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Educational Codeforces Round 165 (Rated for Div. 2)
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Codeforces Round 942 (Div. 1)
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Codeforces Round 942 (Div. 2)
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chinese remainder theorem
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#
Name
1966A
Card Exchange
chinese remainder theorem
,
flows
,
greedy
,
string suffix structures
x12323
1770C
Koxia and Number Theory
brute force
,
chinese remainder theorem
,
math
,
number theory
1700
x8249
1748D
ConstructOR
bitmasks
,
chinese remainder theorem
,
combinatorics
,
constructive algorithms
,
math
,
number theory
2100
x2654
1665D
GCD Guess
bitmasks
,
chinese remainder theorem
,
constructive algorithms
,
games
,
interactive
,
math
,
number theory
2000
x3678
1536F
Omkar and Akmar
chinese remainder theorem
,
combinatorics
,
constructive algorithms
,
fft
,
games
,
geometry
,
math
,
meet-in-the-middle
,
string suffix structures
2600
x913
1500B
Two chandeliers
binary search
,
brute force
,
chinese remainder theorem
,
math
,
number theory
2200
x1983
1438C
Engineer Artem
2-sat
,
chinese remainder theorem
,
constructive algorithms
,
fft
,
flows
2000
x10145
1266A
Competitive Programmer
chinese remainder theorem
,
math
1000
x14969
1117E
Decypher the String
bitmasks
,
chinese remainder theorem
,
constructive algorithms
,
interactive
,
math
2200
x1443
1054H
Epic Convolution
chinese remainder theorem
,
fft
,
math
,
number theory
3500
x171
993E
Nikita and Order Statistics
chinese remainder theorem
,
fft
,
math
2300
x1336
919E
Congruence Equation
chinese remainder theorem
,
math
,
number theory
2100
x1819
906D
Power Tower
chinese remainder theorem
,
math
,
number theory
2700
x1966
896D
Nephren Runs a Cinema
chinese remainder theorem
,
combinatorics
,
math
,
number theory
2900
x516
722F
Cyclic Cipher
chinese remainder theorem
,
data structures
,
implementation
,
number theory
,
two pointers
2800
x469
687B
Remainders Game
chinese remainder theorem
,
math
,
number theory
1800
x5536
338D
GCD Table
chinese remainder theorem
,
math
,
number theory
2900
x1090
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