oj.uz

Submission #991011

# Submission time Handle Problem Language Result Execution time Memory
991011 2024-06-01T04:06:58 Z Pacybwoah Passport (JOI23_passport) C++17
16 / 100
 1759 ms 1048576 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,avx2,bmi,bmi2")
#include<iostream>
#include<vector>
#include<utility>
#include<map>
using namespace std;
struct st{
    vector<int> vec;
    st(int n){
        vec.resize(4 * n + 4);
    }
    void build(int l, int r, int ind, vector<int>& sr){
        if(l == r){
            vec[ind] = sr[l];
        }
        else{
            int mid = (l + r) >> 1;
            build(l, mid, ind * 2, sr);
            build(mid + 1, r, ind * 2 + 1, sr);
            vec[ind] = min(vec[ind * 2], vec[ind * 2 + 1]);
        }
    }
    void modify(int l, int r, int num, int pos, int ind){
        if(l == r){
            vec[ind] = num;
            return;
        }
        int mid = (l + r) >> 1;
        if(pos <= mid) modify(l, mid, num, pos, ind * 2);
        else modify(mid + 1, r, num, pos, ind * 2 + 1);
        vec[ind] = min(vec[ind * 2], vec[ind * 2 + 1]);
    }
    int query(int l, int r, int start, int end, int ind){
        if(r < start || end < l) return 1e9;
        if(start <= l && r <= end) return vec[ind];
        int mid = (l + r) >> 1;
        return min(query(l, mid, start, end, ind * 2), query(mid + 1, r, start, end, ind * 2 + 1));
    }
};
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    vector<pair<int, int>> vec(n + 1);
    for(int i = 1; i <= n; i++) cin >> vec[i].first >> vec[i].second;
    map<pair<int, int>, vector<int>> m;
    for(int i = 1; i <= n; i++){
        m[vec[i]].push_back(i);
    }
    vector<vector<int>> dp(n + 1, vector<int>(n + 1, 1e9));
    dp[1][n] = 0;
    st minl(n), maxr(n), mindp(n);
    vector<int> tmp(n + 1);
    for(int i = 1; i <= n; i++) tmp[i] = vec[i].first;
    minl.build(1, n, 1, tmp);
    for(int i = 1; i <= n; i++) tmp[i] = -vec[i].second;
    maxr.build(1, n, 1, tmp);
    for(int i = 1; i <= n; i++) tmp[i] = 1e9;
    mindp.build(1, n, 1, tmp);
    for(auto x: m[make_pair(1, n)]){
        mindp.modify(1, n, dp[1][n], x, 1);
    }
    for(int l = n - 1; l > 0; l--){
        for(int i = 1; i + l - 1 <= n; i++){
            int j = i + l - 1;
            if(n <= 300) dp[i][j] = min(dp[i][j], dp[minl.query(1, n, i, j, 1)][j] + 1);
            if(n <= 300) dp[i][j] = min(dp[i][j], dp[i][-maxr.query(1, n, i, j, 1)] + 1);
            dp[i][j] = min(dp[i][j], mindp.query(1, n, i, j, 1) + 1);
            for(auto x: m[make_pair(i, j)]){
                mindp.modify(1, n, dp[i][j], x, 1);
            }
        }
    }
    int q;
    cin >> q;
    while(q--){
        int a;
        cin >> a;
        if(dp[a][a] == 1e9) cout << "-1\n";
        else cout << dp[a][a] << "\n";
    }
}
// g++ -std=gnu++20 pC.cpp -o run -Wall -Wextra -fsanitize=undefined -fsanitize=address

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Runtime error 505 ms 1048576 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 18 ms 3868 KB Output is correct
12 Correct 20 ms 4048 KB Output is correct
13 Correct 20 ms 4180 KB Output is correct
14 Correct 19 ms 3868 KB Output is correct
15 Correct 19 ms 4184 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 18 ms 3868 KB Output is correct
12 Correct 20 ms 4048 KB Output is correct
13 Correct 20 ms 4180 KB Output is correct
14 Correct 19 ms 3868 KB Output is correct
15 Correct 19 ms 4184 KB Output is correct
16 Incorrect 1759 ms 235860 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #4
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 18 ms 3868 KB Output is correct
12 Correct 20 ms 4048 KB Output is correct
13 Correct 20 ms 4180 KB Output is correct
14 Correct 19 ms 3868 KB Output is correct
15 Correct 19 ms 4184 KB Output is correct
16 Incorrect 1759 ms 235860 KB Output isn't correct
17 Halted 0 ms 0 KB -

Subtask #5
0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Runtime error 505 ms 1048576 KB Execution killed with signal 9
5 Halted 0 ms 0 KB -