为啥后几个样例会RE？

HITvici @ 2024-03-09 21:24:48

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int a[100000]={0};
    deque<int> q;
    int n,k;
    cin>>n>>k;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    for(int i=1;i<=n;i++)
    {
        while(!q.empty()&&a[q.back()]>a[i])//a[i]相当于是新来的元素
            q.pop_back();
        q.push_back(i);
        if(i>=k)
        {
            while(!q.empty()&&q.front()<=i-k)
                q.pop_front();
            cout<<a[q.front()]<<' ';
        }
    }
    cout<<'\n';
    while(!q.empty())
        q.pop_front();
    for(int i=1;i<=n;i++)
    {
        while(!q.empty()&&a[q.back()]<a[i])//a[i]相当于是新来的元素
            q.pop_back();
        q.push_back(i);
        if(i>=k)
        {
            while(!q.empty()&&q.front()<=i-k)
                q.pop_front();
            cout<<a[q.front()]<<' ';
        }
    }

    return 0;
}

by gavinliu266 @ 2024-03-09 21:28:06

a数组和deque开在main()函数外面

by gavinliu266 @ 2024-03-09 21:28:36

建议用scanf与printf

by gavinliu266 @ 2024-03-09 21:29:27

a数组开 1 \times 10^6 + 5

by Composite_Function @ 2024-03-09 21:38:20

#include <bits/stdc++.h>
using namespace std;

int a[1000001]={0};

int main()
{
    deque<int> q;
    int n,k;
    cin>>n>>k;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    for(int i=1;i<=n;i++)
    {
        while(!q.empty()&&a[q.back()]>a[i])//a[i]相当于是新来的元素
            q.pop_back();
        q.push_back(i);
        if(i>=k)
        {
            while(!q.empty()&&q.front()<=i-k)
                q.pop_front();
            cout<<a[q.front()]<<' ';
        }
    }
    cout<<'\n';
    while(!q.empty())
        q.pop_front();
    for(int i=1;i<=n;i++)
    {
        while(!q.empty()&&a[q.back()]<a[i])//a[i]相当于是新来的元素
            q.pop_back();
        q.push_back(i);
        if(i>=k)
        {
            while(!q.empty()&&q.front()<=i-k)
                q.pop_front();
            cout<<a[q.front()]<<' ';
        }
    }

    return 0;
}

就好了。

by HITvici @ 2024-03-09 21:47:22

@gavinliu266 解决了，谢谢大佬

by HITvici @ 2024-03-09 21:47:44

@Composite_Function 谢谢大佬，问题解决了