#include <bits/stdc++.h> using namespace std; int n, m, k, X = 0; vector<vector<int> > v; vector<bool> visited; bool dfs(const int& x) { if (x == n * m - 1) return true; for (int& i : v[x]) if (!visited[i] && dfs(i)) return true; return false; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n >> m >> k; v.resize(n * m); visited.assign(n * m, false); for (int i = 0; i < n * m; i++) { if (i % n != n - 1) v[i].push_back(i + 1); if (i < n * m - n) v[i].push_back(i + n); } for (int i = 0; i < k; i++) { int x, y, c; cin >> x >> y >> c; x = (x ^ X) % n; y = (y ^ X) % m; visited[x + n * y] = true; if (!dfs(0)) { visited[x + n * y] = false; X ^= c; cout << "TAK\n"; } else cout << "NIE\n"; } }
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 | #include <bits/stdc++.h> using namespace std; int n, m, k, X = 0; vector<vector<int> > v; vector<bool> visited; bool dfs(const int& x) { if (x == n * m - 1) return true; for (int& i : v[x]) if (!visited[i] && dfs(i)) return true; return false; } int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); cin >> n >> m >> k; v.resize(n * m); visited.assign(n * m, false); for (int i = 0; i < n * m; i++) { if (i % n != n - 1) v[i].push_back(i + 1); if (i < n * m - n) v[i].push_back(i + n); } for (int i = 0; i < k; i++) { int x, y, c; cin >> x >> y >> c; x = (x ^ X) % n; y = (y ^ X) % m; visited[x + n * y] = true; if (!dfs(0)) { visited[x + n * y] = false; X ^= c; cout << "TAK\n"; } else cout << "NIE\n"; } } |