Harmonic numbers (1) P59539


Statement
 

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Write a program that reads a number nn and prints the nn-th harmonic number, defined as Hn=1/1+1/2+⋯+1/nH_n = 1/1 + 1/2 + \cdots + 1/n.

Input

Input consists of a natural number nn.

Output

Print HnH_n with 4 digits after the decimal point.

Public test cases

  • Input

    2

    Output

    1.5000

  • Input

    0

    Output

    0.0000

  • Input

    7

    Output

    2.5929
    • Information
    Author
    Salvador Roura
    Language
    English
    Translator
    Salvador Roura
    Original language
    Catalan
    Other languages
    Catalan
    Official solutions
    C++ Java Python
    User solutions
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