#include <iostream>
#include <vector>
#include <bitset>
using namespace std;
int n, m;
vector< vector<int> > graph[840];
bitset<1010000> visited;
bitset<1010000> visitedNow;
void DFS(int pos, int time)
{
for(int i = 0; i < graph[time][pos].size(); i++)
if(!visitedNow[graph[time][pos][i]]) {
visitedNow[graph[time][pos][i]] = 1;
visited[graph[time][pos][i]] = 1;
DFS(graph[time][pos][i], time);
}
}
int calculate_time(int start, int ending, int time)
{
visited.reset();
visited[start] = 1;
while (true) {
visitedNow.reset();
for(int i = 1; i <= n * m; i++)
if(visited[i] && !visitedNow[i]) {
DFS(i, time % 840);
}
if(visited[ending])
return time;
time++;
}
}
void solve()
{
int q, plac, tmp, time, x1, y1, x2, y2, start, ending, ending_time;
cin >> n >> m >> q;
string a[n][m];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
cin >> a[i][j];
tmp = (n+1)*(m+1)+5;
for(int i = 0; i < 840; i++)
graph[i].resize(tmp);
for(int t = 0; t < 840; t++) {
for(int i = 0; i < n; i++)
for(int j = 0; j < m; j++) {
plac = (m + 1) * i + j + 1;
if(a[i][j][t%a[i][j].size()] == '0') { // pion
graph[t][plac].push_back(plac + m+1);
graph[t][plac+m+1].push_back(plac);
graph[t][plac+1].push_back(plac + m+2);
graph[t][plac+m+2].push_back(plac+1);
}
else { // poziom
graph[t][plac].push_back(plac + 1);
graph[t][plac+1].push_back(plac);
graph[t][plac+m+1].push_back(plac + 2+m);
graph[t][plac+2+m].push_back(plac+m+1); // m and n are minus 1
}
}
}
n++;
m++;
for(int i = 0; i < q; i++) {
cin >> time >> y1 >> x1 >> y2 >> x2;
start = y1 * n + x1 + 1;
ending = y2 * n + x2 + 1;
ending_time = calculate_time(start, ending, time);
cout << ending_time << '\n';
}
}
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
solve();
return 0;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | #include <iostream> #include <vector> #include <bitset> using namespace std; int n, m; vector< vector<int> > graph[840]; bitset<1010000> visited; bitset<1010000> visitedNow; void DFS(int pos, int time) { for(int i = 0; i < graph[time][pos].size(); i++) if(!visitedNow[graph[time][pos][i]]) { visitedNow[graph[time][pos][i]] = 1; visited[graph[time][pos][i]] = 1; DFS(graph[time][pos][i], time); } } int calculate_time(int start, int ending, int time) { visited.reset(); visited[start] = 1; while (true) { visitedNow.reset(); for(int i = 1; i <= n * m; i++) if(visited[i] && !visitedNow[i]) { DFS(i, time % 840); } if(visited[ending]) return time; time++; } } void solve() { int q, plac, tmp, time, x1, y1, x2, y2, start, ending, ending_time; cin >> n >> m >> q; string a[n][m]; for (int i = 0; i < n; i++) for (int j = 0; j < m; j++) cin >> a[i][j]; tmp = (n+1)*(m+1)+5; for(int i = 0; i < 840; i++) graph[i].resize(tmp); for(int t = 0; t < 840; t++) { for(int i = 0; i < n; i++) for(int j = 0; j < m; j++) { plac = (m + 1) * i + j + 1; if(a[i][j][t%a[i][j].size()] == '0') { // pion graph[t][plac].push_back(plac + m+1); graph[t][plac+m+1].push_back(plac); graph[t][plac+1].push_back(plac + m+2); graph[t][plac+m+2].push_back(plac+1); } else { // poziom graph[t][plac].push_back(plac + 1); graph[t][plac+1].push_back(plac); graph[t][plac+m+1].push_back(plac + 2+m); graph[t][plac+2+m].push_back(plac+m+1); // m and n are minus 1 } } } n++; m++; for(int i = 0; i < q; i++) { cin >> time >> y1 >> x1 >> y2 >> x2; start = y1 * n + x1 + 1; ending = y2 * n + x2 + 1; ending_time = calculate_time(start, ending, time); cout << ending_time << '\n'; } } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); solve(); return 0; } |
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