#include <iostream>
#include <set>
using namespace std;
typedef long long ll;
int main()
{
ios_base::sync_with_stdio(0);
int n;
cin >> n;
multiset<ll> w;
for (int i = 0; i < n; ++i)
{
ll x;
cin >> x;
w.insert(-x);
}
int q;
cin >> q;
for (int i = 0; i < q; ++i)
{
int op;
cin >> op;
if (op == 1)
{
ll a, b;
cin >> a >> b;
multiset<ll> t = w;
int odp = 0;
while (t.size() != 0 && a < b)
{
multiset<ll>::iterator it = t.lower_bound(-(a - 1));
if (it == t.end())
break;
a += -(*it);
++odp;
t.erase(it);
}
if (a >= b)
cout << odp << endl;
else
cout << "-1" << endl;
}
if (op == 2)
{
ll x;
cin >> x;
w.insert(-x);
}
if (op == 3)
{
ll x;
cin >> x;
w.erase(w.find(-x));
}
}
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 | #include <iostream> #include <set> using namespace std; typedef long long ll; int main() { ios_base::sync_with_stdio(0); int n; cin >> n; multiset<ll> w; for (int i = 0; i < n; ++i) { ll x; cin >> x; w.insert(-x); } int q; cin >> q; for (int i = 0; i < q; ++i) { int op; cin >> op; if (op == 1) { ll a, b; cin >> a >> b; multiset<ll> t = w; int odp = 0; while (t.size() != 0 && a < b) { multiset<ll>::iterator it = t.lower_bound(-(a - 1)); if (it == t.end()) break; a += -(*it); ++odp; t.erase(it); } if (a >= b) cout << odp << endl; else cout << "-1" << endl; } if (op == 2) { ll x; cin >> x; w.insert(-x); } if (op == 3) { ll x; cin >> x; w.erase(w.find(-x)); } } return 0; } |
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