Submission #49720

# Submission time Handle Problem Language Result Execution time Memory
49720 2018-06-02T10:10:08 Z gs13105 New Home (APIO18_new_home) C++17
80 / 100
5000 ms 448032 KB
//#pragma GCC optimize ("O3")

#include <cstdio>
#include <cassert>
#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;
            }

            if(next(it) != loc[e.d].end())
            {
                int x = next(it)->first;
                pos &q = next(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++)
                    {
                        assert(!chk[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:323:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(p2 < mem[x].q.size())
                   ~~~^~~~~~~~~~~~~~~~~
new_home.cpp:325:23: 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:344:23: 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:104:10: 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 85 ms 98808 KB Output is correct
2 Correct 79 ms 98936 KB Output is correct
3 Correct 79 ms 99120 KB Output is correct
4 Correct 80 ms 99196 KB Output is correct
5 Correct 79 ms 99196 KB Output is correct
6 Correct 82 ms 99276 KB Output is correct
7 Correct 85 ms 99276 KB Output is correct
8 Correct 81 ms 99324 KB Output is correct
9 Correct 80 ms 99324 KB Output is correct
10 Correct 87 ms 99508 KB Output is correct
11 Correct 84 ms 99528 KB Output is correct
12 Correct 81 ms 99528 KB Output is correct
13 Correct 81 ms 99528 KB Output is correct
14 Correct 80 ms 99528 KB Output is correct
15 Correct 84 ms 99528 KB Output is correct
16 Correct 82 ms 99528 KB Output is correct
17 Correct 82 ms 99528 KB Output is correct
18 Correct 89 ms 99528 KB Output is correct
19 Correct 81 ms 99528 KB Output is correct
20 Correct 80 ms 99528 KB Output is correct
21 Correct 102 ms 99528 KB Output is correct
22 Correct 92 ms 99528 KB Output is correct
23 Correct 84 ms 99528 KB Output is correct
24 Correct 83 ms 99528 KB Output is correct
25 Correct 82 ms 99528 KB Output is correct
26 Correct 91 ms 99528 KB Output is correct
27 Correct 86 ms 99528 KB Output is correct
28 Correct 93 ms 99528 KB Output is correct
29 Correct 86 ms 99528 KB Output is correct
30 Correct 87 ms 99528 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 85 ms 98808 KB Output is correct
2 Correct 79 ms 98936 KB Output is correct
3 Correct 79 ms 99120 KB Output is correct
4 Correct 80 ms 99196 KB Output is correct
5 Correct 79 ms 99196 KB Output is correct
6 Correct 82 ms 99276 KB Output is correct
7 Correct 85 ms 99276 KB Output is correct
8 Correct 81 ms 99324 KB Output is correct
9 Correct 80 ms 99324 KB Output is correct
10 Correct 87 ms 99508 KB Output is correct
11 Correct 84 ms 99528 KB Output is correct
12 Correct 81 ms 99528 KB Output is correct
13 Correct 81 ms 99528 KB Output is correct
14 Correct 80 ms 99528 KB Output is correct
15 Correct 84 ms 99528 KB Output is correct
16 Correct 82 ms 99528 KB Output is correct
17 Correct 82 ms 99528 KB Output is correct
18 Correct 89 ms 99528 KB Output is correct
19 Correct 81 ms 99528 KB Output is correct
20 Correct 80 ms 99528 KB Output is correct
21 Correct 102 ms 99528 KB Output is correct
22 Correct 92 ms 99528 KB Output is correct
23 Correct 84 ms 99528 KB Output is correct
24 Correct 83 ms 99528 KB Output is correct
25 Correct 82 ms 99528 KB Output is correct
26 Correct 91 ms 99528 KB Output is correct
27 Correct 86 ms 99528 KB Output is correct
28 Correct 93 ms 99528 KB Output is correct
29 Correct 86 ms 99528 KB Output is correct
30 Correct 87 ms 99528 KB Output is correct
31 Correct 953 ms 168812 KB Output is correct
32 Correct 117 ms 168812 KB Output is correct
33 Correct 893 ms 168812 KB Output is correct
34 Correct 848 ms 168812 KB Output is correct
35 Correct 968 ms 169740 KB Output is correct
36 Correct 982 ms 169940 KB Output is correct
37 Correct 638 ms 169940 KB Output is correct
38 Correct 591 ms 169940 KB Output is correct
39 Correct 491 ms 169940 KB Output is correct
40 Correct 550 ms 169940 KB Output is correct
41 Correct 587 ms 169940 KB Output is correct
42 Correct 528 ms 169940 KB Output is correct
43 Correct 107 ms 169940 KB Output is correct
44 Correct 551 ms 169940 KB Output is correct
45 Correct 534 ms 169940 KB Output is correct
46 Correct 435 ms 169940 KB Output is correct
47 Correct 289 ms 169940 KB Output is correct
48 Correct 272 ms 169940 KB Output is correct
49 Correct 326 ms 169940 KB Output is correct
50 Correct 364 ms 169940 KB Output is correct
51 Correct 321 ms 169940 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1623 ms 252100 KB Output is correct
2 Correct 1777 ms 253788 KB Output is correct
3 Correct 1732 ms 253788 KB Output is correct
4 Correct 1729 ms 253788 KB Output is correct
5 Correct 2352 ms 273540 KB Output is correct
6 Correct 1822 ms 273540 KB Output is correct
7 Correct 1434 ms 273540 KB Output is correct
8 Correct 1495 ms 273540 KB Output is correct
9 Correct 1562 ms 276852 KB Output is correct
10 Correct 1762 ms 276852 KB Output is correct
11 Correct 983 ms 276852 KB Output is correct
12 Correct 1144 ms 276852 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 4634 ms 344668 KB Output is correct
2 Correct 259 ms 344668 KB Output is correct
3 Correct 4530 ms 365260 KB Output is correct
4 Correct 930 ms 365260 KB Output is correct
5 Correct 2318 ms 365260 KB Output is correct
6 Correct 2207 ms 365260 KB Output is correct
7 Correct 4759 ms 365260 KB Output is correct
8 Correct 4994 ms 365260 KB Output is correct
9 Correct 1618 ms 365260 KB Output is correct
10 Correct 3182 ms 365260 KB Output is correct
11 Correct 4127 ms 365260 KB Output is correct
12 Correct 4843 ms 365400 KB Output is correct
13 Correct 1670 ms 365400 KB Output is correct
14 Correct 1673 ms 365400 KB Output is correct
15 Correct 2178 ms 365400 KB Output is correct
16 Correct 2149 ms 365400 KB Output is correct
17 Correct 2209 ms 365400 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 85 ms 98808 KB Output is correct
2 Correct 79 ms 98936 KB Output is correct
3 Correct 79 ms 99120 KB Output is correct
4 Correct 80 ms 99196 KB Output is correct
5 Correct 79 ms 99196 KB Output is correct
6 Correct 82 ms 99276 KB Output is correct
7 Correct 85 ms 99276 KB Output is correct
8 Correct 81 ms 99324 KB Output is correct
9 Correct 80 ms 99324 KB Output is correct
10 Correct 87 ms 99508 KB Output is correct
11 Correct 84 ms 99528 KB Output is correct
12 Correct 81 ms 99528 KB Output is correct
13 Correct 81 ms 99528 KB Output is correct
14 Correct 80 ms 99528 KB Output is correct
15 Correct 84 ms 99528 KB Output is correct
16 Correct 82 ms 99528 KB Output is correct
17 Correct 82 ms 99528 KB Output is correct
18 Correct 89 ms 99528 KB Output is correct
19 Correct 81 ms 99528 KB Output is correct
20 Correct 80 ms 99528 KB Output is correct
21 Correct 102 ms 99528 KB Output is correct
22 Correct 92 ms 99528 KB Output is correct
23 Correct 84 ms 99528 KB Output is correct
24 Correct 83 ms 99528 KB Output is correct
25 Correct 82 ms 99528 KB Output is correct
26 Correct 91 ms 99528 KB Output is correct
27 Correct 86 ms 99528 KB Output is correct
28 Correct 93 ms 99528 KB Output is correct
29 Correct 86 ms 99528 KB Output is correct
30 Correct 87 ms 99528 KB Output is correct
31 Correct 953 ms 168812 KB Output is correct
32 Correct 117 ms 168812 KB Output is correct
33 Correct 893 ms 168812 KB Output is correct
34 Correct 848 ms 168812 KB Output is correct
35 Correct 968 ms 169740 KB Output is correct
36 Correct 982 ms 169940 KB Output is correct
37 Correct 638 ms 169940 KB Output is correct
38 Correct 591 ms 169940 KB Output is correct
39 Correct 491 ms 169940 KB Output is correct
40 Correct 550 ms 169940 KB Output is correct
41 Correct 587 ms 169940 KB Output is correct
42 Correct 528 ms 169940 KB Output is correct
43 Correct 107 ms 169940 KB Output is correct
44 Correct 551 ms 169940 KB Output is correct
45 Correct 534 ms 169940 KB Output is correct
46 Correct 435 ms 169940 KB Output is correct
47 Correct 289 ms 169940 KB Output is correct
48 Correct 272 ms 169940 KB Output is correct
49 Correct 326 ms 169940 KB Output is correct
50 Correct 364 ms 169940 KB Output is correct
51 Correct 321 ms 169940 KB Output is correct
52 Correct 344 ms 365400 KB Output is correct
53 Correct 329 ms 365400 KB Output is correct
54 Correct 564 ms 365400 KB Output is correct
55 Correct 514 ms 365400 KB Output is correct
56 Correct 495 ms 365400 KB Output is correct
57 Correct 601 ms 365400 KB Output is correct
58 Correct 496 ms 365400 KB Output is correct
59 Correct 513 ms 365400 KB Output is correct
60 Correct 611 ms 365400 KB Output is correct
61 Correct 117 ms 365400 KB Output is correct
62 Correct 325 ms 365400 KB Output is correct
63 Correct 536 ms 365400 KB Output is correct
64 Correct 516 ms 365400 KB Output is correct
65 Correct 594 ms 365400 KB Output is correct
66 Correct 698 ms 365400 KB Output is correct
67 Correct 185 ms 365400 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 85 ms 98808 KB Output is correct
2 Correct 79 ms 98936 KB Output is correct
3 Correct 79 ms 99120 KB Output is correct
4 Correct 80 ms 99196 KB Output is correct
5 Correct 79 ms 99196 KB Output is correct
6 Correct 82 ms 99276 KB Output is correct
7 Correct 85 ms 99276 KB Output is correct
8 Correct 81 ms 99324 KB Output is correct
9 Correct 80 ms 99324 KB Output is correct
10 Correct 87 ms 99508 KB Output is correct
11 Correct 84 ms 99528 KB Output is correct
12 Correct 81 ms 99528 KB Output is correct
13 Correct 81 ms 99528 KB Output is correct
14 Correct 80 ms 99528 KB Output is correct
15 Correct 84 ms 99528 KB Output is correct
16 Correct 82 ms 99528 KB Output is correct
17 Correct 82 ms 99528 KB Output is correct
18 Correct 89 ms 99528 KB Output is correct
19 Correct 81 ms 99528 KB Output is correct
20 Correct 80 ms 99528 KB Output is correct
21 Correct 102 ms 99528 KB Output is correct
22 Correct 92 ms 99528 KB Output is correct
23 Correct 84 ms 99528 KB Output is correct
24 Correct 83 ms 99528 KB Output is correct
25 Correct 82 ms 99528 KB Output is correct
26 Correct 91 ms 99528 KB Output is correct
27 Correct 86 ms 99528 KB Output is correct
28 Correct 93 ms 99528 KB Output is correct
29 Correct 86 ms 99528 KB Output is correct
30 Correct 87 ms 99528 KB Output is correct
31 Correct 953 ms 168812 KB Output is correct
32 Correct 117 ms 168812 KB Output is correct
33 Correct 893 ms 168812 KB Output is correct
34 Correct 848 ms 168812 KB Output is correct
35 Correct 968 ms 169740 KB Output is correct
36 Correct 982 ms 169940 KB Output is correct
37 Correct 638 ms 169940 KB Output is correct
38 Correct 591 ms 169940 KB Output is correct
39 Correct 491 ms 169940 KB Output is correct
40 Correct 550 ms 169940 KB Output is correct
41 Correct 587 ms 169940 KB Output is correct
42 Correct 528 ms 169940 KB Output is correct
43 Correct 107 ms 169940 KB Output is correct
44 Correct 551 ms 169940 KB Output is correct
45 Correct 534 ms 169940 KB Output is correct
46 Correct 435 ms 169940 KB Output is correct
47 Correct 289 ms 169940 KB Output is correct
48 Correct 272 ms 169940 KB Output is correct
49 Correct 326 ms 169940 KB Output is correct
50 Correct 364 ms 169940 KB Output is correct
51 Correct 321 ms 169940 KB Output is correct
52 Correct 1623 ms 252100 KB Output is correct
53 Correct 1777 ms 253788 KB Output is correct
54 Correct 1732 ms 253788 KB Output is correct
55 Correct 1729 ms 253788 KB Output is correct
56 Correct 2352 ms 273540 KB Output is correct
57 Correct 1822 ms 273540 KB Output is correct
58 Correct 1434 ms 273540 KB Output is correct
59 Correct 1495 ms 273540 KB Output is correct
60 Correct 1562 ms 276852 KB Output is correct
61 Correct 1762 ms 276852 KB Output is correct
62 Correct 983 ms 276852 KB Output is correct
63 Correct 1144 ms 276852 KB Output is correct
64 Correct 4634 ms 344668 KB Output is correct
65 Correct 259 ms 344668 KB Output is correct
66 Correct 4530 ms 365260 KB Output is correct
67 Correct 930 ms 365260 KB Output is correct
68 Correct 2318 ms 365260 KB Output is correct
69 Correct 2207 ms 365260 KB Output is correct
70 Correct 4759 ms 365260 KB Output is correct
71 Correct 4994 ms 365260 KB Output is correct
72 Correct 1618 ms 365260 KB Output is correct
73 Correct 3182 ms 365260 KB Output is correct
74 Correct 4127 ms 365260 KB Output is correct
75 Correct 4843 ms 365400 KB Output is correct
76 Correct 1670 ms 365400 KB Output is correct
77 Correct 1673 ms 365400 KB Output is correct
78 Correct 2178 ms 365400 KB Output is correct
79 Correct 2149 ms 365400 KB Output is correct
80 Correct 2209 ms 365400 KB Output is correct
81 Correct 344 ms 365400 KB Output is correct
82 Correct 329 ms 365400 KB Output is correct
83 Correct 564 ms 365400 KB Output is correct
84 Correct 514 ms 365400 KB Output is correct
85 Correct 495 ms 365400 KB Output is correct
86 Correct 601 ms 365400 KB Output is correct
87 Correct 496 ms 365400 KB Output is correct
88 Correct 513 ms 365400 KB Output is correct
89 Correct 611 ms 365400 KB Output is correct
90 Correct 117 ms 365400 KB Output is correct
91 Correct 325 ms 365400 KB Output is correct
92 Correct 536 ms 365400 KB Output is correct
93 Correct 516 ms 365400 KB Output is correct
94 Correct 594 ms 365400 KB Output is correct
95 Correct 698 ms 365400 KB Output is correct
96 Correct 185 ms 365400 KB Output is correct
97 Correct 2052 ms 365400 KB Output is correct
98 Correct 290 ms 365400 KB Output is correct
99 Execution timed out 5055 ms 448032 KB Time limit exceeded
100 Halted 0 ms 0 KB -