oj.uz

Submission #888821

# Submission time Handle Problem Language Result Execution time Memory
888821 2023-12-18T08:10:56 Z vjudge1 Passport (JOI23_passport) C++17
16 / 100
 2000 ms 50384 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);
    cout.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 17 ms 24924 KB Output is correct
2 Correct 13 ms 24952 KB Output is correct
3 Correct 13 ms 24796 KB Output is correct
4 Runtime error 44 ms 50384 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 12 ms 24920 KB Output is correct
3 Correct 12 ms 24924 KB Output is correct
4 Correct 16 ms 24924 KB Output is correct
5 Correct 14 ms 24924 KB Output is correct
6 Correct 16 ms 24984 KB Output is correct
7 Correct 14 ms 24924 KB Output is correct
8 Correct 14 ms 24924 KB Output is correct
9 Correct 13 ms 24952 KB Output is correct
10 Correct 14 ms 24924 KB Output is correct
11 Correct 15 ms 24924 KB Output is correct
12 Correct 15 ms 24920 KB Output is correct
13 Correct 16 ms 24920 KB Output is correct
14 Correct 15 ms 24856 KB Output is correct
15 Correct 16 ms 24920 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 12 ms 24920 KB Output is correct
3 Correct 12 ms 24924 KB Output is correct
4 Correct 16 ms 24924 KB Output is correct
5 Correct 14 ms 24924 KB Output is correct
6 Correct 16 ms 24984 KB Output is correct
7 Correct 14 ms 24924 KB Output is correct
8 Correct 14 ms 24924 KB Output is correct
9 Correct 13 ms 24952 KB Output is correct
10 Correct 14 ms 24924 KB Output is correct
11 Correct 15 ms 24924 KB Output is correct
12 Correct 15 ms 24920 KB Output is correct
13 Correct 16 ms 24920 KB Output is correct
14 Correct 15 ms 24856 KB Output is correct
15 Correct 16 ms 24920 KB Output is correct
16 Correct 1492 ms 26808 KB Output is correct
17 Correct 1146 ms 25040 KB Output is correct
18 Correct 48 ms 24924 KB Output is correct
19 Correct 45 ms 24920 KB Output is correct
20 Execution timed out 2051 ms 24924 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 12 ms 24920 KB Output is correct
3 Correct 12 ms 24924 KB Output is correct
4 Correct 16 ms 24924 KB Output is correct
5 Correct 14 ms 24924 KB Output is correct
6 Correct 16 ms 24984 KB Output is correct
7 Correct 14 ms 24924 KB Output is correct
8 Correct 14 ms 24924 KB Output is correct
9 Correct 13 ms 24952 KB Output is correct
10 Correct 14 ms 24924 KB Output is correct
11 Correct 15 ms 24924 KB Output is correct
12 Correct 15 ms 24920 KB Output is correct
13 Correct 16 ms 24920 KB Output is correct
14 Correct 15 ms 24856 KB Output is correct
15 Correct 16 ms 24920 KB Output is correct
16 Correct 1492 ms 26808 KB Output is correct
17 Correct 1146 ms 25040 KB Output is correct
18 Correct 48 ms 24924 KB Output is correct
19 Correct 45 ms 24920 KB Output is correct
20 Execution timed out 2051 ms 24924 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #5
0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 24924 KB Output is correct
2 Correct 13 ms 24952 KB Output is correct
3 Correct 13 ms 24796 KB Output is correct
4 Runtime error 44 ms 50384 KB Execution killed with signal 11
5 Halted 0 ms 0 KB -