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import fiji.io.*;
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class ContaParole {
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	public static int parole(String s) {
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		int contparole;
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		boolean lettera;
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		int i;
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		int l;
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		char c = ' ';
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		contparole = 0;
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		lettera = true;
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		i = 0;
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		l = s.length() - 1;
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		while ( l >= 0 ) {
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			if (s.charAt(i) ==c ){
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				l--;
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				contparole ++;
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			}else{
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				i++;
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				contparole = 0;
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				l--;
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			}
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		}
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		return contparole;
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	}
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	public static void main(String[] args) {
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		String s;
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		int contparole;
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		System.out.println("Scrivi una frase:");
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		s = Lettore.in.leggiLinea();
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		contparole = ContaParole.parole(s);
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		System.out.println(contparole);
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	}
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}