
371E
Subway Innovation
greedy
,
math
,
two pointers
2000
x1206
371A
K-Periodic Array
greedy
,
implementation
,
math
1000
x5951
370E
Summer Reading
dp
,
greedy
2500
x230
370D
Broken Monitor
brute force
,
constructive algorithms
,
greedy
,
implementation
2100
x611
370C
Mittens
constructive algorithms
,
greedy
,
sortings
1800
x1504
369A
Valera and Plates
greedy
,
implementation
900
x10800
367C
Sereja and the Arrangement of Numbers
graphs
,
greedy
,
sortings
2000
x1703
364B
Free Market
dp
,
greedy
2200
x1150
363D
Renting Bikes
binary search
,
greedy
1800
x3748
363C
Fixing Typos
greedy
,
implementation
1400
x13073
362D
Fools and Foolproof Roads
data structures
,
dfs and similar
,
dsu
,
graphs
,
greedy
2100
x895
362A
Two Semiknights Meet
greedy
,
math
1500
x2630
360E
Levko and Game
graphs
,
greedy
,
shortest paths
2800
x674
360A
Levko and Array Recovery
greedy
,
implementation
1700
x2023
359A
Table
constructive algorithms
,
greedy
,
implementation
1000
x8381
358D
Dima and Hares
dp
,
greedy
1800
x3883
358C
Dima and Containers
constructive algorithms
,
greedy
,
implementation
2000
x1951
357A
Group of Students
brute force
,
greedy
,
implementation
1000
x6697
356D
Bags and Coins
bitmasks
,
constructive algorithms
,
dp
,
greedy
2700
x936
356C
Compartments
combinatorics
,
constructive algorithms
,
greedy
,
implementation
2100
x1229
355B
Vasya and Public Transport
greedy
,
implementation
1100
x4432
354A
Vasya and Robot
brute force
,
greedy
,
math
1500
x5394
353E
Antichain
dp
,
graph matchings
,
greedy
2200
x569
353B
Two Heaps
combinatorics
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
1900
x2175
351E
Jeff and Permutation
greedy
2200
x1510
351A
Jeff and Rounding
dp
,
greedy
,
implementation
,
math
1800
x2682
350C
Bombs
greedy
,
implementation
,
sortings
1600
x6457
350A
TL
brute force
,
greedy
,
implementation
1200
x15979
349B
Color the Fence
data structures
,
dp
,
greedy
,
implementation
1700
x13504
349A
Cinema Line
greedy
,
implementation
1100
x28743
346C
Number Transformation II
greedy
,
math
2200
x1419
343E
Pumping Stations
brute force
,
dfs and similar
,
divide and conquer
,
flows
,
graphs
,
greedy
,
trees
2900
x686
343C
Read Time
binary search
,
greedy
,
two pointers
1900
x2905
343B
Alternating Current
data structures
,
greedy
,
implementation
1600
x13051
342B
Xenia and Spies
brute force
,
greedy
,
implementation
1500
x3985
342A
Xenia and Divisors
greedy
,
implementation
1200
x12132
341E
Candies Game
constructive algorithms
,
greedy
3000
x428
339E
Three Swaps
constructive algorithms
,
dfs and similar
,
greedy
2700
x538
339C
Xenia and Weights
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
greedy
,
shortest paths
1700
x8141
339A
Helpful Maths
greedy
,
implementation
,
sortings
,
strings
800
x198926
337C
Quiz
binary search
,
greedy
,
math
,
matrices
,
number theory
1600
x4777
337B
Routine Problem
greedy
,
math
,
number theory
1400
x9098
337A
Puzzles
greedy
900
x75731
336C
Vasily the Bear and Sequence
brute force
,
greedy
,
implementation
,
number theory
1800
x2371
335F
Buy One, Get One Free
dp
,
greedy
3000
x459
335A
Banana
binary search
,
constructive algorithms
,
greedy
1400
x2516
333B
Chips
greedy
1800
x2602
333A
Secrets
greedy
1600
x3931
332E
Binary Key
dp
,
greedy
,
implementation
2400
x294
332C
Students' Revenge
data structures
,
greedy
,
sortings
2200
x884
329A
Purification
constructive algorithms
,
greedy
1500
x4593
328B
Sheldon and Ice Pieces
greedy
1500
x1257
325E
The Red Button
combinatorics
,
dfs and similar
,
dsu
,
graphs
,
greedy
2800
x752
322A
Ciel and Dancing
greedy
1000
x8089
321D
Ciel and Flipboard
dp
,
greedy
,
math
2900
x527
321C
Ciel the Commander
constructive algorithms
,
dfs and similar
,
divide and conquer
,
greedy
,
trees
2100
x6808
321B
Ciel and Duel
dp
,
flows
,
greedy
1900
x2963
320A
Magic Numbers
brute force
,
greedy
900
x33757
319D
Have You Ever Heard About the Word?
greedy
,
hashing
,
string suffix structures
,
strings
2800
x613
316A1
Special Task
greedy
1100
x2592
313E
Ilya and Two Numbers
constructive algorithms
,
data structures
,
dsu
,
greedy
2300
x540
313C
Ilya and Matrix
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x5525
309E
Sheep
binary search
,
greedy
2900
x217
309C
Memory for Arrays
binary search
,
bitmasks
,
greedy
1900
x1291
306B
Optimizer
data structures
,
greedy
,
sortings
2100
x437
305C
Ivan and Powers of Two
greedy
,
implementation
1600
x2418
298B
Sail
brute force
,
greedy
,
implementation
1200
x13553
298A
Snow Footprints
greedy
,
implementation
1300
x10510
297B
Fish Weight
constructive algorithms
,
greedy
1600
x3444
296A
Yaroslav and Permutations
greedy
,
math
1100
x21999
294B
Shaass and Bookshelf
dp
,
greedy
1700
x4378
293A
Weird Game
games
,
greedy
1500
x2814
291D
Parallel Programming
*special problem
,
greedy
1600
x1467
290F
Greedy Petya
*special problem
,
dfs and similar
,
graphs
,
greedy
2800
x127
288A
Polo the Penguin and Strings
greedy
1300
x6288
286C
Main Sequence
greedy
,
implementation
2100
x1283
285C
Building Permutation
greedy
,
implementation
,
sortings
1200
x22515
285A
Slightly Decreasing Permutations
greedy
,
implementation
1100
x13110
282B
Painting Eggs
greedy
,
math
1500
x12568
279E
Beautiful Decomposition
dp
,
games
,
greedy
,
number theory
1900
x1410
276D
Little Girl and Maximum XOR
bitmasks
,
dp
,
greedy
,
implementation
,
math
1700
x13001
276C
Little Girl and Maximum Sum
data structures
,
greedy
,
implementation
,
sortings
1500
x24072
276B
Little Girl and Game
games
,
greedy
1300
x27292
274D
Lovely Matrix
dfs and similar
,
graphs
,
greedy
,
sortings
2200
x1005
274B
Zero Tree
dfs and similar
,
dp
,
greedy
,
trees
1800
x4893
274A
k-Multiple Free Set
binary search
,
greedy
,
sortings
1500
x9866
270B
Multithreading
data structures
,
greedy
,
implementation
1400
x4084
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