[백준] 10101번 : 삼각형 외우기 - C++

https://www.acmicpc.net/problem/10101

#include <iostream>

using namespace std;

int main() {
    int a,b,c;
    cin>>a>>b>>c;
    int sum=a+b+c;
    if(sum==180){
        if(a==60 && b==60 && c==60) cout<<"Equilateral";
        else if(a==b || b==c || a==c) cout<<"Isosceles";
        else cout<<"Scalene";
    }
    else cout<<"Error";
}