Submission #864034

#	Time	Username	Problem	Language	Result	Execution time	Memory
864034		Danilo21	Garden (JOI23_garden)	C++17	100 / 100	2083 ms	137820 KiB

garden

#include <bits/stdc++.h>

#define ll long long
#define ld long double
#define pb push_back
#define fi first
#define se second
#define en '\n'
#define sp ' '
#define tb '\t'
#define ri(n) int n; cin >> n
#define rl(n) ll n; cin >> n
#define rs(s) string s; cin >> s
#define rc(c) char c; cin >> c
#define rv(v) for (auto &x : v) cin >> x
#define pven(v) for (auto x : v) cout << x << en
#define pv(v) for (auto x : v) cout << x << sp; cout << en
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define yes cout << "YES" << en
#define no cout << "NO" << en
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
#define ssort(a, b) if (a < b) swap(a, b)
#define bitcnt(a) (__builtin_popcountll(a))
#define bithigh(a) (63-__builtin_clzll(a))
#define lg bithigh
#define highpow(a) (1LL << (ll)lg(a))

using namespace std;

struct T{

    int n, mx;
    vector<int> on, L, R;

    void Insert(int i){
        on[i] = 1;
        int prev = (i ? i-1 : n-1);
        int next = (i < n-1 ? i+1 : 0);
        int l = (on[prev] ? L[prev] : i);
        int r = (on[next] ? R[next] : i);
        if (n == 1 || l == next){
            mx = n;
            return;
        }
        smax(mx, (r-l + n) % n + 1);
        R[l] = r;
        L[r] = l;
    }

    int Get() const { return mx; }

    T(int s){
        n = s;
        mx = 0;
        on.assign(n, 0);
        L.resize(n);
        R.resize(n);
    }
};

const ll LINF = 4e18;
const int mxN = 1e6+10, mxD = 5e3+10, INF = 2e9;
int n, m, d, a[mxN], b[mxN], is_free[mxD][mxD];
set<int> s;
vector<int> K[mxN];

void Solve(){

    cin >> n >> m >> d;
    for (int i = 0; i < n; i++)
        cin >> a[i] >> b[i];
    for (int i = n; i < n+m; i++){
        cin >> a[i] >> b[i];
        K[a[i]].pb(i);
    }
    for (int i = 0; i < d; i++){
        for (int j : K[i])
            s.insert(b[j]);
        for (int j = 0; j < d; j++){
            if (s.empty()){
                is_free[i][j] = j;
                continue;
            }
            is_free[i][j] = *s.rbegin();
            if (*s.begin() == j){
                s.erase(s.begin());
                s.insert(j+d);
            }
        }
        s.clear();
    }
    for (int i = 0; i < n; i++)
        s.insert(a[i]);
    for (int i : s)
        for (int j = 0; j < d; j++)
            is_free[i][j] = 2*d;
    s.clear();
    for (int i = 0; i < n; i++)
        s.insert(b[i]);
    int ans = d*d;
    for (int i = 0; i < d; i++){
        vector<vector<int> > t(2*d);
        for (int j = 0; j < d; j++)
            if (is_free[j][i] < 2*d)
                t[is_free[j][i]].pb(j);

        auto x = *s.rbegin();
        T pool(d);
        for (int j = 0; j <= x; j++)
            for (int k : t[j]) pool.Insert(k);


        smin(ans, (x-i+1) * (d - pool.Get()));
        for (int j = x+1; j < i+d; j++){
            for (int k : t[j])
                pool.Insert(k);
            smin(ans, (j-i+1) * (d - pool.Get()));
        }

        if (*s.begin() == i){
            s.erase(s.begin());
            s.insert(i+d);
        }
    }
    cout << ans << en;
}

int main(){

    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0); cerr.tie(0);
    cout << setprecision(12) << fixed;
    cerr << setprecision(12) << fixed;
    cerr << "Started!" << endl;

    int t = 1;
    //cin >> t;
    while (t--)
        Solve();

    return 0;
}

• Subtask 1: 15 / 15
• Subtask 2: 6 / 6
• Subtask 3: 8 / 8
• Subtask 4: 16 / 16
• Subtask 5: 30 / 30
• Subtask 6: 25 / 25