#include<iostream> using namespace std; int main() { int a, b, c; // 输入三条边 cin >> a >> b >> c; // 判断是否能构成三角形：任意两边之和大于第三边 if ((a + b > c) && (a + c > b) && (b + c > a)) { if (a == b && b == c) { cout << "Equilateral Triangle" << endl; } else if (a == b || a == c || b == c) { cout << "Isosceles Triangle" << endl; } else if ((a * a + b * b == c * c) || (a * a + c * c == b * b) || (b * b + c * c == a * a)) { cout << "Right Triangle" << endl; } else { cout << "Simple Triangle" << endl; } } else { cout << "No" << endl; } return 0; }