题解 | 取近似值
using System;
public class Program {
public static void Main() {
string[] T = Console.ReadLine().Split('.');
int L = int.Parse(T[0]);
double R = double.Parse("0." + T[1]);
if (R >= 0.5) {
L = L + 1;
}
Console.WriteLine(L);
}
}
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