P1923超时求优化

Cu_lly888_6_5_A6 @ 2024-10-13 13:36:20

#include<bits/stdc++.h>
using namespace std;
int main(){
    long long a,b,c[1000000005];
    cin>>a>>b;
    for(int i=1 ; i<=a ; i++){
        cin>>c[i];
    }
    sort(c,c+a+1);
    cout<<c[b+1];
    return 0;
}

by Moco_jof @ 2024-10-13 13:47:36

要用二分

by Moco_jof @ 2024-10-13 13:50:58

哦，我手写的

by Moco_jof @ 2024-10-13 13:51:24

#include<bits/stdc++.h>
using namespace std;
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    long long a,b,c[1000000005];
    cin>>a>>b;
    for(int i=1 ; i<=a ; i++){
        cin>>c[i];
    }
    sort(c,c+a+1);
    cout<<c[b+1];
    return 0;
}

by Moco_jof @ 2024-10-13 13:51:55

关闭一下输出流能AC

by Moco_jof @ 2024-10-13 13:52:43

或者你用scanf和printf

by Moco_jof @ 2024-10-13 13:53:16

或者用快读快写

by Cu_lly888_6_5_A6 @ 2024-10-13 18:55:27

@Moco_jof ok谢谢