oj.uz

Submission #469238

# Submission time Handle Problem Language Result Execution time Memory
469238 2021-08-31T08:30:04 Z AmirrezaM LIS (INOI20_lis) C++17
20 / 100
 4000 ms 74104 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

#define vc vector
#define pb push_back
#define fr first
#define sc second

#define Heh ios::sync_with_stdio(false) , cin.tie(0)

#pragma GCC optimize ("Ofast" , "O2" , "unroll-loops")

const int MAXN = 1e6 + 16 , s = 1 << 20 , sq = 1.5e3 + 15.3;

int n , b[MAXN] , a[MAXN] , it[MAXN] , lis[MAXN] , ans;
set<int> lit[sq];
set<int>::iterator iter;

int segTree[s<<1] , lazy[s<<1];

void shift(int v){
  segTree[v<<1] += lazy[v];
  segTree[(v<<1)^1] += lazy[v];
  lazy[v<<1] += lazy[v];
  lazy[(v<<1)^1] += lazy[v];
  lazy[v] = 0;
}
int get(int v , int tl , int tr){
  if(tl == tr) return tl;
  shift(v);
  int mid = (tl + tr) >> 1;
  if(segTree[(v<<1)^1] == 0) return get((v<<1)^1 , mid+1 , tr);
  return get((v<<1) , tl , mid);
}
void upd(int v , int tl , int tr , int l , int r , int x){
  if(l > tr or r < tl) return;
  if(l <= tl and r >= tr){
	segTree[v] += x;
	lazy[v] += x;
	return;
  }
  shift(v);
  int mid = (tl + tr) >> 1;
  upd(v<<1 , tl , mid , l , r , x);
  upd((v<<1)^1 , mid+1 , tr , l , r , x);
  segTree[v] = min(segTree[v<<1] , segTree[(v<<1)^1]);
}

void upd(int id){
  while(1){
    iter = lit[lis[id]].lower_bound(id);
	if(iter != lit[lis[id]].end() and a[*iter] > a[id]){
	  int jd = *iter;
	  lit[lis[id]].erase(iter);
	  lis[jd]++;
	  upd(jd);
	}
	else break;
  }
  lit[lis[id]].insert(id);
  ans = max(ans , lis[id]);
}

int main(){
  Heh;
  for(int i = 0 ; i < (s<<1) ; i++) segTree[i] = MAXN;
  
  cin >> n;
  for(int i = 0 ; i < n ; i++){
	int id;
	cin >> id >> b[i];
	id--;
	segTree[s+i] = i-id;
  }
  for(int i = s-1 ; i >= 1 ; i--){
	segTree[i] = min(segTree[i<<1] , segTree[(i<<1)^1]);
  }

  for(int i = 0 ; i < n ; i++){
	int id = get(1 , 0 , s-1);
	a[n-i-1] = b[id];
	it[id] = n-i-1;
	upd(1 , 0 , s-1 , id , n-1 , -1);
	upd(1 , 0 , s-1 , id , id , MAXN);
  }
  
  for(int i = 0 ; i < n ; i++){
	int id = it[i];
	lis[id] = 1;
	while(1){
	  iter = lit[lis[id]].lower_bound(id);
	  if(iter != lit[lis[id]].begin() and a[*(--iter)] < a[id]) lis[id]++;
	  else break;
	}
	upd(id);
	cout << ans << endl;
  }
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8652 KB Output is correct
2 Correct 6 ms 8652 KB Output is correct
3 Correct 14 ms 8748 KB Output is correct
4 Correct 13 ms 8748 KB Output is correct
5 Correct 23 ms 8732 KB Output is correct
6 Correct 20 ms 8740 KB Output is correct
7 Correct 20 ms 8780 KB Output is correct
8 Correct 19 ms 8780 KB Output is correct
9 Correct 18 ms 8780 KB Output is correct
10 Correct 15 ms 8712 KB Output is correct
11 Correct 17 ms 8752 KB Output is correct
12 Correct 16 ms 8716 KB Output is correct
13 Correct 17 ms 8824 KB Output is correct
14 Correct 18 ms 8820 KB Output is correct
15 Correct 16 ms 8780 KB Output is correct
16 Correct 17 ms 8756 KB Output is correct
17 Correct 17 ms 8780 KB Output is correct
18 Correct 16 ms 8780 KB Output is correct

Subtask #2
0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8652 KB Output is correct
2 Correct 6 ms 8652 KB Output is correct
3 Correct 14 ms 8748 KB Output is correct
4 Correct 13 ms 8748 KB Output is correct
5 Correct 23 ms 8732 KB Output is correct
6 Correct 20 ms 8740 KB Output is correct
7 Correct 20 ms 8780 KB Output is correct
8 Correct 19 ms 8780 KB Output is correct
9 Correct 18 ms 8780 KB Output is correct
10 Correct 15 ms 8712 KB Output is correct
11 Correct 17 ms 8752 KB Output is correct
12 Correct 16 ms 8716 KB Output is correct
13 Correct 17 ms 8824 KB Output is correct
14 Correct 18 ms 8820 KB Output is correct
15 Correct 16 ms 8780 KB Output is correct
16 Correct 17 ms 8756 KB Output is correct
17 Correct 17 ms 8780 KB Output is correct
18 Correct 16 ms 8780 KB Output is correct
19 Correct 761 ms 21860 KB Output is correct
20 Correct 715 ms 21960 KB Output is correct
21 Correct 807 ms 21828 KB Output is correct
22 Correct 878 ms 21920 KB Output is correct
23 Correct 809 ms 21996 KB Output is correct
24 Correct 831 ms 21988 KB Output is correct
25 Correct 804 ms 22168 KB Output is correct
26 Correct 817 ms 21912 KB Output is correct
27 Correct 807 ms 22044 KB Output is correct
28 Correct 862 ms 21920 KB Output is correct
29 Correct 813 ms 21920 KB Output is correct
30 Correct 782 ms 22028 KB Output is correct
31 Correct 988 ms 22056 KB Output is correct
32 Correct 957 ms 22012 KB Output is correct
33 Correct 979 ms 22076 KB Output is correct
34 Correct 1066 ms 22156 KB Output is correct
35 Correct 1020 ms 22284 KB Output is correct
36 Correct 960 ms 22064 KB Output is correct
37 Correct 998 ms 22008 KB Output is correct
38 Correct 961 ms 22004 KB Output is correct
39 Correct 951 ms 21932 KB Output is correct
40 Correct 1033 ms 22040 KB Output is correct
41 Correct 589 ms 19168 KB Output is correct
42 Correct 111 ms 10628 KB Output is correct
43 Correct 630 ms 18828 KB Output is correct
44 Correct 458 ms 15764 KB Output is correct
45 Correct 63 ms 9716 KB Output is correct
46 Correct 18 ms 8888 KB Output is correct
47 Correct 265 ms 13540 KB Output is correct
48 Correct 192 ms 12120 KB Output is correct
49 Correct 47 ms 9400 KB Output is correct
50 Correct 18 ms 8860 KB Output is correct
51 Correct 174 ms 11744 KB Output is correct
52 Correct 500 ms 17404 KB Output is correct
53 Correct 444 ms 15900 KB Output is correct
54 Correct 359 ms 15024 KB Output is correct
55 Correct 88 ms 10180 KB Output is correct
56 Correct 347 ms 13892 KB Output is correct
57 Correct 147 ms 10992 KB Output is correct
58 Correct 127 ms 10644 KB Output is correct
59 Correct 38 ms 9164 KB Output is correct
60 Correct 532 ms 16344 KB Output is correct
61 Correct 13 ms 8780 KB Output is correct
62 Correct 236 ms 12440 KB Output is correct
63 Correct 123 ms 10720 KB Output is correct
64 Correct 387 ms 14200 KB Output is correct
65 Correct 315 ms 13584 KB Output is correct
66 Correct 88 ms 9920 KB Output is correct
67 Correct 247 ms 12676 KB Output is correct
68 Correct 160 ms 11288 KB Output is correct
69 Correct 309 ms 13508 KB Output is correct
70 Correct 89 ms 9720 KB Output is correct
71 Execution timed out 4065 ms 74104 KB Time limit exceeded
72 Halted 0 ms 0 KB -