Submission #884064

#	Time	Username	Problem	Language	Result	Execution time	Memory
884064		vjudge1	Bubble Sort 2 (JOI18_bubblesort2)	C++17	22 / 100	345 ms	6544 KiB

bubblesort2

#include "bubblesort2.h"
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <algorithm>
#include <iostream>
#include <queue>
using namespace std;
using namespace __gnu_pbds;
typedef tree<pair<int , int> , null_type, less<pair<int , int>>, rb_tree_tag, tree_order_statistics_node_update> orderedSet;

std::vector<int> countScans(std::vector<int> a,std::vector<int> X,std::vector<int> V){
	int Q=X.size();
	int n = a.size();
	std::vector<int> answer(Q);

    priority_queue<int> q[101];

    orderedSet s;
    for (int i = 0; i < n; i++)
    {
        s.insert ({a[i] , i});
        q[a[i]].push(i);
    }


    for (int j = 0; j < Q; j++)
    {
        s.erase({a[X[j]] , X[j]});
        a[X[j]] = V[j];
        s.insert({a[X[j]] , X[j]});
        q[a[X[j]]].push(X[j]);
        for (int val = 1; val <= 100; val++)
        {
            while (q[val].size() && a[q[val].top()] != val) q[val].pop();
            if (q[val].size())
            {
                answer[j] = max(answer[j] , q[val].top() - (int)s.order_of_key({val, q[val].top()}));
            }
        }
    }

	return answer;
}

• Subtask 1: 0 / 17
• Subtask 2: 0 / 21
• Subtask 3: 22 / 22
• Subtask 4: 0 / 40