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- // Invertir un numero
- #include<iostream>
- #include<cmath>
- using namespace std;
- int main()
- {
- int n;
- cin>>n;
- int aux = n;
- // n = 18454 -> n'= 45481
- int digito;
- int cant_digitos = 0;
- int acumulador = 0;
- // Contar digitos de n
- while(aux>0){
- cant_digitos++;
- aux = aux/10;
- }
- cout<<cant_digitos<<endl;
- while(n>0){
- digito = n%10;
- acumulador = acumulador + digito*pow(10,cant_digitos-1);
- cant_digitos--;
- n = n/10;
- }
- cout<<acumulador<<endl;
- }
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