Submission #1127624

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1127624	2024-12-18 10:55:52	ALTAKEXE	Robots (APIO13_robots)	C++17	0 / 100	0 ms	328 KiB

robots

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#include <bits/stdc++.h>
using namespace std;
const int INF = 1e9;
const int dx[] = {0, 1, 0, -1};
const int dy[] = {1, 0, -1, 0};
vector<string> s(500);
bool ok(int x, int y, int w, int h)
{
        return x >= 0 && x < h && y >= 0 && y < w && s[x][y] != 'x';
}
vector<vector<int>> BFS(int w, int h)
{
        vector<vector<int>> d(w * h, vector<int>(w * h, INF));
        for (int i = 0; i < w * h; i++)
        {
                int sx = i / w, sy = i % w;
                if (s[sx][sy] == 'x')
                        continue;
                queue<pair<int, int>> q;
                q.push({sx, sy});
                d[i][i] = 0;
                while (!q.empty())
                {
                        auto [x, y] = q.front();
                        q.pop();
                        int t = x * w + y;
                        for (int k = 0; k < 4; k++)
                        {
                                int xx = x, yy = y, cnt = 0;
                                while (ok(xx + dx[k], yy + dy[k], w, h))
 
 
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• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 30
• Subtask 4: 0 / 40