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 == 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;
}