#include <studio.h>
void main
int a, b, c;
scanf("%d,%d,%d", &a, &b, &c);
if(a+b>c&&a+c>b&&b+c>a;
if(a==b&&a==c)
printf("equilateral triangle\n")
else if (a==b||a==c||b==c)
printf("isoceles triangle\n")
else printf("triangle\n")
else printf("non-triangle\n")
system("PAUSE>NUL")
return 0;
来源:https://www.cnblogs.com/zhang-shu-heng/p/11679898.html