一直60分，求改正

wczxluo @ 2023-07-26 15:14:25

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a[500001];
    int n;int m;
    scanf("%d%d",&n,&m);
    for(int i=0;i<n;i++)
    {
        scanf("%d",&a[i]);
    }
    sort(a,a+n);
    cout<<a[m];
    return 0;
 } 

by Henry2012 @ 2023-07-26 15:21:01

数组开小了

by Henry2012 @ 2023-07-26 15:21:42

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a[5000001];
    int n;int m;
    scanf("%d%d",&n,&m);
    for(int i=0;i<n;i++)
    {
        scanf("%d",&a[i]);
    }
    sort(a,a+n);
    cout<<a[m];
    return 0;
 } 

by Henry2012 @ 2023-07-26 15:22:28

不过改了也会TLE,这题要用O(n)写

by __ii__ @ 2023-07-26 15:41:13

用分治试下。

by IAKIOI123 @ 2023-08-03 12:09:12

开O2就好了