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답안 #513780

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
513780 2022-01-17T15:43:42 Z czhang2718 Financial Report (JOI21_financial) C++17
100 / 100
 1292 ms 68520 KB 
#include "bits/stdc++.h"
using namespace std;

const int N=300001;

int n, d;
int a[N];
int mx[4*N];

int get_max(int l, int r, int x, int lx, int rx){
  if(lx>=r || rx<=l) return 0;
  if(lx>=l && rx<=r) return mx[x];
  int m=(lx+rx)/2;
  return max(get_max(l, r, 2*x+1, lx, m), get_max(l, r, 2*x+2, m, rx));
}

int get_max(int l, int r){ return get_max(l, r, 0, 0, n+1); }

void upd(int i, int v, int x, int lx, int rx){
  if(rx-lx==1){
    mx[x]=v;
    return;
  }
  int m=(lx+rx)/2;
  if(i<m) upd(i, v, 2*x+1, lx, m);
  else upd(i, v, 2*x+2, m, rx);
  mx[x]=max(mx[2*x+1], mx[2*x+2]);
}

void upd(int i, int v){ upd(i, v, 0, 0, n+1); }

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

  cin >> n >> d; 
  set<int> s;
  map<int, int> mp;
  vector<vector<int>> ind(n+1);
  for(int i=1; i<=n; i++){
    cin >> a[i];
    s.insert(a[i]);
  }
  int cur=0;
  for(auto it=s.begin(); it!=s.end(); it++){
    mp[*it]=++cur;
  }
  for(int i=1; i<=n; i++){
    a[i]=mp[a[i]];
    ind[a[i]].push_back(i);
  }

  set<int> small, bad;
  for(int i=d; i<=n; i++) bad.insert(i);
  small.insert(0); small.insert(n+1);
  vector<int> dp(n+1);

  auto ins=[&](int i){
    int l=*--small.upper_bound(i);
    int r=*small.upper_bound(i);
    small.insert(i);
    if(r-l+1<d) return;
    for(int j=max(i, l+d-1); i>=j-d+1 && j<=r; j++){
      // cout << "erase " << j << "\n";
      bad.erase(j);
    }
  };

  int ans=0;
  for(int k=1; k<=n; k++){
    for(int i:ind[k]){
      ins(i);
      auto it=bad.upper_bound(i);
      int l=it==bad.begin()?0:*--it-d+1;
      dp[i]=get_max(l, i)+1;
      // cout << "dp[" << i << "] = " << dp[i] << "\n";
      // cout << "try [" << l << ", " << i << ")\n";
    }
    for(int i:ind[k]){
      upd(i, dp[i]);
      ans=max(ans, dp[i]);
    }
  }
  cout << ans;
}
// segment tree max, update point

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 320 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 328 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 208 KB Output is correct

Subtask #2
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 320 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 328 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 324 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 324 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct

Subtask #3
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 320 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 328 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 324 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 324 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 10 ms 1232 KB Output is correct
42 Correct 11 ms 1872 KB Output is correct
43 Correct 8 ms 1104 KB Output is correct
44 Correct 8 ms 1232 KB Output is correct
45 Correct 10 ms 1232 KB Output is correct
46 Correct 12 ms 1772 KB Output is correct
47 Correct 9 ms 1744 KB Output is correct
48 Correct 10 ms 1792 KB Output is correct
49 Correct 10 ms 1808 KB Output is correct
50 Correct 9 ms 1896 KB Output is correct
51 Correct 9 ms 1872 KB Output is correct
52 Correct 11 ms 1872 KB Output is correct
53 Correct 11 ms 1896 KB Output is correct
54 Correct 8 ms 1816 KB Output is correct
55 Correct 12 ms 1872 KB Output is correct
56 Correct 10 ms 1872 KB Output is correct
57 Correct 10 ms 1896 KB Output is correct
58 Correct 9 ms 1840 KB Output is correct
59 Correct 6 ms 1756 KB Output is correct
60 Correct 7 ms 1744 KB Output is correct
61 Correct 7 ms 1744 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 332 ms 31936 KB Output is correct
2 Correct 329 ms 31668 KB Output is correct
3 Correct 605 ms 32340 KB Output is correct
4 Correct 1267 ms 62980 KB Output is correct
5 Correct 900 ms 68500 KB Output is correct
6 Correct 1284 ms 68376 KB Output is correct
7 Correct 471 ms 67924 KB Output is correct
8 Correct 527 ms 68096 KB Output is correct
9 Correct 467 ms 68300 KB Output is correct
10 Correct 454 ms 68340 KB Output is correct
11 Correct 677 ms 68396 KB Output is correct
12 Correct 852 ms 68380 KB Output is correct
13 Correct 983 ms 68492 KB Output is correct
14 Correct 1244 ms 68380 KB Output is correct

Subtask #5
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 240 ms 32216 KB Output is correct
2 Correct 297 ms 32076 KB Output is correct
3 Correct 421 ms 33044 KB Output is correct
4 Correct 944 ms 68424 KB Output is correct
5 Correct 679 ms 68336 KB Output is correct
6 Correct 912 ms 68268 KB Output is correct
7 Correct 388 ms 68296 KB Output is correct
8 Correct 408 ms 68388 KB Output is correct
9 Correct 344 ms 67872 KB Output is correct
10 Correct 505 ms 68072 KB Output is correct
11 Correct 858 ms 68348 KB Output is correct
12 Correct 748 ms 68368 KB Output is correct

Subtask #6
35.0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 320 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 320 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 208 KB Output is correct
13 Correct 0 ms 208 KB Output is correct
14 Correct 0 ms 208 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 208 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 208 KB Output is correct
21 Correct 1 ms 328 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 1 ms 324 KB Output is correct
26 Correct 1 ms 208 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 324 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 324 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 10 ms 1232 KB Output is correct
42 Correct 11 ms 1872 KB Output is correct
43 Correct 8 ms 1104 KB Output is correct
44 Correct 8 ms 1232 KB Output is correct
45 Correct 10 ms 1232 KB Output is correct
46 Correct 12 ms 1772 KB Output is correct
47 Correct 9 ms 1744 KB Output is correct
48 Correct 10 ms 1792 KB Output is correct
49 Correct 10 ms 1808 KB Output is correct
50 Correct 9 ms 1896 KB Output is correct
51 Correct 9 ms 1872 KB Output is correct
52 Correct 11 ms 1872 KB Output is correct
53 Correct 11 ms 1896 KB Output is correct
54 Correct 8 ms 1816 KB Output is correct
55 Correct 12 ms 1872 KB Output is correct
56 Correct 10 ms 1872 KB Output is correct
57 Correct 10 ms 1896 KB Output is correct
58 Correct 9 ms 1840 KB Output is correct
59 Correct 6 ms 1756 KB Output is correct
60 Correct 7 ms 1744 KB Output is correct
61 Correct 7 ms 1744 KB Output is correct
62 Correct 332 ms 31936 KB Output is correct
63 Correct 329 ms 31668 KB Output is correct
64 Correct 605 ms 32340 KB Output is correct
65 Correct 1267 ms 62980 KB Output is correct
66 Correct 900 ms 68500 KB Output is correct
67 Correct 1284 ms 68376 KB Output is correct
68 Correct 471 ms 67924 KB Output is correct
69 Correct 527 ms 68096 KB Output is correct
70 Correct 467 ms 68300 KB Output is correct
71 Correct 454 ms 68340 KB Output is correct
72 Correct 677 ms 68396 KB Output is correct
73 Correct 852 ms 68380 KB Output is correct
74 Correct 983 ms 68492 KB Output is correct
75 Correct 1244 ms 68380 KB Output is correct
76 Correct 240 ms 32216 KB Output is correct
77 Correct 297 ms 32076 KB Output is correct
78 Correct 421 ms 33044 KB Output is correct
79 Correct 944 ms 68424 KB Output is correct
80 Correct 679 ms 68336 KB Output is correct
81 Correct 912 ms 68268 KB Output is correct
82 Correct 388 ms 68296 KB Output is correct
83 Correct 408 ms 68388 KB Output is correct
84 Correct 344 ms 67872 KB Output is correct
85 Correct 505 ms 68072 KB Output is correct
86 Correct 858 ms 68348 KB Output is correct
87 Correct 748 ms 68368 KB Output is correct
88 Correct 743 ms 32624 KB Output is correct
89 Correct 1292 ms 66964 KB Output is correct
90 Correct 850 ms 37816 KB Output is correct
91 Correct 1006 ms 68400 KB Output is correct
92 Correct 385 ms 32456 KB Output is correct
93 Correct 543 ms 33084 KB Output is correct
94 Correct 767 ms 57072 KB Output is correct
95 Correct 987 ms 68296 KB Output is correct
96 Correct 1051 ms 68376 KB Output is correct
97 Correct 1083 ms 68476 KB Output is correct
98 Correct 1002 ms 68408 KB Output is correct
99 Correct 965 ms 68340 KB Output is correct
100 Correct 939 ms 68340 KB Output is correct
101 Correct 443 ms 68440 KB Output is correct
102 Correct 457 ms 68300 KB Output is correct
103 Correct 489 ms 68380 KB Output is correct
104 Correct 523 ms 68376 KB Output is correct
105 Correct 613 ms 68320 KB Output is correct
106 Correct 571 ms 68420 KB Output is correct
107 Correct 628 ms 68328 KB Output is correct
108 Correct 849 ms 68440 KB Output is correct
109 Correct 783 ms 68424 KB Output is correct
110 Correct 964 ms 68520 KB Output is correct
111 Correct 977 ms 68404 KB Output is correct
112 Correct 650 ms 68336 KB Output is correct
113 Correct 805 ms 68292 KB Output is correct
114 Correct 908 ms 68500 KB Output is correct
115 Correct 394 ms 68344 KB Output is correct
116 Correct 402 ms 68388 KB Output is correct
117 Correct 438 ms 68276 KB Output is correct
118 Correct 454 ms 68300 KB Output is correct
119 Correct 545 ms 68276 KB Output is correct
120 Correct 563 ms 68296 KB Output is correct