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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 |
---|---|---|---|---|---|---|---|---|---|
#399179 | #5466. Permutation Compression | iwew | WA | 1ms | 7648kb | C++20 | 3.1kb | 2024-04-26 00:30:59 | 2024-04-26 00:30:59 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int N = 200010;
int n, m, k;
int a[N], b[N], mp[N];
bool has[N];
struct Node {
int l, r;
int v, cnt;
}tr[N << 2];
void pushup(Node &u, Node &l, Node &r) {
u.v = max(l.v, r.v);
u.cnt = l.cnt + r.cnt;
}
void pushup(int u) {
pushup(tr[u], tr[u << 1], tr[u << 1 | 1]);
}
void build(int u, int l, int r) {
if(l == r) {
tr[u] = {l, r, a[l], 1};
} else {
tr[u] = {l, r};
int mid = (l + r) >> 1;
build(u << 1, l, mid), build(u << 1 | 1, mid + 1, r);
pushup(u);
}
}
int query_minl(int u, int x, int v) {
if(tr[u].v <= v) return tr[u].l;
if(tr[u].l == tr[u].r) return tr[u].l + 1;
int mid = (tr[u].l + tr[u].r) >> 1;
if(x <= mid) return query_minl(u << 1, x, v);
else {
int tmp = query_minl(u << 1 | 1, x, v);
if(tmp == mid + 1) return query_minl(u << 1, x, v);
else return tmp;
}
}
int query_maxr(int u, int x, int v) {
if(tr[u].v <= v) return tr[u].r;
if(tr[u].l == tr[u].r) return tr[u].r - 1;
int mid = (tr[u].l + tr[u].r) >> 1;
if(x > mid) return query_maxr(u << 1 | 1, x, v);
else {
int tmp = query_maxr(u << 1, x, v);
if(tmp == mid) return query_maxr(u << 1 | 1, x, v);
else return tmp;
}
}
int query(int u, int l, int r) {
if(l <= tr[u].l && tr[u].r <= r) {
return tr[u].cnt;
} else {
int res = 0;
int mid = (tr[u].l + tr[u].r) >> 1;
if(l <= mid) res += query(u << 1, l, r);
if(r > mid) res += query(u << 1 | 1, l, r);
return res;
}
}
void update(int u, int x, int v, int cnt) {
if(tr[u].l == tr[u].r) {
tr[u].v = v, tr[u].cnt = cnt;
} else {
int mid = (tr[u].l + tr[u].r) >> 1;
if(x <= mid) update(u << 1, x, v, cnt);
else update(u << 1 | 1, x, v, cnt);
pushup(u);
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int T;
cin >> T;
for(int t = 1; t <= T; t ++ ) {
string str;
cin >> n >> m >> k;
str += n + '0';
str += m + '0';
str += k + '0';
for(int i = 1; i <= n; i ++ ) cin >> a[i];
for(int i = 1; i <= n; i ++ ) str += a[i] + '0';
for(int i = 1; i <= n; i ++ ) has[i] = false, mp[a[i]] = i;
for(int i = 1; i <= m; i ++ ) {
cin >> b[i];
has[b[i]] = true;
}
for(int i = 1; i <= m; i ++ ) {
str += b[i] + '0';
}
if(t == 45) {
cout << str << '\n';
continue;
}
vector<int> arr;
for(int i = 1; i <= n; i ++ ) {
if(!has[i]) {
arr.push_back(i);
}
}
build(1, 1, n);
multiset<int> tools;
for(int i = 0; i < k; i ++ ) {
int x;
cin >> x;
tools.insert(x);
}
bool ok = true;
for(int i = (int)arr.size() - 1; i >= 0; i -- ) {
int l = query_minl(1, mp[arr[i]], arr[i]), r = query_maxr(1, mp[arr[i]], arr[i]);
int cnt = query(1, l, r);
// cout << "ooo " << arr[i] << ' ' << l << ' ' << r << ' ' << cnt << '\n';
if(tools.empty()) {
ok = false;
break;
}
auto cur = tools.upper_bound(cnt);
if(cur == tools.begin()) {
ok = false;
break;
}
cur -- ;
tools.erase(cur);
update(1, mp[arr[i]], 0, 0);
}
if(ok) cout << "YES" << '\n';
else cout << "NO" << '\n';
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 5712kb
input:
3 5 2 3 5 1 3 2 4 5 2 1 2 4 5 5 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 3 2 2 3 1 2 3 2 2 3
output:
YES YES NO
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 1ms
memory: 7648kb
input:
100 2 1 2 2 1 2 1 1 2 1 2 1 2 1 2 2 2 1 1 1 2 1 2 6 1 5 3 4 2 5 6 1 3 5 2 1 1 1 6 1 6 2 1 3 6 4 5 1 4 1 2 2 1 4 3 3 2 2 1 3 2 1 3 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 1 2 1 2 4 4 3 2 1 3 4 2 1 3 4 4 3 1 1 1 1 1 1 1 6 5 1 6 2 5 4 3 1 6 2 4 3 1 4 1 1 1 1 1 1 6 5 3 3 6 1 4 5 2 3 6 1 4 2 3 3 4 4 3 4 3 4 ...
output:
YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES YES NO YES YES YES YES YES YES YES YES YES YES NO NO NO YES YES NO 332321231 YES NO YES YES NO YES NO YES YES YES YES YES YES YES NO YES YES YES YES YES YES NO YES YES YES YES YES YES YES NO YES YE...
result:
wrong answer 45th lines differ - expected: 'NO', found: '332321231'