Submission #982263

#	Time	Username	Problem	Language	Result	Execution time	Memory
982263		vjudge1	Sequence (APIO23_sequence)	C++17	28 / 100	2067 ms	29692 KiB

sequence

#include "sequence.h"
#include<bits/stdc++.h>
using namespace std;
priority_queue<int>pql;
priority_queue<int,vector<int>,greater<>>pqu;
map<int,int>st2;
void balance(){
    if(pql.size()<pqu.size())
        pql.push(pqu.top()),pqu.pop();
    if(pql.size()-pqu.size()>1)
        pqu.push(pql.top()),pql.pop();
}
int sequence(int N, std::vector<int> A) {
    int ans=1;
    for(int i=0;i<N;i++){
        st2.clear();
        while(pql.size())
            pql.pop();
        while(pqu.size())
            pqu.pop();
        pql.push(A[i]);
        st2[A[i]]++;
        for(int j=i+1;j<N;j++) {
            if(A[j]<=pql.top())
                pql.push(A[j]);
            else pqu.push(A[j]);
            balance();
            st2[A[j]]++;
            int a=pql.top();
            int b=(pql.size()==pqu.size()?pqu.top():a);
            ans=max(ans,st2[a]);
            ans=max(ans,st2[b]);
        }
    }
    return ans;
}

• Subtask 1: 11 / 11
• Subtask 2: 17 / 17
• Subtask 3: 0 / 7
• Subtask 4: 0 / 12
• Subtask 5: 0 / 13
• Subtask 6: 0 / 22
• Subtask 7: 0 / 18