Who’s in the Middle
Problem Description
FJ is surveying his herd to find the most average cow. He wants to
know how much milk this ‘median’ cow gives: half of the cows give as
much or more than the median; half give as much or less.Given an odd number of cows N (1 <= N < 10,000) and their milk output
(1..1,000,000), find the median amount of milk given such that at
least half the cows give the same amount of milk or more and at least
half give the same or less.
Input
Line 1: A single integer N
Lines 2..N+1: Each line contains a single integer that is the milk output of one cow.
Output
- Line 1: A single integer that is the median milk output.
Sample Input
5
2
4
1
3
5
S
Sample Output
3
package hlh;
import java.util.Arrays;
import java.util.Scanner;
public class p1157 {
/**
* @author 胡龙华
*/
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while(sc.hasNext()){
int n = sc.nextInt();
int a [] = new int [n];
for(int i=0;i<n;i++){
a[i] = sc.nextInt();
}
Arrays.sort(a);
System.out.println(a[n/2]);
}
}
}