import java.util.Scanner;
import java.math.BigInteger;
class Main
{
public static void main(String[] args)
{
Scanner cin = new Scanner(System.in);
int n, f;
int t = 1;
while (cin.hasNext()) {
n = cin.nextInt();
f = cin.nextInt();
if (n == 0 && f == 0) break;
BigInteger a = BigInteger.valueOf(0);
while (n-- > 0) {
BigInteger b = cin.nextBigInteger();
a = a.add(b);
}
System.out.print("Bill #" + (t++) + " costs " + a.toString() + ": each friend should pay ");
BigInteger aver = a.divide(BigInteger.valueOf(f));
System.out.println(aver.toString());
System.out.println();
}
}
}
UVa10925 - Krakovia
最新推荐文章于 2017-01-14 20:28:09 发布