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