Statistical measures P59282


Statement
 

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Write a program to compute the most common statistical measures (minimum, maximum and average) of several integer numbers. These numbers are known increasingly. At every moment, it is also possible to delete the smallest element.

Input

Input consists of a sequence of (possibly, many) numbers, together with deleting instructions, as can be seen in the sample input. The numbers may be repeated. Deleting means removing the smallest element (one instance of it, if it is repeated). If there are no elements, deleting does nothing.

Output

After every instruction of the input, print the minimum, maximum and average of the current elements with four digits after the decimal point, or tell that there are no elements. Follow the format of the sample output.

Public test cases
  • Input

    number 3
    number 2
    number 3
    delete
    number 97
    delete
    delete
    delete
    delete
    number -23
    delete
    

    Output

    minimum: 3, maximum: 3, average: 3.0000
    minimum: 2, maximum: 3, average: 2.5000
    minimum: 2, maximum: 3, average: 2.6667
    minimum: 3, maximum: 3, average: 3.0000
    minimum: 3, maximum: 97, average: 34.3333
    minimum: 3, maximum: 97, average: 50.0000
    minimum: 97, maximum: 97, average: 97.0000
    no elements
    no elements
    minimum: -23, maximum: -23, average: -23.0000
    no elements
    
  • Information
    Author
    Salvador Roura
    Language
    English
    Translator
    Salvador Roura
    Original language
    Catalan
    Other languages
    Catalan
    Official solutions
    C++ Python
    User solutions
    C++ Python