| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 999535 |
2024-06-15T17:42:00 Z |
vjudge1 |
LIS (INOI20_lis) |
C++17 |
|
1550 ms |
143952 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define inf 0x3F3F3F3F3F3F3F3F
struct DSU
{
vector<int> e;
void init(int n)
{
e.assign(n + 1, -1);
}
int get(int x)
{
if (e[x] < 0) return x;
return e[x] = get(e[x]);
}
void unite(int x, int y)
{
x = get(x), y = get(y);
if (x == y) return;
if (e[x] > e[y]) swap(x, y);
e[x] += e[y];
e[y] = x;
}
};
struct BIT
{
int n;
vector<int> ft;
void init(int N)
{
n = N + 5;
ft.assign(n + 5, 0);
}
void add(int pos, int val)
{
for (pos = pos + 1; pos <= n; pos += pos & -pos) ft[pos] += val;
}
int get(int pos, int res = 0)
{
for (pos = pos + 1; pos > 0; pos -= pos & -pos) res += ft[pos];
return res;
}
};
const int MXN = 1e6 + 5;
set<int> st[MXN];
int res[MXN], v[MXN];
int ans = 0;
void add(int i)
{
ans = max(ans, res[i]);
auto it = st[res[i]].begin();
while ((it = st[res[i]].upper_bound(i)) != st[res[i]].end() && v[*it] > v[i])
{
int x = *it;
st[res[i]].erase(it);
res[x] = res[i] + 1;
add(x);
}
st[res[i]].insert(i);
}
signed main()
{
ios::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
array<int, 2> a[n];
for (array<int, 2> &i : a) cin >> i[0] >> i[1];
BIT ft;
ft.init(n);
for (int i = n - 1; i >= 0; i--)
{
int l = 1, r = n;
while (l < r)
{
int mid = (l + r) >> 1;
if (mid - ft.get(mid) >= a[i][0]) r = mid;
else l = mid + 1;
}
a[i][0] = l;
v[l] = a[i][1];
ft.add(l, 1);
}
for (array<int, 2> &i : a)
{
res[i[0]] = 1;
for (int j = 1; j < i[1]; j++)
{
auto it = st[j].lower_bound(i[0]);
if (!(it == st[j].begin() || v[*prev(it)] >= i[1])) res[i[0]] = j + 1;
}
add(i[0]);
cout << ans << '\n';
}
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
50520 KB |
Output is correct |
| 2 |
Correct |
8 ms |
50524 KB |
Output is correct |
| 3 |
Correct |
11 ms |
50616 KB |
Output is correct |
| 4 |
Correct |
12 ms |
50524 KB |
Output is correct |
| 5 |
Correct |
16 ms |
50524 KB |
Output is correct |
| 6 |
Correct |
15 ms |
50700 KB |
Output is correct |
| 7 |
Correct |
13 ms |
50776 KB |
Output is correct |
| 8 |
Correct |
12 ms |
50776 KB |
Output is correct |
| 9 |
Correct |
12 ms |
50604 KB |
Output is correct |
| 10 |
Correct |
13 ms |
50628 KB |
Output is correct |
| 11 |
Correct |
12 ms |
50776 KB |
Output is correct |
| 12 |
Correct |
15 ms |
50640 KB |
Output is correct |
| 13 |
Correct |
16 ms |
50776 KB |
Output is correct |
| 14 |
Correct |
15 ms |
50524 KB |
Output is correct |
| 15 |
Correct |
13 ms |
50700 KB |
Output is correct |
| 16 |
Correct |
14 ms |
50720 KB |
Output is correct |
| 17 |
Correct |
14 ms |
50524 KB |
Output is correct |
| 18 |
Correct |
15 ms |
50768 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
50520 KB |
Output is correct |
| 2 |
Correct |
8 ms |
50524 KB |
Output is correct |
| 3 |
Correct |
11 ms |
50616 KB |
Output is correct |
| 4 |
Correct |
12 ms |
50524 KB |
Output is correct |
| 5 |
Correct |
16 ms |
50524 KB |
Output is correct |
| 6 |
Correct |
15 ms |
50700 KB |
Output is correct |
| 7 |
Correct |
13 ms |
50776 KB |
Output is correct |
| 8 |
Correct |
12 ms |
50776 KB |
Output is correct |
| 9 |
Correct |
12 ms |
50604 KB |
Output is correct |
| 10 |
Correct |
13 ms |
50628 KB |
Output is correct |
| 11 |
Correct |
12 ms |
50776 KB |
Output is correct |
| 12 |
Correct |
15 ms |
50640 KB |
Output is correct |
| 13 |
Correct |
16 ms |
50776 KB |
Output is correct |
| 14 |
Correct |
15 ms |
50524 KB |
Output is correct |
| 15 |
Correct |
13 ms |
50700 KB |
Output is correct |
| 16 |
Correct |
14 ms |
50720 KB |
Output is correct |
| 17 |
Correct |
14 ms |
50524 KB |
Output is correct |
| 18 |
Correct |
15 ms |
50768 KB |
Output is correct |
| 19 |
Correct |
170 ms |
69432 KB |
Output is correct |
| 20 |
Correct |
161 ms |
69524 KB |
Output is correct |
| 21 |
Correct |
212 ms |
68820 KB |
Output is correct |
| 22 |
Correct |
274 ms |
68832 KB |
Output is correct |
| 23 |
Correct |
193 ms |
69400 KB |
Output is correct |
| 24 |
Correct |
176 ms |
69460 KB |
Output is correct |
| 25 |
Correct |
169 ms |
69456 KB |
Output is correct |
| 26 |
Correct |
180 ms |
69504 KB |
Output is correct |
| 27 |
Correct |
174 ms |
69484 KB |
Output is correct |
| 28 |
Correct |
176 ms |
69460 KB |
Output is correct |
| 29 |
Correct |
178 ms |
69424 KB |
Output is correct |
| 30 |
Correct |
170 ms |
69460 KB |
Output is correct |
| 31 |
Correct |
288 ms |
69460 KB |
Output is correct |
| 32 |
Correct |
294 ms |
69460 KB |
Output is correct |
| 33 |
Correct |
288 ms |
69460 KB |
Output is correct |
| 34 |
Correct |
289 ms |
69652 KB |
Output is correct |
| 35 |
Correct |
293 ms |
69460 KB |
Output is correct |
| 36 |
Correct |
292 ms |
69496 KB |
Output is correct |
| 37 |
Correct |
304 ms |
69484 KB |
Output is correct |
| 38 |
Correct |
293 ms |
69456 KB |
Output is correct |
| 39 |
Correct |
287 ms |
69396 KB |
Output is correct |
| 40 |
Correct |
295 ms |
69712 KB |
Output is correct |
| 41 |
Correct |
140 ms |
66384 KB |
Output is correct |
| 42 |
Correct |
26 ms |
55008 KB |
Output is correct |
| 43 |
Correct |
164 ms |
65548 KB |
Output is correct |
| 44 |
Correct |
149 ms |
62152 KB |
Output is correct |
| 45 |
Correct |
18 ms |
51800 KB |
Output is correct |
| 46 |
Correct |
12 ms |
50620 KB |
Output is correct |
| 47 |
Correct |
60 ms |
58188 KB |
Output is correct |
| 48 |
Correct |
43 ms |
56400 KB |
Output is correct |
| 49 |
Correct |
16 ms |
51548 KB |
Output is correct |
| 50 |
Correct |
11 ms |
50776 KB |
Output is correct |
| 51 |
Correct |
39 ms |
56016 KB |
Output is correct |
| 52 |
Correct |
107 ms |
64336 KB |
Output is correct |
| 53 |
Correct |
90 ms |
62860 KB |
Output is correct |
| 54 |
Correct |
77 ms |
61908 KB |
Output is correct |
| 55 |
Correct |
23 ms |
52304 KB |
Output is correct |
| 56 |
Correct |
101 ms |
60660 KB |
Output is correct |
| 57 |
Correct |
46 ms |
55380 KB |
Output is correct |
| 58 |
Correct |
37 ms |
54868 KB |
Output is correct |
| 59 |
Correct |
15 ms |
51036 KB |
Output is correct |
| 60 |
Correct |
159 ms |
63272 KB |
Output is correct |
| 61 |
Correct |
10 ms |
50524 KB |
Output is correct |
| 62 |
Correct |
68 ms |
56708 KB |
Output is correct |
| 63 |
Correct |
41 ms |
54872 KB |
Output is correct |
| 64 |
Correct |
109 ms |
60932 KB |
Output is correct |
| 65 |
Correct |
91 ms |
58196 KB |
Output is correct |
| 66 |
Correct |
31 ms |
52048 KB |
Output is correct |
| 67 |
Correct |
77 ms |
56912 KB |
Output is correct |
| 68 |
Correct |
48 ms |
55544 KB |
Output is correct |
| 69 |
Correct |
89 ms |
58028 KB |
Output is correct |
| 70 |
Correct |
24 ms |
51796 KB |
Output is correct |
| 71 |
Correct |
1546 ms |
143952 KB |
Output is correct |
| 72 |
Correct |
1383 ms |
143952 KB |
Output is correct |
| 73 |
Correct |
1417 ms |
143952 KB |
Output is correct |
| 74 |
Correct |
1481 ms |
143720 KB |
Output is correct |
| 75 |
Correct |
1394 ms |
143700 KB |
Output is correct |
| 76 |
Correct |
1550 ms |
143952 KB |
Output is correct |
