#include <iostream> #include <algorithm> #include <vector> using namespace std; struct car { int left, right, height, id; car(int id, int x1, int y1, int x2, int y2) : left(x1), right(x2), height(y2 - y1), id(id) {} }; typedef vector<int> vi; typedef vector<int>::iterator vi_it; typedef vector<car> vc; typedef vector<car>::iterator vc_it; typedef vector<car>::reverse_iterator vc_rit; bool cars_cmp(const car & c1, const car & c2) { return c1.right <= c2.right; } struct comparer { static vector<int> order; comparer(const vector<car> & cars) { if (cars.size() > order.size()) order.resize(cars.size()); for (vector<car>::const_iterator c = cars.begin(); c != cars.end(); ++c) order[c->id] = c - cars.begin(); } bool less(const car & c1, const car & c2) const { return order[c1.id] < order[c2.id]; } }; vector<int> comparer::order; bool merge(vc_it l, vc_it r, vc_it m, int h, const comparer & cmp) { static vector<car> merge_pom; static vector<int> max_h; merge_pom.clear(); max_h.clear(); merge_pom.insert(merge_pom.begin(), l, m); int akt_max = 0; for(vc_rit i = merge_pom.rbegin(); i != merge_pom.rend(); ++i) { akt_max = max(akt_max, i->height); max_h.push_back(akt_max); } vc_it i = merge_pom.begin(), j = m, k = l; vi_it ih = max_h.begin(); bool ok = true; while(ok && i != merge_pom.end() && j != r) { if (cmp.less(*i, *j)) { *k = *i; ++i; ++ih; ++k; } else { ok = (h - *ih) >= j->height; *k = *j; ++j; ++k; } } if (ok) while(i != merge_pom.end()) { *k = *i; ++i; ++k; } return ok; } bool merge_sort_verify(vc_it l, vc_it r, int h, const comparer & cmp) { if (distance(l, r) == 1) return true; vc_it m = l + distance(l, r) / 2; bool ok = merge_sort_verify(l, m, h, cmp) && merge_sort_verify(m, r, h, cmp); return ok && merge(l, r, m, h, cmp); } int main(int argc, char const *argv[]) { ios_base::sync_with_stdio(false); int t, n, w; cin >> t; vector<car> initial; vector<car> final; for (int i = 0; i < t; ++i) { cin >> n >> w; initial.clear(); final.clear(); int x1, y1, x2, y2; for (int j = 0; j < n; ++j) { cin >> x1 >> y1 >> x2 >> y2; initial.push_back(car(j, x1, y1, x2, y2)); } for (int j = 0; j < n; ++j) { cin >> x1 >> y1 >> x2 >> y2; final.push_back(car(j, x1, y1, x2, y2)); } sort(initial.begin(), initial.end(), cars_cmp); sort(final.begin(), final.end(), cars_cmp); comparer cmp(final); bool ok = merge_sort_verify(initial.begin(), initial.end(), w, cmp); if (ok) cout << "TAK" << endl; else cout << "NIE" << endl; } 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 | #include <iostream> #include <algorithm> #include <vector> using namespace std; struct car { int left, right, height, id; car(int id, int x1, int y1, int x2, int y2) : left(x1), right(x2), height(y2 - y1), id(id) {} }; typedef vector<int> vi; typedef vector<int>::iterator vi_it; typedef vector<car> vc; typedef vector<car>::iterator vc_it; typedef vector<car>::reverse_iterator vc_rit; bool cars_cmp(const car & c1, const car & c2) { return c1.right <= c2.right; } struct comparer { static vector<int> order; comparer(const vector<car> & cars) { if (cars.size() > order.size()) order.resize(cars.size()); for (vector<car>::const_iterator c = cars.begin(); c != cars.end(); ++c) order[c->id] = c - cars.begin(); } bool less(const car & c1, const car & c2) const { return order[c1.id] < order[c2.id]; } }; vector<int> comparer::order; bool merge(vc_it l, vc_it r, vc_it m, int h, const comparer & cmp) { static vector<car> merge_pom; static vector<int> max_h; merge_pom.clear(); max_h.clear(); merge_pom.insert(merge_pom.begin(), l, m); int akt_max = 0; for(vc_rit i = merge_pom.rbegin(); i != merge_pom.rend(); ++i) { akt_max = max(akt_max, i->height); max_h.push_back(akt_max); } vc_it i = merge_pom.begin(), j = m, k = l; vi_it ih = max_h.begin(); bool ok = true; while(ok && i != merge_pom.end() && j != r) { if (cmp.less(*i, *j)) { *k = *i; ++i; ++ih; ++k; } else { ok = (h - *ih) >= j->height; *k = *j; ++j; ++k; } } if (ok) while(i != merge_pom.end()) { *k = *i; ++i; ++k; } return ok; } bool merge_sort_verify(vc_it l, vc_it r, int h, const comparer & cmp) { if (distance(l, r) == 1) return true; vc_it m = l + distance(l, r) / 2; bool ok = merge_sort_verify(l, m, h, cmp) && merge_sort_verify(m, r, h, cmp); return ok && merge(l, r, m, h, cmp); } int main(int argc, char const *argv[]) { ios_base::sync_with_stdio(false); int t, n, w; cin >> t; vector<car> initial; vector<car> final; for (int i = 0; i < t; ++i) { cin >> n >> w; initial.clear(); final.clear(); int x1, y1, x2, y2; for (int j = 0; j < n; ++j) { cin >> x1 >> y1 >> x2 >> y2; initial.push_back(car(j, x1, y1, x2, y2)); } for (int j = 0; j < n; ++j) { cin >> x1 >> y1 >> x2 >> y2; final.push_back(car(j, x1, y1, x2, y2)); } sort(initial.begin(), initial.end(), cars_cmp); sort(final.begin(), final.end(), cars_cmp); comparer cmp(final); bool ok = merge_sort_verify(initial.begin(), initial.end(), w, cmp); if (ok) cout << "TAK" << endl; else cout << "NIE" << endl; } return 0; } |