ex03-02.cpp

数据结构常用算法合集

//EX03-02.cpp
#include <iostream.h>
#include <math.h>	//sqrt()
#include <conio.h>
void main()
{ float a,b,c,s,area;
  cout << "Enter a,b,c=";
  cin >> a >> b >> c;
  if ((a+b > c) && (b+c>a) && (a+c >b))
  { s = (a+b+c)/2;
    area = sqrt(s*(s-a)*(s-b)*(s-c));
    cout << "area=" << area;
  }
  else
  cout <<"It is not an triangle.";
  getch();
}