oj.uz

Submission #161022

# Submission time Handle Problem Language Result Execution time Memory
161022 2019-10-31T08:41:00 Z Minnakhmetov New Home (APIO18_new_home) C++14
57 / 100
 5000 ms 424216 KB 
#include <bits/stdc++.h>
    
#define ll long long
#define all(aaa) aaa.begin(), aaa.end()
 
using namespace std;
 
struct E {
    int p, t, x, y;
};
 
struct U {
    int l, r;
    pair<int, int> p;
};
 
const int N = 3e5 + 5, INF = 1e9, MAX = 1e8;
int n, q, k, cq, cc;
int ans[N];
pair<int, int> lt[N], tmp[N];
unordered_map<int, vector<int>> mp[2][N];
 
vector<int> vx;
multiset<int> occ[N];
vector<pair<int, int>> t[2][N * 4];
vector<U> updates[2];
 
void upd(int type, int l, int r, pair<int, int> p, int v, int L, int R) {
    if (l > r)
        return;
    if (L == l && R == r) {
        t[type][v].push_back(p);
    }
    else {
        int m = (L + R) >> 1;
        upd(type, l, min(m, r), p, v * 2, L, m);
        upd(type, max(m + 1, l), r, p, v * 2 + 1, m + 1, R);
    }
}
 
void startSeg(int type, int x, int y) {
    mp[type][x][y].push_back(cq);
}
 
void endSeg(int type, int x, int y) {
    updates[type].push_back({mp[type][x][y].back(), cq - 1, {x, y}});
    mp[type][x][y].pop_back();
}
 
void updBeg(int x, bool add) {
    if (add)
        startSeg(0, 0, x);
    else
        endSeg(0, 0, x);
}
 
void updBetween(int x, int y, bool add) {
    if (x == y)
        return;
    int m = (x + y) / 2;
    if ((x + y) % 2)
        m++;
 
    // cout << "BET " << x << " " << y << " " << add << "\n";
 
    int m1 = lower_bound(all(vx), m) - vx.begin();
    if (add) {
        startSeg(0, m1, y);
        startSeg(1, cc - m1, INF - x);
    }
    else {
        endSeg(0, m1, y);
        endSeg(1, cc - m1, INF - x);
    }
}
 
void updEnd(int x, bool add) {
    if (add)
        startSeg(1, 0, INF - x);
    else
        endSeg(1, 0, INF - x);
}
 
void calcAns(int v, int L, int R) {
    if (L == R) {
        tmp[0] = lt[L];
    }
    else {
        int m = (L + R) >> 1;
        calcAns(v * 2, L, m);
        calcAns(v * 2 + 1, m + 1, R);
        
        int x = L, y = m + 1, z = 0;
        while (x <= m || y <= R) {
            if (x <= m && (y == R + 1 || lt[x].first < lt[y].first))
                tmp[z] = lt[x++];
            else 
                tmp[z] = lt[y++];
            z++;
        }
        for (int i = L; i <= R; i++)
            lt[i] = tmp[i - L];
    }
 
    int i = 0, mx = -INF;
    for (int j = 0; j <= R - L; j++) {
        while (i < t[0][v].size() && t[0][v][i].first <= tmp[j].first) {
            mx = max(mx, t[0][v][i].second);
            i++;
        }
        ans[tmp[j].second] = max(ans[tmp[j].second], mx - vx[tmp[j].first]);
    }    

    reverse(tmp, tmp + R - L + 1);

    for (int j = 0; j <= R - L; j++)
        tmp[j].first = cc - 1 - tmp[j].first;

    // for (int j = 0; j <= R - L; j++) {
    //     cout << tmp[j].first << " " << tmp[j].second << "\n";
    // }

    // for (auto p : t[1][v]) {
    //     cout << p.first << " " << p.second << "\n";
    // }

    // cout << ans[0] << "\n";

    i = 0, mx = -INF;
    for (int j = 0; j <= R - L; j++) {
        while (i < t[1][v].size() && t[1][v][i].first <= tmp[j].first) {
            mx = max(mx, t[1][v][i].second);
            i++;
        }
        ans[tmp[j].second] = max(ans[tmp[j].second], mx - INF + vx[cc - 1 - tmp[j].first]);
    }
}
 
void calcUpdates(vector<E> &evs) { 
    for (E &e : evs) {
        if (e.t == 2)
            vx.push_back(e.x);
    }
 
    sort(all(vx));
    vx.erase(unique(all(vx)), vx.end());
 
    cc = vx.size();
 
    cq = 0;
 
    for (E &e : evs) {
        // cout << e.p << " " << e.t << " " << e.x << " " << e.y << "\n";
        if (e.t == 0) {
            auto it = occ[e.y].upper_bound(e.x);
            int pr = (it == occ[e.y].begin() ? -1 : *prev(it)),
                cur = (it == occ[e.y].end() ? -1 : *it);

            if (!occ[e.y].empty()) {
                if (pr != -1 && cur != -1) {
                    updBetween(pr, cur, false);
                }
                if (pr == -1) {
                    updBeg(cur, false);
                }
                if (cur == -1) {
                    updEnd(pr, false);
                }
            }
 
            occ[e.y].insert(e.x);
 
            if (pr == -1)
                updBeg(e.x, true);
            else
                updBetween(pr, e.x, true);
 
            if (cur != -1)
                updBetween(e.x, cur, true);
            else
                updEnd(e.x, true);
 
        }
        else if (e.t == 1) {
            auto it = occ[e.y].find(e.x);
 
            if (it == occ[e.y].begin()) 
                updBeg(*it, false);
            else
                updBetween(*prev(it), *it, false);
 
            if (next(it) != occ[e.y].end())
                updBetween(*it, *next(it), false);
            else
                updEnd(e.x, false);
 
            if (it != occ[e.y].begin() && next(it) != occ[e.y].end())
                updBetween(*prev(it), *next(it), true);
            if (it == occ[e.y].begin() && occ[e.y].size() > 1)
                updBeg(*next(it), true);
 
            if (next(it) == occ[e.y].end() &&
                occ[e.y].size() > 1)
                updEnd(*prev(it), true);
 
            occ[e.y].erase(it);
        }
        else {
            lt[cq++] = {lower_bound(all(vx), e.x) - vx.begin(), e.y};
        }
    }
 
    for (int i = 0; i < 2; i++) {
        sort(all(updates[i]), [](const U &a, const U &b) {
            return a.p.first < b.p.first;
        });
    }
}
 
signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
 
    cin >> n >> k >> q;
 
    vector<E> evs;
 
    for (int i = 0; i < n; i++) {
        int x, t, a, b;
        cin >> x >> t >> a >> b;
        t--;
        evs.push_back({a, 0, x, t});
        evs.push_back({b + 1, 1, x, t});
    }
 
    for (int i = 0; i < k; i++) {
        evs.push_back({1, 0, INF, i});
        evs.push_back({MAX, 1, INF, i});
    }
 
    for (int i = 0; i < q; i++) {
        int x, y;
        cin >> x >> y;
        evs.push_back({y, 2, x, i});
    }
 
    sort(all(evs), [](const E &a, const E &b) {
        return a.p == b.p ? a.t < b.t : a.p < b.p;
    });
 
    calcUpdates(evs);

    for (int i = 0; i < 2; i++) {
        for (U &u : updates[i]) {
            upd(i, u.l, u.r, u.p, 1, 0, q - 1);
        }
    }

    calcAns(1, 0, q - 1);
 
    for (int i = 0; i < q; i++) {
        if (ans[i] < INF / 2) {
            cout << ans[i] << "\n";
        }
        else {
            cout << "-1\n";
        }
    }
 
    return 0;
}

Compilation message

new_home.cpp: In function 'void calcAns(int, int, int)':
new_home.cpp:107:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while (i < t[0][v].size() && t[0][v][i].first <= tmp[j].first) {
                ~~^~~~~~~~~~~~~~~~
new_home.cpp:131:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while (i < t[1][v].size() && t[1][v][i].first <= tmp[j].first) {
                ~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 103672 KB Output is correct
2 Correct 125 ms 103672 KB Output is correct
3 Correct 103 ms 103672 KB Output is correct
4 Correct 105 ms 103800 KB Output is correct
5 Correct 116 ms 103800 KB Output is correct
6 Correct 110 ms 104060 KB Output is correct
7 Correct 100 ms 104056 KB Output is correct
8 Correct 105 ms 104024 KB Output is correct
9 Correct 106 ms 104084 KB Output is correct
10 Correct 109 ms 104172 KB Output is correct
11 Correct 102 ms 103928 KB Output is correct
12 Correct 102 ms 104056 KB Output is correct
13 Correct 103 ms 103928 KB Output is correct
14 Correct 105 ms 104184 KB Output is correct
15 Correct 102 ms 104056 KB Output is correct
16 Correct 107 ms 104236 KB Output is correct
17 Correct 111 ms 104028 KB Output is correct
18 Correct 111 ms 104056 KB Output is correct
19 Correct 103 ms 104132 KB Output is correct
20 Correct 102 ms 104056 KB Output is correct
21 Correct 113 ms 103892 KB Output is correct
22 Correct 104 ms 104056 KB Output is correct
23 Correct 106 ms 104016 KB Output is correct
24 Correct 102 ms 104056 KB Output is correct
25 Correct 103 ms 104124 KB Output is correct
26 Correct 103 ms 104056 KB Output is correct
27 Correct 104 ms 104056 KB Output is correct
28 Correct 101 ms 104056 KB Output is correct
29 Correct 104 ms 104056 KB Output is correct
30 Correct 107 ms 103944 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 103672 KB Output is correct
2 Correct 125 ms 103672 KB Output is correct
3 Correct 103 ms 103672 KB Output is correct
4 Correct 105 ms 103800 KB Output is correct
5 Correct 116 ms 103800 KB Output is correct
6 Correct 110 ms 104060 KB Output is correct
7 Correct 100 ms 104056 KB Output is correct
8 Correct 105 ms 104024 KB Output is correct
9 Correct 106 ms 104084 KB Output is correct
10 Correct 109 ms 104172 KB Output is correct
11 Correct 102 ms 103928 KB Output is correct
12 Correct 102 ms 104056 KB Output is correct
13 Correct 103 ms 103928 KB Output is correct
14 Correct 105 ms 104184 KB Output is correct
15 Correct 102 ms 104056 KB Output is correct
16 Correct 107 ms 104236 KB Output is correct
17 Correct 111 ms 104028 KB Output is correct
18 Correct 111 ms 104056 KB Output is correct
19 Correct 103 ms 104132 KB Output is correct
20 Correct 102 ms 104056 KB Output is correct
21 Correct 113 ms 103892 KB Output is correct
22 Correct 104 ms 104056 KB Output is correct
23 Correct 106 ms 104016 KB Output is correct
24 Correct 102 ms 104056 KB Output is correct
25 Correct 103 ms 104124 KB Output is correct
26 Correct 103 ms 104056 KB Output is correct
27 Correct 104 ms 104056 KB Output is correct
28 Correct 101 ms 104056 KB Output is correct
29 Correct 104 ms 104056 KB Output is correct
30 Correct 107 ms 103944 KB Output is correct
31 Correct 1518 ms 194532 KB Output is correct
32 Correct 273 ms 117032 KB Output is correct
33 Correct 1316 ms 191968 KB Output is correct
34 Correct 1297 ms 191680 KB Output is correct
35 Correct 1496 ms 195308 KB Output is correct
36 Correct 1322 ms 194016 KB Output is correct
37 Correct 949 ms 184312 KB Output is correct
38 Correct 918 ms 181392 KB Output is correct
39 Correct 786 ms 168672 KB Output is correct
40 Correct 756 ms 170848 KB Output is correct
41 Correct 921 ms 163944 KB Output is correct
42 Correct 923 ms 164992 KB Output is correct
43 Correct 216 ms 117472 KB Output is correct
44 Correct 970 ms 163124 KB Output is correct
45 Correct 863 ms 158404 KB Output is correct
46 Correct 756 ms 149852 KB Output is correct
47 Correct 556 ms 145168 KB Output is correct
48 Correct 536 ms 144164 KB Output is correct
49 Correct 623 ms 151420 KB Output is correct
50 Correct 713 ms 160012 KB Output is correct
51 Correct 625 ms 149452 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3732 ms 289680 KB Output is correct
2 Correct 4565 ms 310612 KB Output is correct
3 Correct 2421 ms 293240 KB Output is correct
4 Correct 3477 ms 284108 KB Output is correct
5 Correct 4265 ms 284216 KB Output is correct
6 Correct 4114 ms 309220 KB Output is correct
7 Correct 2248 ms 289216 KB Output is correct
8 Correct 3008 ms 280012 KB Output is correct
9 Correct 3471 ms 290332 KB Output is correct
10 Correct 3691 ms 323564 KB Output is correct
11 Correct 2565 ms 314036 KB Output is correct
12 Correct 3115 ms 318868 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5107 ms 424216 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 103672 KB Output is correct
2 Correct 125 ms 103672 KB Output is correct
3 Correct 103 ms 103672 KB Output is correct
4 Correct 105 ms 103800 KB Output is correct
5 Correct 116 ms 103800 KB Output is correct
6 Correct 110 ms 104060 KB Output is correct
7 Correct 100 ms 104056 KB Output is correct
8 Correct 105 ms 104024 KB Output is correct
9 Correct 106 ms 104084 KB Output is correct
10 Correct 109 ms 104172 KB Output is correct
11 Correct 102 ms 103928 KB Output is correct
12 Correct 102 ms 104056 KB Output is correct
13 Correct 103 ms 103928 KB Output is correct
14 Correct 105 ms 104184 KB Output is correct
15 Correct 102 ms 104056 KB Output is correct
16 Correct 107 ms 104236 KB Output is correct
17 Correct 111 ms 104028 KB Output is correct
18 Correct 111 ms 104056 KB Output is correct
19 Correct 103 ms 104132 KB Output is correct
20 Correct 102 ms 104056 KB Output is correct
21 Correct 113 ms 103892 KB Output is correct
22 Correct 104 ms 104056 KB Output is correct
23 Correct 106 ms 104016 KB Output is correct
24 Correct 102 ms 104056 KB Output is correct
25 Correct 103 ms 104124 KB Output is correct
26 Correct 103 ms 104056 KB Output is correct
27 Correct 104 ms 104056 KB Output is correct
28 Correct 101 ms 104056 KB Output is correct
29 Correct 104 ms 104056 KB Output is correct
30 Correct 107 ms 103944 KB Output is correct
31 Correct 1518 ms 194532 KB Output is correct
32 Correct 273 ms 117032 KB Output is correct
33 Correct 1316 ms 191968 KB Output is correct
34 Correct 1297 ms 191680 KB Output is correct
35 Correct 1496 ms 195308 KB Output is correct
36 Correct 1322 ms 194016 KB Output is correct
37 Correct 949 ms 184312 KB Output is correct
38 Correct 918 ms 181392 KB Output is correct
39 Correct 786 ms 168672 KB Output is correct
40 Correct 756 ms 170848 KB Output is correct
41 Correct 921 ms 163944 KB Output is correct
42 Correct 923 ms 164992 KB Output is correct
43 Correct 216 ms 117472 KB Output is correct
44 Correct 970 ms 163124 KB Output is correct
45 Correct 863 ms 158404 KB Output is correct
46 Correct 756 ms 149852 KB Output is correct
47 Correct 556 ms 145168 KB Output is correct
48 Correct 536 ms 144164 KB Output is correct
49 Correct 623 ms 151420 KB Output is correct
50 Correct 713 ms 160012 KB Output is correct
51 Correct 625 ms 149452 KB Output is correct
52 Correct 763 ms 168288 KB Output is correct
53 Correct 685 ms 156212 KB Output is correct
54 Correct 1139 ms 175272 KB Output is correct
55 Correct 905 ms 169388 KB Output is correct
56 Correct 823 ms 169412 KB Output is correct
57 Correct 967 ms 164932 KB Output is correct
58 Correct 1004 ms 167932 KB Output is correct
59 Correct 894 ms 168480 KB Output is correct
60 Correct 1072 ms 165340 KB Output is correct
61 Correct 276 ms 128212 KB Output is correct
62 Correct 752 ms 171152 KB Output is correct
63 Correct 939 ms 172216 KB Output is correct
64 Correct 1006 ms 174124 KB Output is correct
65 Correct 1044 ms 174972 KB Output is correct
66 Correct 1012 ms 167300 KB Output is correct
67 Correct 328 ms 130312 KB Output is correct

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 99 ms 103672 KB Output is correct
2 Correct 125 ms 103672 KB Output is correct
3 Correct 103 ms 103672 KB Output is correct
4 Correct 105 ms 103800 KB Output is correct
5 Correct 116 ms 103800 KB Output is correct
6 Correct 110 ms 104060 KB Output is correct
7 Correct 100 ms 104056 KB Output is correct
8 Correct 105 ms 104024 KB Output is correct
9 Correct 106 ms 104084 KB Output is correct
10 Correct 109 ms 104172 KB Output is correct
11 Correct 102 ms 103928 KB Output is correct
12 Correct 102 ms 104056 KB Output is correct
13 Correct 103 ms 103928 KB Output is correct
14 Correct 105 ms 104184 KB Output is correct
15 Correct 102 ms 104056 KB Output is correct
16 Correct 107 ms 104236 KB Output is correct
17 Correct 111 ms 104028 KB Output is correct
18 Correct 111 ms 104056 KB Output is correct
19 Correct 103 ms 104132 KB Output is correct
20 Correct 102 ms 104056 KB Output is correct
21 Correct 113 ms 103892 KB Output is correct
22 Correct 104 ms 104056 KB Output is correct
23 Correct 106 ms 104016 KB Output is correct
24 Correct 102 ms 104056 KB Output is correct
25 Correct 103 ms 104124 KB Output is correct
26 Correct 103 ms 104056 KB Output is correct
27 Correct 104 ms 104056 KB Output is correct
28 Correct 101 ms 104056 KB Output is correct
29 Correct 104 ms 104056 KB Output is correct
30 Correct 107 ms 103944 KB Output is correct
31 Correct 1518 ms 194532 KB Output is correct
32 Correct 273 ms 117032 KB Output is correct
33 Correct 1316 ms 191968 KB Output is correct
34 Correct 1297 ms 191680 KB Output is correct
35 Correct 1496 ms 195308 KB Output is correct
36 Correct 1322 ms 194016 KB Output is correct
37 Correct 949 ms 184312 KB Output is correct
38 Correct 918 ms 181392 KB Output is correct
39 Correct 786 ms 168672 KB Output is correct
40 Correct 756 ms 170848 KB Output is correct
41 Correct 921 ms 163944 KB Output is correct
42 Correct 923 ms 164992 KB Output is correct
43 Correct 216 ms 117472 KB Output is correct
44 Correct 970 ms 163124 KB Output is correct
45 Correct 863 ms 158404 KB Output is correct
46 Correct 756 ms 149852 KB Output is correct
47 Correct 556 ms 145168 KB Output is correct
48 Correct 536 ms 144164 KB Output is correct
49 Correct 623 ms 151420 KB Output is correct
50 Correct 713 ms 160012 KB Output is correct
51 Correct 625 ms 149452 KB Output is correct
52 Correct 3732 ms 289680 KB Output is correct
53 Correct 4565 ms 310612 KB Output is correct
54 Correct 2421 ms 293240 KB Output is correct
55 Correct 3477 ms 284108 KB Output is correct
56 Correct 4265 ms 284216 KB Output is correct
57 Correct 4114 ms 309220 KB Output is correct
58 Correct 2248 ms 289216 KB Output is correct
59 Correct 3008 ms 280012 KB Output is correct
60 Correct 3471 ms 290332 KB Output is correct
61 Correct 3691 ms 323564 KB Output is correct
62 Correct 2565 ms 314036 KB Output is correct
63 Correct 3115 ms 318868 KB Output is correct
64 Execution timed out 5107 ms 424216 KB Time limit exceeded
65 Halted 0 ms 0 KB -