oj.uz

답안 #952642

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
952642 2024-03-24T12:30:48 Z LOLOLO Passport (JOI23_passport) C++17
48 / 100
 818 ms 1048576 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())

const int N = 2e5 + 10;
int a[N], b[N], c[N], p[N], lst, ss[N];
vector < vector <int>> save;
vector <pair <int, int>> ed[N * 10];

void build(int id, int l, int r) {
    if (l == r) {
        ss[l] = id;
        return;
    }

    int m = (l + r) / 2;
    save.pb({id, id * 2, 0});
    save.pb({id, id * 2 + 1, 0});
    build(id * 2, l, m);
    build(id * 2 + 1, m + 1, r);
}

void dfs(int id, int l, int r, int u, int v, int cur) {
    if (l > v || r < u)
        return;

    if (l >= r && u <= v) {
        save.pb({cur, id, 0});
        return;
    }

    int m = (l + r) / 2;
    dfs(id * 2, l, m, u, v, cur);
    dfs(id * 2 + 1, m + 1, r, u, v, cur);
}

void dijkstra(vector <ll> &dis, vector <ll> save, vector <ll> cc) {
    dis.assign(lst + 1, 1e17);
    priority_queue <pair <ll, ll>, vector <pair <ll, ll>>, greater <pair <ll, ll>>> pq;

    for (auto x : save) {
        pq.push({cc[x], x});
        dis[x] = cc[x];
    }

    while (sz(pq)) {
        auto t = pq.top();
        pq.pop();
        if (dis[t.s] < t.f) 
            continue;

        for (auto x : ed[t.s]) {
            if (dis[x.f] > t.f + x.s) {
                dis[x.f] = t.f + x.s;
                pq.push({dis[x.f], x.f});
            }
        }
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int n;
    cin >> n;

    lst = n * 4;
    build(1, 1, n);

    for (int i = 1; i <= n; i++) {
        int l, r;
        cin >> l >> r;
        lst++;
        save.pb({ss[i], lst, 1});
        dfs(1, 1, n, l, r, lst);
    }

    for (auto x : save) {
        ed[x[1]].pb({x[0], x[2]});
    }

    vector <ll> d1, d2, d3, cst(lst + 1, 0), id;
    dijkstra(d1, {ss[1]}, cst);
    dijkstra(d2, {ss[n]}, cst);

    for (int i = 1; i <= lst; i++) {
        id.pb(i);
        cst[i] = d1[i] + d2[i];
    }

    dijkstra(d3, id, cst);

    int q;
    cin >> q;

    while (q--) {
        int x;
        cin >> x;
        if (d3[ss[x]] > 1e16) {
            cout << -1 << '\n';
        } else {
            cout << d3[ss[x]] << '\n';
        }
    }


    return 0;
}

Subtask #1
0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 49756 KB Output is correct
2 Correct 12 ms 49756 KB Output is correct
3 Correct 11 ms 49756 KB Output is correct
4 Runtime error 818 ms 1048576 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 49756 KB Output is correct
2 Correct 12 ms 49756 KB Output is correct
3 Correct 12 ms 49756 KB Output is correct
4 Correct 12 ms 49756 KB Output is correct
5 Correct 12 ms 49756 KB Output is correct
6 Correct 12 ms 49752 KB Output is correct
7 Correct 12 ms 49756 KB Output is correct
8 Correct 11 ms 49756 KB Output is correct
9 Correct 11 ms 49776 KB Output is correct
10 Correct 11 ms 49756 KB Output is correct
11 Correct 14 ms 51476 KB Output is correct
12 Correct 14 ms 50264 KB Output is correct
13 Correct 16 ms 53260 KB Output is correct
14 Correct 16 ms 53008 KB Output is correct
15 Correct 12 ms 50520 KB Output is correct

Subtask #3
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 49756 KB Output is correct
2 Correct 12 ms 49756 KB Output is correct
3 Correct 12 ms 49756 KB Output is correct
4 Correct 12 ms 49756 KB Output is correct
5 Correct 12 ms 49756 KB Output is correct
6 Correct 12 ms 49752 KB Output is correct
7 Correct 12 ms 49756 KB Output is correct
8 Correct 11 ms 49756 KB Output is correct
9 Correct 11 ms 49776 KB Output is correct
10 Correct 11 ms 49756 KB Output is correct
11 Correct 14 ms 51476 KB Output is correct
12 Correct 14 ms 50264 KB Output is correct
13 Correct 16 ms 53260 KB Output is correct
14 Correct 16 ms 53008 KB Output is correct
15 Correct 12 ms 50520 KB Output is correct
16 Correct 135 ms 141976 KB Output is correct
17 Correct 19 ms 53520 KB Output is correct
18 Correct 291 ms 256928 KB Output is correct
19 Correct 313 ms 245972 KB Output is correct
20 Correct 16 ms 52116 KB Output is correct
21 Correct 48 ms 79356 KB Output is correct
22 Correct 323 ms 261332 KB Output is correct
23 Correct 223 ms 215260 KB Output is correct
24 Correct 229 ms 214728 KB Output is correct

Subtask #4
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 49756 KB Output is correct
2 Correct 12 ms 49756 KB Output is correct
3 Correct 12 ms 49756 KB Output is correct
4 Correct 12 ms 49756 KB Output is correct
5 Correct 12 ms 49756 KB Output is correct
6 Correct 12 ms 49752 KB Output is correct
7 Correct 12 ms 49756 KB Output is correct
8 Correct 11 ms 49756 KB Output is correct
9 Correct 11 ms 49776 KB Output is correct
10 Correct 11 ms 49756 KB Output is correct
11 Correct 14 ms 51476 KB Output is correct
12 Correct 14 ms 50264 KB Output is correct
13 Correct 16 ms 53260 KB Output is correct
14 Correct 16 ms 53008 KB Output is correct
15 Correct 12 ms 50520 KB Output is correct
16 Correct 135 ms 141976 KB Output is correct
17 Correct 19 ms 53520 KB Output is correct
18 Correct 291 ms 256928 KB Output is correct
19 Correct 313 ms 245972 KB Output is correct
20 Correct 16 ms 52116 KB Output is correct
21 Correct 48 ms 79356 KB Output is correct
22 Correct 323 ms 261332 KB Output is correct
23 Correct 223 ms 215260 KB Output is correct
24 Correct 229 ms 214728 KB Output is correct
25 Correct 13 ms 49752 KB Output is correct
26 Correct 11 ms 49752 KB Output is correct
27 Correct 145 ms 149476 KB Output is correct
28 Correct 20 ms 53516 KB Output is correct
29 Correct 17 ms 52376 KB Output is correct
30 Correct 49 ms 76756 KB Output is correct
31 Correct 148 ms 153732 KB Output is correct

Subtask #5
0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 49756 KB Output is correct
2 Correct 12 ms 49756 KB Output is correct
3 Correct 11 ms 49756 KB Output is correct
4 Runtime error 818 ms 1048576 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -