Enter
|
Register
Home
Top
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Contest 2050 and Codeforces Round #718 (Div. 1 + Div. 2)
17:46:44
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
constructive algorithms
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
266B
Queue at the School
constructive algorithms
,
graph matchings
,
implementation
,
shortest paths
800
x61098
148A
Insomnia cure
constructive algorithms
,
implementation
,
math
800
x43664
443A
Anton and Letters
constructive algorithms
,
implementation
800
x41123
732A
Buy a Shovel
brute force
,
constructive algorithms
,
implementation
,
math
800
x32250
1343B
Balanced Array
constructive algorithms
,
math
800
x31079
1353A
Most Unstable Array
constructive algorithms
,
greedy
,
math
800
x26564
1454A
Special Permutation
constructive algorithms
,
probabilities
800
x24932
1337A
Ichihime and Triangle
constructive algorithms
,
math
800
x23875
1372A
Omkar and Completion
constructive algorithms
,
implementation
800
x23835
1325A
EhAb AnD gCd
constructive algorithms
,
greedy
,
number theory
800
x23632
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x23516
1400A
String Similarity
constructive algorithms
,
strings
800
x21649
1196A
Three Piles of Candies
brute force
,
constructive algorithms
,
math
800
x21050
1391A
Suborrays
constructive algorithms
,
math
800
x20440
686A
Free Ice Cream
constructive algorithms
,
implementation
800
x19589
1405A
Permutation Forgery
constructive algorithms
800
x18394
1509A
Average Height
constructive algorithms
800
x16674
1499A
Domino on Windowsill
combinatorics
,
constructive algorithms
,
math
800
x16078
513A
Game
constructive algorithms
,
math
800
x16020
1438A
Specific Tastes of Andre
constructive algorithms
,
implementation
800
x15623
1461A
String Generation
constructive algorithms
,
greedy
800
x15498
1437A
Marketing Scheme
brute force
,
constructive algorithms
,
greedy
,
math
800
x15365
1493A
Anti-knapsack
constructive algorithms
,
greedy
800
x14754
1504A
Déjà Vu
constructive algorithms
,
strings
800
x14509
1450A
Avoid Trygub
constructive algorithms
,
sortings
800
x14366
1513A
Array and Peaks
constructive algorithms
,
implementation
800
x13818
1443A
Kids Seating
constructive algorithms
,
math
800
x13761
1104A
Splitting into digits
constructive algorithms
,
implementation
,
math
800
x13181
1088A
Ehab and another construction problem
brute force
,
constructive algorithms
800
x12878
1413A
Finding Sasuke
constructive algorithms
,
math
800
x12337
1305A
Kuroni and the Gifts
brute force
,
constructive algorithms
,
greedy
,
sortings
800
x11946
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x11809
1447A
Add Candies
constructive algorithms
,
math
800
x11359
1408A
Circle Coloring
constructive algorithms
800
x11099
676A
Nicholas and Permutation
constructive algorithms
,
implementation
800
x11034
361A
Levko and Table
constructive algorithms
,
implementation
800
x10820
854A
Fraction
brute force
,
constructive algorithms
,
math
800
x10802
680A
Bear and Five Cards
constructive algorithms
,
implementation
800
x10162
629A
Far Relative’s Birthday Cake
brute force
,
combinatorics
,
constructive algorithms
,
implementation
800
x9772
1081A
Definite Game
constructive algorithms
,
math
800
x9245
932A
Palindromic Supersequence
constructive algorithms
800
x8597
899A
Splitting in Teams
constructive algorithms
,
greedy
,
math
800
x8267
421A
Pasha and Hamsters
constructive algorithms
,
implementation
800
x4018
1335B
Construct the String
constructive algorithms
900
x25500
1401A
Distance and Axis
constructive algorithms
,
math
900
x20439
1433C
Dominant Piranha
constructive algorithms
,
greedy
900
x18443
1467A
Wizard of Orz
constructive algorithms
,
greedy
,
math
900
x17820
1430A
Number of Apartments
brute force
,
constructive algorithms
,
math
900
x15292
768A
Oath of the Night's Watch
constructive algorithms
,
sortings
900
x15102
1436B
Prime Square
constructive algorithms
,
math
900
x14831
1496A
Split it!
brute force
,
constructive algorithms
,
greedy
,
strings
900
x13597
199A
Hexadecimal's theorem
brute force
,
constructive algorithms
,
implementation
,
number theory
900
x13185
670A
Holidays
brute force
,
constructive algorithms
,
greedy
,
math
900
x12277
1093B
Letters Rearranging
constructive algorithms
,
greedy
,
sortings
,
strings
900
x11668
764B
Timofey and cubes
constructive algorithms
,
implementation
900
x9281
814A
An abandoned sentiment from past
constructive algorithms
,
greedy
,
implementation
,
sortings
900
x8606
801B
Valued Keys
constructive algorithms
,
greedy
,
strings
900
x7706
246A
Buggy Sorting
constructive algorithms
,
greedy
,
sortings
900
x6801
11A
Increasing Sequence
constructive algorithms
,
implementation
,
math
900
x6693
1326A
Bad Ugly Numbers
constructive algorithms
,
number theory
1000
x19862
1333A
Little Artem
constructive algorithms
1000
x19213
688B
Lovely Palindromes
constructive algorithms
,
math
1000
x18032
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x17664
1476A
K-divisible Sum
binary search
,
constructive algorithms
,
greedy
,
math
1000
x17583
1469A
Regular Bracket Sequence
constructive algorithms
,
greedy
1000
x17423
1312B
Bogosort
constructive algorithms
,
sortings
1000
x16995
118B
Present from Lena
constructive algorithms
,
implementation
1000
x16699
766A
Mahmoud and Longest Uncommon Subsequence
constructive algorithms
,
strings
1000
x16590
1490B
Balanced Remainders
brute force
,
constructive algorithms
,
math
1000
x16448
1474B
Different Divisors
binary search
,
constructive algorithms
,
greedy
,
math
,
number theory
1000
x16125
1405B
Array Cancellation
constructive algorithms
,
implementation
1000
x15731
680B
Bear and Finding Criminals
constructive algorithms
,
implementation
1000
x14914
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x14862
798A
Mike and palindrome
brute force
,
constructive algorithms
,
strings
1000
x13691
1430C
Numbers on Whiteboard
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
1000
x13529
1438B
Valerii Against Everyone
constructive algorithms
,
data structures
,
greedy
,
sortings
1000
x12605
672B
Different is Good
constructive algorithms
,
implementation
,
strings
1000
x12590
1174A
Ehab Fails to Be Thanos
constructive algorithms
,
greedy
,
sortings
1000
x12465
804A
Find Amir
constructive algorithms
,
greedy
,
math
1000
x12044
761A
Dasha and Stairs
brute force
,
constructive algorithms
,
implementation
,
math
1000
x11699
1265A
Beautiful String
constructive algorithms
,
greedy
1000
x11644
805B
3-palindrome
constructive algorithms
1000
x11288
1144C
Two Shuffled Sequences
constructive algorithms
,
sortings
1000
x11085
1266B
Dice Tower
constructive algorithms
,
math
1000
x10278
1136B
Nastya Is Playing Computer Games
constructive algorithms
,
math
1000
x9603
777A
Shell Game
constructive algorithms
,
implementation
,
math
1000
x8106
779A
Pupils Redistribution
constructive algorithms
,
math
1000
x7839
998A
Balloons
constructive algorithms
,
implementation
1000
x7646
359A
Table
constructive algorithms
,
greedy
,
implementation
1000
x6242
637A
Voting for Photos
*special problem
,
constructive algorithms
,
implementation
1000
x4226
644A
Parliament of Berland
*special problem
,
constructive algorithms
1000
x3808
491A
Up the hill
constructive algorithms
,
implementation
1000
x1623
467B
Fedor and New Game
bitmasks
,
brute force
,
constructive algorithms
,
implementation
1100
x21679
1360C
Similar Pairs
constructive algorithms
,
graph matchings
,
greedy
,
sortings
1100
x21309
1342B
Binary Period
constructive algorithms
,
strings
1100
x18620
1370B
GCD Compression
constructive algorithms
,
math
,
number theory
1100
x17824
1401B
Ternary Sequence
constructive algorithms
,
greedy
,
math
1100
x17000
1407A
Ahahahahahahahaha
constructive algorithms
,
math
1100
x15646
1375A
Sign Flipping
constructive algorithms
,
math
1100
x15266
1455C
Ping-pong
constructive algorithms
,
games
,
math
1100
x14363
←
1
2
3
...
9
10
→
User lists
Name