Created
April 27, 2013 23:02
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| def new(): | |
| return [] | |
| def apilar(pila,elem): | |
| pila.append(elem) | |
| def desapilar(pila): | |
| return(pila.pop()) | |
| def invertir(pila): | |
| return (pila.reverse()) | |
| def tope(pila): | |
| return pila[len(pila)-1] | |
| def esvacia(pila): | |
| if len(pila)==0: | |
| return 'true' | |
| else: | |
| return 'false' |
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