#include<bits/stdc++.h> int **M; //int M[9][9]; int R, C; int dfs(int r, int c, int m) { if (r==R-1 && c==C-1) return m+1; M[r][c] = m; if (r+1 < R && M[r+1][c] != m && M[r+1][c] != -1) { if (dfs(r+1, c, m)) { M[r][c] = m+1; return m+1; } } if (c+1 < C && M[r][c+1] != m && M[r][c+1] != -1) { if (dfs(r, c+1, m)) { M[r][c] = m+1; return m+1; } } return 0; } int main() { int k, x = 0; scanf("%d %d %d", &R, &C, &k); int last = 0; M = (int **)malloc(R*sizeof(int *)); for (int i=0; i<R; i++) { M[i] = (int *)malloc(C*sizeof(int)); memset(M[i], 0, C*sizeof(int)); } // memset(M, 0, sizeof(M)); int m = 1; for (int i=1; i<=k; i++) { int r,c,z; scanf("%d %d %d", &r, &c, &z); r = (r ^ x) % R; c = (c ^ x) % C; int old = M[r][c], d; M[r][c] = -1; if (old != last) { d = last; } else { d = dfs(0, 0, m); m+=2; } if (d) { // jest przejscie last = d; // dodano twierdze printf("NIE\n"); } else { // zburzyc twierdze M[r][c] = old; last = dfs(0, 0, m); m+=2; x ^= z; printf("TAK\n"); } } 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 | #include<bits/stdc++.h> int **M; //int M[9][9]; int R, C; int dfs(int r, int c, int m) { if (r==R-1 && c==C-1) return m+1; M[r][c] = m; if (r+1 < R && M[r+1][c] != m && M[r+1][c] != -1) { if (dfs(r+1, c, m)) { M[r][c] = m+1; return m+1; } } if (c+1 < C && M[r][c+1] != m && M[r][c+1] != -1) { if (dfs(r, c+1, m)) { M[r][c] = m+1; return m+1; } } return 0; } int main() { int k, x = 0; scanf("%d %d %d", &R, &C, &k); int last = 0; M = (int **)malloc(R*sizeof(int *)); for (int i=0; i<R; i++) { M[i] = (int *)malloc(C*sizeof(int)); memset(M[i], 0, C*sizeof(int)); } // memset(M, 0, sizeof(M)); int m = 1; for (int i=1; i<=k; i++) { int r,c,z; scanf("%d %d %d", &r, &c, &z); r = (r ^ x) % R; c = (c ^ x) % C; int old = M[r][c], d; M[r][c] = -1; if (old != last) { d = last; } else { d = dfs(0, 0, m); m+=2; } if (d) { // jest przejscie last = d; // dodano twierdze printf("NIE\n"); } else { // zburzyc twierdze M[r][c] = old; last = dfs(0, 0, m); m+=2; x ^= z; printf("TAK\n"); } } return 0; } |