Distance Between 2 Places


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You're creating travel software, and need to calculate the distance between 2 locations located at (x1, y1) and (x2, y2) on a 2D grid. You will be given a list of doubles as input in the following order: x1, y1, x2, y2. Calculate and print the distance between the cities, rounded to 3 decimal places.

For example, given {0.0, 5.5, -1.0, 3.5} as input, calculate the distance between (0.0, 5.5) and (-1.0, 3.5), which is sqrt(5) ≃ 2.23607, so you should print 2.236

simple-graph-of-line

Challenge

Print the distance between 2 locations to 3 decimal locations.

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Comments

  • thales  

    Jul 20, 12:54 PM

    Isnt there an esier way to round up numbers to n decimal places?

    a solution:
    my code

  • Bolke  

    Jul 29, 9:05 AM

    We have to make a precision, for which there is no method? That's brutal.

  • Bolke  

    Jul 29, 9:36 AM

    I finally got the precision done, but only by copying and pasting a solution for that issue from Quora. It really would be helpful if we were led to a solution, sometimes. Right now I don't feel I'm learning from this.

  • Learneroo  

    Jul 31, 5:22 PM

    In this case, Googling for how to round numbers would be good practice for real world programming.

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