Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Codeforces Round 941 (Div. 1)
11:51:27
Register now »
*has extra registration
Before contest
Codeforces Round 941 (Div. 2)
11:51:27
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
data structures
combine-tags-by-or
*combine tags by OR
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
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
467E
Alex and Complicated Task
data structures
,
dp
,
greedy
2300
x761
466C
Number of Ways
binary search
,
brute force
,
data structures
,
dp
,
two pointers
1700
x34485
464E
The Classic Problem
data structures
,
graphs
,
shortest paths
3000
x1300
461C
Appleman and a Sheet of Paper
data structures
,
implementation
2200
x1310
460C
Present
binary search
,
data structures
,
greedy
1700
x6032
459D
Pashmak and Parmida's problem
data structures
,
divide and conquer
,
sortings
1800
x9477
455E
Function
data structures
2900
x653
455D
Serega and Fun
data structures
2700
x2798
453E
Little Pony and Lord Tirek
data structures
3100
x646
452F
Permutation
data structures
,
divide and conquer
,
hashing
2700
x1362
452E
Three strings
data structures
,
dsu
,
string suffix structures
,
strings
2400
x1025
446C
DZY Loves Fibonacci Numbers
data structures
,
math
,
number theory
2400
x3168
446B
DZY Loves Modification
brute force
,
data structures
,
greedy
2000
x3514
444C
DZY Loves Colors
data structures
2400
x2773
442D
Adam and Tree
data structures
,
trees
2600
x950
442C
Artem and Array
data structures
,
greedy
2500
x1618
438D
The Child and Sequence
data structures
,
math
2300
x7810
436F
Banners
brute force
,
data structures
,
dp
3000
x358
436E
Cardboard Box
data structures
,
greedy
2600
x1246
431E
Chemistry Experiment
binary search
,
data structures
,
ternary search
2200
x898
429D
Tricky Function
data structures
,
divide and conquer
,
geometry
2200
x2573
427B
Prison Transfer
data structures
,
implementation
1100
x13680
425D
Sereja and Squares
binary search
,
data structures
,
hashing
2300
x1386
425C
Sereja and Two Sequences
data structures
,
dp
2300
x881
424D
Biathlon Track
binary search
,
brute force
,
constructive algorithms
,
data structures
,
dp
2300
x554
421D
Bug in Code
binary search
,
data structures
,
sortings
1900
x492
420D
Cup Trick
data structures
2200
x764
420C
Bug in Code
data structures
,
graphs
,
implementation
,
two pointers
1900
x1192
418E
Tricky Password
data structures
3100
x290
418D
Big Problems for Organizers
data structures
,
graphs
,
trees
2800
x466
414E
Mashmokh's Designed Problem
data structures
3200
x191
414D
Mashmokh and Water Tanks
binary search
,
data structures
,
greedy
,
trees
,
two pointers
2300
x673
413E
Maze 2D
data structures
,
divide and conquer
2200
x663
407E
k-d-sequence
data structures
3100
x684
403E
Two Rooted Trees
data structures
,
implementation
,
trees
2900
x201
400E
Inna and Binary Logic
binary search
,
bitmasks
,
data structures
2100
x932
398D
Instant Messanger
data structures
x828
396C
On Changing Tree
data structures
,
graphs
,
trees
x1519
392D
Three Arrays
data structures
x210
391D2
Supercollider
data structures
x177
390C
Inna and Candy Boxes
data structures
x622
387E
George and Cards
binary search
,
data structures
2200
x845
385C
Bear and Prime Numbers
binary search
,
brute force
,
data structures
,
dp
,
implementation
,
math
,
number theory
1700
x9364
383C
Propagating tree
data structures
,
dfs and similar
,
trees
2000
x6075
383A
Milking cows
data structures
,
greedy
1600
x5196
380E
Sereja and Dividing
data structures
2600
x292
380C
Sereja and Brackets
data structures
,
schedules
2000
x13521
379F
New Year Tree
data structures
,
divide and conquer
,
trees
2400
x2110
377D
Developing Game
data structures
2400
x1079
377B
Preparing for the Contest
binary search
,
data structures
,
greedy
,
sortings
1900
x1971
375D
Tree and Queries
data structures
,
dfs and similar
,
trees
2400
x6171
375B
Maximum Submatrix 2
data structures
,
dp
,
implementation
,
sortings
1600
x4949
374E
Inna and Babies
binary search
,
data structures
,
dsu
,
geometry
,
implementation
2600
x178
374D
Inna and Sequence
binary search
,
data structures
,
dp
,
trees
2000
x843
372D
Choosing Subtree is Fun
binary search
,
data structures
,
dfs and similar
,
trees
,
two pointers
2600
x906
372C
Watching Fireworks is Fun
data structures
,
dp
,
math
2100
x3619
371D
Vessels
data structures
,
dsu
,
implementation
,
trees
1800
x5302
369E
Valera and Queries
binary search
,
data structures
2200
x2020
368B
Sereja and Suffixes
data structures
,
dp
1100
x39398
367B
Sereja ans Anagrams
binary search
,
data structures
1900
x2404
367A
Sereja and Algorithm
data structures
,
implementation
1500
x4282
366D
Dima and Trap Graph
binary search
,
data structures
,
dfs and similar
,
dsu
,
shortest paths
,
two pointers
2000
x1270
364A
Matrix
combinatorics
,
data structures
,
implementation
1600
x4590
363E
Two Circles
brute force
,
data structures
,
implementation
2500
x192
362D
Fools and Foolproof Roads
data structures
,
dfs and similar
,
dsu
,
graphs
,
greedy
2100
x895
362C
Insertion Sort
data structures
,
dp
,
implementation
,
math
1900
x1645
359D
Pair of Numbers
binary search
,
brute force
,
data structures
,
math
,
two pointers
2000
x4811
356A
Knight Tournament
data structures
,
dsu
1500
x12714
351D
Jeff and Removing Periods
data structures
2700
x1013
350D
Looking for Owls
binary search
,
data structures
,
geometry
,
hashing
,
sortings
2400
x254
349B
Color the Fence
data structures
,
dp
,
greedy
,
implementation
1700
x13470
348C
Subset Sums
brute force
,
data structures
2500
x2076
343D
Water Tree
data structures
,
dfs and similar
,
graphs
,
trees
2100
x5408
343B
Alternating Current
data structures
,
greedy
,
implementation
1600
x12981
342E
Xenia and Tree
data structures
,
divide and conquer
,
trees
2400
x7593
341D
Iahub and Xors
data structures
2500
x1147
340D
Bubble Sort Graph
binary search
,
data structures
,
dp
1500
x6997
339D
Xenia and Bit Operations
data structures
,
trees
1700
x23556
338E
Optimize!
data structures
2600
x943
332C
Students' Revenge
data structures
,
greedy
,
sortings
2200
x880
332B
Maximum Absurdity
data structures
,
dp
,
implementation
1500
x7807
331D3
Escaping on Beaveractor
data structures
,
implementation
,
trees
3000
x168
331B2
Shave Beaver!
data structures
1900
x672
331A2
Oh Sweet Beaverette
data structures
,
sortings
1500
x1383
323C
Two permutations
data structures
2400
x567
321E
Ciel and Gondolas
data structures
,
divide and conquer
,
dp
2600
x4482
319E
Ping-Pong
data structures
3000
x630
319B
Psychos in a Line
data structures
,
implementation
1900
x4010
316E3
Summer Homework
data structures
,
math
2300
x504
316E2
Summer Homework
data structures
,
math
2300
x380
316E1
Summer Homework
brute force
,
data structures
1500
x1447
314D
Sereja and Straight Lines
binary search
,
data structures
,
geometry
,
sortings
,
two pointers
2500
x514
314C
Sereja and Subsequences
data structures
,
dp
2000
x1759
313E
Ilya and Two Numbers
constructive algorithms
,
data structures
,
dsu
,
greedy
2300
x540
311D
Interval Cubing
data structures
,
math
2600
x659
311C
Fetch the Treasure
brute force
,
data structures
,
graphs
,
shortest paths
2500
x475
311B
Cats Transport
data structures
,
dp
2400
x3179
306B
Optimizer
data structures
,
greedy
,
sortings
2100
x437
301D
Yaroslav and Divisors
data structures
2200
x2195
297E
Mystic Carvings
data structures
3000
x352
←
1
2
...
13
14
15
16
17
→
User lists
Name