第二题AC代码（参考）：import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int k = sc.nextInt(); int m = sc.nextInt(); sc.close(); int minTime = 0; if(n >= m) { minTime = n * k / m; if((n * k) % m != 0) { minTime++; } } else { minTime = k; } System.out.println(minTime); }}