#include <iostream>
#include <set>
#include <vector>
using namespace std;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n, q, count;
unsigned long long a, s, k, w;
cin >> n;
multiset<unsigned long long> fish;
vector<unsigned long long> stack;
for (int i = 0; i < n; ++i) {
cin >> a;
fish.insert(a);
}
cin >> q;
stack.reserve(n + q);
for (int i = 0; i < q; ++i) {
cin >> a;
if (a == 1) {
//pike attack!
cin >> s >> k;
count = 0;
auto lower = lower_bound(fish.begin(), fish.end(), s);
while (!fish.empty() && lower != fish.begin() && s < k) {
lower--;
while (lower != fish.begin() && (*lower) >= s) {
lower--;
}
unsigned long long weight = (*lower);
if (weight >= s) {
break;
}
s += weight;
count++;
stack.push_back(weight);
fish.erase(lower);
lower = lower_bound(fish.begin(), fish.end(), s);
}
if (s < k) {
cout << -1 << "\n";
} else {
cout << count << "\n";
}
while (!stack.empty()) {
unsigned long long weight = stack[stack.size() - 1];
fish.insert(weight);
stack.pop_back();
}
} else if (a == 2) {
//add
cin >> w;
fish.insert(w);
} else if (a == 3) {
//remove
cin >> w;
auto lower = lower_bound(fish.begin(), fish.end(), w);
fish.erase(lower);
}
}
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 | #include <iostream> #include <set> #include <vector> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int n, q, count; unsigned long long a, s, k, w; cin >> n; multiset<unsigned long long> fish; vector<unsigned long long> stack; for (int i = 0; i < n; ++i) { cin >> a; fish.insert(a); } cin >> q; stack.reserve(n + q); for (int i = 0; i < q; ++i) { cin >> a; if (a == 1) { //pike attack! cin >> s >> k; count = 0; auto lower = lower_bound(fish.begin(), fish.end(), s); while (!fish.empty() && lower != fish.begin() && s < k) { lower--; while (lower != fish.begin() && (*lower) >= s) { lower--; } unsigned long long weight = (*lower); if (weight >= s) { break; } s += weight; count++; stack.push_back(weight); fish.erase(lower); lower = lower_bound(fish.begin(), fish.end(), s); } if (s < k) { cout << -1 << "\n"; } else { cout << count << "\n"; } while (!stack.empty()) { unsigned long long weight = stack[stack.size() - 1]; fish.insert(weight); stack.pop_back(); } } else if (a == 2) { //add cin >> w; fish.insert(w); } else if (a == 3) { //remove cin >> w; auto lower = lower_bound(fish.begin(), fish.end(), w); fish.erase(lower); } } return 0; } |
English