Calculate the distance between two points using hdoj 2001

Calculate the distance between two points

Time Limit: 2000/1000 MS (Java/others) memory limit: 65536/32768 K (Java/Others)
Total submission (s): 94573 accepted submission (s): 36296


Problem description

Input two-point coordinates (x1, Y1), (X2, Y2), calculate and output the distance between two points.

Input

There are multiple groups of input data. Each group occupies one row and consists of four real numbers, representing X1, Y1, X2, and Y2 respectively. Data is separated by spaces.

Output

For each group of input data, a row is output, and the result is retained with two decimal places.

Sample Input

 
0 0 0 10 1 1 0
 

 

Sample output

 
1.001.41
 

 

 

 
# Include <stdio. h> # include <math. h> int main () {float X1, Y1, X2, Y2, result; while (scanf ("% F", & X1, & Y1, & X2, & Y2 )! = EOF) {result = SQRT (x1-x2) * (x1-x2) + (y1-y2) * (y1-y2); printf ("%. 2f \ n ", result);} return 0 ;}