//Descripcion: Implementa una calculadora simple de cuatro operaciones
//Autor: Anderson Ponciano 
//Fecha: 12/05/20
#include <iostream>
using namespace std;
int main ()
{
float a, b;
char oper;
system ("color f0");
cout << "Ingrese los Operandos: ";
cin >> a >> b;
do
{
cout << "Escriba las operaciones a realizar ( +, -, *, / ): ";
cin >> oper;
if(oper!='+' && oper!='-' && oper!='*' && oper !='/')
cout << "Operacion Incorrecta\n";
}
while(oper!='+' && oper!='-' && oper!='*' && oper !='/');
if( oper == '/' )
for( ; !b; )
{ 
cout << "No es posible la division entre 0\n";
cout << "Operando: ";
cin >> b;
}
cout << a << " " << oper << " " << b << " = ";
switch(oper)
{ 
  case '+': cout << a + b << "\n";
	break;
  case '-': cout << a - b << "\n";
	break;
  case '*': cout << a * b << "\n";
	break;
  case '/': cout << a / b << "\n";
}
cin.ignore();
cin.get();
return 0;
}

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