#include <cstdio>
#include <vector>
#include <map>
using namespace std;
#define ulli unsigned long long int
#define FOR(i,a,b) for(int (i)=(a); (i)!=(b); ++(i))
// ----------------------------------------------------------
typedef map<ulli, int, std::greater<ulli> > FishMap;
FishMap M;
void erase(ulli w) {
M[w] -= 1;
if (M[w] == 0) M.erase(w);
}
void insert(ulli w) {
M[w] += 1;
}
// ----------------------------------------------------------
int solve(ulli s, ulli k) {
vector<ulli> deleted;
int result = 0;
while (s < k) {
FishMap::iterator it = M.upper_bound(s);
if (it == M.end()) { result = -1; break; }
deleted.push_back(it->first);
erase(it->first);
s += it->first;
++result;
}
FOR(i,0,deleted.size()) insert(deleted[i]);
return result;
}
// ----------------------------------------------------------
int main() {
int n, q, cmd;
ulli s, k, w;
scanf("%d", &n);
FOR(i,0,n) {
scanf("%llu", &w);
insert(w);
}
scanf("%d", &q);
FOR(i,0,q) {
scanf("%d", &cmd);
if (cmd == 1) {
scanf("%llu %llu", &s, &k);
printf("%d\n", solve(s, k));
} else if (cmd == 2) {
scanf("%llu", &w);
insert(w);
} else {
scanf("%llu", &w);
erase(w);
}
}
}
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 | #include <cstdio> #include <vector> #include <map> using namespace std; #define ulli unsigned long long int #define FOR(i,a,b) for(int (i)=(a); (i)!=(b); ++(i)) // ---------------------------------------------------------- typedef map<ulli, int, std::greater<ulli> > FishMap; FishMap M; void erase(ulli w) { M[w] -= 1; if (M[w] == 0) M.erase(w); } void insert(ulli w) { M[w] += 1; } // ---------------------------------------------------------- int solve(ulli s, ulli k) { vector<ulli> deleted; int result = 0; while (s < k) { FishMap::iterator it = M.upper_bound(s); if (it == M.end()) { result = -1; break; } deleted.push_back(it->first); erase(it->first); s += it->first; ++result; } FOR(i,0,deleted.size()) insert(deleted[i]); return result; } // ---------------------------------------------------------- int main() { int n, q, cmd; ulli s, k, w; scanf("%d", &n); FOR(i,0,n) { scanf("%llu", &w); insert(w); } scanf("%d", &q); FOR(i,0,q) { scanf("%d", &cmd); if (cmd == 1) { scanf("%llu %llu", &s, &k); printf("%d\n", solve(s, k)); } else if (cmd == 2) { scanf("%llu", &w); insert(w); } else { scanf("%llu", &w); erase(w); } } } |
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