Submission #229084

#	Time	Username	Problem	Language	Result	Execution time	Memory
229084		VEGAnn	Sunčanje (COCI18_suncanje)	C++14	13 / 130	3860 ms	262148 KiB

suncanje

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define PB push_back
#define all(x) x.begin(),x.end()
#define pii pair<int,unsigned short>
#define MP make_pair
#define ft first
#define sd second
#define sz(x) ((int)x.size())
using namespace std;
using namespace __gnu_pbds;
template <class T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long ll;
const int N = 100100;
const int PW = 22;
const int oo = 2e9;
vector<int> xs, ys;
bool mrk[N];
int x1[N], Y1[N], x2[N], y2[N], n, IND;
ordered_set<pii> up, down, Left, Right, st[4][2 * N];

int get_up_left(int v, int tl, int tr, int x, int y){
    if (ys[tl] > x || !sz(st[0][v])) return 0;

    if (ys[tr] <= x) return sz(st[0][v]) - st[0][v].order_of_key(MP(y - 1, oo));

    int md = (tl + tr) >> 1;

    return get_up_left(v + v, tl, md, x, y) + get_up_left(v + v + 1, md + 1, tr, x, y);
}

int get_down_left(int v, int tl, int tr, int x, int y){
    if (ys[tl] > x || !sz(st[2][v])) return 0;

    if (ys[tr] <= x) return st[2][v].order_of_key(MP(y, oo));

    int md = (tl + tr) >> 1;

    return get_down_left(v + v, tl, md, x, y) + get_down_left(v + v + 1, md + 1, tr, x, y);
}

int get_up_right(int v, int tl, int tr, int x, int y){
    if (xs[tr] < x || !sz(st[1][v])) return 0;

    if (xs[tl] >= x) return sz(st[1][v]) - st[1][v].order_of_key(MP(y - 1, oo));

    int md = (tl + tr) >> 1;

    return get_up_right(v + v, tl, md, x, y) + get_up_right(v + v + 1, md + 1, tr, x, y);
}

int get_down_right(int v, int tl, int tr, int x, int y){
    if (xs[tr] < x  || !sz(st[3][v])) return 0;

    if (xs[tl] >= x) return st[3][v].order_of_key(MP(y, oo));

    int md = (tl + tr) >> 1;

    return get_down_right(v + v, tl, md, x, y) + get_down_right(v + v + 1, md + 1, tr, x, y);
}

void update_fi(int tp, int v, int l, int r, int x, int y){
    st[tp][v].insert(MP(y, IND));
    if (l == r) return;

    int md = (l + r) >> 1;

    if (xs[md] >= x)
        update_fi(tp, v + v, l, md, x, y);
    else update_fi(tp, v + v + 1, md + 1, r, x, y);
}

void update_se(int tp, int v, int l, int r, int x, int y){
    st[tp][v].insert(MP(y, IND));
    if (l == r) return;

    int md = (l + r) >> 1;

    if (xs[md] >= x)
        update_se(tp, v + v, l, md, x, y);
    else update_se(tp, v + v + 1, md + 1, r, x, y);
}

// ses

void update_fis(int tp, int v, int l, int r, int x, int y){
    st[tp][v].insert(MP(y, IND));
    if (l == r) return;

    int md = (l + r) >> 1;

    if (ys[md] >= x)
        update_fis(tp, v + v, l, md, x, y);
    else update_fis(tp, v + v + 1, md + 1, r, x, y);
}

void update_ses(int tp, int v, int l, int r, int x, int y){
    st[tp][v].insert(MP(y, IND));
    if (l == r) return;

    int md = (l + r) >> 1;

    if (ys[md] >= x)
        update_ses(tp, v + v, l, md, x, y);
    else update_ses(tp, v + v + 1, md + 1, r, x, y);
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);

#ifdef _LOCAL
    freopen("in.txt","r",stdin);
#endif // _LOCAL

    cin >> n;

    for (int i = 0; i < n; i++){
        int X, Y; cin >> x1[i] >> Y1[i] >> X >> Y;
        x2[i] = x1[i] + X;
        y2[i] = Y1[i] + Y;

        xs.PB(x1[i]);
        ys.PB(x2[i]);
    }

    sort(all(xs));
    sort(all(ys));

    xs.resize(unique(all(xs)) - xs.begin());
    ys.resize(unique(all(ys)) - ys.begin());

    up.clear();
    down.clear();
    Left.clear();
    Right.clear();

    for (int i = n - 1; i >= 0; i--){
        if (i < n - 1){
            int kol = 0;
            kol += sz(up) - up.order_of_key(MP(y2[i] - 1, oo));
            kol += Left.order_of_key(MP(x1[i], oo));
            kol += down.order_of_key(MP(Y1[i], oo));
            kol += sz(Right) - Right.order_of_key(MP(x2[i] - 1, oo));

            kol -= get_up_left(1, 0, sz(ys) - 1, x1[i], y2[i]);
            kol -= get_down_left(1, 0, sz(ys) - 1, x1[i], Y1[i]);
            kol -= get_up_right(1, 0, sz(xs) - 1, x2[i], y2[i]);
            kol -= get_down_right(1, 0, sz(xs) - 1, x2[i], Y1[i]);

            if (kol < n - i - 1)
                mrk[i] = 1;
        }

        // add new elements
        up.insert(MP(Y1[i], i));
        down.insert(MP(y2[i], i));
        Left.insert(MP(x2[i], i));
        Right.insert(MP(x1[i], i));

        IND = i;

        update_fis(2, 1, 0, sz(ys) - 1, x2[i], y2[i]);
        update_fi(3, 1, 0, sz(xs) - 1, x1[i], y2[i]);

        update_ses(0, 1, 0, sz(ys) - 1, x2[i], Y1[i]);
        update_se(1, 1, 0, sz(xs) - 1, x1[i], Y1[i]);
    }

    for (int i = 0; i < n; i++)
        cout << (mrk[i] ? "NE\n" : "DA\n");

    return 0;
}

• Subtask 1: 13 / 13
• Subtask 2: 0 / 13
• Subtask 3: 0 / 13
• Subtask 4: 0 / 13
• Subtask 5: 0 / 13
• Subtask 6: 0 / 13
• Subtask 7: 0 / 13
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• Subtask 10: 0 / 13