#include <cstdio> #include <vector> #include <string> #include <bitset> #include <cstring> #include <algorithm> using namespace std; typedef long long LL; const int A = 2; const int B = 9; const int M = 840; const int K = 20; vector<vector<bool>> aggregate(const vector<vector<unsigned int>>& dim, int n) { vector<vector<bool>> res(n, vector<bool>(M)); for (int i=0; i<n; ++i) { for (int j=0; j<M; ++j) { bool step = 0; for (int k=A; k<B; ++k) { step |= dim[i][k] & (1 << (j % k)); } res[i][j] = step; } } return res; } vector<vector<int>> zip(const vector<vector<bool>>& dim, int n) { vector<vector<int>> res(n, vector<int>(M)); for (int j=0; j<M; ++j) { int l = n; for (int i=n-1; i>=0; --i) { if (!dim[i][j]) { l = i; } res[i][j] = l; } } return res; } typedef vector<vector<vector<int>>> Con; Con concatenate( const vector<vector<int>>& dim, int n) { Con res; res.push_back(dim); for (int j=0; j<M; ++j) { res[0].push_back(vector<int>(M, n)); } int step = 1; for (int k=0; k<K; ++k) { res.push_back(vector<vector<int>>(n, vector<int>(M))); for (int i=0; i<n; ++i) { for (int j=0; j<M; ++j) { int t = res[k][i][j]; if (t < n) { t = res[k][t][(j + step) % M]; } res[k+1][i][j] = t; } } step *= 2; } return res; } int dist(int a, int b, int t, const Con& con, int n) { int step = 1; int k = 0; while (con[k][a][t] < b) { ++k; step *= 2; } int sum = 0; while (step > 1) { --k; step /= 2; if (con[k][a][t] < b) { sum += step; a = con[k][a][t]; t = (t + step) % M; } } return sum; } int main() { int n, m, q; scanf("%d %d %d", &n, &m, &q); vector<vector<unsigned int>> rows(n, vector<unsigned int>(B, 0)), cols(m, vector<unsigned int>(B, 0)); for (int i=0; i<n; ++i) { for (int j=0; j<m; ++j) { char s[10]; scanf(" %s", &s); int l = strlen(s); reverse(s, s+l); cols[j][l] |= (unsigned int)stoi(s, 0, 2); for (int i=0; i<l; ++i) s[i] = '1' + '0' - s[i]; rows[i][l] |= (unsigned int)stoi(s, 0, 2);; } } auto ragg = aggregate(rows, n); auto cagg = aggregate(cols, m); auto raggr = ragg; reverse(raggr.begin(), raggr.end()); auto caggr = cagg; reverse(caggr.begin(), caggr.end()); auto rzip = zip(ragg, n); auto czip = zip(cagg, m); auto rzipr = zip(raggr, n); auto czipr = zip(caggr, m); auto rcon = concatenate(rzip, n); auto ccon = concatenate(czip, m); auto rconr = concatenate(rzipr, n); auto cconr = concatenate(czipr, m); for (int i=0; i<q; ++i) { int x, y, xx, yy, t; scanf("%d %d %d %d %d", &t, &x, &y, &xx, &yy); auto rcon_ref = &rcon; auto ccon_ref = &ccon; if (x > xx) { x = n-x; xx = n-xx; rcon_ref = &rconr; } if (y > yy) { y = m-y; yy = m-yy; ccon_ref = &cconr; } if ((*rcon_ref)[0][x][(t % M)] < xx) { printf("%d\n", t + dist(x, xx, (t % M), *rcon_ref, n)); } else if ((*ccon_ref)[0][y][(t % M)] < yy) { printf("%d\n", t + dist(y, yy, (t % M), *ccon_ref, m)); } else { printf("%d\n", t); } } 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 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | #include <cstdio> #include <vector> #include <string> #include <bitset> #include <cstring> #include <algorithm> using namespace std; typedef long long LL; const int A = 2; const int B = 9; const int M = 840; const int K = 20; vector<vector<bool>> aggregate(const vector<vector<unsigned int>>& dim, int n) { vector<vector<bool>> res(n, vector<bool>(M)); for (int i=0; i<n; ++i) { for (int j=0; j<M; ++j) { bool step = 0; for (int k=A; k<B; ++k) { step |= dim[i][k] & (1 << (j % k)); } res[i][j] = step; } } return res; } vector<vector<int>> zip(const vector<vector<bool>>& dim, int n) { vector<vector<int>> res(n, vector<int>(M)); for (int j=0; j<M; ++j) { int l = n; for (int i=n-1; i>=0; --i) { if (!dim[i][j]) { l = i; } res[i][j] = l; } } return res; } typedef vector<vector<vector<int>>> Con; Con concatenate( const vector<vector<int>>& dim, int n) { Con res; res.push_back(dim); for (int j=0; j<M; ++j) { res[0].push_back(vector<int>(M, n)); } int step = 1; for (int k=0; k<K; ++k) { res.push_back(vector<vector<int>>(n, vector<int>(M))); for (int i=0; i<n; ++i) { for (int j=0; j<M; ++j) { int t = res[k][i][j]; if (t < n) { t = res[k][t][(j + step) % M]; } res[k+1][i][j] = t; } } step *= 2; } return res; } int dist(int a, int b, int t, const Con& con, int n) { int step = 1; int k = 0; while (con[k][a][t] < b) { ++k; step *= 2; } int sum = 0; while (step > 1) { --k; step /= 2; if (con[k][a][t] < b) { sum += step; a = con[k][a][t]; t = (t + step) % M; } } return sum; } int main() { int n, m, q; scanf("%d %d %d", &n, &m, &q); vector<vector<unsigned int>> rows(n, vector<unsigned int>(B, 0)), cols(m, vector<unsigned int>(B, 0)); for (int i=0; i<n; ++i) { for (int j=0; j<m; ++j) { char s[10]; scanf(" %s", &s); int l = strlen(s); reverse(s, s+l); cols[j][l] |= (unsigned int)stoi(s, 0, 2); for (int i=0; i<l; ++i) s[i] = '1' + '0' - s[i]; rows[i][l] |= (unsigned int)stoi(s, 0, 2);; } } auto ragg = aggregate(rows, n); auto cagg = aggregate(cols, m); auto raggr = ragg; reverse(raggr.begin(), raggr.end()); auto caggr = cagg; reverse(caggr.begin(), caggr.end()); auto rzip = zip(ragg, n); auto czip = zip(cagg, m); auto rzipr = zip(raggr, n); auto czipr = zip(caggr, m); auto rcon = concatenate(rzip, n); auto ccon = concatenate(czip, m); auto rconr = concatenate(rzipr, n); auto cconr = concatenate(czipr, m); for (int i=0; i<q; ++i) { int x, y, xx, yy, t; scanf("%d %d %d %d %d", &t, &x, &y, &xx, &yy); auto rcon_ref = &rcon; auto ccon_ref = &ccon; if (x > xx) { x = n-x; xx = n-xx; rcon_ref = &rconr; } if (y > yy) { y = m-y; yy = m-yy; ccon_ref = &cconr; } if ((*rcon_ref)[0][x][(t % M)] < xx) { printf("%d\n", t + dist(x, xx, (t % M), *rcon_ref, n)); } else if ((*ccon_ref)[0][y][(t % M)] < yy) { printf("%d\n", t + dist(y, yy, (t % M), *ccon_ref, m)); } else { printf("%d\n", t); } } return 0; } |