#include <iostream> #include <vector> #include <algorithm> using namespace std; int n,m,q; struct mappartition { bool horizontal; int prevbound; int prev_bound[15009]; int next_bound[15009]; void init(bool is_horizontal) { horizontal = is_horizontal; prevbound = -1; int mymax = horizontal ? m : n; for(int i=0; i<=mymax; i++) { prev_bound[i] = -1; next_bound[i] = mymax; } } void add_bound(int idx) { for(int i=prevbound+1; i<=idx; i++) { prev_bound[i] = prevbound; next_bound[i] = idx; } prevbound = idx; } void finish() { int mymax = horizontal ? m : n; for(int i=prevbound+1; i<=mymax; i++) { prev_bound[i] = prevbound; } } int travel(int from, int to) { if(to > from) { return min(to, next_bound[from]); } else { return max(to, prev_bound[from]+1); } } }; string lights[1000000]; // skrzyżowanie (i,j) -> lights[i*m+j] bool passable[2][9][8][15000]; // is wall horizontal, mod, value, wall mappartition p[840]; int cached_dist[2][840][159][159]; // is wall horizontal, mod, from/100, to/100 int distance_between(bool horizontal, int mod, int from, int to, bool check_cache) { int out = 0; if(check_cache){ if(from/100 == to/100) return distance_between(horizontal,mod,from,to,false); int mid1, mid2; if(to > from) { mid1 = (from%100 != 0 ? (from+100)/100*100 : from); mid2 = to/100*100; } else { mid1 = from/100*100; mid2 = (to%100 != 0 ? (to+100)/100*100 : to); } int new_mod = mod; out += distance_between(horizontal, new_mod, from, mid1, false); new_mod = (mod+out)%840; out += cached_dist[horizontal][new_mod][mid1/100][mid2/100]; if(cached_dist[horizontal][new_mod][mid1/100][mid2/100] == -1) cout << mid1 << " " << mid2 << endl; new_mod = (mod+out)%840; out += distance_between(horizontal, new_mod, mid2, to, false); return out; } while(true) { if(p[mod].horizontal != horizontal) { from = to; } else { from = p[mod].travel(from,to); } if(from == to) return out; else { mod = (mod+1)%840; out++; } } } void compute_cached() { for(int i=0; i<2; i++) { for(int j=0; j<840; j++) { for(int k=0; k<=150; k++) { for(int l=0; l<=150; l++) { cached_dist[i][j][k][l] = -1; } } } } for(int hor=0; hor<2; hor++) { int mymax = hor ? m : n; for(int i=0; i<=mymax; i+=100) { for(int mod=0; mod<840; mod++) { cached_dist[hor][mod][i/100][i/100] = 0; } } } for(int hor=0; hor<2; hor++) { int mymax = hor ? m : n; for(int len=100; len<=mymax; len+=100) { for(int i=0; i+len<=mymax; i+=100) { for(int mod=0; mod<840; mod++) { if(len == 100) cached_dist[hor][mod][i/100][(i+len)/100] = distance_between(hor,mod,i,i+len,false); else { int small_dist = cached_dist[hor][mod][i/100][i/100+1]; int new_mod = (mod+small_dist)%840; cached_dist[hor][mod][i/100][(i+len)/100] = small_dist + cached_dist[hor][new_mod][i/100+1][(i+len)/100]; } } } } } for(int hor=0; hor<2; hor++) { int mymax = hor ? m : n; for(int len=100; len<=mymax; len+=100) { for(int i=mymax/100*100; i-len>=0; i-=100) { for(int mod=0; mod<840; mod++) { if(len == 100) cached_dist[hor][mod][i/100][(i-len)/100] = distance_between(hor,mod,i,i-len,false); else { int small_dist = cached_dist[hor][mod][i/100][i/100-1]; int new_mod = (mod+small_dist)%840; cached_dist[hor][mod][i/100][(i-len)/100] = small_dist + cached_dist[hor][new_mod][i/100-1][(i-len)/100]; } } } } } } int main() { ios_base::sync_with_stdio(0); cin >> n >> m >> q; for(int i=0; i<n; i++) { for(int j=0; j<m; j++) { cin >> lights[i*m+j]; int mod = lights[i*m+j].length(); for(int k=0; k<mod; k++) { char c = lights[i*m+j][k]; if(c == '0') passable[0][mod][k][i] = true; else passable[1][mod][k][j] = true; } } } for(int i=0; i<840; i++) { pair<int,int> pos = {0,0}; while(pos.first != n && pos.second != m) { int mod = i % lights[pos.first*m+pos.second].length(); char c = lights[pos.first*m+pos.second][mod]; if(c == '0') pos.first++; else pos.second++; } if(pos.first == n) { // pasy pionowe p[i].init(true); while(pos.second != m) { bool flag = false; for(int mod=2; mod<=8; mod++) { if(passable[1][mod][i%mod][pos.second]) { pos.second++; flag = true; break; } } if(!flag) { p[i].add_bound(pos.second); pos.second++; } } } else { // pasy poziome p[i].init(false); while(pos.first != n) { bool flag = false; for(int mod=2; mod<=8; mod++) { if(passable[0][mod][i%mod][pos.first]) { pos.first++; flag = true; break; } } if(!flag) { p[i].add_bound(pos.first); pos.first++; } } } p[i].finish(); } compute_cached(); for(int i=0; i<q; i++) { // if(i%10000 == 0) cout << i/10000 << "%" << endl; int time, timemod, elapsed; pair<int,int> pos, to; cin >> time >> pos.first >> pos.second >> to.first >> to.second; timemod = time % 840; if(p[timemod].horizontal) { elapsed = distance_between(true, timemod, pos.second, to.second, true); } else { elapsed = distance_between(false, timemod, pos.first, to.first, true); } cout << time+elapsed << endl; } }
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | #include <iostream> #include <vector> #include <algorithm> using namespace std; int n,m,q; struct mappartition { bool horizontal; int prevbound; int prev_bound[15009]; int next_bound[15009]; void init(bool is_horizontal) { horizontal = is_horizontal; prevbound = -1; int mymax = horizontal ? m : n; for(int i=0; i<=mymax; i++) { prev_bound[i] = -1; next_bound[i] = mymax; } } void add_bound(int idx) { for(int i=prevbound+1; i<=idx; i++) { prev_bound[i] = prevbound; next_bound[i] = idx; } prevbound = idx; } void finish() { int mymax = horizontal ? m : n; for(int i=prevbound+1; i<=mymax; i++) { prev_bound[i] = prevbound; } } int travel(int from, int to) { if(to > from) { return min(to, next_bound[from]); } else { return max(to, prev_bound[from]+1); } } }; string lights[1000000]; // skrzyżowanie (i,j) -> lights[i*m+j] bool passable[2][9][8][15000]; // is wall horizontal, mod, value, wall mappartition p[840]; int cached_dist[2][840][159][159]; // is wall horizontal, mod, from/100, to/100 int distance_between(bool horizontal, int mod, int from, int to, bool check_cache) { int out = 0; if(check_cache){ if(from/100 == to/100) return distance_between(horizontal,mod,from,to,false); int mid1, mid2; if(to > from) { mid1 = (from%100 != 0 ? (from+100)/100*100 : from); mid2 = to/100*100; } else { mid1 = from/100*100; mid2 = (to%100 != 0 ? (to+100)/100*100 : to); } int new_mod = mod; out += distance_between(horizontal, new_mod, from, mid1, false); new_mod = (mod+out)%840; out += cached_dist[horizontal][new_mod][mid1/100][mid2/100]; if(cached_dist[horizontal][new_mod][mid1/100][mid2/100] == -1) cout << mid1 << " " << mid2 << endl; new_mod = (mod+out)%840; out += distance_between(horizontal, new_mod, mid2, to, false); return out; } while(true) { if(p[mod].horizontal != horizontal) { from = to; } else { from = p[mod].travel(from,to); } if(from == to) return out; else { mod = (mod+1)%840; out++; } } } void compute_cached() { for(int i=0; i<2; i++) { for(int j=0; j<840; j++) { for(int k=0; k<=150; k++) { for(int l=0; l<=150; l++) { cached_dist[i][j][k][l] = -1; } } } } for(int hor=0; hor<2; hor++) { int mymax = hor ? m : n; for(int i=0; i<=mymax; i+=100) { for(int mod=0; mod<840; mod++) { cached_dist[hor][mod][i/100][i/100] = 0; } } } for(int hor=0; hor<2; hor++) { int mymax = hor ? m : n; for(int len=100; len<=mymax; len+=100) { for(int i=0; i+len<=mymax; i+=100) { for(int mod=0; mod<840; mod++) { if(len == 100) cached_dist[hor][mod][i/100][(i+len)/100] = distance_between(hor,mod,i,i+len,false); else { int small_dist = cached_dist[hor][mod][i/100][i/100+1]; int new_mod = (mod+small_dist)%840; cached_dist[hor][mod][i/100][(i+len)/100] = small_dist + cached_dist[hor][new_mod][i/100+1][(i+len)/100]; } } } } } for(int hor=0; hor<2; hor++) { int mymax = hor ? m : n; for(int len=100; len<=mymax; len+=100) { for(int i=mymax/100*100; i-len>=0; i-=100) { for(int mod=0; mod<840; mod++) { if(len == 100) cached_dist[hor][mod][i/100][(i-len)/100] = distance_between(hor,mod,i,i-len,false); else { int small_dist = cached_dist[hor][mod][i/100][i/100-1]; int new_mod = (mod+small_dist)%840; cached_dist[hor][mod][i/100][(i-len)/100] = small_dist + cached_dist[hor][new_mod][i/100-1][(i-len)/100]; } } } } } } int main() { ios_base::sync_with_stdio(0); cin >> n >> m >> q; for(int i=0; i<n; i++) { for(int j=0; j<m; j++) { cin >> lights[i*m+j]; int mod = lights[i*m+j].length(); for(int k=0; k<mod; k++) { char c = lights[i*m+j][k]; if(c == '0') passable[0][mod][k][i] = true; else passable[1][mod][k][j] = true; } } } for(int i=0; i<840; i++) { pair<int,int> pos = {0,0}; while(pos.first != n && pos.second != m) { int mod = i % lights[pos.first*m+pos.second].length(); char c = lights[pos.first*m+pos.second][mod]; if(c == '0') pos.first++; else pos.second++; } if(pos.first == n) { // pasy pionowe p[i].init(true); while(pos.second != m) { bool flag = false; for(int mod=2; mod<=8; mod++) { if(passable[1][mod][i%mod][pos.second]) { pos.second++; flag = true; break; } } if(!flag) { p[i].add_bound(pos.second); pos.second++; } } } else { // pasy poziome p[i].init(false); while(pos.first != n) { bool flag = false; for(int mod=2; mod<=8; mod++) { if(passable[0][mod][i%mod][pos.first]) { pos.first++; flag = true; break; } } if(!flag) { p[i].add_bound(pos.first); pos.first++; } } } p[i].finish(); } compute_cached(); for(int i=0; i<q; i++) { // if(i%10000 == 0) cout << i/10000 << "%" << endl; int time, timemod, elapsed; pair<int,int> pos, to; cin >> time >> pos.first >> pos.second >> to.first >> to.second; timemod = time % 840; if(p[timemod].horizontal) { elapsed = distance_between(true, timemod, pos.second, to.second, true); } else { elapsed = distance_between(false, timemod, pos.first, to.first, true); } cout << time+elapsed << endl; } } |