Submission #49725

# Submission time Handle Problem Language Result Execution time Memory
49725 2018-06-02T10:32:29 Z gs13105 New Home (APIO18_new_home) C++17
80 / 100
5000 ms 459512 KB
//#pragma GCC optimize ("O3")

#include <cstdio>
#include <algorithm>
#include <vector>
#include <map>
#include <iterator>

using namespace std;

const int INF = 100000000;

static char buf[33554432];
static int fio_idx = 0;
static inline int _readInt() {
    int x = 0;
    int c = buf[fio_idx++];
    if(c <= 32) c = buf[fio_idx++];
    while(c > 32) x = 10 * x + (c - '0'), c = buf[fio_idx++];
    return x;
}

int n, k, q, bp;

int com[524288];
int c_sz;
inline int idx(int x)
{
    return lower_bound(com, com + c_sz, x) - com;
}

struct eve
{
    int t, x, d;
    bool operator <(const eve &e) const
    {
        return t != e.t ? t < e.t : d > e.d;
    }
};

struct pos
{
    int c, l, lt, r, rt;
};

eve arr[1048576];
map<int, pos> loc[524288];

struct seg
{
    int t1, t2, x, y;
    bool operator <(const seg &e) const
    {
        return x < e.x;
    }
};

seg sor0[1048576];
seg sor1[1048576];
int s_sz0, s_sz1;
inline void add_seg(const int &t1, const int &t2, const int &x, const int &y)
{
    if(t1 > t2 || x == y)
        return;

    int nt1 = bp + idx(t1);
    int nt2 = bp + idx(t2 + 1) - 1;
    if(nt1 > nt2)
        return;

    if(y < x)
        sor0[s_sz0++] = { nt1, nt2, y, x };
    else
        sor1[s_sz1++] = { nt1, nt2, -y, -x };
}

struct ent
{
    // v0 : dec, v1 : inc, q : query
    // v : { x, y }
    // q : { x, i }
    vector<pair<int, int>> v0, v1;
    vector<pair<int, int>> q;
};

ent mem[1048576];

struct que
{
    int l, y, i;
    bool operator <(const que &x) const
    {
        return l < x.l;
    }
};

que inp[524288];
bool chk[524288];
int ans[524288];

int main()
{
    fread(buf, sizeof(buf[0]), sizeof(buf), stdin);
    n = _readInt();
    k = _readInt();
    q = _readInt();
    for(int i = 0; i < n; i++)
    {
        int x, t, a, b;
        x = _readInt();
        t = _readInt();
        a = _readInt();
        b = _readInt();
        arr[2 * i] = { a, x, t };
        arr[2 * i + 1] = { b, x, -t };
    }
    for(int i = 0; i < q; i++)
    {
        int l, y;
        l = _readInt();
        y = _readInt();
        inp[i] = { l, y, i };
        com[i] = y;
    }

    sort(com, com + q);
    c_sz = unique(com, com + q) - com;

    for(bp = 1; bp < c_sz; bp *= 2);

    sort(arr, arr + 2 * n);
    int cur, cnt = 0;
    for(int u = 0; u < 2 * n; u++)
    {
        eve &e = arr[u];
        if(e.d > 0)
        {
            if(loc[e.d].size() == 0)
            {
                cnt++;
                if(cnt == k)
                    cur = e.t;
            }

            auto it = loc[e.d].find(e.x);
            if(it != loc[e.d].end())
            {
                it->second.c++;
                continue;
            }

            it = loc[e.d].insert({ e.x,{ 1, 1, e.t, INF, e.t } }).first;
            pos &p = it->second;

            if(it != loc[e.d].begin())
            {
                int x = prev(it)->first;
                pos &q = prev(it)->second;

                add_seg(q.rt, e.t - 1, x, q.r);
                q.rt = e.t;
                q.r = (x + e.x) / 2;

                p.l = (x + e.x + 1) / 2;
            }

            it++;
            if(it != loc[e.d].end())
            {
                int x = it->first;
                pos &q = it->second;

                add_seg(q.lt, e.t - 1, x, q.l);
                q.lt = e.t;
                q.l = (x + e.x + 1) / 2;

                p.r = (x + e.x) / 2;
            }
        }
        else
        {
            e.d = -e.d;

            auto it = loc[e.d].find(e.x);
            pos &p = it->second;

            if(p.c > 1)
            {
                p.c--;
                continue;
            }

            add_seg(p.lt, e.t, e.x, p.l);
            add_seg(p.rt, e.t, e.x, p.r);

            if(it != loc[e.d].begin())
            {
                int x = prev(it)->first;
                pos &q = prev(it)->second;

                add_seg(q.rt, e.t, x, q.r);
                q.rt = e.t + 1;
                if(next(it) != loc[e.d].end())
                {
                    int y = next(it)->first;
                    q.r = (x + y) / 2;
                }
                else
                    q.r = INF;
            }

            if(next(it) != loc[e.d].end())
            {
                int x = next(it)->first;
                pos &q = next(it)->second;

                add_seg(q.lt, e.t, x, q.l);
                q.lt = e.t + 1;
                if(it != loc[e.d].begin())
                {
                    int y = prev(it)->first;
                    q.l = (y + x + 1) / 2;
                }
                else
                    q.l = 1;
            }

            loc[e.d].erase(it);

            if(loc[e.d].size() == 0)
            {
                if(cnt == k)
                {
                    int t1 = idx(cur);
                    int t2 = idx(e.t + 1) - 1;
                    for(int i = t1; i <= t2; i++)
                        chk[i] = 1;
                }
                cnt--;
            }
        }
    }

    sort(inp, inp + q);
    for(int u = 0; u < q; u++)
    {
        que &e = inp[u];
        e.y = idx(e.y);
        if(chk[e.y])
        {
            e.y += bp;
            while(e.y)
            {
                mem[e.y].q.push_back({ e.l, e.i });
                e.y /= 2;
            }
        }
        else
            ans[e.i] = -1;
    }

    {
        sort(sor0, sor0 + s_sz0);
        for(int u = 0; u < s_sz0; u++)
        {
            seg &e = sor0[u];
            while(e.t1 < e.t2)
            {
                if(e.t1 % 2 == 1)
                {
                    mem[e.t1].v0.push_back({ e.x, e.y });
                    e.t1++;
                }
                if(e.t2 % 2 == 0)
                {
                    mem[e.t2].v0.push_back({ e.x, e.y });
                    e.t2--;
                }
                e.t1 /= 2;
                e.t2 /= 2;
            }
            if(e.t1 == e.t2)
                mem[e.t1].v0.push_back({ e.x, e.y });
        }
    }
    {
        sort(sor1, sor1 + s_sz1);
        for(int u = 0; u < s_sz1; u++)
        {
            seg &e = sor1[u];
            while(e.t1 < e.t2)
            {
                if(e.t1 % 2 == 1)
                {
                    mem[e.t1].v1.push_back({ e.x, e.y });
                    e.t1++;
                }
                if(e.t2 % 2 == 0)
                {
                    mem[e.t2].v1.push_back({ e.x, e.y });
                    e.t2--;
                }
                e.t1 /= 2;
                e.t2 /= 2;
            }
            if(e.t1 == e.t2)
                mem[e.t1].v1.push_back({ e.x, e.y });
        }
    }

    for(int x = 1; x <= bp + c_sz - 1; x++)
    {
        if(mem[x].q.empty())
            continue;

        int mx, p1, p2;
        if(!mem[x].v0.empty())
        {
            mx = p1 = p2 = 0;
            while(p2 < mem[x].q.size())
            {
                if(p1 != mem[x].v0.size() && mem[x].v0[p1].first <= mem[x].q[p2].first)
                {
                    mx = max(mx, mem[x].v0[p1].second);
                    p1++;
                }
                else
                {
                    ans[mem[x].q[p2].second] = max(ans[mem[x].q[p2].second], mx - mem[x].q[p2].first);
                    p2++;
                }
            }
        }
        if(!mem[x].v1.empty())
        {
            mx = -INF;
            p1 = 0;
            p2 = mem[x].q.size() - 1;
            while(p2 >= 0)
            {
                if(p1 != mem[x].v1.size() && mem[x].v1[p1].first <= -mem[x].q[p2].first)
                {
                    mx = max(mx, mem[x].v1[p1].second);
                    p1++;
                }
                else
                {
                    ans[mem[x].q[p2].second] = max(ans[mem[x].q[p2].second], mx + mem[x].q[p2].first);
                    p2--;
                }
            }
        }
    }

    for(int i = 0; i < q; i++)
        printf("%d\n", ans[i]);
    return 0;
}

Compilation message

new_home.cpp: In function 'int main()':
new_home.cpp:320:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(p2 < mem[x].q.size())
                   ~~~^~~~~~~~~~~~~~~~~
new_home.cpp:322:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(p1 != mem[x].v0.size() && mem[x].v0[p1].first <= mem[x].q[p2].first)
                    ~~~^~~~~~~~~~~~~~~~~~~
new_home.cpp:341:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(p1 != mem[x].v1.size() && mem[x].v1[p1].first <= -mem[x].q[p2].first)
                    ~~~^~~~~~~~~~~~~~~~~~~
new_home.cpp:103:10: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
     fread(buf, sizeof(buf[0]), sizeof(buf), stdin);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 93 ms 98808 KB Output is correct
2 Correct 89 ms 99044 KB Output is correct
3 Correct 96 ms 99044 KB Output is correct
4 Correct 91 ms 99044 KB Output is correct
5 Correct 88 ms 99160 KB Output is correct
6 Correct 88 ms 99344 KB Output is correct
7 Correct 86 ms 99344 KB Output is correct
8 Correct 94 ms 99344 KB Output is correct
9 Correct 87 ms 99344 KB Output is correct
10 Correct 87 ms 99400 KB Output is correct
11 Correct 89 ms 99400 KB Output is correct
12 Correct 84 ms 99400 KB Output is correct
13 Correct 79 ms 99400 KB Output is correct
14 Correct 80 ms 99400 KB Output is correct
15 Correct 82 ms 99400 KB Output is correct
16 Correct 82 ms 99400 KB Output is correct
17 Correct 84 ms 99400 KB Output is correct
18 Correct 84 ms 99400 KB Output is correct
19 Correct 89 ms 99400 KB Output is correct
20 Correct 84 ms 99400 KB Output is correct
21 Correct 148 ms 99400 KB Output is correct
22 Correct 88 ms 99400 KB Output is correct
23 Correct 119 ms 99448 KB Output is correct
24 Correct 100 ms 99448 KB Output is correct
25 Correct 90 ms 99580 KB Output is correct
26 Correct 82 ms 99580 KB Output is correct
27 Correct 80 ms 99580 KB Output is correct
28 Correct 82 ms 99580 KB Output is correct
29 Correct 85 ms 99580 KB Output is correct
30 Correct 80 ms 99580 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 93 ms 98808 KB Output is correct
2 Correct 89 ms 99044 KB Output is correct
3 Correct 96 ms 99044 KB Output is correct
4 Correct 91 ms 99044 KB Output is correct
5 Correct 88 ms 99160 KB Output is correct
6 Correct 88 ms 99344 KB Output is correct
7 Correct 86 ms 99344 KB Output is correct
8 Correct 94 ms 99344 KB Output is correct
9 Correct 87 ms 99344 KB Output is correct
10 Correct 87 ms 99400 KB Output is correct
11 Correct 89 ms 99400 KB Output is correct
12 Correct 84 ms 99400 KB Output is correct
13 Correct 79 ms 99400 KB Output is correct
14 Correct 80 ms 99400 KB Output is correct
15 Correct 82 ms 99400 KB Output is correct
16 Correct 82 ms 99400 KB Output is correct
17 Correct 84 ms 99400 KB Output is correct
18 Correct 84 ms 99400 KB Output is correct
19 Correct 89 ms 99400 KB Output is correct
20 Correct 84 ms 99400 KB Output is correct
21 Correct 148 ms 99400 KB Output is correct
22 Correct 88 ms 99400 KB Output is correct
23 Correct 119 ms 99448 KB Output is correct
24 Correct 100 ms 99448 KB Output is correct
25 Correct 90 ms 99580 KB Output is correct
26 Correct 82 ms 99580 KB Output is correct
27 Correct 80 ms 99580 KB Output is correct
28 Correct 82 ms 99580 KB Output is correct
29 Correct 85 ms 99580 KB Output is correct
30 Correct 80 ms 99580 KB Output is correct
31 Correct 916 ms 168952 KB Output is correct
32 Correct 112 ms 168952 KB Output is correct
33 Correct 892 ms 168952 KB Output is correct
34 Correct 794 ms 168952 KB Output is correct
35 Correct 993 ms 169612 KB Output is correct
36 Correct 999 ms 169764 KB Output is correct
37 Correct 612 ms 169764 KB Output is correct
38 Correct 557 ms 169764 KB Output is correct
39 Correct 468 ms 169764 KB Output is correct
40 Correct 469 ms 169764 KB Output is correct
41 Correct 579 ms 169764 KB Output is correct
42 Correct 537 ms 169764 KB Output is correct
43 Correct 102 ms 169764 KB Output is correct
44 Correct 549 ms 169764 KB Output is correct
45 Correct 497 ms 169764 KB Output is correct
46 Correct 487 ms 169764 KB Output is correct
47 Correct 290 ms 169764 KB Output is correct
48 Correct 288 ms 169764 KB Output is correct
49 Correct 352 ms 169764 KB Output is correct
50 Correct 357 ms 169764 KB Output is correct
51 Correct 318 ms 169764 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1601 ms 252112 KB Output is correct
2 Correct 2121 ms 253564 KB Output is correct
3 Correct 1361 ms 253564 KB Output is correct
4 Correct 1439 ms 253564 KB Output is correct
5 Correct 2133 ms 273496 KB Output is correct
6 Correct 1913 ms 273496 KB Output is correct
7 Correct 1774 ms 273496 KB Output is correct
8 Correct 1471 ms 273496 KB Output is correct
9 Correct 1641 ms 276688 KB Output is correct
10 Correct 1709 ms 276688 KB Output is correct
11 Correct 1036 ms 276688 KB Output is correct
12 Correct 1077 ms 276688 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3880 ms 344636 KB Output is correct
2 Correct 244 ms 344636 KB Output is correct
3 Correct 4148 ms 365432 KB Output is correct
4 Correct 937 ms 365432 KB Output is correct
5 Correct 2186 ms 365432 KB Output is correct
6 Correct 1837 ms 365432 KB Output is correct
7 Correct 4163 ms 365432 KB Output is correct
8 Correct 4353 ms 365432 KB Output is correct
9 Correct 1309 ms 365432 KB Output is correct
10 Correct 2797 ms 365432 KB Output is correct
11 Correct 4411 ms 365432 KB Output is correct
12 Correct 4914 ms 365432 KB Output is correct
13 Correct 1694 ms 365432 KB Output is correct
14 Correct 1738 ms 365432 KB Output is correct
15 Correct 2005 ms 365432 KB Output is correct
16 Correct 2174 ms 365432 KB Output is correct
17 Correct 2183 ms 365432 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 93 ms 98808 KB Output is correct
2 Correct 89 ms 99044 KB Output is correct
3 Correct 96 ms 99044 KB Output is correct
4 Correct 91 ms 99044 KB Output is correct
5 Correct 88 ms 99160 KB Output is correct
6 Correct 88 ms 99344 KB Output is correct
7 Correct 86 ms 99344 KB Output is correct
8 Correct 94 ms 99344 KB Output is correct
9 Correct 87 ms 99344 KB Output is correct
10 Correct 87 ms 99400 KB Output is correct
11 Correct 89 ms 99400 KB Output is correct
12 Correct 84 ms 99400 KB Output is correct
13 Correct 79 ms 99400 KB Output is correct
14 Correct 80 ms 99400 KB Output is correct
15 Correct 82 ms 99400 KB Output is correct
16 Correct 82 ms 99400 KB Output is correct
17 Correct 84 ms 99400 KB Output is correct
18 Correct 84 ms 99400 KB Output is correct
19 Correct 89 ms 99400 KB Output is correct
20 Correct 84 ms 99400 KB Output is correct
21 Correct 148 ms 99400 KB Output is correct
22 Correct 88 ms 99400 KB Output is correct
23 Correct 119 ms 99448 KB Output is correct
24 Correct 100 ms 99448 KB Output is correct
25 Correct 90 ms 99580 KB Output is correct
26 Correct 82 ms 99580 KB Output is correct
27 Correct 80 ms 99580 KB Output is correct
28 Correct 82 ms 99580 KB Output is correct
29 Correct 85 ms 99580 KB Output is correct
30 Correct 80 ms 99580 KB Output is correct
31 Correct 916 ms 168952 KB Output is correct
32 Correct 112 ms 168952 KB Output is correct
33 Correct 892 ms 168952 KB Output is correct
34 Correct 794 ms 168952 KB Output is correct
35 Correct 993 ms 169612 KB Output is correct
36 Correct 999 ms 169764 KB Output is correct
37 Correct 612 ms 169764 KB Output is correct
38 Correct 557 ms 169764 KB Output is correct
39 Correct 468 ms 169764 KB Output is correct
40 Correct 469 ms 169764 KB Output is correct
41 Correct 579 ms 169764 KB Output is correct
42 Correct 537 ms 169764 KB Output is correct
43 Correct 102 ms 169764 KB Output is correct
44 Correct 549 ms 169764 KB Output is correct
45 Correct 497 ms 169764 KB Output is correct
46 Correct 487 ms 169764 KB Output is correct
47 Correct 290 ms 169764 KB Output is correct
48 Correct 288 ms 169764 KB Output is correct
49 Correct 352 ms 169764 KB Output is correct
50 Correct 357 ms 169764 KB Output is correct
51 Correct 318 ms 169764 KB Output is correct
52 Correct 291 ms 365432 KB Output is correct
53 Correct 324 ms 365432 KB Output is correct
54 Correct 493 ms 365432 KB Output is correct
55 Correct 498 ms 365432 KB Output is correct
56 Correct 460 ms 365432 KB Output is correct
57 Correct 678 ms 365432 KB Output is correct
58 Correct 640 ms 365432 KB Output is correct
59 Correct 472 ms 365432 KB Output is correct
60 Correct 640 ms 365432 KB Output is correct
61 Correct 186 ms 365432 KB Output is correct
62 Correct 352 ms 365432 KB Output is correct
63 Correct 528 ms 365432 KB Output is correct
64 Correct 604 ms 365432 KB Output is correct
65 Correct 719 ms 365432 KB Output is correct
66 Correct 707 ms 365432 KB Output is correct
67 Correct 181 ms 365432 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 93 ms 98808 KB Output is correct
2 Correct 89 ms 99044 KB Output is correct
3 Correct 96 ms 99044 KB Output is correct
4 Correct 91 ms 99044 KB Output is correct
5 Correct 88 ms 99160 KB Output is correct
6 Correct 88 ms 99344 KB Output is correct
7 Correct 86 ms 99344 KB Output is correct
8 Correct 94 ms 99344 KB Output is correct
9 Correct 87 ms 99344 KB Output is correct
10 Correct 87 ms 99400 KB Output is correct
11 Correct 89 ms 99400 KB Output is correct
12 Correct 84 ms 99400 KB Output is correct
13 Correct 79 ms 99400 KB Output is correct
14 Correct 80 ms 99400 KB Output is correct
15 Correct 82 ms 99400 KB Output is correct
16 Correct 82 ms 99400 KB Output is correct
17 Correct 84 ms 99400 KB Output is correct
18 Correct 84 ms 99400 KB Output is correct
19 Correct 89 ms 99400 KB Output is correct
20 Correct 84 ms 99400 KB Output is correct
21 Correct 148 ms 99400 KB Output is correct
22 Correct 88 ms 99400 KB Output is correct
23 Correct 119 ms 99448 KB Output is correct
24 Correct 100 ms 99448 KB Output is correct
25 Correct 90 ms 99580 KB Output is correct
26 Correct 82 ms 99580 KB Output is correct
27 Correct 80 ms 99580 KB Output is correct
28 Correct 82 ms 99580 KB Output is correct
29 Correct 85 ms 99580 KB Output is correct
30 Correct 80 ms 99580 KB Output is correct
31 Correct 916 ms 168952 KB Output is correct
32 Correct 112 ms 168952 KB Output is correct
33 Correct 892 ms 168952 KB Output is correct
34 Correct 794 ms 168952 KB Output is correct
35 Correct 993 ms 169612 KB Output is correct
36 Correct 999 ms 169764 KB Output is correct
37 Correct 612 ms 169764 KB Output is correct
38 Correct 557 ms 169764 KB Output is correct
39 Correct 468 ms 169764 KB Output is correct
40 Correct 469 ms 169764 KB Output is correct
41 Correct 579 ms 169764 KB Output is correct
42 Correct 537 ms 169764 KB Output is correct
43 Correct 102 ms 169764 KB Output is correct
44 Correct 549 ms 169764 KB Output is correct
45 Correct 497 ms 169764 KB Output is correct
46 Correct 487 ms 169764 KB Output is correct
47 Correct 290 ms 169764 KB Output is correct
48 Correct 288 ms 169764 KB Output is correct
49 Correct 352 ms 169764 KB Output is correct
50 Correct 357 ms 169764 KB Output is correct
51 Correct 318 ms 169764 KB Output is correct
52 Correct 1601 ms 252112 KB Output is correct
53 Correct 2121 ms 253564 KB Output is correct
54 Correct 1361 ms 253564 KB Output is correct
55 Correct 1439 ms 253564 KB Output is correct
56 Correct 2133 ms 273496 KB Output is correct
57 Correct 1913 ms 273496 KB Output is correct
58 Correct 1774 ms 273496 KB Output is correct
59 Correct 1471 ms 273496 KB Output is correct
60 Correct 1641 ms 276688 KB Output is correct
61 Correct 1709 ms 276688 KB Output is correct
62 Correct 1036 ms 276688 KB Output is correct
63 Correct 1077 ms 276688 KB Output is correct
64 Correct 3880 ms 344636 KB Output is correct
65 Correct 244 ms 344636 KB Output is correct
66 Correct 4148 ms 365432 KB Output is correct
67 Correct 937 ms 365432 KB Output is correct
68 Correct 2186 ms 365432 KB Output is correct
69 Correct 1837 ms 365432 KB Output is correct
70 Correct 4163 ms 365432 KB Output is correct
71 Correct 4353 ms 365432 KB Output is correct
72 Correct 1309 ms 365432 KB Output is correct
73 Correct 2797 ms 365432 KB Output is correct
74 Correct 4411 ms 365432 KB Output is correct
75 Correct 4914 ms 365432 KB Output is correct
76 Correct 1694 ms 365432 KB Output is correct
77 Correct 1738 ms 365432 KB Output is correct
78 Correct 2005 ms 365432 KB Output is correct
79 Correct 2174 ms 365432 KB Output is correct
80 Correct 2183 ms 365432 KB Output is correct
81 Correct 291 ms 365432 KB Output is correct
82 Correct 324 ms 365432 KB Output is correct
83 Correct 493 ms 365432 KB Output is correct
84 Correct 498 ms 365432 KB Output is correct
85 Correct 460 ms 365432 KB Output is correct
86 Correct 678 ms 365432 KB Output is correct
87 Correct 640 ms 365432 KB Output is correct
88 Correct 472 ms 365432 KB Output is correct
89 Correct 640 ms 365432 KB Output is correct
90 Correct 186 ms 365432 KB Output is correct
91 Correct 352 ms 365432 KB Output is correct
92 Correct 528 ms 365432 KB Output is correct
93 Correct 604 ms 365432 KB Output is correct
94 Correct 719 ms 365432 KB Output is correct
95 Correct 707 ms 365432 KB Output is correct
96 Correct 181 ms 365432 KB Output is correct
97 Correct 1766 ms 365432 KB Output is correct
98 Correct 256 ms 365432 KB Output is correct
99 Execution timed out 5036 ms 459512 KB Time limit exceeded
100 Halted 0 ms 0 KB -