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

    }
    
    
    
   
    return 0;
}