#pragma GCC optimize("O3") // #define ASSERT #include<bits/stdc++.h> using namespace std; mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); #define losuj(a, b) uniform_int_distribution<long long>(a, b)(rng) #define sz(s) (int)s.size() #define all(s) s.begin(), s.end() #define f first #define s second #define pb push_back #define ii pair<int, int> #define vi vector<int> #define vii vector<ii> #define vvi vector<vi> #define vvii vector<vii> #define ll long long const int LCM = 840; const int N = 15007; const int LOG = 18; const int INF = 1e9 + 7; enum kier { W_LEWO, W_PRAWO }; int n, m, q; short zero[2][LCM][N]; // 0 - lewo, 1 - prawo short skok[LOG][2][LCM][N]; vector<vector<string> > tab; bool mam_wiersze[LCM]; // 0 - wiersze, 1 - kolumny vi min_ans(LCM, INF); bool Union[LCM][N][2]; void prep() { // tworzymy poziomy for (int i = 0; i < n; i++) for (int j = 0; j < m; j++) { int dl = sz(tab[i][j]); for (int k = 0; k < dl; k++) { if (tab[i][j][k] == '0') { for (int l = k; l < LCM; l += dl) Union[l][i][0] = true; // laczymy dwa wiersze } else { for (int l = k; l < LCM; l += dl) Union[l][j][1] = true; // laczymy dwie kolumny } } } for (int tura = 0; tura < LCM; tura++) { bool mam_wiersz = 0; for (int i = 0; i < n; i++) if (Union[tura][i][0] == 0) mam_wiersz = true; #ifdef ASSERT for (int i = 0; i < m; i++) if (Union[tura][i][1] == 0) assert(not mam_wiersz); #endif mam_wiersze[tura] = mam_wiersz; bool ind = mam_wiersz ^ 1; zero[kier::W_LEWO][tura][0] = 0; for (int i = 1; i < N; i++) zero[kier::W_LEWO][tura][i] = Union[tura][i - 1][ind] == 0 ? i : zero[kier::W_LEWO][tura][i - 1]; zero[kier::W_PRAWO][tura][N - 1] = N - 1; for (int i = N - 2; i >= 0; i--) zero[kier::W_PRAWO][tura][i] = Union[tura][i][ind] == 0 ? i : zero[kier::W_PRAWO][tura][i + 1]; } // zrob min_ans for (int i = 0; i < LCM; i++) for (int j = 1; j < LCM; j++) if (mam_wiersze[i] != mam_wiersze[(i + j) % LCM]) { min_ans[i] = j; break; } // zrob skakanie // pierwszy skok for (int tura = 0; tura < LCM; tura++) for (int k = kier::W_LEWO; k <= kier::W_PRAWO; k++) for (int i = 0; i < N; i++) skok[0][k][tura][i] = zero[k][(tura + 1) % LCM][zero[k][tura][i]]; // reszta skoków for (int poz = 1; poz < LOG; poz++) for (int k = kier::W_LEWO; k <= kier::W_PRAWO; k++) for (int tura = 0; tura < LCM; tura++) for (int i = 0; i < N; i++) skok[poz][k][tura][i] = skok[poz - 1][k][(tura + (1 << (poz - 1))) % LCM][skok[poz - 1][k][tura][i]]; } void solve() { cin >> n >> m >> q; tab = vector<vector<string> >(n, vector<string>(m)); for (int i = 0; i < n; i++) for (int j = 0; j < m; j++) cin >> tab[i][j]; prep(); for (int i = 0; i < q; i++) { int t, a, b, c, d; cin >> t >> a >> b >> c >> d; int tmod = t % LCM; int pocz, kon; if (mam_wiersze[tmod]) { pocz = a; kon = c; } else { pocz = b; kon = d; } int my_kier = (pocz <= kon) ? kier::W_PRAWO : kier::W_LEWO; int ans = 0; // proboje na paue skokami int my_poz = pocz; int my_tour = tmod; for (int poz = LOG - 1; poz >= 0; poz--) { int next_poz = skok[poz][my_kier][my_tour][my_poz]; int next_tour = (my_tour + (1 << poz)) % LCM; if ((my_kier == kier::W_LEWO and next_poz > kon) or (my_kier == kier::W_PRAWO and next_poz < kon)) { ans += (1 << poz); my_poz = next_poz; my_tour = next_tour; } } ans++; // wykonujemy ostatni skok, żeby osiągnąć cel if ((my_kier == kier::W_LEWO and kon >= zero[kier::W_LEWO][tmod][pocz]) or (my_kier == kier::W_PRAWO and kon <= zero[kier::W_PRAWO][tmod][pocz])) ans = 0; cout << t + min(ans, min_ans[tmod]) << '\n'; } } int main() { ios::sync_with_stdio(0); cin.tie(0); int tests = 1; // cin >> tests; for (int i = 0; i < tests; i++) 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 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | #pragma GCC optimize("O3") // #define ASSERT #include<bits/stdc++.h> using namespace std; mt19937 rng(chrono::steady_clock::now().time_since_epoch().count()); #define losuj(a, b) uniform_int_distribution<long long>(a, b)(rng) #define sz(s) (int)s.size() #define all(s) s.begin(), s.end() #define f first #define s second #define pb push_back #define ii pair<int, int> #define vi vector<int> #define vii vector<ii> #define vvi vector<vi> #define vvii vector<vii> #define ll long long const int LCM = 840; const int N = 15007; const int LOG = 18; const int INF = 1e9 + 7; enum kier { W_LEWO, W_PRAWO }; int n, m, q; short zero[2][LCM][N]; // 0 - lewo, 1 - prawo short skok[LOG][2][LCM][N]; vector<vector<string> > tab; bool mam_wiersze[LCM]; // 0 - wiersze, 1 - kolumny vi min_ans(LCM, INF); bool Union[LCM][N][2]; void prep() { // tworzymy poziomy for (int i = 0; i < n; i++) for (int j = 0; j < m; j++) { int dl = sz(tab[i][j]); for (int k = 0; k < dl; k++) { if (tab[i][j][k] == '0') { for (int l = k; l < LCM; l += dl) Union[l][i][0] = true; // laczymy dwa wiersze } else { for (int l = k; l < LCM; l += dl) Union[l][j][1] = true; // laczymy dwie kolumny } } } for (int tura = 0; tura < LCM; tura++) { bool mam_wiersz = 0; for (int i = 0; i < n; i++) if (Union[tura][i][0] == 0) mam_wiersz = true; #ifdef ASSERT for (int i = 0; i < m; i++) if (Union[tura][i][1] == 0) assert(not mam_wiersz); #endif mam_wiersze[tura] = mam_wiersz; bool ind = mam_wiersz ^ 1; zero[kier::W_LEWO][tura][0] = 0; for (int i = 1; i < N; i++) zero[kier::W_LEWO][tura][i] = Union[tura][i - 1][ind] == 0 ? i : zero[kier::W_LEWO][tura][i - 1]; zero[kier::W_PRAWO][tura][N - 1] = N - 1; for (int i = N - 2; i >= 0; i--) zero[kier::W_PRAWO][tura][i] = Union[tura][i][ind] == 0 ? i : zero[kier::W_PRAWO][tura][i + 1]; } // zrob min_ans for (int i = 0; i < LCM; i++) for (int j = 1; j < LCM; j++) if (mam_wiersze[i] != mam_wiersze[(i + j) % LCM]) { min_ans[i] = j; break; } // zrob skakanie // pierwszy skok for (int tura = 0; tura < LCM; tura++) for (int k = kier::W_LEWO; k <= kier::W_PRAWO; k++) for (int i = 0; i < N; i++) skok[0][k][tura][i] = zero[k][(tura + 1) % LCM][zero[k][tura][i]]; // reszta skoków for (int poz = 1; poz < LOG; poz++) for (int k = kier::W_LEWO; k <= kier::W_PRAWO; k++) for (int tura = 0; tura < LCM; tura++) for (int i = 0; i < N; i++) skok[poz][k][tura][i] = skok[poz - 1][k][(tura + (1 << (poz - 1))) % LCM][skok[poz - 1][k][tura][i]]; } void solve() { cin >> n >> m >> q; tab = vector<vector<string> >(n, vector<string>(m)); for (int i = 0; i < n; i++) for (int j = 0; j < m; j++) cin >> tab[i][j]; prep(); for (int i = 0; i < q; i++) { int t, a, b, c, d; cin >> t >> a >> b >> c >> d; int tmod = t % LCM; int pocz, kon; if (mam_wiersze[tmod]) { pocz = a; kon = c; } else { pocz = b; kon = d; } int my_kier = (pocz <= kon) ? kier::W_PRAWO : kier::W_LEWO; int ans = 0; // proboje na paue skokami int my_poz = pocz; int my_tour = tmod; for (int poz = LOG - 1; poz >= 0; poz--) { int next_poz = skok[poz][my_kier][my_tour][my_poz]; int next_tour = (my_tour + (1 << poz)) % LCM; if ((my_kier == kier::W_LEWO and next_poz > kon) or (my_kier == kier::W_PRAWO and next_poz < kon)) { ans += (1 << poz); my_poz = next_poz; my_tour = next_tour; } } ans++; // wykonujemy ostatni skok, żeby osiągnąć cel if ((my_kier == kier::W_LEWO and kon >= zero[kier::W_LEWO][tmod][pocz]) or (my_kier == kier::W_PRAWO and kon <= zero[kier::W_PRAWO][tmod][pocz])) ans = 0; cout << t + min(ans, min_ans[tmod]) << '\n'; } } int main() { ios::sync_with_stdio(0); cin.tie(0); int tests = 1; // cin >> tests; for (int i = 0; i < tests; i++) solve(); return 0; } |