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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int numero; // global variable disponible a cualquier función
  6.  
  7. void funcion_1() {
  8.     numero += 10;
  9. }
  10.  
  11. void funcion_2() {
  12.     numero += 20;
  13. }
  14.  
  15. int main() {
  16.     numero = 200;
  17.     cout << numero << endl;
  18.  
  19.     numero = 100;
  20.     funcion_1();
  21.     cout << numero << endl;
  22.  
  23.     numero = 10;
  24.     funcion_2();
  25.     cout << numero << endl;
  26.  
  27.     return 0;
  28. }
Success #stdin #stdout 0s 15240KB
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Standard input is empty
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200
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https://ideone.com/m1h56V
14/09/2017-005
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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