oj.uz

Submission #1087971

# Submission time Handle Problem Language Result Execution time Memory
1087971 2024-09-13T16:06:31 Z Seungni Treatment Project (JOI20_treatment) C++17
100 / 100
 1328 ms 220516 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using pii = pair<ll, ll>;
const ll inf = 0x3f3f3f3f3f3f3f3fLL;

ll N, M, sz;
pair<pii, pii> arr[1600005];
pair<pii, int> v[1600005];
vector<ll> xpos;
ll dist[1600005];
set<pii> seg[1600005];

void add(int n, int s, int e, int idx, pii val) {
    if (idx > e || idx < s) return;
    if (s == e) {
        seg[n].insert(val);
        return;
    }
    int m = (s + e) >> 1;
    add(n * 2, s, m, idx, val);
    add(n * 2 + 1, m + 1, e, idx, val);
    seg[n].insert(val);
    return;
}

void del(int n, int s, int e, int idx, pii val) {
    if (idx > e || idx < s) return;
    if (s == e) {
        seg[n].erase(val);
        return;
    }
    int m = (s + e) >> 1;
    del(n * 2, s, m, idx, val);
    del(n * 2 + 1, m + 1, e, idx, val);
    seg[n].erase(val);
    return;
}

void query(int n, int s, int e, int l, int r, ll y, vector<int> &d) {
    if (l > e || r < s) return;
    if (l <= s && e <= r) {
        for (pii i: seg[n]) {
            if (i.first > y) break;
            d.push_back(i.second);
        }
        return;
    }
    int m = (s + e) >> 1;
    query(n * 2, s, m, l, r, y, d);
    query(n * 2 + 1, m + 1, e, l, r, y, d);
    return;
}

void Dijkstra() {
    memset(dist, 0x3f, sizeof(dist));
    priority_queue<pii, vector<pii>, greater<>> pq;

    vector<int> d;

    for (int i = 0; i < M; i++) {
        int idx = v[i].second;
        if (arr[idx].first.second == 1) {
            dist[i] = arr[idx].second.second;
            pq.push({dist[i], i});
            d.push_back(i);
        }
    }

    for (int i: d) {
        ll x = v[i].first.first, y = v[i].first.second, idx = v[i].second;
        int pos = lower_bound(xpos.begin(), xpos.end(), x) - xpos.begin();
        del(1, 0, sz - 1, pos, {y, idx});
    }

    while (pq.size()) {
        pii t = pq.top();
        pq.pop();
        ll now = t.second, val = t.first;
        int idx = v[now].second;
        ll x = arr[idx].second.first - arr[idx].first.first + 1, y = arr[idx].second.first + arr[idx].first.first + 1;

        d.clear();
        int pos = upper_bound(xpos.begin(), xpos.end(), x) - xpos.begin() - 1;

        query(1, 0, sz - 1, 0, pos, y, d);

        for (int i: d) {
            ll x = v[i].first.first, y = v[i].first.second, idx = v[i].second;
            int pos = lower_bound(xpos.begin(), xpos.end(), x) - xpos.begin();
            del(1, 0, sz - 1, pos, {y, idx});
            dist[i] = val + arr[idx].second.second;
            pq.push({dist[i], i});
        }
    }

    return;
}

void solve() {
    cin >> N >> M;
    for (int i = 0; i < M; i++) {
        ll T, L, R, C;
        cin >> T >> L >> R >> C;
        ll x = L - T, y = L + T;
        arr[i] = {{T, L},
                  {R, C}};
        v[i] = {{x, y}, i};
        xpos.push_back(x);
        xpos.push_back(x + 1);
    }

    sz = xpos.size();

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

    for (int i = 0; i < M; i++) {
        ll x = v[i].first.first, y = v[i].first.second, idx = v[i].second;
        int pos = lower_bound(xpos.begin(), xpos.end(), x) - xpos.begin();
        add(1, 0, sz - 1, pos, {y, idx});
    }

    Dijkstra();

    ll ans = inf;
    for (int i = 0; i < M; i++) {
        int idx = v[i].second;
        if (arr[idx].second.first == N) ans = min(ans, dist[i]);
    }

    if (ans == inf) cout << -1;
    else cout << ans;

    return;
}

int main(void) {
#ifndef ONLINE_JUDGE
    //freopen("input.txt", "r", stdin);
#endif
    ios::sync_with_stdio(false);
    cin.tie(0);
    int t = 1;
    //cin >> t;
    while (t--) solve();
    return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 640 ms 215012 KB Output is correct
2 Correct 630 ms 215256 KB Output is correct
3 Correct 604 ms 217028 KB Output is correct
4 Correct 601 ms 216260 KB Output is correct
5 Correct 464 ms 218312 KB Output is correct
6 Correct 436 ms 215496 KB Output is correct
7 Correct 417 ms 215240 KB Output is correct
8 Correct 409 ms 215288 KB Output is correct
9 Correct 332 ms 215268 KB Output is correct
10 Correct 398 ms 215280 KB Output is correct
11 Correct 787 ms 219248 KB Output is correct
12 Correct 794 ms 219012 KB Output is correct
13 Correct 797 ms 218604 KB Output is correct
14 Correct 804 ms 218312 KB Output is correct
15 Correct 766 ms 215352 KB Output is correct
16 Correct 741 ms 215236 KB Output is correct
17 Correct 740 ms 214488 KB Output is correct
18 Correct 778 ms 218296 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 87888 KB Output is correct
2 Correct 36 ms 87884 KB Output is correct
3 Correct 37 ms 87892 KB Output is correct
4 Correct 37 ms 87900 KB Output is correct
5 Correct 37 ms 87888 KB Output is correct
6 Correct 43 ms 87900 KB Output is correct
7 Correct 36 ms 87892 KB Output is correct
8 Correct 35 ms 87900 KB Output is correct
9 Correct 36 ms 87892 KB Output is correct
10 Correct 36 ms 87916 KB Output is correct
11 Correct 34 ms 88100 KB Output is correct
12 Correct 40 ms 88048 KB Output is correct
13 Correct 35 ms 87896 KB Output is correct
14 Correct 51 ms 87972 KB Output is correct
15 Correct 33 ms 87896 KB Output is correct
16 Correct 34 ms 87888 KB Output is correct
17 Correct 35 ms 87900 KB Output is correct
18 Correct 36 ms 88156 KB Output is correct
19 Correct 52 ms 87900 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 87888 KB Output is correct
2 Correct 36 ms 87884 KB Output is correct
3 Correct 37 ms 87892 KB Output is correct
4 Correct 37 ms 87900 KB Output is correct
5 Correct 37 ms 87888 KB Output is correct
6 Correct 43 ms 87900 KB Output is correct
7 Correct 36 ms 87892 KB Output is correct
8 Correct 35 ms 87900 KB Output is correct
9 Correct 36 ms 87892 KB Output is correct
10 Correct 36 ms 87916 KB Output is correct
11 Correct 34 ms 88100 KB Output is correct
12 Correct 40 ms 88048 KB Output is correct
13 Correct 35 ms 87896 KB Output is correct
14 Correct 51 ms 87972 KB Output is correct
15 Correct 33 ms 87896 KB Output is correct
16 Correct 34 ms 87888 KB Output is correct
17 Correct 35 ms 87900 KB Output is correct
18 Correct 36 ms 88156 KB Output is correct
19 Correct 52 ms 87900 KB Output is correct
20 Correct 66 ms 93064 KB Output is correct
21 Correct 57 ms 92972 KB Output is correct
22 Correct 61 ms 92916 KB Output is correct
23 Correct 59 ms 93008 KB Output is correct
24 Correct 63 ms 93248 KB Output is correct
25 Correct 60 ms 93008 KB Output is correct
26 Correct 62 ms 92952 KB Output is correct
27 Correct 55 ms 93020 KB Output is correct
28 Correct 59 ms 93040 KB Output is correct
29 Correct 58 ms 93180 KB Output is correct
30 Correct 53 ms 93012 KB Output is correct
31 Correct 50 ms 93156 KB Output is correct
32 Correct 59 ms 93220 KB Output is correct
33 Correct 57 ms 93264 KB Output is correct
34 Correct 53 ms 92960 KB Output is correct
35 Correct 56 ms 93272 KB Output is correct
36 Correct 59 ms 93264 KB Output is correct
37 Correct 55 ms 93012 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 640 ms 215012 KB Output is correct
2 Correct 630 ms 215256 KB Output is correct
3 Correct 604 ms 217028 KB Output is correct
4 Correct 601 ms 216260 KB Output is correct
5 Correct 464 ms 218312 KB Output is correct
6 Correct 436 ms 215496 KB Output is correct
7 Correct 417 ms 215240 KB Output is correct
8 Correct 409 ms 215288 KB Output is correct
9 Correct 332 ms 215268 KB Output is correct
10 Correct 398 ms 215280 KB Output is correct
11 Correct 787 ms 219248 KB Output is correct
12 Correct 794 ms 219012 KB Output is correct
13 Correct 797 ms 218604 KB Output is correct
14 Correct 804 ms 218312 KB Output is correct
15 Correct 766 ms 215352 KB Output is correct
16 Correct 741 ms 215236 KB Output is correct
17 Correct 740 ms 214488 KB Output is correct
18 Correct 778 ms 218296 KB Output is correct
19 Correct 36 ms 87888 KB Output is correct
20 Correct 36 ms 87884 KB Output is correct
21 Correct 37 ms 87892 KB Output is correct
22 Correct 37 ms 87900 KB Output is correct
23 Correct 37 ms 87888 KB Output is correct
24 Correct 43 ms 87900 KB Output is correct
25 Correct 36 ms 87892 KB Output is correct
26 Correct 35 ms 87900 KB Output is correct
27 Correct 36 ms 87892 KB Output is correct
28 Correct 36 ms 87916 KB Output is correct
29 Correct 34 ms 88100 KB Output is correct
30 Correct 40 ms 88048 KB Output is correct
31 Correct 35 ms 87896 KB Output is correct
32 Correct 51 ms 87972 KB Output is correct
33 Correct 33 ms 87896 KB Output is correct
34 Correct 34 ms 87888 KB Output is correct
35 Correct 35 ms 87900 KB Output is correct
36 Correct 36 ms 88156 KB Output is correct
37 Correct 52 ms 87900 KB Output is correct
38 Correct 66 ms 93064 KB Output is correct
39 Correct 57 ms 92972 KB Output is correct
40 Correct 61 ms 92916 KB Output is correct
41 Correct 59 ms 93008 KB Output is correct
42 Correct 63 ms 93248 KB Output is correct
43 Correct 60 ms 93008 KB Output is correct
44 Correct 62 ms 92952 KB Output is correct
45 Correct 55 ms 93020 KB Output is correct
46 Correct 59 ms 93040 KB Output is correct
47 Correct 58 ms 93180 KB Output is correct
48 Correct 53 ms 93012 KB Output is correct
49 Correct 50 ms 93156 KB Output is correct
50 Correct 59 ms 93220 KB Output is correct
51 Correct 57 ms 93264 KB Output is correct
52 Correct 53 ms 92960 KB Output is correct
53 Correct 56 ms 93272 KB Output is correct
54 Correct 59 ms 93264 KB Output is correct
55 Correct 55 ms 93012 KB Output is correct
56 Correct 736 ms 216600 KB Output is correct
57 Correct 870 ms 216772 KB Output is correct
58 Correct 712 ms 214548 KB Output is correct
59 Correct 678 ms 214796 KB Output is correct
60 Correct 875 ms 215500 KB Output is correct
61 Correct 666 ms 214720 KB Output is correct
62 Correct 745 ms 216776 KB Output is correct
63 Correct 702 ms 215240 KB Output is correct
64 Correct 696 ms 215236 KB Output is correct
65 Correct 692 ms 215432 KB Output is correct
66 Correct 890 ms 215492 KB Output is correct
67 Correct 1094 ms 216008 KB Output is correct
68 Correct 1037 ms 215896 KB Output is correct
69 Correct 680 ms 216092 KB Output is correct
70 Correct 1112 ms 216308 KB Output is correct
71 Correct 949 ms 216008 KB Output is correct
72 Correct 642 ms 216008 KB Output is correct
73 Correct 1140 ms 216032 KB Output is correct
74 Correct 612 ms 216004 KB Output is correct
75 Correct 488 ms 215976 KB Output is correct
76 Correct 806 ms 219588 KB Output is correct
77 Correct 1228 ms 219592 KB Output is correct
78 Correct 821 ms 218608 KB Output is correct
79 Correct 1328 ms 215920 KB Output is correct
80 Correct 799 ms 215744 KB Output is correct
81 Correct 927 ms 216084 KB Output is correct
82 Correct 788 ms 215120 KB Output is correct
83 Correct 995 ms 215240 KB Output is correct
84 Correct 1299 ms 215240 KB Output is correct
85 Correct 1030 ms 216004 KB Output is correct
86 Correct 1053 ms 216040 KB Output is correct
87 Correct 1114 ms 215948 KB Output is correct
88 Correct 798 ms 215972 KB Output is correct
89 Correct 1031 ms 215840 KB Output is correct
90 Correct 1170 ms 219848 KB Output is correct
91 Correct 1214 ms 218040 KB Output is correct
92 Correct 1139 ms 216008 KB Output is correct
93 Correct 1238 ms 215912 KB Output is correct
94 Correct 864 ms 216244 KB Output is correct
95 Correct 1206 ms 216004 KB Output is correct
96 Correct 1278 ms 219596 KB Output is correct
97 Correct 1268 ms 219204 KB Output is correct
98 Correct 1250 ms 219136 KB Output is correct
99 Correct 1236 ms 219196 KB Output is correct
100 Correct 998 ms 220516 KB Output is correct
101 Correct 1246 ms 219276 KB Output is correct
102 Correct 1175 ms 220028 KB Output is correct
103 Correct 1102 ms 216540 KB Output is correct