题解 | #三角形判断#

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