oj.uz

답안 #585807

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
585807 2022-06-29T11:22:23 Z InternetPerson10 고대 책들 (IOI17_books) C++17
0 / 100
 1 ms 340 KB 
#include "books.h"
#include <bits/stdc++.h>
typedef long long ll;
 
using namespace std;
 
vector<vector<int>> adj;
vector<int> dist;
 
long long minimum_walk(vector<int> p, int s) {
    ll tot = 0;
    int n = p.size();
    vector<bool> taken(n, false);
    int g = n;
    adj.resize(n);
    for(int i = 1; i < n; i++) {
        adj[i].push_back(i-1);
        adj[i-1].push_back(i);
    }
    for(int i = 0; i < n; i++) {
        if(!taken[i]) {
            adj.push_back(vector<int>());
            int x = i;
            int l = i, r = i;
            while(!taken[x]) {
                taken[x] = true;
                tot += abs(x - p[x]);
                x = p[x];
                l = min(l, x);
                r = max(r, x);
                adj[x].push_back(g);
            }
            for(int j = l; j <= r; j++) {
                adj[g].push_back(j);
            }
            g++;
        }
    }
    dist.resize(g, 1e9 + 7);
    priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;
    pq.push({0, s + 1});
    while(pq.size()) {
        auto pa = pq.top();
        pq.pop();
        int len = pa.first, x = abs(pa.second) - 1;
        if(len > dist[x]) continue;
        if(x < n) {
            if(pa.second < 0) {
                tot += 2;
            }
        }
        for(int ch : adj[x]) {
            int goLength;
            if(max(ch, x) < n) {
                goLength = len + 1;
            }
            else {
                goLength = len;
            }
            if(dist[ch] <= goLength) continue;
            dist[ch] = goLength;
            if(goLength == len + 1 || ch >= n) pq.push({goLength, -ch-1});
            else pq.push({goLength, ch+1});
        }
    }
    return tot;
}

Subtask #1
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Incorrect 1 ms 212 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Incorrect 1 ms 212 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #3
0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Incorrect 1 ms 212 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 340 KB 3rd lines differ - on the 1st token, expected: '3304', found: '3864'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Incorrect 1 ms 212 KB 3rd lines differ - on the 1st token, expected: '4', found: '6'
6 Halted 0 ms 0 KB -