Submission #49744

# Submission time Handle Problem Language Result Execution time Memory
49744 2018-06-02T14:13:55 Z gs13105 New Home (APIO18_new_home) C++17
80 / 100
5000 ms 470136 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();

    n *= 2;
    for(int i = 0; i < n; i += 2)
    {
        int x, t, a, b;
        x = _readInt();
        t = _readInt();
        a = _readInt();
        b = _readInt();
        arr[i] = { a, x, t };
        arr[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 + n);
    int cur, cnt = 0;
    for(int u = 0; u < 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:322:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(p2 < mem[x].q.size())
                   ~~~^~~~~~~~~~~~~~~~~
new_home.cpp:324:23: 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:343:23: 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 78 ms 98808 KB Output is correct
2 Correct 79 ms 98932 KB Output is correct
3 Correct 79 ms 99008 KB Output is correct
4 Correct 77 ms 99008 KB Output is correct
5 Correct 80 ms 99040 KB Output is correct
6 Correct 98 ms 99332 KB Output is correct
7 Correct 91 ms 99332 KB Output is correct
8 Correct 84 ms 99336 KB Output is correct
9 Correct 91 ms 99336 KB Output is correct
10 Correct 84 ms 99336 KB Output is correct
11 Correct 100 ms 99336 KB Output is correct
12 Correct 85 ms 99336 KB Output is correct
13 Correct 87 ms 99336 KB Output is correct
14 Correct 86 ms 99336 KB Output is correct
15 Correct 90 ms 99336 KB Output is correct
16 Correct 79 ms 99336 KB Output is correct
17 Correct 85 ms 99376 KB Output is correct
18 Correct 85 ms 99376 KB Output is correct
19 Correct 89 ms 99376 KB Output is correct
20 Correct 94 ms 99376 KB Output is correct
21 Correct 91 ms 99376 KB Output is correct
22 Correct 134 ms 99376 KB Output is correct
23 Correct 81 ms 99436 KB Output is correct
24 Correct 79 ms 99436 KB Output is correct
25 Correct 80 ms 99436 KB Output is correct
26 Correct 80 ms 99436 KB Output is correct
27 Correct 80 ms 99436 KB Output is correct
28 Correct 80 ms 99436 KB Output is correct
29 Correct 79 ms 99436 KB Output is correct
30 Correct 80 ms 99436 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 78 ms 98808 KB Output is correct
2 Correct 79 ms 98932 KB Output is correct
3 Correct 79 ms 99008 KB Output is correct
4 Correct 77 ms 99008 KB Output is correct
5 Correct 80 ms 99040 KB Output is correct
6 Correct 98 ms 99332 KB Output is correct
7 Correct 91 ms 99332 KB Output is correct
8 Correct 84 ms 99336 KB Output is correct
9 Correct 91 ms 99336 KB Output is correct
10 Correct 84 ms 99336 KB Output is correct
11 Correct 100 ms 99336 KB Output is correct
12 Correct 85 ms 99336 KB Output is correct
13 Correct 87 ms 99336 KB Output is correct
14 Correct 86 ms 99336 KB Output is correct
15 Correct 90 ms 99336 KB Output is correct
16 Correct 79 ms 99336 KB Output is correct
17 Correct 85 ms 99376 KB Output is correct
18 Correct 85 ms 99376 KB Output is correct
19 Correct 89 ms 99376 KB Output is correct
20 Correct 94 ms 99376 KB Output is correct
21 Correct 91 ms 99376 KB Output is correct
22 Correct 134 ms 99376 KB Output is correct
23 Correct 81 ms 99436 KB Output is correct
24 Correct 79 ms 99436 KB Output is correct
25 Correct 80 ms 99436 KB Output is correct
26 Correct 80 ms 99436 KB Output is correct
27 Correct 80 ms 99436 KB Output is correct
28 Correct 80 ms 99436 KB Output is correct
29 Correct 79 ms 99436 KB Output is correct
30 Correct 80 ms 99436 KB Output is correct
31 Correct 968 ms 168920 KB Output is correct
32 Correct 114 ms 168920 KB Output is correct
33 Correct 834 ms 168920 KB Output is correct
34 Correct 817 ms 168920 KB Output is correct
35 Correct 866 ms 169596 KB Output is correct
36 Correct 1080 ms 169952 KB Output is correct
37 Correct 624 ms 169952 KB Output is correct
38 Correct 732 ms 169952 KB Output is correct
39 Correct 512 ms 169952 KB Output is correct
40 Correct 541 ms 169952 KB Output is correct
41 Correct 709 ms 169952 KB Output is correct
42 Correct 496 ms 169952 KB Output is correct
43 Correct 103 ms 169952 KB Output is correct
44 Correct 557 ms 169952 KB Output is correct
45 Correct 468 ms 169952 KB Output is correct
46 Correct 441 ms 169952 KB Output is correct
47 Correct 309 ms 169952 KB Output is correct
48 Correct 283 ms 169952 KB Output is correct
49 Correct 369 ms 169952 KB Output is correct
50 Correct 395 ms 169952 KB Output is correct
51 Correct 413 ms 169952 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1727 ms 252160 KB Output is correct
2 Correct 1834 ms 253704 KB Output is correct
3 Correct 1649 ms 253704 KB Output is correct
4 Correct 1650 ms 253704 KB Output is correct
5 Correct 2110 ms 273676 KB Output is correct
6 Correct 1892 ms 273676 KB Output is correct
7 Correct 1374 ms 273676 KB Output is correct
8 Correct 1453 ms 273676 KB Output is correct
9 Correct 1589 ms 276820 KB Output is correct
10 Correct 1707 ms 276820 KB Output is correct
11 Correct 1014 ms 276820 KB Output is correct
12 Correct 1145 ms 276820 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 4440 ms 344636 KB Output is correct
2 Correct 237 ms 344636 KB Output is correct
3 Correct 4445 ms 365272 KB Output is correct
4 Correct 906 ms 365272 KB Output is correct
5 Correct 2418 ms 365272 KB Output is correct
6 Correct 2074 ms 365272 KB Output is correct
7 Correct 4534 ms 365272 KB Output is correct
8 Correct 4708 ms 365272 KB Output is correct
9 Correct 1507 ms 365272 KB Output is correct
10 Correct 3001 ms 365272 KB Output is correct
11 Correct 4054 ms 365272 KB Output is correct
12 Correct 4345 ms 365344 KB Output is correct
13 Correct 1741 ms 365344 KB Output is correct
14 Correct 1656 ms 365344 KB Output is correct
15 Correct 2178 ms 365344 KB Output is correct
16 Correct 2254 ms 365344 KB Output is correct
17 Correct 2217 ms 365344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 78 ms 98808 KB Output is correct
2 Correct 79 ms 98932 KB Output is correct
3 Correct 79 ms 99008 KB Output is correct
4 Correct 77 ms 99008 KB Output is correct
5 Correct 80 ms 99040 KB Output is correct
6 Correct 98 ms 99332 KB Output is correct
7 Correct 91 ms 99332 KB Output is correct
8 Correct 84 ms 99336 KB Output is correct
9 Correct 91 ms 99336 KB Output is correct
10 Correct 84 ms 99336 KB Output is correct
11 Correct 100 ms 99336 KB Output is correct
12 Correct 85 ms 99336 KB Output is correct
13 Correct 87 ms 99336 KB Output is correct
14 Correct 86 ms 99336 KB Output is correct
15 Correct 90 ms 99336 KB Output is correct
16 Correct 79 ms 99336 KB Output is correct
17 Correct 85 ms 99376 KB Output is correct
18 Correct 85 ms 99376 KB Output is correct
19 Correct 89 ms 99376 KB Output is correct
20 Correct 94 ms 99376 KB Output is correct
21 Correct 91 ms 99376 KB Output is correct
22 Correct 134 ms 99376 KB Output is correct
23 Correct 81 ms 99436 KB Output is correct
24 Correct 79 ms 99436 KB Output is correct
25 Correct 80 ms 99436 KB Output is correct
26 Correct 80 ms 99436 KB Output is correct
27 Correct 80 ms 99436 KB Output is correct
28 Correct 80 ms 99436 KB Output is correct
29 Correct 79 ms 99436 KB Output is correct
30 Correct 80 ms 99436 KB Output is correct
31 Correct 968 ms 168920 KB Output is correct
32 Correct 114 ms 168920 KB Output is correct
33 Correct 834 ms 168920 KB Output is correct
34 Correct 817 ms 168920 KB Output is correct
35 Correct 866 ms 169596 KB Output is correct
36 Correct 1080 ms 169952 KB Output is correct
37 Correct 624 ms 169952 KB Output is correct
38 Correct 732 ms 169952 KB Output is correct
39 Correct 512 ms 169952 KB Output is correct
40 Correct 541 ms 169952 KB Output is correct
41 Correct 709 ms 169952 KB Output is correct
42 Correct 496 ms 169952 KB Output is correct
43 Correct 103 ms 169952 KB Output is correct
44 Correct 557 ms 169952 KB Output is correct
45 Correct 468 ms 169952 KB Output is correct
46 Correct 441 ms 169952 KB Output is correct
47 Correct 309 ms 169952 KB Output is correct
48 Correct 283 ms 169952 KB Output is correct
49 Correct 369 ms 169952 KB Output is correct
50 Correct 395 ms 169952 KB Output is correct
51 Correct 413 ms 169952 KB Output is correct
52 Correct 393 ms 365344 KB Output is correct
53 Correct 332 ms 365344 KB Output is correct
54 Correct 512 ms 365344 KB Output is correct
55 Correct 508 ms 365344 KB Output is correct
56 Correct 473 ms 365344 KB Output is correct
57 Correct 583 ms 365344 KB Output is correct
58 Correct 536 ms 365344 KB Output is correct
59 Correct 568 ms 365344 KB Output is correct
60 Correct 548 ms 365344 KB Output is correct
61 Correct 115 ms 365344 KB Output is correct
62 Correct 305 ms 365344 KB Output is correct
63 Correct 451 ms 365344 KB Output is correct
64 Correct 598 ms 365344 KB Output is correct
65 Correct 742 ms 365344 KB Output is correct
66 Correct 726 ms 365344 KB Output is correct
67 Correct 177 ms 365344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 78 ms 98808 KB Output is correct
2 Correct 79 ms 98932 KB Output is correct
3 Correct 79 ms 99008 KB Output is correct
4 Correct 77 ms 99008 KB Output is correct
5 Correct 80 ms 99040 KB Output is correct
6 Correct 98 ms 99332 KB Output is correct
7 Correct 91 ms 99332 KB Output is correct
8 Correct 84 ms 99336 KB Output is correct
9 Correct 91 ms 99336 KB Output is correct
10 Correct 84 ms 99336 KB Output is correct
11 Correct 100 ms 99336 KB Output is correct
12 Correct 85 ms 99336 KB Output is correct
13 Correct 87 ms 99336 KB Output is correct
14 Correct 86 ms 99336 KB Output is correct
15 Correct 90 ms 99336 KB Output is correct
16 Correct 79 ms 99336 KB Output is correct
17 Correct 85 ms 99376 KB Output is correct
18 Correct 85 ms 99376 KB Output is correct
19 Correct 89 ms 99376 KB Output is correct
20 Correct 94 ms 99376 KB Output is correct
21 Correct 91 ms 99376 KB Output is correct
22 Correct 134 ms 99376 KB Output is correct
23 Correct 81 ms 99436 KB Output is correct
24 Correct 79 ms 99436 KB Output is correct
25 Correct 80 ms 99436 KB Output is correct
26 Correct 80 ms 99436 KB Output is correct
27 Correct 80 ms 99436 KB Output is correct
28 Correct 80 ms 99436 KB Output is correct
29 Correct 79 ms 99436 KB Output is correct
30 Correct 80 ms 99436 KB Output is correct
31 Correct 968 ms 168920 KB Output is correct
32 Correct 114 ms 168920 KB Output is correct
33 Correct 834 ms 168920 KB Output is correct
34 Correct 817 ms 168920 KB Output is correct
35 Correct 866 ms 169596 KB Output is correct
36 Correct 1080 ms 169952 KB Output is correct
37 Correct 624 ms 169952 KB Output is correct
38 Correct 732 ms 169952 KB Output is correct
39 Correct 512 ms 169952 KB Output is correct
40 Correct 541 ms 169952 KB Output is correct
41 Correct 709 ms 169952 KB Output is correct
42 Correct 496 ms 169952 KB Output is correct
43 Correct 103 ms 169952 KB Output is correct
44 Correct 557 ms 169952 KB Output is correct
45 Correct 468 ms 169952 KB Output is correct
46 Correct 441 ms 169952 KB Output is correct
47 Correct 309 ms 169952 KB Output is correct
48 Correct 283 ms 169952 KB Output is correct
49 Correct 369 ms 169952 KB Output is correct
50 Correct 395 ms 169952 KB Output is correct
51 Correct 413 ms 169952 KB Output is correct
52 Correct 1727 ms 252160 KB Output is correct
53 Correct 1834 ms 253704 KB Output is correct
54 Correct 1649 ms 253704 KB Output is correct
55 Correct 1650 ms 253704 KB Output is correct
56 Correct 2110 ms 273676 KB Output is correct
57 Correct 1892 ms 273676 KB Output is correct
58 Correct 1374 ms 273676 KB Output is correct
59 Correct 1453 ms 273676 KB Output is correct
60 Correct 1589 ms 276820 KB Output is correct
61 Correct 1707 ms 276820 KB Output is correct
62 Correct 1014 ms 276820 KB Output is correct
63 Correct 1145 ms 276820 KB Output is correct
64 Correct 4440 ms 344636 KB Output is correct
65 Correct 237 ms 344636 KB Output is correct
66 Correct 4445 ms 365272 KB Output is correct
67 Correct 906 ms 365272 KB Output is correct
68 Correct 2418 ms 365272 KB Output is correct
69 Correct 2074 ms 365272 KB Output is correct
70 Correct 4534 ms 365272 KB Output is correct
71 Correct 4708 ms 365272 KB Output is correct
72 Correct 1507 ms 365272 KB Output is correct
73 Correct 3001 ms 365272 KB Output is correct
74 Correct 4054 ms 365272 KB Output is correct
75 Correct 4345 ms 365344 KB Output is correct
76 Correct 1741 ms 365344 KB Output is correct
77 Correct 1656 ms 365344 KB Output is correct
78 Correct 2178 ms 365344 KB Output is correct
79 Correct 2254 ms 365344 KB Output is correct
80 Correct 2217 ms 365344 KB Output is correct
81 Correct 393 ms 365344 KB Output is correct
82 Correct 332 ms 365344 KB Output is correct
83 Correct 512 ms 365344 KB Output is correct
84 Correct 508 ms 365344 KB Output is correct
85 Correct 473 ms 365344 KB Output is correct
86 Correct 583 ms 365344 KB Output is correct
87 Correct 536 ms 365344 KB Output is correct
88 Correct 568 ms 365344 KB Output is correct
89 Correct 548 ms 365344 KB Output is correct
90 Correct 115 ms 365344 KB Output is correct
91 Correct 305 ms 365344 KB Output is correct
92 Correct 451 ms 365344 KB Output is correct
93 Correct 598 ms 365344 KB Output is correct
94 Correct 742 ms 365344 KB Output is correct
95 Correct 726 ms 365344 KB Output is correct
96 Correct 177 ms 365344 KB Output is correct
97 Correct 1696 ms 365344 KB Output is correct
98 Correct 252 ms 365344 KB Output is correct
99 Execution timed out 5024 ms 470136 KB Time limit exceeded
100 Halted 0 ms 0 KB -