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. InputThe first line would contain one integer n (2?≤? N? ≤?105)-the number of nodes in the apple tree. The second line would contain n integers a 1,? a 2,?...,? a n (1?≤? A i ? ≤?107)-the number of apples on each node of the tree .The third line would contain n?-? 1 integers p2,? P3,?...,? Pn (1?≤? Pi? ≤? N)-the parent of each node of

How to get started with Apple's Swift programming language (Chinese version) 2. How to get started with swift Apple Swift programming language tutorial [Chinese version] Directory 1 Overview 2 Swift getting started 3 simple value 4 control flow 5. Functions and closures 6 objects and Classes 7 enumeration and Structure Next article:

conversion from the last line? There is also an easier way to include values in a string: Write the value in parentheses, and precede the parentheses with a backslash (""). For example:Let apples = 3Let oranges = 5//by GasheroLet applesummary = "I has \ (apples) apples."Let fruitsummary = "I had \ (apples + oranges) pieces of fruit." Note Practice Use () to include a floating-point number to calculate to a string, and to include someone's name to greet. Create an arra