Submission #1081020

#	Time	Username	Problem	Language	Result	Execution time	Memory
1081020		raphaelp	Text editor (CEOI24_editor)	C++14	56 / 100	3091 ms	1048576 KiB

Main

#include <bits/stdc++.h>
using namespace std;
int main()
{
    long long N;
    cin >> N;
    long long debx, deby, finx, finy;
    cin >> debx >> deby >> finx >> finy;
    debx--, deby--, finx--, finy--;
    vector<long long> Tab(N);
    map<long long, long long> M;
    vector<long long> ys;
    for (long long i = 0; i < N; i++)
    {
        cin >> Tab[i];
        ys.push_back(Tab[i]);
    }
    ys.push_back(deby);
    ys.push_back(finy);
    long long buff = 0;
    sort(ys.begin(), ys.end());
    vector<long long> ys2;
    for (long long i = 0; i < ys.size(); i++)
        if (i == 0 || ys[i] != ys[i - 1])
        {
            M[ys[i]] = buff++;
            ys2.push_back(ys[i]);
        }
    swap(ys, ys2);
    deby = M[deby];
    finy = M[finy];
    for (long long i = 0; i < N; i++)
        Tab[i] = M[Tab[i]];
    vector<vector<long long>> occ(N, vector<long long>(buff + 1));
    priority_queue<vector<long long>> PQ;
    PQ.push({0, debx, deby});
    while (!PQ.empty())
    {
        long long x = PQ.top()[1], y = PQ.top()[2], t = PQ.top()[0];
        PQ.pop();
        if (occ[x][y])
            continue;
        occ[x][y] = 1;
        if (x == finx && y == finy)
        {
            cout << -t;
            return 0;
        }
        if (y > 0)
            PQ.push({t - (ys[y] - ys[y - 1]), x, y - 1});
        if (y < Tab[x])
            PQ.push({t - (ys[y + 1] - ys[y]), x, y + 1});
        if (x > 0 && y == 0)
            PQ.push({t - 1, x - 1, Tab[x - 1]});
        if (x < N - 1 && y == Tab[x])
            PQ.push({t - 1, x + 1, 0});
        if (x < N - 1)
            PQ.push({t - 1, x + 1, min(y, Tab[x + 1])});
        if (x > 0)
            PQ.push({t - 1, x - 1, min(y, Tab[x - 1])});
    }
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:23:29: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |     for (long long i = 0; i < ys.size(); i++)
      |                           ~~^~~~~~~~~~~

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 14 / 14
• Subtask 3: 26 / 26
• Subtask 4: 11 / 11
• Subtask 5: 0 / 44