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답안 #533584

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
533584 2022-03-06T10:55:53 Z topovik Izbori (COCI22_izbori) C++14
110 / 110
 1628 ms 32852 KB 
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define s second

using namespace std;

typedef long long ll;
typedef long double ld;

const ll oo = 1e18 + 7;

const ll N = 1e6 + 10;
const ll N1 = 2e5 + 10;
const ll M = 1e3 + 10;

vector <ll> ps[N];
ll b[N];
map <ll, ll> mp;
ll ans = 0;

int val[N];
int key[N];

int t;

void upd(int x, int y)
{
    x += N1;
    if (key[x] != t)
    {
        key[x] = t;
        val[x] = 0;
    }
    val[x] += y;
}

int value(int x)
{
    x += N1;
    if (key[x] != t)
    {
        key[x] = t;
        val[x] = 0;
    }
    return val[x];
}

int main()
{
    ios_base::sync_with_stdio(0);
    iostream::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    ll n;
    cin >> n;
    ll a[n];
    vector <ll> cmp;
    for (ll i = 0; i < n; i++) cin >> a[i], cmp.pb(a[i]);
    sort(cmp.begin(), cmp.end());
    cmp.resize(unique(cmp.begin(), cmp.end()) - cmp.begin());
    for (ll i = 0; i < n; i++) a[i] = lower_bound(cmp.begin(), cmp.end(), a[i]) - cmp.begin();
    for (ll i = 0; i < n; i++) ps[a[i]].pb(i);
    for (ll i = 0; i < n; i++)
    {
        t++;
        int nom_mx = N1;
        for (int j = i; j < min(n, i + M); j++)
        {
            upd(a[j], 1);
            if (value(a[j]) > value(nom_mx)) nom_mx = a[j];
            if (value(nom_mx) * 2 > (j - i + 1))
            {
                if (ps[nom_mx].size() <= M / 2) ans++;
            }
        }
    }
    for (ll i = 0; i < n; i++)
        if (ps[i].size() > M / 2)
    {
        for (ll j = 0; j < n; j++) b[j] = 0;
        for (auto j : ps[i]) b[j] = 1;
        t++;
        ll sum1 = 0;
        ll kol = 0;
        for (ll j = 0; j < n; j++)
        {
            sum1 += b[j];
            upd(sum1 * 2 - (j + 1), 1);
            if (sum1 * 2 - (j + 1) > 0) kol++;
        }
        ans += kol;
        ll c = 1;
        sum1 = 0;
        for (ll j = 0; j < n; j++)
        {
            sum1 += b[j];
            upd(sum1 * 2 - (j + 1), -1);
            if (sum1 * 2 - (j + 1) >= c) kol--;

            if (b[j] == 0)
            {
                c--;
                kol += value(c);
            }
            else
            {
                kol -= value(c);
                c++;
            }
            ans += kol;
        }
        cout << endl;
    }
    cout << ans;
}
/*
5 3
2 1 1 2 2 3
2 3 3 4 4 5
4 1 1 2 2 3 3 4 4 5
*/

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 23720 KB Output is correct
2 Correct 12 ms 23824 KB Output is correct
3 Correct 12 ms 23756 KB Output is correct
4 Correct 14 ms 23844 KB Output is correct
5 Correct 12 ms 23780 KB Output is correct
6 Correct 12 ms 23812 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 23720 KB Output is correct
2 Correct 12 ms 23824 KB Output is correct
3 Correct 12 ms 23756 KB Output is correct
4 Correct 14 ms 23844 KB Output is correct
5 Correct 12 ms 23780 KB Output is correct
6 Correct 12 ms 23812 KB Output is correct
7 Correct 13 ms 23884 KB Output is correct
8 Correct 11 ms 23836 KB Output is correct
9 Correct 20 ms 23872 KB Output is correct
10 Correct 19 ms 23844 KB Output is correct
11 Correct 19 ms 23912 KB Output is correct
12 Correct 18 ms 23912 KB Output is correct
13 Correct 18 ms 23900 KB Output is correct
14 Correct 19 ms 23836 KB Output is correct
15 Correct 21 ms 23804 KB Output is correct
16 Correct 18 ms 23884 KB Output is correct
17 Correct 18 ms 23828 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 672 ms 29184 KB Output is correct
2 Correct 870 ms 30608 KB Output is correct
3 Correct 542 ms 27832 KB Output is correct
4 Correct 918 ms 30724 KB Output is correct
5 Correct 946 ms 30652 KB Output is correct
6 Correct 1022 ms 31436 KB Output is correct
7 Correct 985 ms 31440 KB Output is correct
8 Correct 1041 ms 31496 KB Output is correct
9 Correct 1000 ms 31004 KB Output is correct
10 Correct 1022 ms 31040 KB Output is correct
11 Correct 910 ms 31728 KB Output is correct

Subtask #4
70.0 / 70.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 23720 KB Output is correct
2 Correct 12 ms 23824 KB Output is correct
3 Correct 12 ms 23756 KB Output is correct
4 Correct 14 ms 23844 KB Output is correct
5 Correct 12 ms 23780 KB Output is correct
6 Correct 12 ms 23812 KB Output is correct
7 Correct 13 ms 23884 KB Output is correct
8 Correct 11 ms 23836 KB Output is correct
9 Correct 20 ms 23872 KB Output is correct
10 Correct 19 ms 23844 KB Output is correct
11 Correct 19 ms 23912 KB Output is correct
12 Correct 18 ms 23912 KB Output is correct
13 Correct 18 ms 23900 KB Output is correct
14 Correct 19 ms 23836 KB Output is correct
15 Correct 21 ms 23804 KB Output is correct
16 Correct 18 ms 23884 KB Output is correct
17 Correct 18 ms 23828 KB Output is correct
18 Correct 672 ms 29184 KB Output is correct
19 Correct 870 ms 30608 KB Output is correct
20 Correct 542 ms 27832 KB Output is correct
21 Correct 918 ms 30724 KB Output is correct
22 Correct 946 ms 30652 KB Output is correct
23 Correct 1022 ms 31436 KB Output is correct
24 Correct 985 ms 31440 KB Output is correct
25 Correct 1041 ms 31496 KB Output is correct
26 Correct 1000 ms 31004 KB Output is correct
27 Correct 1022 ms 31040 KB Output is correct
28 Correct 910 ms 31728 KB Output is correct
29 Correct 995 ms 31732 KB Output is correct
30 Correct 178 ms 25676 KB Output is correct
31 Correct 403 ms 27456 KB Output is correct
32 Correct 869 ms 31744 KB Output is correct
33 Correct 393 ms 27668 KB Output is correct
34 Correct 410 ms 27840 KB Output is correct
35 Correct 267 ms 26572 KB Output is correct
36 Correct 153 ms 25548 KB Output is correct
37 Correct 234 ms 25864 KB Output is correct
38 Correct 911 ms 32476 KB Output is correct
39 Correct 923 ms 31904 KB Output is correct
40 Correct 929 ms 32232 KB Output is correct
41 Correct 919 ms 32160 KB Output is correct
42 Correct 919 ms 31996 KB Output is correct
43 Correct 943 ms 32384 KB Output is correct
44 Correct 961 ms 32332 KB Output is correct
45 Correct 971 ms 32272 KB Output is correct
46 Correct 944 ms 32228 KB Output is correct
47 Correct 946 ms 32352 KB Output is correct
48 Correct 1628 ms 32120 KB Output is correct
49 Correct 1552 ms 32108 KB Output is correct
50 Correct 1179 ms 32688 KB Output is correct
51 Correct 1214 ms 32852 KB Output is correct
52 Correct 893 ms 28976 KB Output is correct
53 Correct 895 ms 28732 KB Output is correct
54 Correct 1305 ms 32148 KB Output is correct