제출 #814622

#제출 시각아이디문제언어결과실행 시간메모리
814622Hanksburger서열 (APIO23_sequence)C++17
7 / 100
77 ms11588 KiB
#include "sequence.h"
#include <bits/stdc++.h>
using namespace std;
int freq[500005];
vector<int> b;
int sequence(int n, vector<int> a)
{
    for (int i=0; i<n; i++)
        freq[a[i]]++;
    b=a;
    sort(b.begin(), b.end());
    int cnt=1, ans=0;
    for (int i=(n-1)/2; i<n; i++)
        ans=max(ans, freq[b[i]]);
    for (int i=1; i<n; i++)
    {
        if (a[i]==a[i-1])
            cnt++;
        else
        {
            ans=max(ans, cnt);
            cnt=1;
        }
    }
    ans=max(ans, cnt);
    return ans;
}
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