#include <iostream>
using namespace std;
int main() {
int a,b,c;
cout << " Ingrese tres numeros. ";
cin >>a>>b>>c = (a+b > c) + (a+c > b) + (b+c >a);
switch(num) {
case true:
cout << num << " forma un triangulo./n ";
break;
switch (a+b>c)
cout << " es escaleno";
switch (a=b=c)
cout << "es equilatero";
switch(a==b==c)
cout<<"es isosseles";
case false:
cout << num << " no forma un triangulo/n ";
break;
}
cin.ignore();
cin.get();
}
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