CSES - Datatähti Open 2019 - Results
Submission details
Task:Sunset
Sender:cvele
Submission time:2019-01-18 15:06:33
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED16
#2ACCEPTED35
#3ACCEPTED49
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1details
#2ACCEPTED0.02 s1details
#3ACCEPTED0.03 s1details
#4ACCEPTED0.03 s1details
#5ACCEPTED0.04 s1details
#6ACCEPTED0.04 s1details
#7ACCEPTED0.03 s1details
#8ACCEPTED0.04 s1details
#9ACCEPTED0.03 s1details
#10ACCEPTED0.04 s1details
#11ACCEPTED0.04 s1details
#12ACCEPTED0.04 s1details
#13ACCEPTED0.03 s1details
#14ACCEPTED0.04 s1details
#15ACCEPTED0.04 s1details
#16ACCEPTED0.04 s1details
#17ACCEPTED0.03 s1details
#18ACCEPTED0.02 s2details
#19ACCEPTED0.44 s2details
#20ACCEPTED0.44 s2details
#21ACCEPTED0.45 s2details
#22ACCEPTED0.39 s2details
#23ACCEPTED0.38 s2details
#24ACCEPTED0.44 s2details
#25ACCEPTED0.38 s2details
#26ACCEPTED0.44 s2details
#27ACCEPTED0.43 s2details
#28ACCEPTED0.03 s2details
#29ACCEPTED0.37 s2details
#30ACCEPTED0.37 s2details
#31ACCEPTED0.38 s2details
#32ACCEPTED0.03 s3details
#33ACCEPTED0.47 s3details
#34ACCEPTED0.47 s3details
#35ACCEPTED0.48 s3details
#36ACCEPTED0.47 s3details
#37ACCEPTED0.42 s3details
#38ACCEPTED0.41 s3details
#39ACCEPTED0.48 s3details
#40ACCEPTED0.41 s3details
#41ACCEPTED0.46 s3details
#42ACCEPTED0.41 s3details
#43ACCEPTED0.47 s3details
#44ACCEPTED0.46 s3details
#45ACCEPTED0.39 s3details
#46ACCEPTED0.39 s3details
#47ACCEPTED0.40 s3details
#48ACCEPTED0.39 s3details
#49ACCEPTED0.38 s3details
#50ACCEPTED0.38 s3details
#51ACCEPTED0.38 s3details
#52ACCEPTED0.40 s3details
#53ACCEPTED0.39 s3details
#54ACCEPTED0.40 s3details

Code

#include <iostream>
#include <sstream>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <cctype>
#include <cstring>
#include <climits>
#include <iomanip>
#include <bitset>
#include <algorithm>
#include <vector>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <list>
#include <map>

using namespace std;

const int N = 200005;

int n, q;
int arr[N];
int ans[N];
int fenw[N];
pair <int, int> p[N];
vector <int> vec[N];
vector <pair<int,int>> e[N];
stack <pair<int,int>> s;

void update(int i, int val) {
  for (; i < N; i += i & (-i)) {
    fenw[i] += val;
  }
}

int query(int i) {
  int ans = 0;
  for (; i > 0; i -= i & (-i)) {
    ans += fenw[i];
  }
  return ans;
}

int query(int x, int y) {
  return (query(y) - (x > 1 ? query(x - 1) : 0));
}

int main() {
  cin >> n >> q;
  for (int i = 1; i <= n; i++) {
    cin >> arr[i];
  }
  for (int i = 1; i <= n; i++) {
    while (!s.empty() && s.top().first < arr[i]) s.pop();
    if (s.empty()) {
      p[i] = make_pair(1, i);
    } else {
      p[i] = make_pair(s.top().second + 1, i);
    }
    s.push({arr[i], i});
  }
  for (int i = 1; i <= n; i++) {
    int x = p[i].first, y = p[i].second;
    vec[x].push_back(y);
    vec[y].push_back(-1);
  }
  for (int i = 0; i < q; i++) {
    int x, y;
    cin >> x >> y;
    e[x].push_back({y, i});
  }
  for (int i = 1; i <= n; i++) {
    for (int x : vec[i]) {
      if (x != -1) {
        update(x, 1);
      }
    }
    for (auto it : e[i]) {
      ans[it.second] = query(i, it.first);
    }
    for (int x : vec[i]) {
      if (x == -1) {
        update(i, -1);
      }
    }
  }
  for (int i = 0; i < q; i++) {
    cout << ans[i] << endl;
  }
  return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
5 3
4 1 2 2 3
1 5
2 5
3 4

correct output
1
3
1

user output
1
3
1

Test 2

Group: 1

Verdict: ACCEPTED

input
1 1
1
1 1

correct output
1

user output
1

Test 3

Group: 1

Verdict: ACCEPTED

input
2 3
1 1000000000
1 1
2 2
1 2

correct output
1
1
2

user output
1
1
2

Test 4

Group: 1

Verdict: ACCEPTED

input
2 3
1000000000 1
1 1
2 2
1 2

correct output
1
1
1

user output
1
1
1

Test 5

Group: 1

Verdict: ACCEPTED

input
2000 2000
387547790 498212511 224378606 ...

correct output
14
10
10
3
7
...

user output
14
10
10
3
7
...

Test 6

Group: 1

Verdict: ACCEPTED

input
2000 2000
13604803 27447643 34139694 383...

correct output
198
43
38
58
50
...

user output
198
43
38
58
50
...

Test 7

Group: 1

Verdict: ACCEPTED

input
2000 2000
387547790 498212511 224378606 ...

correct output
1
1
1
1
1
...

user output
1
1
1
1
1
...

Test 8

Group: 1

Verdict: ACCEPTED

input
2000 2000
409666302 646936685 583741760 ...

correct output
8
9
12
8
11
...

user output
8
9
12
8
11
...

Test 9

Group: 1

Verdict: ACCEPTED

input
2000 2000
1000000000 1000000000 10000000...

correct output
1
1
1
1
1
...

user output
1
1
1
1
1
...

Test 10

Group: 1

Verdict: ACCEPTED

input
2000 2000
785263 793567 1573404 1750090 ...

correct output
2000
2000
2000
2000
2000
...

user output
2000
2000
2000
2000
2000
...

Test 11

Group: 1

Verdict: ACCEPTED

input
2000 2000
785263 793567 1573404 1750090 ...

correct output
1960
1947
1963
1942
1944
...

user output
1960
1947
1963
1942
1944
...

Test 12

Group: 1

Verdict: ACCEPTED

input
1999 2000
129087461 494922181 482953911 ...

correct output
10
6
6
7
7
...

user output
10
6
6
7
7
...

Test 13

Group: 1

Verdict: ACCEPTED

input
2000 2000
409666302 646936685 583741760 ...

correct output
8
7
6
7
7
...

user output
8
7
6
7
7
...

Test 14

Group: 1

Verdict: ACCEPTED

input
2000 2000
44989 1437234 1640005 1765235 ...

correct output
1233
1389
1026
150
796
...

user output
1233
1389
1026
150
796
...

Test 15

Group: 1

Verdict: ACCEPTED

input
2000 2000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
988
994
981
979
973
...

user output
988
994
981
979
973
...

Test 16

Group: 1

Verdict: ACCEPTED

input
2000 2000
1999 2000 1997 1998 1995 1996 ...

correct output
1
2
1
1
2
...

user output
1
2
1
1
2
...

Test 17

Group: 1

Verdict: ACCEPTED

input
2000 2000
2 1 4 3 5 4 5 2 3 1 2 1 4 3 5 ...

correct output
2
1
1
2
3
...

user output
2
1
1
2
3
...

Test 18

Group: 2

Verdict: ACCEPTED

input
1 1
1
1 1

correct output
1

user output
1

Test 19

Group: 2

Verdict: ACCEPTED

input
100000 200000
32 22 35 59 37 2 5 5 79 53 22 ...

correct output
4
9
6
5
4
...

user output
4
9
6
5
4
...

Test 20

Group: 2

Verdict: ACCEPTED

input
100000 200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
89
35
59
25
12
...

user output
89
35
59
25
12
...

Test 21

Group: 2

Verdict: ACCEPTED

input
100000 200000
32 22 35 59 37 2 5 5 79 53 22 ...

correct output
1
1
1
1
1
...

user output
1
1
1
1
1
...

Test 22

Group: 2

Verdict: ACCEPTED

input
100000 200000
72 58 92 12 32 29 55 87 6 49 5...

correct output
5
7
5
6
2
...

user output
5
7
5
6
2
...

Test 23

Group: 2

Verdict: ACCEPTED

input
100000 200000
100 100 100 100 100 100 100 10...

correct output
1
1
1
1
1
...

user output
1
1
1
1
1
...

Test 24

Group: 2

Verdict: ACCEPTED

input
100000 200000
72 58 92 12 32 29 55 87 6 49 5...

correct output
4
7
6
7
4
...

user output
4
7
6
7
4
...

Test 25

Group: 2

Verdict: ACCEPTED

input
100000 200000
72 58 92 12 32 29 55 87 6 49 5...

correct output
5
5
5
5
5
...

user output
5
5
5
5
5
...

Test 26

Group: 2

Verdict: ACCEPTED

input
99999 200000
20 47 84 90 88 63 39 16 74 19 ...

correct output
5
7
6
3
3
...

user output
5
7
6
3
3
...

Test 27

Group: 2

Verdict: ACCEPTED

input
100000 200000
72 58 92 12 32 29 55 87 6 49 5...

correct output
6
4
9
2
5
...

user output
6
4
9
2
5
...

Test 28

Group: 2

Verdict: ACCEPTED

input
5 1
4 1 5 6 9
1 3

correct output
2

user output
2

Test 29

Group: 2

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
44
4
27
46
29
...

user output
44
4
27
46
29
...

Test 30

Group: 2

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 5 4 5 2 3 1 2 1 4 3 5 ...

correct output
3
3
3
3
2
...

user output
3
3
3
3
2
...

Test 31

Group: 2

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
39
10
37
20
43
...

user output
39
10
37
20
43
...

Test 32

Group: 3

Verdict: ACCEPTED

input
1 1
1
1 1

correct output
1

user output
1

Test 33

Group: 3

Verdict: ACCEPTED

input
100000 200000
994198482 687493351 579440176 ...

correct output
8
6
8
10
5
...

user output
8
6
8
10
5
...

Test 34

Group: 3

Verdict: ACCEPTED

input
100000 200000
138644593 592364551 919805093 ...

correct output
10
11
13
7
12
...

user output
10
11
13
7
12
...

Test 35

Group: 3

Verdict: ACCEPTED

input
100000 200000
10770 195579 349462 442791 450...

correct output
2468
1986
2632
129
4010
...

user output
2468
1986
2632
129
4010
...

Test 36

Group: 3

Verdict: ACCEPTED

input
100000 200000
994198482 687493351 579440176 ...

correct output
1
2
1
2
1
...

user output
1
2
1
2
1
...

Test 37

Group: 3

Verdict: ACCEPTED

input
100000 200000
398809514 622635167 133376912 ...

correct output
15
13
16
11
17
...

user output
15
13
16
11
17
...

Test 38

Group: 3

Verdict: ACCEPTED

input
100000 200000
1000000000 1000000000 10000000...

correct output
1
1
1
1
1
...

user output
1
1
1
1
1
...

Test 39

Group: 3

Verdict: ACCEPTED

input
100000 200000
398809514 622635167 133376912 ...

correct output
10
16
7
18
10
...

user output
10
16
7
18
10
...

Test 40

Group: 3

Verdict: ACCEPTED

input
100000 200000
11465 15800 19042 19282 20348 ...

correct output
99542
99728
99391
99890
99716
...

user output
99542
99728
99391
99890
99716
...

Test 41

Group: 3

Verdict: ACCEPTED

input
99999 200000
587542096 890780320 258438313 ...

correct output
8
6
11
11
17
...

user output
8
6
11
11
17
...

Test 42

Group: 3

Verdict: ACCEPTED

input
100000 200000
11283 24634 28852 37453 37625 ...

correct output
100000
100000
100000
100000
100000
...

user output
100000
100000
100000
100000
100000
...

Test 43

Group: 3

Verdict: ACCEPTED

input
100000 200000
398809514 622635167 133376912 ...

correct output
13
13
10
15
15
...

user output
13
13
10
15
15
...

Test 44

Group: 3

Verdict: ACCEPTED

input
100000 200000
11465 15800 19042 19282 20348 ...

correct output
36112
6013
51073
8123
82052
...

user output
36112
6013
51073
8123
82052
...

Test 45

Group: 3

Verdict: ACCEPTED

input
100000 200000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
99407
99529
99590
99589
99679
...

user output
99407
99529
99590
99589
99679
...

Test 46

Group: 3

Verdict: ACCEPTED

input
100000 200000
100000 99999 99998 99997 99996...

correct output
1
1
1
1
1
...

user output
1
1
1
1
1
...

Test 47

Group: 3

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
49946
49703
49786
49864
49720
...

user output
49946
49703
49786
49864
49720
...

Test 48

Group: 3

Verdict: ACCEPTED

input
100000 200000
99999 100000 99997 99998 99995...

correct output
2
1
2
2
1
...

user output
2
1
2
2
1
...

Test 49

Group: 3

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 5 4 5 2 3 1 2 1 4 3 5 ...

correct output
3
3
3
3
2
...

user output
3
3
3
3
2
...

Test 50

Group: 3

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
19
23
2
21
4
...

user output
19
23
2
21
4
...

Test 51

Group: 3

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
112
237
49
141
57
...

user output
112
237
49
141
57
...

Test 52

Group: 3

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
2457
2199
2351
2450
2475
...

user output
2457
2199
2351
2450
2475
...

Test 53

Group: 3

Verdict: ACCEPTED

input
100000 200000
2 1 4 3 6 5 8 7 10 9 12 11 14 ...

correct output
24841
24973
24865
24823
24969
...

user output
24841
24973
24865
24823
24969
...

Test 54

Group: 3

Verdict: ACCEPTED

input
100000 200000
49999 50000 49997 49998 49995 ...

correct output
210
1
2
2
1
...

user output
210
1
2
2
1
...