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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#174912 | #5466. Permutation Compression | realIyxiang# | WA | 2ms | 11656kb | C++14 | 3.2kb | 2023-09-10 14:37:04 | 2023-09-10 14:37:04 |
Judging History
answer
#include <set>
#include <cstdio>
#include <iostream>
#include <algorithm>
using namespace std;
#define rep(i, l, r) for (int i = l; i <= r; ++i)
#define dep(i, l, r) for (int i = r; i >= l; --i)
const int N = 2e5 + 5;
int n, m, c, T, ok;
int a[N], b[N], z[N], l[N], r[N], id[N], pos[N];
multiset <int> S;
namespace ST {
#define ls (p << 1)
#define rs (p << 1 | 1)
#define mid ((l + r) >> 1)
struct node { int mi, mx; } t[N << 2];
void build (int p, int l, int r) {
t[p].mi = n + 1, t[p].mx = 0;
if(l == r) return ;
build(ls, l, mid), build(rs, mid + 1, r);
}
void update (int p, int l, int r, int x, int k) {
t[p].mi = min(t[p].mi, k);
t[p].mx = max(t[p].mx, k);
if(l == r) return ;
if(mid >= x) update(ls, l, mid, x, k) ;
if(mid < x) update(rs, mid + 1, r, x, k);
}
int qmax (int p, int l, int r, int x, int y) {
if(x > y) return 0;
if(l >= x && r <= y) return t[p].mx;
int ans = 0;
if(mid >= x) ans = max(ans, qmax(ls, l, mid, x, y));
if(mid < y) ans = max(ans, qmax(rs, mid + 1, r, x, y));
return ans;
}
int qmin (int p, int l, int r, int x, int y) {
if(x > y) return n + 1;
if(l >= x && r <= y) return t[p].mi;
int ans = n + 1;
if(mid >= x) ans = min(ans, qmin(ls, l, mid, x, y));
if(mid < y) ans = min(ans, qmin(rs, mid + 1, r, x, y));
return ans;
}
}
namespace FT {
int c1[N];
long long c2[N];
void reset () {
rep(i, 1, n) c1[i] = c2[i] = 0;
}
void add (int p, int k) {
for (int i = p; i <= n; i += (i & (-i)))
c1[i] += k, c2[i] += p * k;
}
int qry (int p) {
int ans1 = 0; long long ans2 = 0;
for (int i = p; i; i -= (i & (-i)))
ans1 += c1[i], ans2 += c2[i];
return 1ll * ans1 * (p + 1) - ans2;
}
int qry (int l, int r) {
return l > r ? 0 : qry(r) - qry(l - 1);
}
}
int main () {
ios :: sync_with_stdio(0), cin.tie(0), cout.tie(0);
cin >> T;
while (T--) {
cin >> n >> m >> c, ok = 1;
rep(i, 1, n) cin >> a[i], pos[a[i]] = i;
rep(i, 1, m) cin >> b[i];
rep(i, 1, c) cin >> z[i];
rep(i, 2, m) if(pos[b[i - 1]] > pos[b[i]]) { ok = 0; break ; }
if(!ok || n - c > m) { puts("NO"); continue ; }
S.clear();
rep(i, 1, c) S.insert(z[i]);
rep(i, 1, n) l[i] = 0, r[i] = n + 1;
rep(i, 1, n) id[i] = 0;
rep(i, 1, m) id[b[i]] = 1;
m = 0;
rep(i, 1, n) if(!id[a[i]]) b[++m] = a[i];
ST :: build(1, 1, n);
rep(i, 1, n) {
l[i] = ST :: qmax(1, 1, n, a[i] + 1, n);
if(id[a[i]]) ST :: update(1, 1, n, a[i], i);
}
ST :: build(1, 1, n);
dep(i, 1, n) {
r[i] = ST :: qmin(1, 1, n, a[i] + 1, n);
if(id[a[i]]) ST :: update(1, 1, n, a[i], i);
}
sort(b + 1, b + m + 1, [](int x, int y) { return x > y; });
FT :: reset();
rep(i, 1, m) {
int x = pos[b[i]];
++l[x], --r[x];
int len = r[x] - l[x] + 1 - FT :: qry(l[x], r[x]);
auto it = S.upper_bound(len);
if(it != S.end() && (*it == *S.begin())) { ok = 0; break ; }
--it, S.erase(it);
FT :: add(x, 1);
}
if(ok) puts("YES");
else puts("NO");
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 2ms
memory: 11648kb
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: 11656kb
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 NO NO YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES NO YES NO YES YES NO YES YES YES YES YES NO NO YES YES YES NO NO NO NO YES NO NO YES YES YES NO YES NO YES YES YES NO YES NO NO YES YES YES YES NO YES NO YES YES YES YES YES NO YES NO YES YES YES YES YES YES YES YES...
result:
wrong answer 4th lines differ - expected: 'YES', found: 'NO'