oj.uz

Submission #469211

# Submission time Handle Problem Language Result Execution time Memory
469211 2021-08-31T06:17:26 Z Millad LIS (INOI20_lis) C++14
100 / 100
 2518 ms 217964 KB 
/// In the name of god
#include <bits/stdc++.h>
#pragma GCC target ("avx2")

#define F first
#define S second
#define pb push_back
#define debug(x) cerr << #x << " : " << x << '\n'
     
using namespace std;
typedef int ll;
typedef long double ld;
typedef pair<ll, ll> pll;
     
const ll maxn = 1e6 + 5;

ll q, x[maxn], p[maxn], b[maxn], ind[maxn], seg[maxn * 4], dp[maxn], lis;
set <ll> A[maxn], B[maxn];
vector <ll> Qu;
inline ll get_ind(ll id, ll ps = 0, ll v = 1, ll s = 0, ll e = q){
	if(e - s == 1){
		seg[v] = 1;
		return s;
	}
	ll mid = (e + s) >> 1, lc = v << 1, rc = lc | 1, ind;
	if(ps + (mid - s) - seg[lc] < id)ind = get_ind(id, ps + (mid - s) - seg[lc], rc, mid, e);
	else ind = get_ind(id, ps, lc, s, mid);
	seg[v] = seg[lc] + seg[rc];
	return ind;
}
int main(){
	ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
	cin >> q;
	for(ll i = 0; i < q; i ++)cin >> p[i] >> x[i];
	for(ll i = q - 1; i >= 0; i --){
		ind[i] = get_ind(p[i]);
		b[ind[i]] = x[i];
	}
	set<ll>::iterator pnt;
	for(ll i = 0; i < q; i ++){
		ll id = ind[i], d = 0;
		A[x[i]].insert(id);
		for(ll j = 1; j < x[i]; j ++){
			if(A[j].empty())continue;
			if(*A[j].begin() > id)continue;
			if(*A[j].rbegin() < id){
              d = max(d, dp[*A[j].rbegin()]);
              continue;
            }	
          	pnt = A[j].upper_bound(id);
			pnt --; d = max(d, dp[*pnt]);
		}
      	d ++;
		dp[id] = d; B[d].insert(id);
		Qu.pb(id); lis = max(lis, d);
		while(Qu.size()){
			ll id2 = Qu.back(); Qu.pop_back();
			pnt = B[dp[id2]].lower_bound(id2);
			vector <ll> vec;
			while(true){
				pnt ++;
				if(pnt == B[dp[id2]].end())break;
				if(b[*pnt] < b[id2])break;
				if(b[*pnt] == b[id2])break;
				vec.pb(*pnt);
			}
			for(ll j : vec){
				B[dp[j]].erase(j);
				dp[j] ++; lis = max(lis, dp[j]);
				B[dp[j]].insert(j); Qu.pb(j); 
			}
		}
		cout << lis << '\n';
	}
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 94284 KB Output is correct
2 Correct 53 ms 94212 KB Output is correct
3 Correct 60 ms 94460 KB Output is correct
4 Correct 55 ms 94408 KB Output is correct
5 Correct 74 ms 94532 KB Output is correct
6 Correct 65 ms 94516 KB Output is correct
7 Correct 78 ms 94480 KB Output is correct
8 Correct 61 ms 94404 KB Output is correct
9 Correct 57 ms 94540 KB Output is correct
10 Correct 59 ms 94524 KB Output is correct
11 Correct 65 ms 94460 KB Output is correct
12 Correct 61 ms 94404 KB Output is correct
13 Correct 63 ms 94440 KB Output is correct
14 Correct 76 ms 94404 KB Output is correct
15 Correct 58 ms 94472 KB Output is correct
16 Correct 59 ms 94416 KB Output is correct
17 Correct 60 ms 94436 KB Output is correct
18 Correct 63 ms 94520 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 94284 KB Output is correct
2 Correct 53 ms 94212 KB Output is correct
3 Correct 60 ms 94460 KB Output is correct
4 Correct 55 ms 94408 KB Output is correct
5 Correct 74 ms 94532 KB Output is correct
6 Correct 65 ms 94516 KB Output is correct
7 Correct 78 ms 94480 KB Output is correct
8 Correct 61 ms 94404 KB Output is correct
9 Correct 57 ms 94540 KB Output is correct
10 Correct 59 ms 94524 KB Output is correct
11 Correct 65 ms 94460 KB Output is correct
12 Correct 61 ms 94404 KB Output is correct
13 Correct 63 ms 94440 KB Output is correct
14 Correct 76 ms 94404 KB Output is correct
15 Correct 58 ms 94472 KB Output is correct
16 Correct 59 ms 94416 KB Output is correct
17 Correct 60 ms 94436 KB Output is correct
18 Correct 63 ms 94520 KB Output is correct
19 Correct 217 ms 117328 KB Output is correct
20 Correct 274 ms 117448 KB Output is correct
21 Correct 533 ms 117848 KB Output is correct
22 Correct 653 ms 117496 KB Output is correct
23 Correct 425 ms 117404 KB Output is correct
24 Correct 546 ms 117536 KB Output is correct
25 Correct 446 ms 117488 KB Output is correct
26 Correct 468 ms 117524 KB Output is correct
27 Correct 466 ms 117408 KB Output is correct
28 Correct 467 ms 117548 KB Output is correct
29 Correct 532 ms 117480 KB Output is correct
30 Correct 444 ms 117440 KB Output is correct
31 Correct 1008 ms 117484 KB Output is correct
32 Correct 834 ms 117400 KB Output is correct
33 Correct 738 ms 117480 KB Output is correct
34 Correct 738 ms 117520 KB Output is correct
35 Correct 766 ms 117564 KB Output is correct
36 Correct 823 ms 117412 KB Output is correct
37 Correct 787 ms 117372 KB Output is correct
38 Correct 748 ms 117488 KB Output is correct
39 Correct 734 ms 117416 KB Output is correct
40 Correct 730 ms 117604 KB Output is correct
41 Correct 182 ms 112960 KB Output is correct
42 Correct 82 ms 97768 KB Output is correct
43 Correct 385 ms 112888 KB Output is correct
44 Correct 326 ms 106664 KB Output is correct
45 Correct 78 ms 96156 KB Output is correct
46 Correct 59 ms 94660 KB Output is correct
47 Correct 156 ms 102948 KB Output is correct
48 Correct 119 ms 100212 KB Output is correct
49 Correct 64 ms 95664 KB Output is correct
50 Correct 56 ms 94572 KB Output is correct
51 Correct 109 ms 99660 KB Output is correct
52 Correct 246 ms 109020 KB Output is correct
53 Correct 207 ms 106820 KB Output is correct
54 Correct 242 ms 105536 KB Output is correct
55 Correct 88 ms 97004 KB Output is correct
56 Correct 232 ms 103660 KB Output is correct
57 Correct 133 ms 98260 KB Output is correct
58 Correct 109 ms 97976 KB Output is correct
59 Correct 67 ms 95176 KB Output is correct
60 Correct 335 ms 107588 KB Output is correct
61 Correct 80 ms 94416 KB Output is correct
62 Correct 163 ms 100748 KB Output is correct
63 Correct 103 ms 97764 KB Output is correct
64 Correct 246 ms 104160 KB Output is correct
65 Correct 201 ms 103048 KB Output is correct
66 Correct 98 ms 96696 KB Output is correct
67 Correct 190 ms 101036 KB Output is correct
68 Correct 131 ms 98928 KB Output is correct
69 Correct 224 ms 103052 KB Output is correct
70 Correct 79 ms 96220 KB Output is correct
71 Correct 2505 ms 217888 KB Output is correct
72 Correct 2374 ms 217964 KB Output is correct
73 Correct 2368 ms 217900 KB Output is correct
74 Correct 2518 ms 217844 KB Output is correct
75 Correct 2352 ms 217924 KB Output is correct
76 Correct 2450 ms 217948 KB Output is correct