oj.uz

Submission #470691

# Submission time Handle Problem Language Result Execution time Memory
470691 2021-09-05T06:09:57 Z Return_0 LIS (INOI20_lis) C++17
100 / 100
 2462 ms 222116 KB 
#pragma GCC optimize("Ofast,unroll-loops")
// #pragma comment(linker, "/stack:200000000")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,fma,tune=native")

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

typedef int ll;
typedef long double ld;
typedef pair <ll, ll> pll;

#ifdef SINA
#define dbg(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg1> void __f(const char* name, Arg1&& arg1) { cout << name << " : " << arg1 << std::endl; }
template <typename Arg1, typename... Args> void __f (const char* names, Arg1&& arg1, Args&&... args) {
	const char* comma = strchr(names + 1, ',');cout.write(names, comma - names) << " : " << arg1<<" | ";__f(comma+1, args...); }
#define dbg2(x, j, n) cout<< #x << " : "; output((j), (n), x, 1); cout.flush();
#else
#define dbg(...) 0
#define dbg2(x, j, n) 0
#endif
#define SZ(x) ((ll)((x).size()))
#define File(s, t) freopen(s ".txt", "r", stdin); freopen(t ".txt", "w", stdout);
#define input(j, n, a) for (int _i = (j); _i < (n)+(j); _i++) cin>> a[_i];
#define output(j, n, a, t) for (int _i = (j); _i < (n)+(j); _i++) cout<< a[_i] << (((t) && _i != (n)+(j)-1)? ' ' : '\n');
#define kill(x) return cout<< (x) << endl, 0
#define cl const ll
#define fr first
#define sc second
#define lc (v << 1)
#define rc (lc | 1)
#define mid ((l + r) >> 1)
#define All(x) (x).begin(), (x).end()

cl inf = sizeof(ll) == 4 ? (1e9 + 10) : (3e18), mod = 1e9 + 7, MOD = 998244353;

template <class A,class B> ostream& operator << (ostream& out,const pair<A,B>&a){return out<<'('<<a.first<<", "<<a.second<<')';}
template <class A> ostream& operator << (ostream& out, const vector<A> &a) {
	out<< '['; for (int i = -1; ++i < int(a.size());) out<< a[i] << (i + 1 < int(a.size()) ? ", " : ""); return out<<']'; }
template <class T, typename _t = less <T> > using Tree = tree <T, null_type, _t, rb_tree_tag, tree_order_statistics_node_update>;

cl N = 1e6 + 7;

ll P [N], X [N], a [N], b [N], lis [N], n, ans;
set <ll> pos [N], dpos [N];

struct fenwick {
	ll fen [N];
	inline fenwick () { for (ll i = 1; i < N; i++) add(i, 1); }
	inline void add (ll i, cl &x) { for (; i < N; i += i & -i) fen[i] += x; }
	inline ll kth (ll x) {
		ll ret = 0;
		for (ll i = 20; i--;) if (ret + (1 << i) < N && fen[ret + (1 << i)] < x) ret += 1 << i, x -= fen[ret];
		add(ret + 1, -1); return ret + 1;
	}
} fen;

void upd (cl &i) {
	ans = max(ans, lis[i]);
	for (auto it = dpos[lis[i]].lower_bound(a[i]); it != dpos[lis[i]].end() && X[i] < X[b[*it]];) {
		lis[b[*it]]++; upd(b[*it]);
		dpos[lis[i] + 1].insert(*it); it++;
		dpos[lis[i]].erase(prev(it));
	}
}

int main ()
{
	cin.tie(0)->sync_with_stdio(false);

	cin>> n;
	for (ll i = 1; i <= n; i++) cin>> P[i] >> X[i];
	for (ll i = n; i; i--) b[a[i] = fen.kth(P[i])] = i;
	for (ll i = 1; i <= n; i++) {
		for (ll j = X[i]; --j;) {
			auto it = pos[j].lower_bound(a[i]);
			if (it != pos[j].begin()) lis[i] = max(lis[i], lis[b[*prev(it)]]);
		}
		lis[i]++;
		upd(i);
		pos[X[i]].insert(a[i]);
		dpos[lis[i]].insert(a[i]);
		cout<< ans << '\n';
	}

	cerr<< "\n" __TIMESTAMP__ " - Time elapsed: " << 1000 * clock() / CLOCKS_PER_SEC << "ms\n";

	return 0;
}
/*
6
1 7
2 10
2 11
2 8
4 10
1 2

4
1 3
2 1
1 1
2 2

*/

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 98252 KB Output is correct
2 Correct 76 ms 98156 KB Output is correct
3 Correct 85 ms 98404 KB Output is correct
4 Correct 93 ms 98448 KB Output is correct
5 Correct 91 ms 98436 KB Output is correct
6 Correct 94 ms 98364 KB Output is correct
7 Correct 85 ms 98352 KB Output is correct
8 Correct 85 ms 98380 KB Output is correct
9 Correct 93 ms 98336 KB Output is correct
10 Correct 86 ms 98428 KB Output is correct
11 Correct 86 ms 98404 KB Output is correct
12 Correct 85 ms 98540 KB Output is correct
13 Correct 104 ms 98372 KB Output is correct
14 Correct 94 ms 98396 KB Output is correct
15 Correct 89 ms 98440 KB Output is correct
16 Correct 94 ms 98356 KB Output is correct
17 Correct 101 ms 98324 KB Output is correct
18 Correct 88 ms 98372 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 77 ms 98252 KB Output is correct
2 Correct 76 ms 98156 KB Output is correct
3 Correct 85 ms 98404 KB Output is correct
4 Correct 93 ms 98448 KB Output is correct
5 Correct 91 ms 98436 KB Output is correct
6 Correct 94 ms 98364 KB Output is correct
7 Correct 85 ms 98352 KB Output is correct
8 Correct 85 ms 98380 KB Output is correct
9 Correct 93 ms 98336 KB Output is correct
10 Correct 86 ms 98428 KB Output is correct
11 Correct 86 ms 98404 KB Output is correct
12 Correct 85 ms 98540 KB Output is correct
13 Correct 104 ms 98372 KB Output is correct
14 Correct 94 ms 98396 KB Output is correct
15 Correct 89 ms 98440 KB Output is correct
16 Correct 94 ms 98356 KB Output is correct
17 Correct 101 ms 98324 KB Output is correct
18 Correct 88 ms 98372 KB Output is correct
19 Correct 403 ms 120708 KB Output is correct
20 Correct 394 ms 120752 KB Output is correct
21 Correct 489 ms 119916 KB Output is correct
22 Correct 603 ms 120008 KB Output is correct
23 Correct 431 ms 120732 KB Output is correct
24 Correct 450 ms 120688 KB Output is correct
25 Correct 453 ms 120744 KB Output is correct
26 Correct 505 ms 120792 KB Output is correct
27 Correct 455 ms 120656 KB Output is correct
28 Correct 457 ms 120816 KB Output is correct
29 Correct 445 ms 120804 KB Output is correct
30 Correct 482 ms 120732 KB Output is correct
31 Correct 844 ms 120692 KB Output is correct
32 Correct 761 ms 120752 KB Output is correct
33 Correct 681 ms 120700 KB Output is correct
34 Correct 660 ms 120740 KB Output is correct
35 Correct 722 ms 120772 KB Output is correct
36 Correct 685 ms 120848 KB Output is correct
37 Correct 685 ms 120652 KB Output is correct
38 Correct 726 ms 120828 KB Output is correct
39 Correct 680 ms 120728 KB Output is correct
40 Correct 692 ms 120732 KB Output is correct
41 Correct 326 ms 115972 KB Output is correct
42 Correct 115 ms 101652 KB Output is correct
43 Correct 344 ms 114944 KB Output is correct
44 Correct 324 ms 109860 KB Output is correct
45 Correct 99 ms 100036 KB Output is correct
46 Correct 83 ms 98572 KB Output is correct
47 Correct 179 ms 106404 KB Output is correct
48 Correct 145 ms 103992 KB Output is correct
49 Correct 94 ms 99540 KB Output is correct
50 Correct 83 ms 98516 KB Output is correct
51 Correct 138 ms 103428 KB Output is correct
52 Correct 279 ms 112764 KB Output is correct
53 Correct 241 ms 110404 KB Output is correct
54 Correct 220 ms 109024 KB Output is correct
55 Correct 112 ms 100804 KB Output is correct
56 Correct 257 ms 107056 KB Output is correct
57 Correct 141 ms 102060 KB Output is correct
58 Correct 135 ms 101672 KB Output is correct
59 Correct 92 ms 99136 KB Output is correct
60 Correct 353 ms 111312 KB Output is correct
61 Correct 84 ms 98376 KB Output is correct
62 Correct 192 ms 104516 KB Output is correct
63 Correct 133 ms 101652 KB Output is correct
64 Correct 254 ms 107584 KB Output is correct
65 Correct 232 ms 106584 KB Output is correct
66 Correct 117 ms 100528 KB Output is correct
67 Correct 190 ms 104772 KB Output is correct
68 Correct 155 ms 102564 KB Output is correct
69 Correct 221 ms 106308 KB Output is correct
70 Correct 107 ms 100200 KB Output is correct
71 Correct 2359 ms 222116 KB Output is correct
72 Correct 2349 ms 222060 KB Output is correct
73 Correct 2462 ms 222032 KB Output is correct
74 Correct 2409 ms 222100 KB Output is correct
75 Correct 2333 ms 222108 KB Output is correct
76 Correct 2393 ms 222072 KB Output is correct