Submission #1037365

#	Time	Username	Problem	Language	Result	Execution time	Memory
1037365		TrinhKhanhDung	Measures (CEOI22_measures)	C++14	0 / 100	124 ms	38900 KiB

Main

#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define sz(x) (int)x.size()
#define ALL(v) v.begin(),v.end()
#define MASK(k) (1LL << (k))
#define BIT(x, i) (((x) >> (i)) & 1)
#define oo (ll)1e18
#define INF (ll)1e9
#define MOD (ll)(1e9 + 7)

using namespace std;

template<class T1, class T2>
    bool maximize(T1 &a, T2 b){if(a < b){a = b; return true;} return false;}

template<class T1, class T2>
    bool minimize(T1 &a, T2 b){if(a > b){a = b; return true;} return false;}

template<class T1, class T2>
    void add(T1 &a, T2 b){a += b; if(a >= MOD) a -= MOD;}

template<class T1, class T2>
    void sub(T1 &a, T2 b){a -= b; if(a < 0) a += MOD;}

template<class T>
    void cps(T &v){sort(ALL(v)); v.resize(unique(ALL(v)) - v.begin());}

struct SegmentTree{
    struct Node{
        ll mi, ma, ans, lazy;
        bool exist;
        Node(){
            mi = 0;
            ma = 0;
            ans = 0;
            lazy = 0;
            exist = false;
        }
    };
    vector<Node> it;
    int n;

    SegmentTree(int _n = 0){
        n = _n;
        it.resize(n * 4 + 3);
    }

    void push(int i){
        if(it[i].lazy == 0) return;
        if(it[i * 2].exist){
            it[i * 2].mi += it[i].lazy;
            it[i * 2].ma += it[i].lazy;
            it[i * 2].lazy += it[i].lazy;
        }
        if(it[i * 2 + 1].exist){
            it[i * 2 + 1].mi += it[i].lazy;
            it[i * 2 + 1].ma += it[i].lazy;
            it[i * 2 + 1].lazy += it[i].lazy;
        }
        it[i].lazy = 0;
    }

    Node combine(Node a, Node b){
        Node ans;
        ans.mi = oo; ans.ma = -oo;
        if(a.exist){
            minimize(ans.mi, a.mi);
            maximize(ans.ma, a.ma);
            maximize(ans.ans, a.ans);
        }
        if(b.exist){
            minimize(ans.mi, b.mi);
            maximize(ans.ma, b.ma);
            maximize(ans.ans, b.ans);
        }
        if(a.exist && b.exist){
            maximize(ans.ans, a.ma - b.mi);
        }
        ans.exist = a.exist || b.exist;
        return ans;
    }

    void update(int i, int l, int r, int u, int v, ll c, bool ok){
        if(r < u || v < l) return;
        if(ok && l == r){
            it[i].mi += c;
            it[i].ma += c;
            it[i].exist = true;
            return;
        }
        if(u <= l && r <= v){
            if(it[i].exist){
                it[i].mi += c;
                it[i].ma += c;
                it[i].lazy += c;
            }
            return;
        }
        push(i);
        int m = (l + r) >> 1;
        update(i * 2, l, m, u, v, c, ok);
        update(i * 2 + 1, m + 1, r, u, v, c, ok);
        it[i] = combine(it[i * 2], it[i * 2 + 1]);
    }

    void update(int u, int v, ll c, bool ok){
        update(1, 1, n, u, v, c, ok);
    }
};

struct FenwickTree{
    vector<int> tree;
    int n;

    FenwickTree(int _n = 0){
        n = _n;
        tree.resize(n + 3, 0);
    }

    void update(int p, int c){
        while(p <= n){
            tree[p] += c;
            p += p & -p;
        }
    }

    int getVal(int p){
        int ans = 0;
        while(p > 0){
            ans += tree[p];
            p -= p & -p;
        }
        return ans;
    }
};

void solve(){
//    SegmentTree it(5);
//    it.update(1, 1, -2);
//    it.update(2, 5, -3);
//    cout << it.it[1].ans << '\n';
//    it.update(2, 2, -4);
//    it.update(3, 5, -3);
//    cout << it.it[1].ans << '\n';
//    it.update(3, 3, -6);
//    it.update(4, 5, -3);
//    cout << it.it[1].ans << '\n';


    int N, Q, D;
    cin >> N >> Q >> D;

    vector<int> a(N+Q), order(N+Q), pos(N+Q);
    for(int i=0; i<N+Q; i++){
        cin >> a[i];
        order[i] = i;
    }
    sort(ALL(order), [&](int i, int j){return a[i] < a[j];});
    for(int i=0; i<N+Q; i++){
        pos[order[i]] = i + 1;
    }
    SegmentTree it(N+Q);
    FenwickTree bit(N+Q);
    for(int i=0; i<N+Q; i++){
        bit.update(pos[i], 1);
        int p = bit.getVal(pos[i]);
        it.update(pos[i], pos[i], a[i] - 1LL * p * D, true);
//        cout << p << ' ' << a[i] << '\n';
        it.update(pos[i] + 1, N+Q, -D, false);

        if(i + 1 > N){
            int res = it.it[1].ans;
            if(res & 1){
                cout << res/2 << ".5 ";
            }
            else{
                cout << res/2 << ' ';
            }
        }
    }
}

signed main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
//    freopen("task.inp", "r", stdin);
//    freopen("task.out", "w", stdout);

    solve();

    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 14
• Subtask 3: 0 / 35
• Subtask 4: 0 / 41