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import java.util.Scanner; public class Main20 { public static void main(String[] args) { Scanner input = new Scanner(System.in); while (input.hasNext()) { int n = input.nextInt(); int k = input.nextInt(); int time = 2; if (n < k) { System.out.println(time); }else{ if (2*n %k == 0) { time = 2*n/k; }else{ time = 2*n/k+1; } System.out.println(time); } } input.close(); } }
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原文地址:http://www.cnblogs.com/airycode/p/5486181.html