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답안 #160736

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
160736 2019-10-29T15:16:06 Z Minnakhmetov 새 집 (APIO18_new_home) C++14
5 / 100
 2033 ms 1048580 KB 
#include <bits/stdc++.h>
    
#define ll long long
#define all(aaa) aaa.begin(), aaa.end()
  
using namespace std;

struct E {
    int p, t, x, y;
};

const int N = 12e4 + 5, INF = 1e9;
vector<int> vx;
multiset<int> occ[N], t[N];
int n, q, k, cc;
int ans[N];

struct ST {
    vector<int> up[N * 4];
    multiset<int> t[N];

    void push(int v, int L, int R) {
        if (!up[v].empty()) {            
            if (L != R) {
                up[v * 2].insert(up[v * 2].end(), all(up[v]));
                up[v * 2 + 1].insert(up[v * 2 + 1].end(), all(up[v]));
            }
            else {
                for (int x : up[v]) {
                    if (x < 0) {
                        t[L].erase(t[L].find(-x));
                    }
                    else {
                        t[L].insert(x);
                    }
                }    
            }
            up[v].clear();
        }
    }

    void upd(int l, int r, int x, int v, int L, int R) {
        if (l > r)
            return;
        if (l == L && r == R) {
            up[v].push_back(x);
        }
        else {
            push(v, L, R);
            int m = (L + R) >> 1;
            upd(l, min(m, r), x, v * 2, L, m);
            upd(max(m + 1, l), r, x, v * 2 + 1, m + 1, R);
        }
    }
} segt[2];

int que(int x, int v, int L, int R, ST &a, ST &b) {
    a.push(v, L, R);
    b.push(v, L, R);

    if (L == R) {
        if (a.t[L].size() + b.t[L].size() < k)
            return -1;

        int ans = 0;
        if (!a.t[L].empty())
            ans = max(ans, vx[L] - *a.t[L].begin());
        if (!b.t[L].empty())
            ans = max(ans, *b.t[L].rbegin() - vx[L]);

        return ans;
    }
    int m = (L + R) >> 1;
    if (x <= m)
        return que(x, v * 2, L, m, a, b);
    return que(x, v * 2 + 1, m + 1, R, a, b);
}

void updBetween(int x, int y, int k) {
    if (x == y)
        return;

    // cout << "BET " << x << " " << y << " " << k << "\n";

    int m = (x + y) / 2,
        m1 = upper_bound(all(vx), m) - vx.begin(),
        x1 = lower_bound(all(vx), x) - vx.begin(),
        y1 = lower_bound(all(vx), y) - vx.begin();

    segt[0].upd(x1, m1 - 1, k * x, 1, 0, cc - 1);
    segt[1].upd(m1, y1 - 1, k * y, 1, 0, cc - 1);
}

void updBegin(int x, int k) {
    // cout << "BEG " << x << " " << k << "\n";
    // return;

    int x1 = lower_bound(all(vx), x) - vx.begin();
    segt[1].upd(0, x1 - 1, x * k, 1, 0, cc - 1);
}

void updEnd(int x, int k) {
    // cout << "END " << x << " " << k << "\n";

    int x1 = lower_bound(all(vx), x) - vx.begin();
    segt[0].upd(x1, cc - 1, x * k, 1, 0, cc - 1);
}

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

    cin >> n >> k >> q;

    vector<E> evs;

    for (int i = 0; i < n; i++) {
        int x, t, a, b;
        cin >> x >> t >> a >> b;
        t--;
        evs.push_back({a, 0, x, t});
        evs.push_back({b + 1, 1, x, t});
        vx.push_back(x);
    }

    for (int i = 0; i < q; i++) {
        int x, y;
        cin >> x >> y;
        evs.push_back({y, 2, x, i});
        vx.push_back(x);
    }

    sort(all(vx));
    vx.erase(unique(all(vx)), vx.end());

    cc = vx.size();

    sort(all(evs), [](const E &lt, const E &rt) {
        return lt.p == rt.p ? lt.t < rt.t : lt.p < rt.p;
    });

    for (E e : evs) {
        // cout << e.p << " " << e.t << " " << e.x << " " << e.y << "\n";
        if (e.t == 0) {
            if (!occ[e.y].empty()) {
                auto it = occ[e.y].upper_bound(e.x);

                if (it == occ[e.y].begin()) {
                    updBegin(*occ[e.y].begin(), -1);
                }
                else if (it == occ[e.y].end()) {
                    updEnd(*occ[e.y].rbegin(), -1);
                }
                else {
                    updBetween(*prev(it), *it, -1);
                }
            }

            auto it = occ[e.y].insert(e.x);

            if (it == occ[e.y].begin())
                updBegin(*it, 1);
            else
                updBetween(*prev(it), *it, 1);

            if (next(it) == occ[e.y].end())
                updEnd(*it, 1);
            else
                updBetween(*it, *next(it), 1);
        }
        else if (e.t == 1) {
            auto it = occ[e.y].lower_bound(e.x);

            if (it == occ[e.y].begin())
                updBegin(*it, -1);
            else
                updBetween(*prev(it), *it, -1);

            if (next(it) == occ[e.y].end())
                updEnd(*it, -1);
            else
                updBetween(*it, *next(it), -1);

            it++;
            occ[e.y].erase(prev(it));

            if (!occ[e.y].empty()) {
                if (it == occ[e.y].begin()) {
                    updBegin(*occ[e.y].begin(), 1);
                }
                else if (it == occ[e.y].end()) {
                    updEnd(*occ[e.y].rbegin(), 1);
                }
                else {
                    updBetween(*prev(it), *it, 1);
                }
            }
        }
        else {
            e.x = lower_bound(all(vx), e.x) - vx.begin();
            ans[e.y] = que(e.x, 1, 0, cc - 1, segt[0], segt[1]);
        }
    }

    for (int i = 0; i < q; i++) {
        cout << ans[i] << "\n";
    }

    return 0;
}

Compilation message

new_home.cpp: In function 'int que(int, int, int, int, ST&, ST&)':
new_home.cpp:62:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if (a.t[L].size() + b.t[L].size() < k)
             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 45432 KB Output is correct
2 Correct 44 ms 45432 KB Output is correct
3 Correct 45 ms 45432 KB Output is correct
4 Correct 47 ms 45428 KB Output is correct
5 Correct 46 ms 45560 KB Output is correct
6 Correct 56 ms 46968 KB Output is correct
7 Correct 77 ms 50580 KB Output is correct
8 Correct 84 ms 50680 KB Output is correct
9 Correct 86 ms 52700 KB Output is correct
10 Correct 57 ms 46840 KB Output is correct
11 Correct 61 ms 49272 KB Output is correct
12 Correct 53 ms 46968 KB Output is correct
13 Correct 56 ms 49500 KB Output is correct
14 Correct 60 ms 48760 KB Output is correct
15 Correct 84 ms 51964 KB Output is correct
16 Correct 80 ms 53212 KB Output is correct
17 Correct 74 ms 50680 KB Output is correct
18 Correct 84 ms 51996 KB Output is correct
19 Correct 86 ms 52728 KB Output is correct
20 Correct 77 ms 50552 KB Output is correct
21 Correct 46 ms 45560 KB Output is correct
22 Correct 84 ms 53880 KB Output is correct
23 Correct 86 ms 52280 KB Output is correct
24 Correct 86 ms 51556 KB Output is correct
25 Correct 75 ms 50296 KB Output is correct
26 Correct 68 ms 49912 KB Output is correct
27 Correct 52 ms 45644 KB Output is correct
28 Correct 64 ms 48984 KB Output is correct
29 Correct 62 ms 49016 KB Output is correct
30 Correct 58 ms 48252 KB Output is correct

Subtask #2
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 45432 KB Output is correct
2 Correct 44 ms 45432 KB Output is correct
3 Correct 45 ms 45432 KB Output is correct
4 Correct 47 ms 45428 KB Output is correct
5 Correct 46 ms 45560 KB Output is correct
6 Correct 56 ms 46968 KB Output is correct
7 Correct 77 ms 50580 KB Output is correct
8 Correct 84 ms 50680 KB Output is correct
9 Correct 86 ms 52700 KB Output is correct
10 Correct 57 ms 46840 KB Output is correct
11 Correct 61 ms 49272 KB Output is correct
12 Correct 53 ms 46968 KB Output is correct
13 Correct 56 ms 49500 KB Output is correct
14 Correct 60 ms 48760 KB Output is correct
15 Correct 84 ms 51964 KB Output is correct
16 Correct 80 ms 53212 KB Output is correct
17 Correct 74 ms 50680 KB Output is correct
18 Correct 84 ms 51996 KB Output is correct
19 Correct 86 ms 52728 KB Output is correct
20 Correct 77 ms 50552 KB Output is correct
21 Correct 46 ms 45560 KB Output is correct
22 Correct 84 ms 53880 KB Output is correct
23 Correct 86 ms 52280 KB Output is correct
24 Correct 86 ms 51556 KB Output is correct
25 Correct 75 ms 50296 KB Output is correct
26 Correct 68 ms 49912 KB Output is correct
27 Correct 52 ms 45644 KB Output is correct
28 Correct 64 ms 48984 KB Output is correct
29 Correct 62 ms 49016 KB Output is correct
30 Correct 58 ms 48252 KB Output is correct
31 Runtime error 2033 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
32 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 567 ms 133888 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 540 ms 133668 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 45432 KB Output is correct
2 Correct 44 ms 45432 KB Output is correct
3 Correct 45 ms 45432 KB Output is correct
4 Correct 47 ms 45428 KB Output is correct
5 Correct 46 ms 45560 KB Output is correct
6 Correct 56 ms 46968 KB Output is correct
7 Correct 77 ms 50580 KB Output is correct
8 Correct 84 ms 50680 KB Output is correct
9 Correct 86 ms 52700 KB Output is correct
10 Correct 57 ms 46840 KB Output is correct
11 Correct 61 ms 49272 KB Output is correct
12 Correct 53 ms 46968 KB Output is correct
13 Correct 56 ms 49500 KB Output is correct
14 Correct 60 ms 48760 KB Output is correct
15 Correct 84 ms 51964 KB Output is correct
16 Correct 80 ms 53212 KB Output is correct
17 Correct 74 ms 50680 KB Output is correct
18 Correct 84 ms 51996 KB Output is correct
19 Correct 86 ms 52728 KB Output is correct
20 Correct 77 ms 50552 KB Output is correct
21 Correct 46 ms 45560 KB Output is correct
22 Correct 84 ms 53880 KB Output is correct
23 Correct 86 ms 52280 KB Output is correct
24 Correct 86 ms 51556 KB Output is correct
25 Correct 75 ms 50296 KB Output is correct
26 Correct 68 ms 49912 KB Output is correct
27 Correct 52 ms 45644 KB Output is correct
28 Correct 64 ms 48984 KB Output is correct
29 Correct 62 ms 49016 KB Output is correct
30 Correct 58 ms 48252 KB Output is correct
31 Runtime error 2033 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
32 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 45432 KB Output is correct
2 Correct 44 ms 45432 KB Output is correct
3 Correct 45 ms 45432 KB Output is correct
4 Correct 47 ms 45428 KB Output is correct
5 Correct 46 ms 45560 KB Output is correct
6 Correct 56 ms 46968 KB Output is correct
7 Correct 77 ms 50580 KB Output is correct
8 Correct 84 ms 50680 KB Output is correct
9 Correct 86 ms 52700 KB Output is correct
10 Correct 57 ms 46840 KB Output is correct
11 Correct 61 ms 49272 KB Output is correct
12 Correct 53 ms 46968 KB Output is correct
13 Correct 56 ms 49500 KB Output is correct
14 Correct 60 ms 48760 KB Output is correct
15 Correct 84 ms 51964 KB Output is correct
16 Correct 80 ms 53212 KB Output is correct
17 Correct 74 ms 50680 KB Output is correct
18 Correct 84 ms 51996 KB Output is correct
19 Correct 86 ms 52728 KB Output is correct
20 Correct 77 ms 50552 KB Output is correct
21 Correct 46 ms 45560 KB Output is correct
22 Correct 84 ms 53880 KB Output is correct
23 Correct 86 ms 52280 KB Output is correct
24 Correct 86 ms 51556 KB Output is correct
25 Correct 75 ms 50296 KB Output is correct
26 Correct 68 ms 49912 KB Output is correct
27 Correct 52 ms 45644 KB Output is correct
28 Correct 64 ms 48984 KB Output is correct
29 Correct 62 ms 49016 KB Output is correct
30 Correct 58 ms 48252 KB Output is correct
31 Runtime error 2033 ms 1048580 KB Execution killed with signal 9 (could be triggered by violating memory limits)
32 Halted 0 ms 0 KB -