Submission #1284862

#	Time	Username	Problem	Language	Result	Execution time	Memory
1284862		Muhammad_Aneeq	Gift Exchange (JOI24_ho_t4)	C++20	10 / 100	99 ms	5908 KiB

Main

#include <bits/stdc++.h>
using namespace std;
inline void solve()
{
    int n;
    cin>>n;
    int a[n];
    for (auto& i:a)
        cin>>i;
    int b[n];
    for (auto&i:b)
        cin>>i;
    int q;
    cin>>q;
    while (q--)
    {
        int l,r;
        cin>>l>>r;
        l--;r--;
        set<int>s;
        for (int i=l;i<=r;i++)
            s.insert(a[i]);  
        bool w=1;
        for (int i=l;i<=r;i++)
        {
            bool pr=(s.find(a[i])!=s.end());
            s.erase(a[i]);
            auto z=s.lower_bound(b[i]);
            if (z!=s.end())
                s.erase(*z);
            else
            {
                w=0;
                break;
            }
            if (r)
                s.insert(a[i]);
        }
        cout<<(w?"Yes":"No")<<endl;
    }
}
int main()
{
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    int t=1;
    for (int i=1;i<=t;i++)
    {
        solve();
    }
}

• Subtask 1: 0 / 4
• Subtask 2: 0 / 5
• Subtask 3: 10 / 10
• Subtask 4: 0 / 31
• Subtask 5: 0 / 8
• Subtask 6: 0 / 12
• Subtask 7: 0 / 18
• Subtask 8: 0 / 12