POJ 2388 Who's in the Middle(水题)

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#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
vector<int> v;
int main(){
	int n;
	cin >> n;
	v.resize(n);
	for(int i = 0; i < n; ++i)
		cin >> v[i];
	sort(v.begin(), v.end());
	cout << v[(n - 1)/2] << endl;
	return 0;
}