제출 #696924

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
696924		tamthegod	Izbori (COCI22_izbori)	C++17	25 / 110	3064 ms	9292 KiB

Main

// Make the best become better
// No room for laziness
#include<bits/stdc++.h>

#define int long long
#define pb push_back
#define fi first
#define se second
using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int maxN = 2e5 + 5;
const int mod = 1e9 + 7;
const ll oo = 1e18;
int n, a[maxN];
vector<int> pos[maxN];
const int block_size = 2000;
void ReadInput()
{
    cin >> n;
    vector<int> vc;
    for(int i=1; i<=n; i++)
    {
        cin >> a[i];
        vc.pb(a[i]);
    }
    sort(vc.begin(), vc.end());
    vc.erase(unique(vc.begin(), vc.end()), vc.end());
    for(int i=1; i<=n; i++)
        a[i] = upper_bound(vc.begin(), vc.end(), a[i]) - vc.begin();
    for(int i=1; i<=n; i++)
        pos[a[i]].pb(i);
}
void Solve()
{
    int res = 0;
    for(int i=1; i<=n; i++)
    {
        map<int, int> mp;
        int _max = 0;
        for(int j=i; j<=n; j++)
        {
            mp[a[j]]++;
            _max = max(_max, mp[a[j]]);
            if(_max > (j - i + 1) / 2) res++;
        }
    }
    cout << res;
}
int32_t main()
{
    //freopen("sol.inp", "r", stdin);
    //freopen("sol.ans", "w", stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    ReadInput();
    Solve();
}

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 0 / 15
• Subtask 4: 0 / 70