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#
Name
1425D
Danger of Mad Snakes
combinatorics
,
dp
,
math
2300
x809
1422C
Bargain
combinatorics
,
dp
,
math
1700
x8103
1420D
Rescue Nibel!
combinatorics
,
data structures
,
sortings
1800
x7363
1418E
Expected Damage
binary search
,
combinatorics
,
probabilities
2400
x1731
1408G
Clusterization Counting
combinatorics
,
dp
,
dsu
,
fft
,
graphs
,
trees
2700
x931
1403C
Chess Rush
*special problem
,
combinatorics
,
dp
,
implementation
,
math
3200
x43
1402C
Star Trek
*special problem
,
combinatorics
,
dfs and similar
,
dp
,
games
,
graphs
,
matrices
,
trees
2600
x199
1400G
Mercenaries
bitmasks
,
brute force
,
combinatorics
,
dp
,
dsu
,
math
,
two pointers
2600
x907
1400D
Zigzags
brute force
,
combinatorics
,
data structures
,
math
,
two pointers
1900
x9842
1392H
ZS Shuffles Cards
combinatorics
,
dp
,
math
,
probabilities
3000
x678
1391C
Cyclic Permutations
combinatorics
,
dp
,
graphs
,
math
1500
x14584
1383E
Strange Operation
combinatorics
,
data structures
,
dp
2800
x756
1371E2
Asterism (Hard Version)
binary search
,
combinatorics
,
dp
,
math
,
number theory
,
sortings
2300
x2302
1371E1
Asterism (Easy Version)
binary search
,
brute force
,
combinatorics
,
math
,
number theory
,
sortings
1900
x4963
1366E
Two Arrays
binary search
,
brute force
,
combinatorics
,
constructive algorithms
,
dp
,
two pointers
2100
x3976
1365G
Secure Password
bitmasks
,
combinatorics
,
constructive algorithms
,
interactive
,
math
2800
x923
1359E
Modular Stability
combinatorics
,
math
,
number theory
2000
x5753
1342E
Placing Rooks
combinatorics
,
fft
,
math
2300
x2872
1336E2
Chiori and Doll Picking (hard version)
bitmasks
,
brute force
,
combinatorics
,
math
3500
x291
1336E1
Chiori and Doll Picking (easy version)
bitmasks
,
brute force
,
combinatorics
,
math
2700
x652
1334E
Divisor Paths
combinatorics
,
graphs
,
greedy
,
math
,
number theory
2200
x2646
1332E
Height All the Same
combinatorics
,
constructive algorithms
,
math
,
matrices
2100
x3618
1329B
Dreamoon Likes Sequences
bitmasks
,
combinatorics
,
math
1700
x6413
1328B
K-th Beautiful String
binary search
,
brute force
,
combinatorics
,
implementation
,
math
1300
x28254
1327F
AND Segments
bitmasks
,
combinatorics
,
data structures
,
dp
,
two pointers
2500
x1610
1327E
Count The Blocks
combinatorics
,
dp
,
math
1800
x8620
1326C
Permutation Partitions
combinatorics
,
greedy
,
math
1300
x15319
1312D
Count the Arrays
combinatorics
,
math
1700
x8994
1307E
Cow and Treats
binary search
,
combinatorics
,
dp
,
greedy
,
implementation
,
math
2500
x1122
1305C
Kuroni and Impossible Calculation
brute force
,
combinatorics
,
math
,
number theory
1600
x13754
1301C
Ayoub's function
binary search
,
combinatorics
,
greedy
,
math
,
strings
1700
x9076
1299D
Around the World
bitmasks
,
combinatorics
,
dfs and similar
,
dp
,
graphs
,
graphs
,
math
,
trees
3000
x421
1295F
Good Contest
combinatorics
,
dp
,
probabilities
2700
x1024
1293B
JOE is on TV!
combinatorics
,
greedy
,
math
1000
x20857
1292F
Nora's Toy Boxes
bitmasks
,
combinatorics
,
dp
3500
x308
1292C
Xenon's Attack on the Gangs
combinatorics
,
dfs and similar
,
dp
,
greedy
,
trees
2300
x1878
1288C
Two Arrays
combinatorics
,
dp
1600
x12358
1285F
Classical?
binary search
,
combinatorics
,
number theory
2900
x1072
1284E
New Year and Castle Construction
combinatorics
,
geometry
,
math
,
sortings
2500
x1097
1284C
New Year and Permutation
combinatorics
,
math
1600
x7747
1284B
New Year and Ascent Sequence
binary search
,
combinatorics
,
data structures
,
dp
,
implementation
,
sortings
1400
x10606
1280F
Intergalactic Sliding Puzzle
combinatorics
,
constructive algorithms
,
math
3400
x59
1279E
New Year Permutations
combinatorics
,
dp
2700
x356
1279D
Santa's Bot
combinatorics
,
math
,
probabilities
1700
x5935
1278F
Cards
combinatorics
,
dp
,
math
,
number theory
,
probabilities
2600
x1765
1276C
Beautiful Rectangle
brute force
,
combinatorics
,
constructive algorithms
,
data structures
,
greedy
,
math
2300
x1469
1276B
Two Fairs
combinatorics
,
dfs and similar
,
dsu
,
graphs
1900
x4680
1272C
Yet Another Broken Keyboard
combinatorics
,
dp
,
implementation
1200
x25336
1271E
Common Number
binary search
,
combinatorics
,
dp
,
math
2100
x3176
1267K
Key Storage
combinatorics
,
math
2100
x1759
1264D2
Beautiful Bracket Sequence (hard version)
combinatorics
,
probabilities
2900
x856
1264D1
Beautiful Bracket Sequence (easy version)
combinatorics
,
dp
,
probabilities
2600
x1184
1254E
Send Tree to Charlie
combinatorics
,
dfs and similar
,
dsu
,
trees
3300
x262
1251F
Red-White Fence
combinatorics
,
fft
2500
x803
1245F
Daniel and Spring Cleaning
bitmasks
,
brute force
,
combinatorics
,
dp
2300
x1735
1239A
Ivan the Fool and the Probability Theory
combinatorics
,
dp
,
math
1700
x7223
1238D
AB-string
binary search
,
combinatorics
,
dp
,
strings
1900
x5876
1237F
Balanced Domino Placements
combinatorics
,
dp
2600
x835
1236B
Alice and the List of Presents
combinatorics
,
math
1500
x10704
1228E
Another Filling the Grid
combinatorics
,
dp
,
math
2300
x2555
1227F2
Wrong Answer on test 233 (Hard Version)
combinatorics
,
math
2400
x1469
1221G
Graph And Numbers
bitmasks
,
brute force
,
combinatorics
,
dp
,
meet-in-the-middle
2900
x521
1215B
The Number of Products
combinatorics
,
dp
,
implementation
1400
x12316
1207D
Number Of Permutations
combinatorics
1800
x5932
1205E
Expected Value Again
combinatorics
,
strings
3100
x272
1204E
Natasha, Sasha and the Prefix Sums
combinatorics
,
dp
,
math
,
number theory
2300
x1599
1202D
Print a 1337-string...
combinatorics
,
constructive algorithms
,
math
,
strings
1900
x5028
1197E
Culture Code
binary search
,
combinatorics
,
data structures
,
dp
,
shortest paths
,
sortings
2300
x1606
1195D2
Submarine in the Rybinsk Sea (hard edition)
combinatorics
,
math
,
number theory
1800
x4560
1195D1
Submarine in the Rybinsk Sea (easy edition)
combinatorics
,
math
,
number theory
1500
x7785
1194F
Crossword Expert
combinatorics
,
dp
,
number theory
,
probabilities
,
two pointers
2400
x974
1188E
Problem from Red Panda
combinatorics
3300
x227
1185G2
Playlist for Polycarp (hard version)
combinatorics
,
dp
2600
x717
1185G1
Playlist for Polycarp (easy version)
bitmasks
,
combinatorics
,
dp
2100
x2631
1181C
Flag
brute force
,
combinatorics
,
dp
,
implementation
1900
x3009
1178F1
Short Colorful Strip
combinatorics
,
dfs and similar
,
dp
2200
x2060
1178C
Tiles
combinatorics
,
greedy
,
math
1300
x11469
1174E
Ehab and the Expected GCD Problem
combinatorics
,
dp
,
math
,
number theory
2500
x1356
1172B
Nauuo and Circle
combinatorics
,
dfs and similar
,
dp
,
trees
1900
x3783
1167F
Scalar Queries
combinatorics
,
data structures
,
math
,
sortings
2300
x1579
1167E
Range Deleting
binary search
,
combinatorics
,
data structures
,
two pointers
2100
x2553
1166A
Silent Classroom
combinatorics
,
greedy
900
x14010
1153F
Serval and Bonus Problem
combinatorics
,
dp
,
math
,
probabilities
2600
x763
1151F
Sonya and Informatics
combinatorics
,
dp
,
matrices
,
probabilities
2300
x1149
1151E
Number of Components
combinatorics
,
data structures
,
dp
,
math
2100
x3049
1140E
Palindrome-less Arrays
combinatorics
,
divide and conquer
,
dp
2200
x1897
1118F2
Tree Cutting (Hard Version)
combinatorics
,
dfs and similar
,
dp
,
trees
2700
x517
1111D
Destroy the Colony
combinatorics
,
dp
,
math
2600
x926
1109D
Sasha and Interesting Fact from Graph Theory
brute force
,
combinatorics
,
dp
,
math
,
trees
2400
x1272
1105C
Ayoub and Lost Array
combinatorics
,
dp
,
math
1500
x10176
1102E
Monotonic Renumeration
combinatorics
,
sortings
1700
x5701
1097G
Vladislav and a Great Legend
combinatorics
,
dp
,
trees
3000
x688
1097F
Alex and a TV Show
bitmasks
,
combinatorics
,
number theory
2500
x1216
1096E
The Top Scorer
combinatorics
,
dp
,
math
,
probabilities
2500
x913
1096B
Substring Removal
combinatorics
,
math
,
strings
1300
x10372
1091D
New Year and the Permutation Concatenation
combinatorics
,
dp
,
math
1700
x6617
1089I
Interval-Free Permutations
combinatorics
2600
x369
1085G
Beautiful Matrix
combinatorics
,
data structures
,
dp
2900
x508
1084C
The Fair Nut and String
combinatorics
,
dp
,
implementation
1500
x7622
1081C
Colorful Bricks
combinatorics
,
dp
,
math
1500
x7066
←
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Codeforces Round 950 (Div. 3)
24:17:49
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graphs
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