Array difference P46584


Statement
 

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Write a function that returns a sorted vector with the difference of the sorted vectors v1 and v2. The result must have the elements in v1 that are not in v2, without repetitions. For instance, the result of the difference of a vector with 1, 2, 2, 5, 5 and 7 and a vector with 2, 3, 3 and 7 is a vector with 1 and 5.

Interface

C++
vector<double> difference(const vector<double>& v1, const vector<double>& v2);
Java
public static double[] difference(double[] v1, double[] v2);
Python
difference(v1, v2) # returns list
 
difference(v1: list, v2: list) -> list

Observation You only need to submit the required procedure; your main program will be ignored.

Information
Author
Salvador Roura
Language
English
Translator
Carlos Molina
Original language
Catalan
Other languages
Catalan
Official solutions
C++ Java Python
User solutions
C++ Python