题解 | 三角形判断

#include <stdio.h>
int main()
{
   int a = 0;
   int b = 0;
   int c = 0;
   while (scanf("%d %d %d", &a, &b, &c) == 3) 
   { 
        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;
}