题解 | #三角形判断#

int main()
{
    int a = 0;
    int b = 0;
    int c = 0;
    while ((scanf ("%d %d %d",&a,&b,&c)) != EOF)
    {
        if ((a+b)>c && (a+c)>b && (b+c)>a)
        {
            if (a == b && b == c)
          {
            printf ("Equilateral triangle!\n");
          }
           else if (a == b || a == c || b == c)
          {
            printf ("Isosceles triangle!\n");
          }
           else 
          {
            printf ("Ordinary triangle!\n");
           }
        }
        else 
        {
            printf ("Not a triangle!\n");
        }
     }
    return 0;
}