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Problems

Implementation
Difficulty
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1965
Line
Very easy
1966
A big plus
1968
Balls
Easy
1970
David Copperfield is resting
Very easy
1974
Random Acts of Kindness Day
Very easy
1983
Ricefield
Very easy
1987
The Next Permutation
2011
Mutation
Medium
2014
Lucky Number
Very easy
2036
Age
Very easy
2042
Monthly and quarterly
2043
Quarter
2044
Month
2046
y =| cos(2x)|
Medium
2047
Almost Union-Find
Very easy
2048
Broken Keyboard (a.k.a. Beiju Text)
Very easy
2049
Cake Cutting
Very hard
2051
Easy Problem from Rujia Liu?
2052
Fast Matrix Operations
Very easy
2061
Young Programmers
Easy
2063
Vasya`s arithmetic
Easy
2064
Vasya`s arithmetic 2
Easy
2068
Smart dog
Easy
2072
Secret message
Medium
2080
Include directives
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