oj.uz

Submission #888801

# Submission time Handle Problem Language Result Execution time Memory
888801 2023-12-18T08:01:02 Z vjudge1 Passport (JOI23_passport) C++17
16 / 100
 2000 ms 50268 KB 
#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;
#define all(x) x.begin(), x.end()
#define size(x) (int)x.size()

template<class S, class T> 
bool chmin(S &a, const T &b) {
    return (a > b ? (a = b) == b : false);
}
template<class S, class T> 
bool chmax(S &a, const T &b) {
    return (a < b ? (a = b) == b : false);
}
const int inf = 1e9;
const ll INF = 1e18;
const int mod = 998244353;
const int N =  2500;

int n, l[N], r[N];
vector<vector<int>> d(N, vector<int> (N, inf));

void bfs(int init) {
    queue<pair<int, int>> q;
    d[l[init]][r[init]] = 1;
    q.push({l[init], r[init]});
    while (!q.empty()) {
        auto [L, R] = q.front(); 
        q.pop();
        for (int i = L; i <= R; ++i) {
            int new_l = min(L, l[i]), new_r = max(R, r[i]);
            if (chmin(d[new_l][new_r], d[L][R] + 1)) {
                q.push({new_l, new_r});
            }
        }
    }
}

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n;
    for (int i = 0; i < n; ++i) {
        cin >> l[i] >> r[i];
        l[i]--, r[i]--;
    }
    int q;
    cin >> q;
    while (q--) {
        int x;
        cin >> x;
        bfs(--x);
        cout << (d[0][n - 1] == inf ? -1 : d[0][n - 1]) << '\n';
    }
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 24936 KB Output is correct
2 Correct 12 ms 24920 KB Output is correct
3 Correct 13 ms 24924 KB Output is correct
4 Runtime error 33 ms 50268 KB Execution killed with signal 11
5 Halted 0 ms 0 KB -

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 24924 KB Output is correct
2 Correct 13 ms 24816 KB Output is correct
3 Correct 12 ms 24924 KB Output is correct
4 Correct 12 ms 24924 KB Output is correct
5 Correct 12 ms 24924 KB Output is correct
6 Correct 12 ms 25016 KB Output is correct
7 Correct 12 ms 24920 KB Output is correct
8 Correct 12 ms 24924 KB Output is correct
9 Correct 12 ms 24924 KB Output is correct
10 Correct 12 ms 24924 KB Output is correct
11 Correct 13 ms 25048 KB Output is correct
12 Correct 14 ms 24924 KB Output is correct
13 Correct 13 ms 24932 KB Output is correct
14 Correct 12 ms 24924 KB Output is correct
15 Correct 15 ms 24960 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 24924 KB Output is correct
2 Correct 13 ms 24816 KB Output is correct
3 Correct 12 ms 24924 KB Output is correct
4 Correct 12 ms 24924 KB Output is correct
5 Correct 12 ms 24924 KB Output is correct
6 Correct 12 ms 25016 KB Output is correct
7 Correct 12 ms 24920 KB Output is correct
8 Correct 12 ms 24924 KB Output is correct
9 Correct 12 ms 24924 KB Output is correct
10 Correct 12 ms 24924 KB Output is correct
11 Correct 13 ms 25048 KB Output is correct
12 Correct 14 ms 24924 KB Output is correct
13 Correct 13 ms 24932 KB Output is correct
14 Correct 12 ms 24924 KB Output is correct
15 Correct 15 ms 24960 KB Output is correct
16 Correct 1280 ms 26792 KB Output is correct
17 Correct 1080 ms 25036 KB Output is correct
18 Correct 30 ms 24924 KB Output is correct
19 Correct 44 ms 24924 KB Output is correct
20 Execution timed out 2054 ms 25172 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #4
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 24924 KB Output is correct
2 Correct 13 ms 24816 KB Output is correct
3 Correct 12 ms 24924 KB Output is correct
4 Correct 12 ms 24924 KB Output is correct
5 Correct 12 ms 24924 KB Output is correct
6 Correct 12 ms 25016 KB Output is correct
7 Correct 12 ms 24920 KB Output is correct
8 Correct 12 ms 24924 KB Output is correct
9 Correct 12 ms 24924 KB Output is correct
10 Correct 12 ms 24924 KB Output is correct
11 Correct 13 ms 25048 KB Output is correct
12 Correct 14 ms 24924 KB Output is correct
13 Correct 13 ms 24932 KB Output is correct
14 Correct 12 ms 24924 KB Output is correct
15 Correct 15 ms 24960 KB Output is correct
16 Correct 1280 ms 26792 KB Output is correct
17 Correct 1080 ms 25036 KB Output is correct
18 Correct 30 ms 24924 KB Output is correct
19 Correct 44 ms 24924 KB Output is correct
20 Execution timed out 2054 ms 25172 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 24936 KB Output is correct
2 Correct 12 ms 24920 KB Output is correct
3 Correct 13 ms 24924 KB Output is correct
4 Runtime error 33 ms 50268 KB Execution killed with signal 11
5 Halted 0 ms 0 KB -