#include <bits/stdc++.h> using namespace std; struct Slot { int count; int left; int iteration; }; int main() { std::ios_base::sync_with_stdio(false); map<unsigned long long, Slot> szprotki; int n; cin >> n; unsigned long long szprotka; for(int i = 0; i < n; i++) { cin >> szprotka; // cout << "szprotka: " << szprotka << endl; if (szprotki.find(szprotka) != szprotki.end()) { szprotki[szprotka].count += 1; } else { Slot sl = {1, 0, -1}; szprotki.insert(make_pair(szprotka, sl)); } } int q; cin >> q; for (int i = 0; i < q; i++) { int kind; cin >> kind; if (kind == 1) { unsigned long long s; cin >> s; unsigned long long k; cin >> k; // cout << "Atak szczupaka: " << s << " " << k << endl; auto it = szprotki.lower_bound(s); if (s >= k) { cout << "0" << endl; continue; } // cannot even do the first munch, goodbye if (it == szprotki.begin()) { cout << "-1" << endl; continue; // go to next i } if (it == szprotki.end()) { // can eat them all int eaten = 0; auto cur = prev(it, 1); for (auto mcur = cur; mcur != szprotki.begin(); mcur = prev(mcur, 1)) { unsigned long long szpw = mcur -> first; if ((mcur -> second).iteration < i) { (mcur -> second).left = (mcur -> second).count; (mcur -> second).iteration = i; } while ((mcur -> second).left > 0) { eaten += 1; (mcur -> second).left -= 1; s += (mcur -> first); if (s >= k) { cout << eaten << endl; break; } } if (s >= k) { break; } } if (s >= k) continue; auto mcur = szprotki.begin(); unsigned long long szpw = mcur -> first; if ((mcur -> second).iteration < i) { (mcur -> second).left = (mcur -> second).count; (mcur -> second).iteration = i; } while ((mcur -> second).left > 0) { eaten += 1; (mcur -> second).left -= 1; s += (mcur -> first); if (s >= k) { cout << eaten << endl; break; } } if (s >= k) continue; cout << "-1" << endl; } else { // now we will move by munches... int eaten = 0; while (s <= k) { auto it = szprotki.lower_bound(s); unsigned long long nextmunch; if (it == szprotki.end()) { nextmunch = k; } else { nextmunch = it -> first; } // cout << "s " << s << " k " << k << " nextmunch" << nextmunch << endl; auto cur = prev(it, 1); for (auto mcur = cur; mcur != szprotki.begin(); mcur = prev(mcur, 1)) { unsigned long long szpw = mcur -> first; if ((mcur -> second).iteration < i) { (mcur -> second).left = (mcur -> second).count; (mcur -> second).iteration = i; } while ((mcur -> second).left > 0) { eaten += 1; (mcur -> second).left -= 1; s += (mcur -> first); if (s >= k) { cout << eaten << endl; break; } if (s > nextmunch) { break; } } if (s >= k || s > nextmunch) { break; } } if (s >= k) break; if (s > nextmunch) continue; auto mcur = szprotki.begin(); unsigned long long szpw = mcur -> first; if ((mcur -> second).iteration < i) { (mcur -> second).left = (mcur -> second).count; (mcur -> second).iteration = i; } while ((mcur -> second).left > 0) { eaten += 1; (mcur -> second).left -= 1; s += (mcur -> first); if (s >= k) { cout << eaten << endl; break; } if (s > nextmunch) { break; } } if (s >= k) break; if (s > nextmunch) continue; cout << "-1" << endl; break; } } } else if (kind == 2) { unsigned long long szprotka; cin >> szprotka; if (szprotki.find(szprotka) != szprotki.end()) { szprotki[szprotka].count += 1; } else { Slot sl = {1, 0, -1}; szprotki.insert(make_pair(szprotka, sl)); } } else { // kind == 3 unsigned long long szprotka; cin >> szprotka; szprotki[szprotka].count -= 1; if (szprotki[szprotka].count == 0) { szprotki.erase(szprotka); } } } 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | #include <bits/stdc++.h> using namespace std; struct Slot { int count; int left; int iteration; }; int main() { std::ios_base::sync_with_stdio(false); map<unsigned long long, Slot> szprotki; int n; cin >> n; unsigned long long szprotka; for(int i = 0; i < n; i++) { cin >> szprotka; // cout << "szprotka: " << szprotka << endl; if (szprotki.find(szprotka) != szprotki.end()) { szprotki[szprotka].count += 1; } else { Slot sl = {1, 0, -1}; szprotki.insert(make_pair(szprotka, sl)); } } int q; cin >> q; for (int i = 0; i < q; i++) { int kind; cin >> kind; if (kind == 1) { unsigned long long s; cin >> s; unsigned long long k; cin >> k; // cout << "Atak szczupaka: " << s << " " << k << endl; auto it = szprotki.lower_bound(s); if (s >= k) { cout << "0" << endl; continue; } // cannot even do the first munch, goodbye if (it == szprotki.begin()) { cout << "-1" << endl; continue; // go to next i } if (it == szprotki.end()) { // can eat them all int eaten = 0; auto cur = prev(it, 1); for (auto mcur = cur; mcur != szprotki.begin(); mcur = prev(mcur, 1)) { unsigned long long szpw = mcur -> first; if ((mcur -> second).iteration < i) { (mcur -> second).left = (mcur -> second).count; (mcur -> second).iteration = i; } while ((mcur -> second).left > 0) { eaten += 1; (mcur -> second).left -= 1; s += (mcur -> first); if (s >= k) { cout << eaten << endl; break; } } if (s >= k) { break; } } if (s >= k) continue; auto mcur = szprotki.begin(); unsigned long long szpw = mcur -> first; if ((mcur -> second).iteration < i) { (mcur -> second).left = (mcur -> second).count; (mcur -> second).iteration = i; } while ((mcur -> second).left > 0) { eaten += 1; (mcur -> second).left -= 1; s += (mcur -> first); if (s >= k) { cout << eaten << endl; break; } } if (s >= k) continue; cout << "-1" << endl; } else { // now we will move by munches... int eaten = 0; while (s <= k) { auto it = szprotki.lower_bound(s); unsigned long long nextmunch; if (it == szprotki.end()) { nextmunch = k; } else { nextmunch = it -> first; } // cout << "s " << s << " k " << k << " nextmunch" << nextmunch << endl; auto cur = prev(it, 1); for (auto mcur = cur; mcur != szprotki.begin(); mcur = prev(mcur, 1)) { unsigned long long szpw = mcur -> first; if ((mcur -> second).iteration < i) { (mcur -> second).left = (mcur -> second).count; (mcur -> second).iteration = i; } while ((mcur -> second).left > 0) { eaten += 1; (mcur -> second).left -= 1; s += (mcur -> first); if (s >= k) { cout << eaten << endl; break; } if (s > nextmunch) { break; } } if (s >= k || s > nextmunch) { break; } } if (s >= k) break; if (s > nextmunch) continue; auto mcur = szprotki.begin(); unsigned long long szpw = mcur -> first; if ((mcur -> second).iteration < i) { (mcur -> second).left = (mcur -> second).count; (mcur -> second).iteration = i; } while ((mcur -> second).left > 0) { eaten += 1; (mcur -> second).left -= 1; s += (mcur -> first); if (s >= k) { cout << eaten << endl; break; } if (s > nextmunch) { break; } } if (s >= k) break; if (s > nextmunch) continue; cout << "-1" << endl; break; } } } else if (kind == 2) { unsigned long long szprotka; cin >> szprotka; if (szprotki.find(szprotka) != szprotki.end()) { szprotki[szprotka].count += 1; } else { Slot sl = {1, 0, -1}; szprotki.insert(make_pair(szprotka, sl)); } } else { // kind == 3 unsigned long long szprotka; cin >> szprotka; szprotki[szprotka].count -= 1; if (szprotki[szprotka].count == 0) { szprotki.erase(szprotka); } } } return 0; } |