题解 | #三角形判断#

#define _CRT_SECURE_NO_WARNINGS
#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||b == c|| a == c)
        {
            printf("Isosceles triangle!\n");
        }
        else
        {
            printf("Ordinary triangle!\n");
        }
    }
    else
        printf("Not a triangle!\n");
}
    return 0;
}