#include<bits/stdc++.h> using namespace std; int n,m; vector<vector<bool>> a; vector<vector<bool>> path; bool isPath(int x, int y) { if(x == n-1 && y == m-1) return 1; if(a[x][y]) { if(path[x][y]) return 0; path[x][y] = 1; if(x+1 < n) if(isPath(x+1,y)) return 1; if(y+1 < m) if(isPath(x,y+1)) return 1; } return 0; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int k; cin >> n >> m >> k; a.resize(n,vector<bool>(m,1)); path.resize(n, vector<bool>(m,0)); int r, c, z; int x = 0; while(k--) { cin >> r >> c >> z; int l = (r^x)%n; int r = (c^x)%m; a[l][r] = 0; if(!isPath(0,0)) cout << "TAK\n", a[l][r] = 1, x = x^z; else cout << "NIE\n"; fill(path.begin(), path.end(), vector<bool>(m, 0)); } return 0; } /* 3 5 7 0 1 123 1 0 0 4 8 0 2 2 16 2 3 0 18 19 17 3 0 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 | #include<bits/stdc++.h> using namespace std; int n,m; vector<vector<bool>> a; vector<vector<bool>> path; bool isPath(int x, int y) { if(x == n-1 && y == m-1) return 1; if(a[x][y]) { if(path[x][y]) return 0; path[x][y] = 1; if(x+1 < n) if(isPath(x+1,y)) return 1; if(y+1 < m) if(isPath(x,y+1)) return 1; } return 0; } int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); int k; cin >> n >> m >> k; a.resize(n,vector<bool>(m,1)); path.resize(n, vector<bool>(m,0)); int r, c, z; int x = 0; while(k--) { cin >> r >> c >> z; int l = (r^x)%n; int r = (c^x)%m; a[l][r] = 0; if(!isPath(0,0)) cout << "TAK\n", a[l][r] = 1, x = x^z; else cout << "NIE\n"; fill(path.begin(), path.end(), vector<bool>(m, 0)); } return 0; } /* 3 5 7 0 1 123 1 0 0 4 8 0 2 2 16 2 3 0 18 19 17 3 0 0 */ |