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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#577054 | #8546. Min or Max 2 | ucup-team4435# | WA | 204ms | 3644kb | C++20 | 9.7kb | 2024-09-20 00:50:38 | 2024-09-20 00:50:39 |
Judging History
answer
#pragma GCC optimize("Ofast")
#include "bits/stdc++.h"
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define rep1(i, n) for (int i = 1; i < (n); ++i)
#define rep1n(i, n) for (int i = 1; i <= (n); ++i)
#define repr(i, n) for (int i = (n) - 1; i >= 0; --i)
#define pb push_back
#define eb emplace_back
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define each(x, a) for (auto &x : a)
#define ar array
#define vec vector
#define range(i, n) rep(i, n)
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using str = string;
using pi = pair<int, int>;
using pl = pair<ll, ll>;
using vi = vector<int>;
using vl = vector<ll>;
using vpi = vector<pair<int, int>>;
using vvi = vector<vi>;
int Bit(int mask, int b) { return (mask >> b) & 1; }
template<class T>
bool ckmin(T &a, const T &b) {
if (b < a) {
a = b;
return true;
}
return false;
}
template<class T>
bool ckmax(T &a, const T &b) {
if (b > a) {
a = b;
return true;
}
return false;
}
// [l, r)
template<typename T, typename F>
T FindFirstTrue(T l, T r, const F &predicat) {
--l;
while (r - l > 1) {
T mid = l + (r - l) / 2;
if (predicat(mid)) {
r = mid;
} else {
l = mid;
}
}
return r;
}
template<typename T, typename F>
T FindLastFalse(T l, T r, const F &predicat) {
return FindFirstTrue(l, r, predicat) - 1;
}
const ll INF = 2e18;
const int INFi = 1e9;
const int N = 2e5 + 5;
const int LG = 20;
template<typename node>
class segtree {
private:
void build(int v, int vl, int vr) {
if (vr - vl <= 1)
return;
int vm = (vl + vr) >> 1;
build(v << 1, vl, vm);
build(v << 1 | 1, vm, vr);
tree[v] = node::merge(tree[v << 1], tree[v << 1 | 1]);
}
template<typename T>
void build(int v, int vl, int vr, const std::vector<T> &arr) {
if (vl == vr)
return;
if (vr - vl == 1) {
tree[v] = node(arr[vl]);
return;
}
int vm = (vl + vr) >> 1;
build(v << 1, vl, vm, arr);
build(v << 1 | 1, vm, vr, arr);
tree[v] = node::merge(tree[v << 1], tree[v << 1 | 1]);
}
template<typename... Args>
void _update(int v, int vl, int vr, int l, int r, Args &&... args) {
if (r <= vl || vr <= l)
return;
if (l <= vl && vr <= r) {
tree[v].apply(std::forward<Args>(args)..., vl, vr);
return;
}
int vm = (vl + vr) >> 1;
tree[v].push(tree[v << 1], vl, vr, vl, vm);
tree[v].push(tree[v << 1 | 1], vl, vr, vm, vr);
tree[v].clear_after_push();
_update(v << 1, vl, vm, l, r, std::forward<Args>(args)...);
_update(v << 1 | 1, vm, vr, l, r, std::forward<Args>(args)...);
tree[v] = node::merge(tree[v << 1], tree[v << 1 | 1]);
}
node _query(int v, int vl, int vr, int l, int r) {
if (l <= vl && vr <= r)
return tree[v];
int vm = (vl + vr) >> 1;
tree[v].push(tree[v << 1], vl, vr, vl, vm);
tree[v].push(tree[v << 1 | 1], vl, vr, vm, vr);
tree[v].clear_after_push();
if (r <= vm)
return _query(v << 1, vl, vm, l, r);
if (vm <= l)
return _query(v << 1 | 1, vm, vr, l, r);
return node::merge(_query(v << 1, vl, vm, l, r), _query(v << 1 | 1, vm, vr, l, r));
}
template<typename T>
int _find_first(int v, int vl, int vr, int from, const T &checker) {
if (vr <= from)
return n;
if (from <= vl && !checker(tree[v], vl, vr))
return n;
if (vr - vl == 1)
return vl;
int vm = (vl + vr) >> 1;
tree[v].push(tree[v << 1], vl, vr, vl, vm);
tree[v].push(tree[v << 1 | 1], vl, vr, vm, vr);
tree[v].clear_after_push();
int res = _find_first(v << 1, vl, vm, from, checker);
return res == n ? _find_first(v << 1 | 1, vm, vr, from, checker) : res;
}
template<typename T>
int _find_last(int v, int vl, int vr, int from, const T &checker) {
if (from <= vl)
return -1;
if (vr <= from && !checker(tree[v], vl, vr))
return -1;
if (vr - vl == 1)
return vl;
int vm = (vl + vr) >> 1;
tree[v].push(tree[v << 1], vl, vr, vl, vm);
tree[v].push(tree[v << 1 | 1], vl, vr, vm, vr);
tree[v].clear_after_push();
int res = _find_last(v << 1 | 1, vm, vr, from, checker);
return res == -1 ? _find_last(v << 1, vl, vm, from, checker) : res;
}
public:
int n;
std::vector<node> tree;
segtree(int n) : n(n), tree(4 * n, node()) {
build(1, 0, n);
}
template<typename T>
segtree(const std::vector<T> &arr) : n(arr.size()), tree(4 * n) {
build(1, 0, n, arr);
}
int size() const {
return n;
}
/*
* update on interval [l, r)
*/
template<typename... Args>
void update(int l, int r, Args &&... args) {
if (r <= l)
return;
_update(1, 0, n, l, r, std::forward<Args>(args)...);
}
/*
* query on interval [l, r)
*/
node query(int l, int r) {
assert(std::max(0, l) < std::min(n, r)); // or return node() in this case
return _query(1, 0, n, l, r);
}
/*
* trying to find on interval [from, n)
* returns n if not found
*/
template<typename T>
int find_first(int from, const T &checker) {
return _find_first(1, 0, n, from, checker);
}
/*
* trying to find on interval [0, from)
* returns -1 if not found
*/
template<typename T>
int find_last(int from, const T &checker) {
return _find_last(1, 0, n, from, checker);
}
};
/*
struct node {
node() {}
void apply(..., int vl, int vr) {}
void push(node &child, int vl, int vr, int cl, int cr) {}
void clear_after_push() {}
static node merge(const node &left, const node &right) {}
};
*/
struct node {
ll mx, mn;
ll mod_l, mod_r;
node(ll x = INF, ll y = -INF) : mn(x), mx(y), mod_l(-INF), mod_r(INF) {}
void apply(ll lq, ll rq, ll tp, int vl, int vr) {
if (!tp) {
assert(vl + 1 == vr);
mod_l = -INF;
mod_r = INF;
mn = lq;
mx = rq;
return;
}
mod_l = max(lq, min(mod_l, rq));
mod_r = max(lq, min(mod_r, rq));
mn = max(lq, min(mn, rq));
mx = max(lq, min(mx, rq));
assert(mod_l <= mod_r);
}
void push(node &child, int vl, int vr, int cl, int cr) {
if (mod_l != -INF || mod_r != INF) child.apply(mod_l, mod_r, 1, cl, cr);
}
void clear_after_push() {
mod_l = -INF;
mod_r = INF;
}
static node merge(const node &left, const node &right) {
node res;
res.mn = min(left.mn, right.mn);
res.mx = max(left.mx, right.mx);
return res;
}
};
void solve() {
int n;
cin >> n;
vi a(n), b(n);
rep(i, n) {
cin >> a[i];
a[i]--;
}
rep(i, n) {
cin >> b[i];
b[i]--;
}
vl ans(n);
vi took(n);
rep(rot, 2) {
vi qa(n), qb(n);
rep(i, n) qa[a[i]] = i;
rep(i, n) qb[b[i]] = i;
segtree<node> st(n);
st.update(a[0], a[0] + 1, b[0], b[0], 0);
ll L = a[0], R = a[0];
for (int i = 1; i < n; ++i) {
ll x = a[i];
ll y = b[i];
// i > x, max= y
// i < x, min= y
ll min_cur = INF;
ll max_cur = -INF;
R = max(R, x);
L = min(L, x);
if (x + 1 < n) {
if (R > x) {
ll val = st.query(x + 1, n).mn;
if (val != INF) ckmin(min_cur, min(y, val));
}
if (R > x) {
ll val = st.query(x + 1, n).mx;
if (val != -INF) ckmax(max_cur, min(y, val));
}
st.update(x + 1, n, y, INF, 1);
}
if (x > 0) {
if (L < x) {
ll val = st.query(0, x).mn;
if (val != INF) ckmin(min_cur, max(y, val));
}
if (L < x) {
ll val = st.query(0, x).mx;
if (val != -INF) ckmax(max_cur, max(y, val));
}
st.update(0, x, -INF, y, 1);
}
st.update(x, x + 1, min_cur, max_cur, 0);
}
rep(i, n) {
ll lb = st.query(i, i + 1).mn;
ll rb = st.query(i, i + 1).mx;
if (0 <= lb && lb < n && qb[lb] >= qa[i]) {
if (qa[i] == qb[lb]) {
took[qa[i]]++;
}
ans[abs(i - lb)]++;
}
if (0 <= rb && rb < n && lb != rb && qb[rb] >= qa[i]) {
if (qa[i] == qb[rb]) {
took[qa[i]]++;
}
ans[abs(i - rb)]++;
}
}
swap(a, b);
}
rep(i, n) if (took[i] == 2) {
ans[abs(a[i] - b[i])]--;
}
rep(i, n) cout << ans[i] << ' ';
cout << '\n';
}
signed main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout << setprecision(12) << fixed;
int t = 1;
cin >> t;
rep(i, t) {
solve();
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 0ms
memory: 3644kb
input:
4 2 1 2 2 1 5 2 4 1 5 3 2 4 1 5 3 5 1 2 3 4 5 5 4 3 2 1 8 5 8 3 4 2 7 1 6 4 6 3 8 5 1 2 7
output:
2 0 5 0 0 0 0 2 2 2 2 0 5 5 2 2 1 0 0 0
result:
ok 20 numbers
Test #2:
score: -100
Wrong Answer
time: 204ms
memory: 3636kb
input:
66664 7 4 2 6 5 7 1 3 6 5 3 1 4 7 2 10 6 8 10 7 5 1 4 3 9 2 5 10 3 8 6 7 2 9 1 4 9 3 2 4 8 7 6 9 1 5 8 1 2 9 6 7 4 3 5 10 4 3 9 6 7 2 10 1 8 5 3 5 4 1 2 7 10 9 6 8 5 3 4 1 2 5 5 1 3 2 4 5 2 4 3 5 1 2 3 1 4 5 6 2 6 1 3 4 5 6 4 5 1 3 2 10 10 1 2 7 5 8 4 3 9 6 9 4 2 3 6 1 7 8 5 10 5 1 2 4 5 3 4 1 2 5 3...
output:
4 4 2 2 1 0 0 5 6 3 2 2 1 0 0 0 0 5 6 3 2 1 0 0 0 0 4 4 4 3 2 1 0 0 0 0 5 3 0 0 0 2 2 2 2 0 3 3 3 1 0 0 5 7 4 2 1 0 0 0 0 0 5 2 0 0 0 6 4 0 0 0 0 3 3 2 0 0 5 4 2 1 0 0 0 3 2 3 1 0 0 4 6 3 0 0 0 0 3 4 3 2 1 0 0 3 2 2 2 2 2 2 1 0 4 5 3 1 0 0 0 3 4 3 2 3 3 1 0 0 0 8 5 0 0 0 0 0 0 7 8...
result:
wrong answer 69th numbers differ - expected: '3', found: '4'