水题啊~~~
/* THE PROGRAM IS MADE BY PYY */ /*----------------------------------------------------------------------------// http://acm.hdu.edu.cn/showproblem.php?pid=2001 计算两点间的距离 Date : 2011/2/27 Thursday Begin : 15:00 End : 15:18 //----------------------------------------------------------------------------*/ #include <iostream> #include <cmath> #include <stdlib.h> #include <iomanip> #define powerp(a, b) (abs(a - b)*abs(a - b)) using namespace std; int main() { double a, b, c, d; while (cin >> a >> b >> c >> d) { cout << setprecision(2) << fixed << sqrt(powerp(a, c) + powerp(b, d)) << endl; } return 0; }
======================================原题如下======================================
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 33635 Accepted Submission(s): 12588
Problem Description 输入两点坐标(X1,Y1),(X2,Y2),计算并输出两点间的距离。Input 输入数据有多组,每组占一行,由4个实数组成,分别表示x1,y1,x2,y2,数据之间用空格隔开。
Output 对于每组输入数据,输出一行,结果保留两位小数。
Sample Input 0 0 0 1 0 1 1 0
Sample Output 1.00 1.41
Author lcy
Source C语言程序设计练习(一)
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