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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#625649 | #7627. Phony | DBsoleil | WA | 1ms | 5824kb | C++23 | 3.8kb | 2024-10-09 20:12:52 | 2024-10-09 20:12:54 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
static constexpr int64_t inf = 0x3f3f3f3f3f3f3f3f;
uint64_t randu64(void) {
static const auto FIXED = chrono::steady_clock::now().time_since_epoch().count();
static mt19937_64 gen(FIXED); return gen();
} // randu64
namespace treap {
static constexpr int MaxN = 5e5 + 5;
struct node {
int ls, rs, size;
uint64_t fix;
int64_t val;
node() = default;
node(int64_t v) : ls(0), rs(0), size(1), fix(randu64()), val(v) { }
} tr[MaxN];
int tn, root;
int newnode(int64_t v) { return tr[++tn] = node(v), tn; }
void pushup(int p) {
tr[p].size = tr[tr[p].ls].size + tr[tr[p].rs].size + 1;
} // treap::pushup
int join(int l, int r) {
if (!l || !r) return l | r;
if (tr[l].fix < tr[r].fix) {
tr[l].rs = join(tr[l].rs, r);
return pushup(l), l;
} else {
tr[r].ls = join(l, tr[r].ls);
return pushup(r), r;
}
} // treap::join
void split_v(int p, int64_t v, int &l, int &r) {
if (!p) return l = r = 0, void();
if (tr[p].val <= v) l = p, split_v(tr[p].rs, v, tr[l].rs, r), pushup(l);
else r = p, split_v(tr[p].rs, v, l, tr[r].rs), pushup(r);
} // treap::split_v
void insert(int64_t v) {
int A, B; split_v(root, v, A, B);
root = join(A, join(newnode(v), B));
} // treap::insert
int64_t find_k(int k) {
int p = root;
// fprintf(stderr, "k = %d, root.size = %d\n", k, tr[root].size);
while (p) {
// fprintf(stderr, ": k = %d, p.size = %d\n", k, tr[p].size);
if (tr[tr[p].rs].size + 1 == k) return tr[p].val;
if (tr[tr[p].rs].size + 1 < k)
k -= tr[tr[p].rs].size + 1, p = tr[p].ls;
else p = tr[p].rs;
} return -inf;
} // treap::find_k
int rankv(int64_t v) {
int p = root, y = 0;
while (p) {
if (tr[p].val <= v) p = tr[p].rs;
else y += tr[tr[p].rs].size + 1, p = tr[p].ls;
} return y;
} // treap::rankv
} // namespace treap
using treap::insert, treap::find_k, treap::rankv;
static constexpr int Maxn = 5e5 + 5;
int n, qn, tn, cur;
int64_t K, b[Maxn], add;
int64_t modK(int64_t x) { return (x %= K) < 0 ? x + K : x; }
int64_t floorK(int64_t x) { return x - modK(x); }
int main(void) {
cin.tie(nullptr)->sync_with_stdio(false);
cin >> n >> qn >> K; tn = cur = 0;
for (int i = 1; i <= n; ++i) cin >> b[i];
sort(b + 1, b + n + 1, greater<int64_t>());
int tn = 0; add = floorK(b[1]);
while (tn <= n && floorK(b[tn + 1]) == add) insert(modK(b[++tn]));
while (qn--) {
string op; int64_t x;
cin >> op >> x;
if (op.front() == 'C') {
while (x) {
// fprintf(stderr, "x = %d, tn = %d, cur = %d\n", x, tn, cur);
if (tn < n && floorK(b[tn + 1]) == add - K) {
int y = rankv(modK(b[tn + 1])) - cur;
if (y != 0) {
if (x <= y) cur += x, x = 0;
else cur += y, x -= y;
}
if (x != 0) {
insert(modK(b[++tn])), ++cur;
}
} else {
if (cur != 0) {
if (tn - cur < x) x -= tn - cur, cur = 0, add -= K;
else cur += x, x = 0;
} else {
if (x < tn) {
cur = x, x = 0;
} else {
if (tn < n) {
int64_t p = floorK(b[tn + 1]) + K;
if ((add - p) / K * tn <= x)
x -= (add - p) / K * tn, add = p;
else add -= x / tn * K, x %= tn;
} else {
add -= x / tn * K, x %= tn;
}
}
}
}
}
} else {
int64_t ans = inf;
if (x <= tn - cur) ans = find_k(cur + x) + add;
else if (x <= tn) ans = find_k(x - (tn - cur)) + add - K;
else ans = b[x];
cout << ans << endl;
}
}
return 0;
} // main
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 5824kb
input:
3 5 5 7 3 9 A 3 C 1 A 2 C 2 A 3
output:
3 4 -1
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 1ms
memory: 5664kb
input:
5 8 8 294 928 293 392 719 A 4 C 200 A 5 C 10 A 2 C 120 A 1 A 3
output:
294 200 191 0 -2
result:
ok 5 lines
Test #3:
score: -100
Wrong Answer
time: 1ms
memory: 5704kb
input:
100 100 233 5101 8001 6561 6329 6305 7745 4321 811 49 1121 3953 8054 8415 9876 6701 4097 6817 6081 495 5521 2389 2042 4721 8119 7441 7840 8001 5756 5561 129 1 5981 4801 7201 8465 7251 6945 5201 5626 3361 5741 3650 7901 2513 8637 3841 5621 9377 101 3661 5105 4241 5137 7501 5561 3581 4901 561 8721 811...
output:
6881 9161 4721 8171 2945 7579 7522 5291 5001 2042 4721 4721 6881 4097 7113 7218 7201 7035 811 6752 2561 6656 6135 6115 3581 5291 1485 5904 5387 2042 5216 5186 5229 4721 5052 4029 4097 4506 4676 4484 4697 2042 4615 4468 4504 4449 3581 4345 115 2042 4358 2042 4396 1485 4251 -17584
result:
wrong answer 4th lines differ - expected: '8200', found: '8171'