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//============================================================================ // Name : par.cpp // Author : Grzegorz Gajoch // Description : Potyczki 2014 - parking //============================================================================ #include <cstdio> #include <iostream> #include <cstdlib> #include <cmath> #include <ctime> #include <ctype.h> #include <algorithm> #include <string> #include <string.h> #include <cstring> #include <vector> #include <stack> #include <queue> #include <map> #include <set> #include <list> using namespace std; #define FOR(i,a,b) for(int i = a; i <= b; ++i) #define FORD(i,a,b) for(int i = a; i >= b; --i) #define REP(x, n) for(int x=0; x < (n); ++x) #define VAR(v,i) __typeof(i) v=(i) #define FOREACH(i,c) for(VAR(i,(c).begin());i!=(c).end();++i) #define SIZE(n) (int)n.size() #define ALL(c) c.begin(),c.end() #define PB(n) push_back(n) typedef long long LL; typedef pair<int, int> PII; typedef vector<int> VI; typedef vector<vector<int> > VVI; typedef vector<bool> VB; #define MP make_pair #define ST first #define ND second const int INF = 1000000001; //#define DBGGG #ifdef DBGGG #define debug #define dbg printf #else #undef debug #define dbg //printf #endif int N, H, M; //~~~~~~~~~~~~~~~~~~~~~~~~interval tree~~~~~~~~~~~~~~~~~~~~~~~~~~ const int MAX = 131072; int A[MAX]; inline void update(int k, int val) { k += M; A[k] = val; while (k > 1) { k /= 2; A[k] = max(A[2 * k], A[2 * k + 1]); } } inline int maxi_query(int p, int q) { int tmp1 = 0, tmp2 = 0; if (p == q) return A[p]; if (q < p) return -INF; if ((p) % 2 != 0) { tmp1 = A[p]; ++p; } if ((q) % 2 == 0) { tmp2 = A[q]; --q; } return max(maxi_query((p / 2), (q / 2)), max(tmp1, tmp2)); } int maxi(int p, int q) { p += M; q += M; return maxi_query(p, q); } //~~~~~~~~~~~~~~~~~~~~~~~~interval tree~~~~~~~~~~~~~~~~~~~~~~~~~~ struct Place { int pos, height, number; Place * pair; void print() { printf("(%d %d | %d %d)\n", pos, height, number); } }; struct SORT_BY_NUMBER { bool operator()(Place a, Place b) { if (a.number == b.number) return (a.pos == b.pos); return (a.number < b.number); } }; bool SORT_BY_POSITION(Place a, Place b) { if (a.pos == b.pos) return (a.number < b.number); return (a.pos < b.pos); } set<Place, SORT_BY_NUMBER> Set_by_number; stack<Place> Stack; vector<Place> begin_pos, desired_pos; vector<int> Max_Val_before; void read() { scanf("%d %d", &N, &H); M = 1; while (M < N) { M *= 2; } Max_Val_before.resize(N + 1, 0); FOR(i, 0, 2 * M) A[i] = 0; int x1, x2, y1, y2; Place tmp; REP(x, N) { scanf("%d %d %d %d", &x1, &y1, &x2, &y2); tmp.height = abs(y1 - y2); tmp.pos = min(x1, x2); tmp.number = x + 1; begin_pos.push_back(tmp); } REP(x, N) { scanf("%d %d %d %d", &x1, &y1, &x2, &y2); tmp.height = abs(y1 - y2); tmp.pos = min(x1, x2); tmp.number = x + 1; desired_pos.push_back(tmp); } REP(x, N) { desired_pos[x].pair = &begin_pos[x]; } sort(ALL(desired_pos), SORT_BY_POSITION); FOR(i, 1, N) { desired_pos[i - 1].number = i; desired_pos[i - 1].pair->number = i; } sort(ALL(begin_pos), SORT_BY_POSITION); #ifdef debug printf("BEGIN:\n"); for (auto x : begin_pos) { x.print(); } printf("END:\n"); for (auto x : desired_pos) { x.print(); } #endif } int main(int argc, char **argv) { int Z; scanf("%d", &Z); while (Z--) { read(); for (auto x = begin_pos.rbegin(); x != begin_pos.rend(); ++x) Stack.push(*x); #ifdef debug printf("ON STACK\n"); while (!Stack.empty()) { Stack.top().print(); Stack.pop(); } for (auto x = begin_pos.rbegin(); x != begin_pos.rend(); ++x) Stack.push(*x); printf("\n\n\n"); #endif int next_to_place = 1; bool flag = true; Place top; while (!Stack.empty() || !Set_by_number.empty()) { if (!Stack.empty()) { top = Stack.top(); update(top.number, top.height); dbg("updating %d pos to %d\n", top.number, top.height); #ifdef debug printf("Processing: "); top.print(); printf("BY_NR:\n"); for (auto x : Set_by_number) x.print(); printf("INTERVAL:\n"); FOR(i, M, M + N + 1) { printf("val[%d] = %d\n", i - M, A[i]); } #endif } if (Set_by_number.size() > 0 && Set_by_number.begin()->number == next_to_place) { //przechodzimy do nast�pnej liczby dbg("Trying to place: %d number\n", next_to_place); ++next_to_place; auto minNr = *Set_by_number.begin(); #ifdef debug printf("going after "); minNr.print(); #endif dbg("OK, Trying to move: maxH = %d, top.height = %d\n", Max_Val_before[minNr.number], minNr.height); if (Max_Val_before[minNr.number] + minNr.height > H) { flag = false; } Set_by_number.erase(Set_by_number.begin()); } else { //nie pasuje - zabieramy Max_Val_before[top.number] = maxi(top.number + 1, N); #ifdef debug printf("erasing from stack: max val = %d | ", Max_Val_before[top.number]); top.print(); #endif Stack.pop(); Set_by_number.insert(top); } } if (flag) printf("TAK\n"); else printf("NIE\n"); Set_by_number.clear(); while (!Stack.empty()) Stack.pop(); begin_pos.clear(); desired_pos.clear(); Max_Val_before.clear(); } }
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 | //============================================================================ // Name : par.cpp // Author : Grzegorz Gajoch // Description : Potyczki 2014 - parking //============================================================================ #include <cstdio> #include <iostream> #include <cstdlib> #include <cmath> #include <ctime> #include <ctype.h> #include <algorithm> #include <string> #include <string.h> #include <cstring> #include <vector> #include <stack> #include <queue> #include <map> #include <set> #include <list> using namespace std; #define FOR(i,a,b) for(int i = a; i <= b; ++i) #define FORD(i,a,b) for(int i = a; i >= b; --i) #define REP(x, n) for(int x=0; x < (n); ++x) #define VAR(v,i) __typeof(i) v=(i) #define FOREACH(i,c) for(VAR(i,(c).begin());i!=(c).end();++i) #define SIZE(n) (int)n.size() #define ALL(c) c.begin(),c.end() #define PB(n) push_back(n) typedef long long LL; typedef pair<int, int> PII; typedef vector<int> VI; typedef vector<vector<int> > VVI; typedef vector<bool> VB; #define MP make_pair #define ST first #define ND second const int INF = 1000000001; //#define DBGGG #ifdef DBGGG #define debug #define dbg printf #else #undef debug #define dbg //printf #endif int N, H, M; //~~~~~~~~~~~~~~~~~~~~~~~~interval tree~~~~~~~~~~~~~~~~~~~~~~~~~~ const int MAX = 131072; int A[MAX]; inline void update(int k, int val) { k += M; A[k] = val; while (k > 1) { k /= 2; A[k] = max(A[2 * k], A[2 * k + 1]); } } inline int maxi_query(int p, int q) { int tmp1 = 0, tmp2 = 0; if (p == q) return A[p]; if (q < p) return -INF; if ((p) % 2 != 0) { tmp1 = A[p]; ++p; } if ((q) % 2 == 0) { tmp2 = A[q]; --q; } return max(maxi_query((p / 2), (q / 2)), max(tmp1, tmp2)); } int maxi(int p, int q) { p += M; q += M; return maxi_query(p, q); } //~~~~~~~~~~~~~~~~~~~~~~~~interval tree~~~~~~~~~~~~~~~~~~~~~~~~~~ struct Place { int pos, height, number; Place * pair; void print() { printf("(%d %d | %d %d)\n", pos, height, number); } }; struct SORT_BY_NUMBER { bool operator()(Place a, Place b) { if (a.number == b.number) return (a.pos == b.pos); return (a.number < b.number); } }; bool SORT_BY_POSITION(Place a, Place b) { if (a.pos == b.pos) return (a.number < b.number); return (a.pos < b.pos); } set<Place, SORT_BY_NUMBER> Set_by_number; stack<Place> Stack; vector<Place> begin_pos, desired_pos; vector<int> Max_Val_before; void read() { scanf("%d %d", &N, &H); M = 1; while (M < N) { M *= 2; } Max_Val_before.resize(N + 1, 0); FOR(i, 0, 2 * M) A[i] = 0; int x1, x2, y1, y2; Place tmp; REP(x, N) { scanf("%d %d %d %d", &x1, &y1, &x2, &y2); tmp.height = abs(y1 - y2); tmp.pos = min(x1, x2); tmp.number = x + 1; begin_pos.push_back(tmp); } REP(x, N) { scanf("%d %d %d %d", &x1, &y1, &x2, &y2); tmp.height = abs(y1 - y2); tmp.pos = min(x1, x2); tmp.number = x + 1; desired_pos.push_back(tmp); } REP(x, N) { desired_pos[x].pair = &begin_pos[x]; } sort(ALL(desired_pos), SORT_BY_POSITION); FOR(i, 1, N) { desired_pos[i - 1].number = i; desired_pos[i - 1].pair->number = i; } sort(ALL(begin_pos), SORT_BY_POSITION); #ifdef debug printf("BEGIN:\n"); for (auto x : begin_pos) { x.print(); } printf("END:\n"); for (auto x : desired_pos) { x.print(); } #endif } int main(int argc, char **argv) { int Z; scanf("%d", &Z); while (Z--) { read(); for (auto x = begin_pos.rbegin(); x != begin_pos.rend(); ++x) Stack.push(*x); #ifdef debug printf("ON STACK\n"); while (!Stack.empty()) { Stack.top().print(); Stack.pop(); } for (auto x = begin_pos.rbegin(); x != begin_pos.rend(); ++x) Stack.push(*x); printf("\n\n\n"); #endif int next_to_place = 1; bool flag = true; Place top; while (!Stack.empty() || !Set_by_number.empty()) { if (!Stack.empty()) { top = Stack.top(); update(top.number, top.height); dbg("updating %d pos to %d\n", top.number, top.height); #ifdef debug printf("Processing: "); top.print(); printf("BY_NR:\n"); for (auto x : Set_by_number) x.print(); printf("INTERVAL:\n"); FOR(i, M, M + N + 1) { printf("val[%d] = %d\n", i - M, A[i]); } #endif } if (Set_by_number.size() > 0 && Set_by_number.begin()->number == next_to_place) { //przechodzimy do nast�pnej liczby dbg("Trying to place: %d number\n", next_to_place); ++next_to_place; auto minNr = *Set_by_number.begin(); #ifdef debug printf("going after "); minNr.print(); #endif dbg("OK, Trying to move: maxH = %d, top.height = %d\n", Max_Val_before[minNr.number], minNr.height); if (Max_Val_before[minNr.number] + minNr.height > H) { flag = false; } Set_by_number.erase(Set_by_number.begin()); } else { //nie pasuje - zabieramy Max_Val_before[top.number] = maxi(top.number + 1, N); #ifdef debug printf("erasing from stack: max val = %d | ", Max_Val_before[top.number]); top.print(); #endif Stack.pop(); Set_by_number.insert(top); } } if (flag) printf("TAK\n"); else printf("NIE\n"); Set_by_number.clear(); while (!Stack.empty()) Stack.pop(); begin_pos.clear(); desired_pos.clear(); Max_Val_before.clear(); } } |