using static System.Console ;
using static System.Math ;
public class Program {
public static void Main( ) {
var maxAltura = - 1.0 ;
for ( int i = 0 ; i < 10 ; i++ ) {
WriteLine( "Qual a sua altura: " ) ;
double altura;
if ( double .TryParse ( ReadLine( ) , out altura) && altura > 0 ) maxAltura = Max( maxAltura, altura) ;
else i--;
}
WriteLine( maxAltura) ;
}
}
//https://pt.stackoverflow.com/q/320125/101
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