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Jun 23rd, 2017
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C++ 0.46 KB | None | 0 0
  1. int main(int argc, char *argv[])
  2. {
  3.     int lineas, espacios=0, asteriscos=-1, n=0;
  4.     do{
  5.         cout<<"Introduzca un número de líneas entre 1 y 20"<<endl;
  6.         cin>>lineas;
  7.         }while(lineas<1||lineas>>20);
  8.     for(n;n<=lineas;n++){
  9.        for(espacios;espacios<=(lineas-1);espacios++) cout<<" ";
  10.        for (asteriscos;asteriscos<=(asteriscos+2);asteriscos+2) cout<<"*";
  11.        cout<<endl;
  12.        }  
  13.     system("PAUSE");
  14.     return EXIT_SUCCESS;
  15. }
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