Submission #747446

#	Time	Username	Problem	Language	Result	Execution time	Memory
747446		vjudge1	Kralj (COCI16_kralj)	C++17	56 / 140	2084 ms	50324 KiB

kralj

#include "bits/stdc++.h"
#define ll long long
using namespace std;
const ll mod = 1000000007;

vector<int> v[500001];
vector<int> vec;
multiset<int> s;
int ans;

void solve() {
    for(int i : vec) {
        auto it = s.upper_bound(i);
        if(it != s.end()) {
            ans++;
            s.erase(it);
        }
        else
            s.erase(s.begin());
    }
    vec.clear();
}

signed main() {
    int n;
    cin >> n;
    int a[n], b[n], c[n], be[n] = {}, en[n] = {};
    for(int i = 0; i < n; i++) {
        cin >> a[i];
        be[a[i] - 1]++;
    }
    int x = 0;
    for(int i = 0; i < n; i++) {
        if(be[i]) {
            en[(i + be[i] - 1) % n]++;
            if(i + be[i] - 1 >= n)
                x++;
        }
    }
    int st = 0;
    for(int i = 0; i < n; i++) {
        x += (be[i] > 0);
        if(be[i] && x == 1)
            st = i;
        x -= en[i];
    }
    for(int i = 0; i < n; i++)
        cin >> b[i];
    for(int i = 0; i < n; i++) {
        cin >> c[i];
        v[a[i] - 1].push_back(c[i]);
    }
    for(int i = 0; i <= n; i++) {
        if(be[st] || i == n)
            solve();
        if(i == n)
            break;
        for(int j : v[st])
            s.insert(j);
        vec.push_back(b[st]);
        st++;
        st %= n;
    }
    cout << ans;

    return 0;
}

• Subtask 1: 56 / 140