Length of the segment
Execution time limit is 1 second
Runtime memory usage limit is 64 megabytes
Given the coordinates of the endpoints of a line segment, x1, y1, x2, y2, determine its length.
Input
Four integers: x1, y1, x2, y2.
Constraints: -1000 < x1, y1, x2, y2 < 1000.
Output
A single real number representing the length of the segment, rounded to two decimal places.
Examples
Input #1
Answer #1
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