记得不要用cin，cout

yu_tong @ 2020-05-15 15:34:47

by disangan233 @ 2020-05-15 15:41:26

@yu_tong 能过的。

#include<iostream>
#include<algorithm>
using namespace std;
int n,k,a[5000005];
int main()
{
    ios::sync_with_stdio(0);
    cin>>n>>k;
    for(int x,i=1;i<=n;i++) cin>>a[i];
    nth_element(a+1,a+k+1,a+n+1);
    cout<<a[k+1];
}

by 已注销%Jm9VScx @ 2020-05-15 15:44:03

快读了解一下？

by 傅天宇 @ 2020-05-15 15:45:50

@yu_tong 谢谢提醒——来自此题最优解rank4的蒟蒻。/kk

by SKYFISHzzZ @ 2020-05-15 15:49:06

@唯有呵呵 我仿佛看到了恶意提交可还行

by 傅天宇 @ 2020-05-15 15:50:19

hhh，别人代码 你的代码

by SKYFISHzzZ @ 2020-05-15 16:07:45

我同学T了个点帮忙看下，还被我改炸了（问就是我菜）QAQ

by hanzhongtlx @ 2020-05-15 16:19:39

wee

by 就皮这一下 @ 2020-05-15 16:28:52

@zycany 裸的 sort 会炸，但是用nth_elememt稳稳的

by kradcigam @ 2020-05-15 16:40:24

zyx

by houpingze @ 2020-05-15 16:52:51

OK~