题解 | #三角形判断#
三角形判断
https://www.nowcoder.com/practice/689ec1e742394e09b1059556fc167b65
#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>0&&b>0&&c>0) { if((a+b>c)&&(a-b<c)&&(b-a<c)) { if(a==b||b==c||a==c) { if(a==b&&b==c) { printf("Equilateral triangle!\n"); } else { printf("Isosceles triangle!\n"); } } else { printf("Ordinary triangle!\n"); } } else { printf("Not a triangle!\n"); } } else { printf("Not a triangle!\n"); } } return 0; }