1 solutions

  • 2
    @ 2024-10-7 9:33:20
    #include<bits/stdc++.h>
    using namespace std;
    const int N=1e5+10;
    int a[N];
    int main()
    {
        int n;
        cin>>n;
        for(int i=1;i<=n;i++)
        {
            cin>>a[i];
        }
        int q;
        cin>>q;
        for(int i=1;i<=q;i++)
        {
            int x;
            cin>>x;
            int l=1,r=n;
            while(l<r)
            {
                int mid=(l+r+1)/2;
                if(a[mid]<=x) l=mid;
                else r=mid-1;
            }
            if(a[r]!=x) cout<<-1<<" ";
            else cout<<r<<" ";
        }
        return 0;
    }
    
    • 1

    Information

    ID
    139
    Time
    1000ms
    Memory
    128MiB
    Difficulty
    3
    Tags
    (None)
    # Submissions
    74
    Accepted
    26
    Uploaded By