oj.uz

Submission #49708

# Submission time Handle Problem Language Result Execution time Memory
49708 2018-06-02T09:24:01 Z gs13105 New Home (APIO18_new_home) C++17
80 / 100
 5000 ms 439944 KB 
#pragma GCC optimize ("Ofast")

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cassert>
#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <tuple>
#include <iterator>

using namespace std;

const int INF = 100000000;

static char buf[33554432]; // size : any number geq than 1024 
static int fio_idx = 0;
static int bytes = 0;
static inline int _read() {
    if(!bytes || fio_idx == bytes) {
        bytes = (int)fread(buf, sizeof(buf[0]), sizeof(buf), stdin);
        fio_idx = 0;
    }
    return buf[fio_idx++];
}
static inline int _readInt() {
    int x = 0;
    int c = _read();
    while(c <= 32) c = _read();
    while(c > 32) x = 10 * x + (c - '0'), c = _read();
    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;
    }
};

vector<seg> sor[2];
inline void add_seg(int t1, int t2, int x, 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)
        sor[0].push_back({ nt1, nt2, y, x });
    else
        sor[1].push_back({ nt1, nt2, -y, -x });
}

struct ent
{
    // v0 : dec, v1 : inc, q : query
    // v : { x, y }
    // q : { x, i }
    vector<pair<int, int>> v[2];
    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()
{
    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++)
                        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;
    }

    for(int i = 0; i < 2; i++)
    {
        sort(sor[i].begin(), sor[i].end());
        for(seg &e : sor[i])
        {
            while(e.t1 < e.t2)
            {
                if(e.t1 % 2 == 1)
                {
                    mem[e.t1].v[i].push_back({ e.x, e.y });
                    e.t1++;
                }
                if(e.t2 % 2 == 0)
                {
                    mem[e.t2].v[i].push_back({ e.x, e.y });
                    e.t2--;
                }
                e.t1 /= 2;
                e.t2 /= 2;
            }
            if(e.t1 == e.t2)
                mem[e.t1].v[i].push_back({ e.x, e.y });
        }
    }

    for(int x = 1; x <= bp + c_sz - 1; x++)
    {
        int mx, p1, p2;
        {
            mx = p1 = p2 = 0;
            while(p2 < mem[x].q.size())
            {
                if(p1 != mem[x].v[0].size() && mem[x].v[0][p1].first <= mem[x].q[p2].first)
                {
                    mx = max(mx, mem[x].v[0][p1].second);
                    p1++;
                }
                else
                {
                    ans[mem[x].q[p2].second] = max(ans[mem[x].q[p2].second], mx - mem[x].q[p2].first);
                    p2++;
                }
            }
        }
        {
            mx = -INF;
            p1 = 0;
            p2 = mem[x].q.size() - 1;
            while(p2 >= 0)
            {
                if(p1 != mem[x].v[1].size() && mem[x].v[1][p1].first <= -mem[x].q[p2].first)
                {
                    mx = max(mx, mem[x].v[1][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:307:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(p2 < mem[x].q.size())
                   ~~~^~~~~~~~~~~~~~~~~
new_home.cpp:309:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(p1 != mem[x].v[0].size() && mem[x].v[0][p1].first <= mem[x].q[p2].first)
                    ~~~^~~~~~~~~~~~~~~~~~~~~
new_home.cpp:327:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(p1 != mem[x].v[1].size() && mem[x].v[1][p1].first <= -mem[x].q[p2].first)
                    ~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 98772 KB Output is correct
2 Correct 85 ms 99048 KB Output is correct
3 Correct 85 ms 99048 KB Output is correct
4 Correct 87 ms 99132 KB Output is correct
5 Correct 88 ms 99184 KB Output is correct
6 Correct 87 ms 99276 KB Output is correct
7 Correct 87 ms 99276 KB Output is correct
8 Correct 107 ms 99276 KB Output is correct
9 Correct 86 ms 99276 KB Output is correct
10 Correct 93 ms 99340 KB Output is correct
11 Correct 90 ms 99340 KB Output is correct
12 Correct 87 ms 99340 KB Output is correct
13 Correct 87 ms 99340 KB Output is correct
14 Correct 86 ms 99340 KB Output is correct
15 Correct 93 ms 99340 KB Output is correct
16 Correct 86 ms 99340 KB Output is correct
17 Correct 92 ms 99356 KB Output is correct
18 Correct 94 ms 99356 KB Output is correct
19 Correct 104 ms 99356 KB Output is correct
20 Correct 94 ms 99428 KB Output is correct
21 Correct 89 ms 99428 KB Output is correct
22 Correct 99 ms 99428 KB Output is correct
23 Correct 96 ms 99428 KB Output is correct
24 Correct 96 ms 99428 KB Output is correct
25 Correct 92 ms 99428 KB Output is correct
26 Correct 92 ms 99436 KB Output is correct
27 Correct 94 ms 99436 KB Output is correct
28 Correct 108 ms 99436 KB Output is correct
29 Correct 92 ms 99436 KB Output is correct
30 Correct 95 ms 99436 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 98772 KB Output is correct
2 Correct 85 ms 99048 KB Output is correct
3 Correct 85 ms 99048 KB Output is correct
4 Correct 87 ms 99132 KB Output is correct
5 Correct 88 ms 99184 KB Output is correct
6 Correct 87 ms 99276 KB Output is correct
7 Correct 87 ms 99276 KB Output is correct
8 Correct 107 ms 99276 KB Output is correct
9 Correct 86 ms 99276 KB Output is correct
10 Correct 93 ms 99340 KB Output is correct
11 Correct 90 ms 99340 KB Output is correct
12 Correct 87 ms 99340 KB Output is correct
13 Correct 87 ms 99340 KB Output is correct
14 Correct 86 ms 99340 KB Output is correct
15 Correct 93 ms 99340 KB Output is correct
16 Correct 86 ms 99340 KB Output is correct
17 Correct 92 ms 99356 KB Output is correct
18 Correct 94 ms 99356 KB Output is correct
19 Correct 104 ms 99356 KB Output is correct
20 Correct 94 ms 99428 KB Output is correct
21 Correct 89 ms 99428 KB Output is correct
22 Correct 99 ms 99428 KB Output is correct
23 Correct 96 ms 99428 KB Output is correct
24 Correct 96 ms 99428 KB Output is correct
25 Correct 92 ms 99428 KB Output is correct
26 Correct 92 ms 99436 KB Output is correct
27 Correct 94 ms 99436 KB Output is correct
28 Correct 108 ms 99436 KB Output is correct
29 Correct 92 ms 99436 KB Output is correct
30 Correct 95 ms 99436 KB Output is correct
31 Correct 1157 ms 168924 KB Output is correct
32 Correct 132 ms 168924 KB Output is correct
33 Correct 1119 ms 168924 KB Output is correct
34 Correct 866 ms 168924 KB Output is correct
35 Correct 1134 ms 169624 KB Output is correct
36 Correct 961 ms 169908 KB Output is correct
37 Correct 615 ms 169908 KB Output is correct
38 Correct 672 ms 169908 KB Output is correct
39 Correct 514 ms 169908 KB Output is correct
40 Correct 515 ms 169908 KB Output is correct
41 Correct 686 ms 169908 KB Output is correct
42 Correct 590 ms 169908 KB Output is correct
43 Correct 126 ms 169908 KB Output is correct
44 Correct 607 ms 169908 KB Output is correct
45 Correct 666 ms 169908 KB Output is correct
46 Correct 502 ms 169908 KB Output is correct
47 Correct 308 ms 169908 KB Output is correct
48 Correct 284 ms 169908 KB Output is correct
49 Correct 347 ms 169908 KB Output is correct
50 Correct 391 ms 169908 KB Output is correct
51 Correct 391 ms 169908 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1933 ms 265048 KB Output is correct
2 Correct 2075 ms 265048 KB Output is correct
3 Correct 1757 ms 265048 KB Output is correct
4 Correct 1709 ms 265632 KB Output is correct
5 Correct 2260 ms 277720 KB Output is correct
6 Correct 1969 ms 277720 KB Output is correct
7 Correct 1839 ms 277720 KB Output is correct
8 Correct 1880 ms 277720 KB Output is correct
9 Correct 1909 ms 284320 KB Output is correct
10 Correct 1872 ms 284320 KB Output is correct
11 Correct 1203 ms 284320 KB Output is correct
12 Correct 1176 ms 284320 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4625 ms 346784 KB Output is correct
2 Correct 278 ms 346784 KB Output is correct
3 Correct 4655 ms 368068 KB Output is correct
4 Correct 975 ms 368068 KB Output is correct
5 Correct 2407 ms 368068 KB Output is correct
6 Correct 2249 ms 368068 KB Output is correct
7 Correct 4963 ms 368068 KB Output is correct
8 Correct 4848 ms 368068 KB Output is correct
9 Correct 1569 ms 368068 KB Output is correct
10 Correct 3141 ms 368068 KB Output is correct
11 Correct 4358 ms 368068 KB Output is correct
12 Correct 4761 ms 368068 KB Output is correct
13 Correct 1911 ms 368068 KB Output is correct
14 Correct 1747 ms 368068 KB Output is correct
15 Correct 2107 ms 368068 KB Output is correct
16 Correct 2334 ms 368068 KB Output is correct
17 Correct 2221 ms 368068 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 98772 KB Output is correct
2 Correct 85 ms 99048 KB Output is correct
3 Correct 85 ms 99048 KB Output is correct
4 Correct 87 ms 99132 KB Output is correct
5 Correct 88 ms 99184 KB Output is correct
6 Correct 87 ms 99276 KB Output is correct
7 Correct 87 ms 99276 KB Output is correct
8 Correct 107 ms 99276 KB Output is correct
9 Correct 86 ms 99276 KB Output is correct
10 Correct 93 ms 99340 KB Output is correct
11 Correct 90 ms 99340 KB Output is correct
12 Correct 87 ms 99340 KB Output is correct
13 Correct 87 ms 99340 KB Output is correct
14 Correct 86 ms 99340 KB Output is correct
15 Correct 93 ms 99340 KB Output is correct
16 Correct 86 ms 99340 KB Output is correct
17 Correct 92 ms 99356 KB Output is correct
18 Correct 94 ms 99356 KB Output is correct
19 Correct 104 ms 99356 KB Output is correct
20 Correct 94 ms 99428 KB Output is correct
21 Correct 89 ms 99428 KB Output is correct
22 Correct 99 ms 99428 KB Output is correct
23 Correct 96 ms 99428 KB Output is correct
24 Correct 96 ms 99428 KB Output is correct
25 Correct 92 ms 99428 KB Output is correct
26 Correct 92 ms 99436 KB Output is correct
27 Correct 94 ms 99436 KB Output is correct
28 Correct 108 ms 99436 KB Output is correct
29 Correct 92 ms 99436 KB Output is correct
30 Correct 95 ms 99436 KB Output is correct
31 Correct 1157 ms 168924 KB Output is correct
32 Correct 132 ms 168924 KB Output is correct
33 Correct 1119 ms 168924 KB Output is correct
34 Correct 866 ms 168924 KB Output is correct
35 Correct 1134 ms 169624 KB Output is correct
36 Correct 961 ms 169908 KB Output is correct
37 Correct 615 ms 169908 KB Output is correct
38 Correct 672 ms 169908 KB Output is correct
39 Correct 514 ms 169908 KB Output is correct
40 Correct 515 ms 169908 KB Output is correct
41 Correct 686 ms 169908 KB Output is correct
42 Correct 590 ms 169908 KB Output is correct
43 Correct 126 ms 169908 KB Output is correct
44 Correct 607 ms 169908 KB Output is correct
45 Correct 666 ms 169908 KB Output is correct
46 Correct 502 ms 169908 KB Output is correct
47 Correct 308 ms 169908 KB Output is correct
48 Correct 284 ms 169908 KB Output is correct
49 Correct 347 ms 169908 KB Output is correct
50 Correct 391 ms 169908 KB Output is correct
51 Correct 391 ms 169908 KB Output is correct
52 Correct 359 ms 368068 KB Output is correct
53 Correct 360 ms 368068 KB Output is correct
54 Correct 511 ms 368068 KB Output is correct
55 Correct 534 ms 368068 KB Output is correct
56 Correct 497 ms 368068 KB Output is correct
57 Correct 705 ms 368068 KB Output is correct
58 Correct 621 ms 368068 KB Output is correct
59 Correct 529 ms 368068 KB Output is correct
60 Correct 508 ms 368068 KB Output is correct
61 Correct 134 ms 368068 KB Output is correct
62 Correct 396 ms 368068 KB Output is correct
63 Correct 579 ms 368068 KB Output is correct
64 Correct 584 ms 368068 KB Output is correct
65 Correct 622 ms 368068 KB Output is correct
66 Correct 685 ms 368068 KB Output is correct
67 Correct 175 ms 368068 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 98772 KB Output is correct
2 Correct 85 ms 99048 KB Output is correct
3 Correct 85 ms 99048 KB Output is correct
4 Correct 87 ms 99132 KB Output is correct
5 Correct 88 ms 99184 KB Output is correct
6 Correct 87 ms 99276 KB Output is correct
7 Correct 87 ms 99276 KB Output is correct
8 Correct 107 ms 99276 KB Output is correct
9 Correct 86 ms 99276 KB Output is correct
10 Correct 93 ms 99340 KB Output is correct
11 Correct 90 ms 99340 KB Output is correct
12 Correct 87 ms 99340 KB Output is correct
13 Correct 87 ms 99340 KB Output is correct
14 Correct 86 ms 99340 KB Output is correct
15 Correct 93 ms 99340 KB Output is correct
16 Correct 86 ms 99340 KB Output is correct
17 Correct 92 ms 99356 KB Output is correct
18 Correct 94 ms 99356 KB Output is correct
19 Correct 104 ms 99356 KB Output is correct
20 Correct 94 ms 99428 KB Output is correct
21 Correct 89 ms 99428 KB Output is correct
22 Correct 99 ms 99428 KB Output is correct
23 Correct 96 ms 99428 KB Output is correct
24 Correct 96 ms 99428 KB Output is correct
25 Correct 92 ms 99428 KB Output is correct
26 Correct 92 ms 99436 KB Output is correct
27 Correct 94 ms 99436 KB Output is correct
28 Correct 108 ms 99436 KB Output is correct
29 Correct 92 ms 99436 KB Output is correct
30 Correct 95 ms 99436 KB Output is correct
31 Correct 1157 ms 168924 KB Output is correct
32 Correct 132 ms 168924 KB Output is correct
33 Correct 1119 ms 168924 KB Output is correct
34 Correct 866 ms 168924 KB Output is correct
35 Correct 1134 ms 169624 KB Output is correct
36 Correct 961 ms 169908 KB Output is correct
37 Correct 615 ms 169908 KB Output is correct
38 Correct 672 ms 169908 KB Output is correct
39 Correct 514 ms 169908 KB Output is correct
40 Correct 515 ms 169908 KB Output is correct
41 Correct 686 ms 169908 KB Output is correct
42 Correct 590 ms 169908 KB Output is correct
43 Correct 126 ms 169908 KB Output is correct
44 Correct 607 ms 169908 KB Output is correct
45 Correct 666 ms 169908 KB Output is correct
46 Correct 502 ms 169908 KB Output is correct
47 Correct 308 ms 169908 KB Output is correct
48 Correct 284 ms 169908 KB Output is correct
49 Correct 347 ms 169908 KB Output is correct
50 Correct 391 ms 169908 KB Output is correct
51 Correct 391 ms 169908 KB Output is correct
52 Correct 1933 ms 265048 KB Output is correct
53 Correct 2075 ms 265048 KB Output is correct
54 Correct 1757 ms 265048 KB Output is correct
55 Correct 1709 ms 265632 KB Output is correct
56 Correct 2260 ms 277720 KB Output is correct
57 Correct 1969 ms 277720 KB Output is correct
58 Correct 1839 ms 277720 KB Output is correct
59 Correct 1880 ms 277720 KB Output is correct
60 Correct 1909 ms 284320 KB Output is correct
61 Correct 1872 ms 284320 KB Output is correct
62 Correct 1203 ms 284320 KB Output is correct
63 Correct 1176 ms 284320 KB Output is correct
64 Correct 4625 ms 346784 KB Output is correct
65 Correct 278 ms 346784 KB Output is correct
66 Correct 4655 ms 368068 KB Output is correct
67 Correct 975 ms 368068 KB Output is correct
68 Correct 2407 ms 368068 KB Output is correct
69 Correct 2249 ms 368068 KB Output is correct
70 Correct 4963 ms 368068 KB Output is correct
71 Correct 4848 ms 368068 KB Output is correct
72 Correct 1569 ms 368068 KB Output is correct
73 Correct 3141 ms 368068 KB Output is correct
74 Correct 4358 ms 368068 KB Output is correct
75 Correct 4761 ms 368068 KB Output is correct
76 Correct 1911 ms 368068 KB Output is correct
77 Correct 1747 ms 368068 KB Output is correct
78 Correct 2107 ms 368068 KB Output is correct
79 Correct 2334 ms 368068 KB Output is correct
80 Correct 2221 ms 368068 KB Output is correct
81 Correct 359 ms 368068 KB Output is correct
82 Correct 360 ms 368068 KB Output is correct
83 Correct 511 ms 368068 KB Output is correct
84 Correct 534 ms 368068 KB Output is correct
85 Correct 497 ms 368068 KB Output is correct
86 Correct 705 ms 368068 KB Output is correct
87 Correct 621 ms 368068 KB Output is correct
88 Correct 529 ms 368068 KB Output is correct
89 Correct 508 ms 368068 KB Output is correct
90 Correct 134 ms 368068 KB Output is correct
91 Correct 396 ms 368068 KB Output is correct
92 Correct 579 ms 368068 KB Output is correct
93 Correct 584 ms 368068 KB Output is correct
94 Correct 622 ms 368068 KB Output is correct
95 Correct 685 ms 368068 KB Output is correct
96 Correct 175 ms 368068 KB Output is correct
97 Correct 1756 ms 368068 KB Output is correct
98 Correct 280 ms 368068 KB Output is correct
99 Execution timed out 5033 ms 439944 KB Time limit exceeded
100 Halted 0 ms 0 KB -