oj.uz

Submission #469245

# Submission time Handle Problem Language Result Execution time Memory
469245 2021-08-31T08:42:55 Z AmirrezaM LIS (INOI20_lis) C++17
100 / 100
 2754 ms 81224 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")
#pragma GCC optimize ("O2")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("avx,avx2,fma")

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];

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

int c;
void read(int& ans){
  ans = 0;
  c = getchar();
  while(c >= 48 and c < 58){
	ans = 10 * ans + c - 48;
	c =  getchar();
  }
}

int main(){
  for(int i = 0 ; i < (s<<1) ; i++) segTree[i] = MAXN;

  read(n);
  for(int i = 0 ; i < n ; i++){
	int id;
	read(id) , read(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);
	printf("%d\n" , ans);
  }
}

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 9 ms 8796 KB Output is correct
4 Correct 9 ms 8780 KB Output is correct
5 Correct 20 ms 8740 KB Output is correct
6 Correct 14 ms 8744 KB Output is correct
7 Correct 13 ms 8724 KB Output is correct
8 Correct 12 ms 8744 KB Output is correct
9 Correct 13 ms 8732 KB Output is correct
10 Correct 11 ms 8780 KB Output is correct
11 Correct 12 ms 8780 KB Output is correct
12 Correct 11 ms 8780 KB Output is correct
13 Correct 13 ms 8780 KB Output is correct
14 Correct 15 ms 8760 KB Output is correct
15 Correct 11 ms 8780 KB Output is correct
16 Correct 13 ms 8700 KB Output is correct
17 Correct 14 ms 8728 KB Output is correct
18 Correct 13 ms 8692 KB Output is correct

Subtask #2
80.0 / 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 9 ms 8796 KB Output is correct
4 Correct 9 ms 8780 KB Output is correct
5 Correct 20 ms 8740 KB Output is correct
6 Correct 14 ms 8744 KB Output is correct
7 Correct 13 ms 8724 KB Output is correct
8 Correct 12 ms 8744 KB Output is correct
9 Correct 13 ms 8732 KB Output is correct
10 Correct 11 ms 8780 KB Output is correct
11 Correct 12 ms 8780 KB Output is correct
12 Correct 11 ms 8780 KB Output is correct
13 Correct 13 ms 8780 KB Output is correct
14 Correct 15 ms 8760 KB Output is correct
15 Correct 11 ms 8780 KB Output is correct
16 Correct 13 ms 8700 KB Output is correct
17 Correct 14 ms 8728 KB Output is correct
18 Correct 13 ms 8692 KB Output is correct
19 Correct 409 ms 21772 KB Output is correct
20 Correct 352 ms 21908 KB Output is correct
21 Correct 485 ms 21800 KB Output is correct
22 Correct 526 ms 22044 KB Output is correct
23 Correct 424 ms 22084 KB Output is correct
24 Correct 436 ms 21956 KB Output is correct
25 Correct 411 ms 22096 KB Output is correct
26 Correct 419 ms 21956 KB Output is correct
27 Correct 456 ms 21964 KB Output is correct
28 Correct 424 ms 21960 KB Output is correct
29 Correct 435 ms 21976 KB Output is correct
30 Correct 429 ms 22064 KB Output is correct
31 Correct 597 ms 22004 KB Output is correct
32 Correct 571 ms 21916 KB Output is correct
33 Correct 600 ms 21980 KB Output is correct
34 Correct 644 ms 21980 KB Output is correct
35 Correct 590 ms 22040 KB Output is correct
36 Correct 628 ms 21924 KB Output is correct
37 Correct 596 ms 22108 KB Output is correct
38 Correct 590 ms 22048 KB Output is correct
39 Correct 598 ms 21876 KB Output is correct
40 Correct 585 ms 22052 KB Output is correct
41 Correct 313 ms 19012 KB Output is correct
42 Correct 54 ms 10712 KB Output is correct
43 Correct 367 ms 18840 KB Output is correct
44 Correct 270 ms 15692 KB Output is correct
45 Correct 33 ms 9780 KB Output is correct
46 Correct 12 ms 8828 KB Output is correct
47 Correct 134 ms 13424 KB Output is correct
48 Correct 96 ms 12116 KB Output is correct
49 Correct 25 ms 9420 KB Output is correct
50 Correct 12 ms 8780 KB Output is correct
51 Correct 88 ms 11768 KB Output is correct
52 Correct 246 ms 17284 KB Output is correct
53 Correct 207 ms 15844 KB Output is correct
54 Correct 179 ms 15040 KB Output is correct
55 Correct 43 ms 10180 KB Output is correct
56 Correct 195 ms 13868 KB Output is correct
57 Correct 82 ms 10888 KB Output is correct
58 Correct 70 ms 10688 KB Output is correct
59 Correct 25 ms 9196 KB Output is correct
60 Correct 302 ms 16540 KB Output is correct
61 Correct 9 ms 8780 KB Output is correct
62 Correct 160 ms 12324 KB Output is correct
63 Correct 68 ms 10712 KB Output is correct
64 Correct 203 ms 14312 KB Output is correct
65 Correct 180 ms 13764 KB Output is correct
66 Correct 48 ms 10004 KB Output is correct
67 Correct 136 ms 12520 KB Output is correct
68 Correct 90 ms 11204 KB Output is correct
69 Correct 177 ms 13468 KB Output is correct
70 Correct 42 ms 9812 KB Output is correct
71 Correct 2642 ms 81108 KB Output is correct
72 Correct 2754 ms 80924 KB Output is correct
73 Correct 2673 ms 81152 KB Output is correct
74 Correct 2667 ms 81016 KB Output is correct
75 Correct 2721 ms 81024 KB Output is correct
76 Correct 2652 ms 81224 KB Output is correct