oj.uz

Submission #49701

# Submission time Handle Problem Language Result Execution time Memory
49701 2018-06-02T08:57:23 Z gs13105 New Home (APIO18_new_home) C++17
80 / 100
 5000 ms 460592 KB 
#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 MAXN = 300000;
const int MAXI = 1048576;
const int INF = 100000000;

static char buf[17100100];
static int fio_idx = 0;
static inline int _readInt() {
    int x = 0;
    int c = buf[fio_idx++];
    while(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;

vector<int> com;
inline int idx(int x)
{
    return lower_bound(com.begin(), com.end(), x) - com.begin();
}

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;
};

vector<eve> arr;
map<int, pos> loc[MAXN + 1];

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, INF - y + 1, INF - x + 1 });
}

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[MAXI + 1];

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

vector<que> inp;
bool chk[MAXN + 1];
int ans[MAXN + 1];

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

    sort(com.begin(), com.end());
    com.erase(unique(com.begin(), com.end()), com.end());

    int sz = com.size();
    for(bp = 1; bp < sz; bp *= 2);

    sort(arr.begin(), arr.end());
    int cur, cnt = 0;
    for(eve &e : arr)
    {
        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.begin(), inp.end());
    for(que &e : inp)
    {
        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 + 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++;
                }
            }
        }
        {
            int mx, p1, p2;
            mx = p1 = 0;
            p2 = mem[x].q.size() - 1;

            while(p2 >= 0)
            {
                int qx = INF - mem[x].q[p2].first + 1;
                if(p1 != mem[x].v[1].size() && mem[x].v[1][p1].first <= qx)
                {
                    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 - qx);
                    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:302:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(p2 < mem[x].q.size())
                   ~~~^~~~~~~~~~~~~~~~~
new_home.cpp:304:23: 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:324:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                 if(p1 != mem[x].v[1].size() && mem[x].v[1][p1].first <= qx)
                    ~~~^~~~~~~~~~~~~~~~~~~~~
new_home.cpp:111:10: 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);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 88312 KB Output is correct
2 Correct 76 ms 88312 KB Output is correct
3 Correct 78 ms 88344 KB Output is correct
4 Correct 74 ms 88404 KB Output is correct
5 Correct 76 ms 88536 KB Output is correct
6 Correct 76 ms 88736 KB Output is correct
7 Correct 74 ms 88736 KB Output is correct
8 Correct 74 ms 88736 KB Output is correct
9 Correct 80 ms 88736 KB Output is correct
10 Correct 78 ms 88880 KB Output is correct
11 Correct 71 ms 88880 KB Output is correct
12 Correct 91 ms 88880 KB Output is correct
13 Correct 73 ms 88880 KB Output is correct
14 Correct 74 ms 88880 KB Output is correct
15 Correct 76 ms 88880 KB Output is correct
16 Correct 91 ms 88880 KB Output is correct
17 Correct 74 ms 88880 KB Output is correct
18 Correct 75 ms 88880 KB Output is correct
19 Correct 75 ms 88880 KB Output is correct
20 Correct 82 ms 88880 KB Output is correct
21 Correct 76 ms 88880 KB Output is correct
22 Correct 80 ms 88880 KB Output is correct
23 Correct 72 ms 88880 KB Output is correct
24 Correct 76 ms 88880 KB Output is correct
25 Correct 75 ms 88880 KB Output is correct
26 Correct 80 ms 88880 KB Output is correct
27 Correct 75 ms 88880 KB Output is correct
28 Correct 75 ms 88880 KB Output is correct
29 Correct 74 ms 88880 KB Output is correct
30 Correct 75 ms 88880 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 88312 KB Output is correct
2 Correct 76 ms 88312 KB Output is correct
3 Correct 78 ms 88344 KB Output is correct
4 Correct 74 ms 88404 KB Output is correct
5 Correct 76 ms 88536 KB Output is correct
6 Correct 76 ms 88736 KB Output is correct
7 Correct 74 ms 88736 KB Output is correct
8 Correct 74 ms 88736 KB Output is correct
9 Correct 80 ms 88736 KB Output is correct
10 Correct 78 ms 88880 KB Output is correct
11 Correct 71 ms 88880 KB Output is correct
12 Correct 91 ms 88880 KB Output is correct
13 Correct 73 ms 88880 KB Output is correct
14 Correct 74 ms 88880 KB Output is correct
15 Correct 76 ms 88880 KB Output is correct
16 Correct 91 ms 88880 KB Output is correct
17 Correct 74 ms 88880 KB Output is correct
18 Correct 75 ms 88880 KB Output is correct
19 Correct 75 ms 88880 KB Output is correct
20 Correct 82 ms 88880 KB Output is correct
21 Correct 76 ms 88880 KB Output is correct
22 Correct 80 ms 88880 KB Output is correct
23 Correct 72 ms 88880 KB Output is correct
24 Correct 76 ms 88880 KB Output is correct
25 Correct 75 ms 88880 KB Output is correct
26 Correct 80 ms 88880 KB Output is correct
27 Correct 75 ms 88880 KB Output is correct
28 Correct 75 ms 88880 KB Output is correct
29 Correct 74 ms 88880 KB Output is correct
30 Correct 75 ms 88880 KB Output is correct
31 Correct 1140 ms 158408 KB Output is correct
32 Correct 138 ms 158408 KB Output is correct
33 Correct 1020 ms 158408 KB Output is correct
34 Correct 1078 ms 158408 KB Output is correct
35 Correct 1059 ms 159244 KB Output is correct
36 Correct 1099 ms 159384 KB Output is correct
37 Correct 569 ms 159384 KB Output is correct
38 Correct 674 ms 159384 KB Output is correct
39 Correct 570 ms 159384 KB Output is correct
40 Correct 570 ms 159384 KB Output is correct
41 Correct 762 ms 159384 KB Output is correct
42 Correct 542 ms 159384 KB Output is correct
43 Correct 98 ms 159384 KB Output is correct
44 Correct 630 ms 159384 KB Output is correct
45 Correct 627 ms 159384 KB Output is correct
46 Correct 475 ms 159384 KB Output is correct
47 Correct 254 ms 159384 KB Output is correct
48 Correct 276 ms 159384 KB Output is correct
49 Correct 341 ms 159384 KB Output is correct
50 Correct 390 ms 159384 KB Output is correct
51 Correct 378 ms 159384 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1889 ms 254448 KB Output is correct
2 Correct 1939 ms 254448 KB Output is correct
3 Correct 1606 ms 254448 KB Output is correct
4 Correct 1648 ms 254892 KB Output is correct
5 Correct 2078 ms 267208 KB Output is correct
6 Correct 1790 ms 267208 KB Output is correct
7 Correct 1478 ms 267208 KB Output is correct
8 Correct 1641 ms 267208 KB Output is correct
9 Correct 1959 ms 273880 KB Output is correct
10 Correct 1748 ms 273880 KB Output is correct
11 Correct 1043 ms 273880 KB Output is correct
12 Correct 1106 ms 273880 KB Output is correct

Subtask #4
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4267 ms 336412 KB Output is correct
2 Correct 244 ms 336412 KB Output is correct
3 Correct 4365 ms 357536 KB Output is correct
4 Correct 977 ms 357536 KB Output is correct
5 Correct 2542 ms 357536 KB Output is correct
6 Correct 2210 ms 357536 KB Output is correct
7 Correct 4989 ms 357536 KB Output is correct
8 Correct 4446 ms 357536 KB Output is correct
9 Correct 1678 ms 357536 KB Output is correct
10 Correct 3415 ms 357536 KB Output is correct
11 Correct 4056 ms 357536 KB Output is correct
12 Correct 4772 ms 357536 KB Output is correct
13 Correct 2115 ms 357536 KB Output is correct
14 Correct 1977 ms 357536 KB Output is correct
15 Correct 2146 ms 357536 KB Output is correct
16 Correct 2517 ms 357536 KB Output is correct
17 Correct 2426 ms 357536 KB Output is correct

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 88312 KB Output is correct
2 Correct 76 ms 88312 KB Output is correct
3 Correct 78 ms 88344 KB Output is correct
4 Correct 74 ms 88404 KB Output is correct
5 Correct 76 ms 88536 KB Output is correct
6 Correct 76 ms 88736 KB Output is correct
7 Correct 74 ms 88736 KB Output is correct
8 Correct 74 ms 88736 KB Output is correct
9 Correct 80 ms 88736 KB Output is correct
10 Correct 78 ms 88880 KB Output is correct
11 Correct 71 ms 88880 KB Output is correct
12 Correct 91 ms 88880 KB Output is correct
13 Correct 73 ms 88880 KB Output is correct
14 Correct 74 ms 88880 KB Output is correct
15 Correct 76 ms 88880 KB Output is correct
16 Correct 91 ms 88880 KB Output is correct
17 Correct 74 ms 88880 KB Output is correct
18 Correct 75 ms 88880 KB Output is correct
19 Correct 75 ms 88880 KB Output is correct
20 Correct 82 ms 88880 KB Output is correct
21 Correct 76 ms 88880 KB Output is correct
22 Correct 80 ms 88880 KB Output is correct
23 Correct 72 ms 88880 KB Output is correct
24 Correct 76 ms 88880 KB Output is correct
25 Correct 75 ms 88880 KB Output is correct
26 Correct 80 ms 88880 KB Output is correct
27 Correct 75 ms 88880 KB Output is correct
28 Correct 75 ms 88880 KB Output is correct
29 Correct 74 ms 88880 KB Output is correct
30 Correct 75 ms 88880 KB Output is correct
31 Correct 1140 ms 158408 KB Output is correct
32 Correct 138 ms 158408 KB Output is correct
33 Correct 1020 ms 158408 KB Output is correct
34 Correct 1078 ms 158408 KB Output is correct
35 Correct 1059 ms 159244 KB Output is correct
36 Correct 1099 ms 159384 KB Output is correct
37 Correct 569 ms 159384 KB Output is correct
38 Correct 674 ms 159384 KB Output is correct
39 Correct 570 ms 159384 KB Output is correct
40 Correct 570 ms 159384 KB Output is correct
41 Correct 762 ms 159384 KB Output is correct
42 Correct 542 ms 159384 KB Output is correct
43 Correct 98 ms 159384 KB Output is correct
44 Correct 630 ms 159384 KB Output is correct
45 Correct 627 ms 159384 KB Output is correct
46 Correct 475 ms 159384 KB Output is correct
47 Correct 254 ms 159384 KB Output is correct
48 Correct 276 ms 159384 KB Output is correct
49 Correct 341 ms 159384 KB Output is correct
50 Correct 390 ms 159384 KB Output is correct
51 Correct 378 ms 159384 KB Output is correct
52 Correct 339 ms 357536 KB Output is correct
53 Correct 355 ms 357536 KB Output is correct
54 Correct 514 ms 357536 KB Output is correct
55 Correct 644 ms 357536 KB Output is correct
56 Correct 454 ms 357536 KB Output is correct
57 Correct 545 ms 357536 KB Output is correct
58 Correct 596 ms 357536 KB Output is correct
59 Correct 515 ms 357536 KB Output is correct
60 Correct 789 ms 357536 KB Output is correct
61 Correct 122 ms 357536 KB Output is correct
62 Correct 392 ms 357536 KB Output is correct
63 Correct 570 ms 357536 KB Output is correct
64 Correct 706 ms 357536 KB Output is correct
65 Correct 693 ms 357536 KB Output is correct
66 Correct 772 ms 357536 KB Output is correct
67 Correct 170 ms 357536 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 91 ms 88312 KB Output is correct
2 Correct 76 ms 88312 KB Output is correct
3 Correct 78 ms 88344 KB Output is correct
4 Correct 74 ms 88404 KB Output is correct
5 Correct 76 ms 88536 KB Output is correct
6 Correct 76 ms 88736 KB Output is correct
7 Correct 74 ms 88736 KB Output is correct
8 Correct 74 ms 88736 KB Output is correct
9 Correct 80 ms 88736 KB Output is correct
10 Correct 78 ms 88880 KB Output is correct
11 Correct 71 ms 88880 KB Output is correct
12 Correct 91 ms 88880 KB Output is correct
13 Correct 73 ms 88880 KB Output is correct
14 Correct 74 ms 88880 KB Output is correct
15 Correct 76 ms 88880 KB Output is correct
16 Correct 91 ms 88880 KB Output is correct
17 Correct 74 ms 88880 KB Output is correct
18 Correct 75 ms 88880 KB Output is correct
19 Correct 75 ms 88880 KB Output is correct
20 Correct 82 ms 88880 KB Output is correct
21 Correct 76 ms 88880 KB Output is correct
22 Correct 80 ms 88880 KB Output is correct
23 Correct 72 ms 88880 KB Output is correct
24 Correct 76 ms 88880 KB Output is correct
25 Correct 75 ms 88880 KB Output is correct
26 Correct 80 ms 88880 KB Output is correct
27 Correct 75 ms 88880 KB Output is correct
28 Correct 75 ms 88880 KB Output is correct
29 Correct 74 ms 88880 KB Output is correct
30 Correct 75 ms 88880 KB Output is correct
31 Correct 1140 ms 158408 KB Output is correct
32 Correct 138 ms 158408 KB Output is correct
33 Correct 1020 ms 158408 KB Output is correct
34 Correct 1078 ms 158408 KB Output is correct
35 Correct 1059 ms 159244 KB Output is correct
36 Correct 1099 ms 159384 KB Output is correct
37 Correct 569 ms 159384 KB Output is correct
38 Correct 674 ms 159384 KB Output is correct
39 Correct 570 ms 159384 KB Output is correct
40 Correct 570 ms 159384 KB Output is correct
41 Correct 762 ms 159384 KB Output is correct
42 Correct 542 ms 159384 KB Output is correct
43 Correct 98 ms 159384 KB Output is correct
44 Correct 630 ms 159384 KB Output is correct
45 Correct 627 ms 159384 KB Output is correct
46 Correct 475 ms 159384 KB Output is correct
47 Correct 254 ms 159384 KB Output is correct
48 Correct 276 ms 159384 KB Output is correct
49 Correct 341 ms 159384 KB Output is correct
50 Correct 390 ms 159384 KB Output is correct
51 Correct 378 ms 159384 KB Output is correct
52 Correct 1889 ms 254448 KB Output is correct
53 Correct 1939 ms 254448 KB Output is correct
54 Correct 1606 ms 254448 KB Output is correct
55 Correct 1648 ms 254892 KB Output is correct
56 Correct 2078 ms 267208 KB Output is correct
57 Correct 1790 ms 267208 KB Output is correct
58 Correct 1478 ms 267208 KB Output is correct
59 Correct 1641 ms 267208 KB Output is correct
60 Correct 1959 ms 273880 KB Output is correct
61 Correct 1748 ms 273880 KB Output is correct
62 Correct 1043 ms 273880 KB Output is correct
63 Correct 1106 ms 273880 KB Output is correct
64 Correct 4267 ms 336412 KB Output is correct
65 Correct 244 ms 336412 KB Output is correct
66 Correct 4365 ms 357536 KB Output is correct
67 Correct 977 ms 357536 KB Output is correct
68 Correct 2542 ms 357536 KB Output is correct
69 Correct 2210 ms 357536 KB Output is correct
70 Correct 4989 ms 357536 KB Output is correct
71 Correct 4446 ms 357536 KB Output is correct
72 Correct 1678 ms 357536 KB Output is correct
73 Correct 3415 ms 357536 KB Output is correct
74 Correct 4056 ms 357536 KB Output is correct
75 Correct 4772 ms 357536 KB Output is correct
76 Correct 2115 ms 357536 KB Output is correct
77 Correct 1977 ms 357536 KB Output is correct
78 Correct 2146 ms 357536 KB Output is correct
79 Correct 2517 ms 357536 KB Output is correct
80 Correct 2426 ms 357536 KB Output is correct
81 Correct 339 ms 357536 KB Output is correct
82 Correct 355 ms 357536 KB Output is correct
83 Correct 514 ms 357536 KB Output is correct
84 Correct 644 ms 357536 KB Output is correct
85 Correct 454 ms 357536 KB Output is correct
86 Correct 545 ms 357536 KB Output is correct
87 Correct 596 ms 357536 KB Output is correct
88 Correct 515 ms 357536 KB Output is correct
89 Correct 789 ms 357536 KB Output is correct
90 Correct 122 ms 357536 KB Output is correct
91 Correct 392 ms 357536 KB Output is correct
92 Correct 570 ms 357536 KB Output is correct
93 Correct 706 ms 357536 KB Output is correct
94 Correct 693 ms 357536 KB Output is correct
95 Correct 772 ms 357536 KB Output is correct
96 Correct 170 ms 357536 KB Output is correct
97 Correct 2029 ms 357536 KB Output is correct
98 Correct 292 ms 357536 KB Output is correct
99 Execution timed out 5093 ms 460592 KB Time limit exceeded
100 Halted 0 ms 0 KB -