char shapeTriangle(int x, int y, int z)
{

char type;

if (x == y && y == z && x == z)

type = 'E';

else

......

return type;
}

void printInfo(int x, int y, int z, char type)
{

shapeTriangle(x, y, z); // function call together with 3 user inputs

switch(type)
{

case 'E' : cout << "==> Equilateral triangle" << endl;

......

}