bool()이용_삼각형 둘레길이 구하기

#include <iostream>
using namespace std;
int main() {
 int edge1, edge2, edge3;
 int sum=0;

 cout<<"Enter three edges : "; cin>>edge1>>edge2>>edge3;

 bool Valid = ((edge1+edge2)>edge3) && ((edge2+edge3)>edge1) && ((edge1+edge3)>edge2);

 if(Valid) {
  sum=edge1+edge2+edge3;
  cout<<"The perimeter is "<<sum<<endl;
 }else
  cout<<"valid is not available."<<endl;

 
 return 0;
}