CSES - APIO 2012 - Results
Submission details
Task:Guard
Sender:ollpu
Submission time:2019-03-16 16:49:28 +0200
Language:C++
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED10
#2ACCEPTED40
#3ACCEPTED50
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.02 s1, 2, 3details
#4ACCEPTED0.02 s1, 2, 3details
#5ACCEPTED0.01 s1, 2, 3details
#6ACCEPTED0.03 s1, 2, 3details
#7ACCEPTED0.02 s1, 2, 3details
#8ACCEPTED0.02 s1, 2, 3details
#9ACCEPTED0.01 s1, 2, 3details
#10ACCEPTED0.02 s1, 2, 3details
#11ACCEPTED0.02 s2, 3details
#12ACCEPTED0.01 s2, 3details
#13ACCEPTED0.02 s2, 3details
#14ACCEPTED0.02 s2, 3details
#15ACCEPTED0.02 s2, 3details
#16ACCEPTED0.03 s2, 3details
#17ACCEPTED0.02 s2, 3details
#18ACCEPTED0.01 s2, 3details
#19ACCEPTED0.02 s2, 3details
#20ACCEPTED0.02 s2, 3details
#21ACCEPTED0.01 s2, 3details
#22ACCEPTED0.02 s2, 3details
#23ACCEPTED0.02 s2, 3details
#24ACCEPTED0.01 s2, 3details
#25ACCEPTED0.02 s2, 3details
#26ACCEPTED0.07 s3details
#27ACCEPTED0.07 s3details
#28ACCEPTED0.07 s3details
#29ACCEPTED0.06 s3details
#30ACCEPTED0.07 s3details
#31ACCEPTED0.07 s3details
#32ACCEPTED0.06 s3details
#33ACCEPTED0.07 s3details
#34ACCEPTED0.05 s3details
#35ACCEPTED0.07 s3details
#36ACCEPTED0.08 s3details
#37ACCEPTED0.06 s3details
#38ACCEPTED0.06 s3details
#39ACCEPTED0.05 s3details
#40ACCEPTED0.07 s3details
#41ACCEPTED0.07 s3details
#42ACCEPTED0.05 s3details
#43ACCEPTED0.07 s3details

Code

#include <bits/stdc++.h>
#define F first
#define S second
using namespace std;
int fz[101010];
int nz[101010], pz[101010];
int mp[101010];
int cp[2][101010];
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int n, k, m;
  cin >> n >> k >> m;
  vector<pair<int, int>> r1;
  for (int i = 0; i < m; ++i) {
    int a, b, c;
    cin >> a >> b >> c;
    a--; b--;
    if (c) r1.push_back({a, b});
    else {
      fz[a]++;
      fz[b+1]--;
    }
  }
  int av = n;
  for (int i = 0; i < n; ++i) {
    if (i) fz[i] += fz[i-1];
    av -= !!fz[i];
  }
  if (av == k) {
    for (int i = 0; i < n; ++i) {
      if (!fz[i]) cout << i+1 << "\n";
    }
    return 0;
  }
  for (int i = 1; i < n; ++i) {
    if (fz[i]) pz[i] = pz[i-1];
    else pz[i] = i;
  }
  nz[n-1] = n-1;
  for (int i = n-2; i >= 0; --i) {
    if (fz[i]) nz[i] = nz[i+1];
    else nz[i] = i;
  }
  for (auto &p : r1) {
    p.F = nz[p.F];
    p.S = pz[p.S];
    if (p.F == p.S) mp[p.F] = 1;
  }
  sort(r1.begin(), r1.end());
  auto it = r1.begin();
  int np = 1e9;
  int rcnt = 0;
  for (int i = 0; i < n; ++i) {
    while (it != r1.end() && it->F == i) {
      np = min(np, it->S);
      it++;
    }
    if (np == i) {
      cp[0][i] = 1;
      np = 1e9;
      rcnt++;
    }
  }
  for (auto &p : r1) {
    swap(p.F, p.S);
  }
  sort(r1.begin(), r1.end(), greater<pair<int, int>>());
  it = r1.begin();
  np = -1;
  for (int i = n-1; i >= 0; --i) {
    while (it != r1.end() && it->F == i) {
      np = max(np, it->S);
      it++;
    }
    if (np == i) {
      cp[1][i] = 1;
      np = -1;
    }
  }
  bool f = 0;
  for (int i = 0; i < n; ++i) {
    if (mp[i] || (k == rcnt && cp[0][i] && cp[1][i])) {
      cout << i+1 << "\n";
      f = 1;
    }
  }
  if (!f) cout << -1 << endl;
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 9 100
1 9 1
11 12 1
3 19 1
10 20 1
...

correct output
-1

user output
-1

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 12 20
12 14 1
16 19 1
6 18 1
1 9 1
...

correct output
1
2
3
6
7
...

user output
1
2
3
6
7
...

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 6 100
14 18 1
17 19 1
3 16 1
17 19 1
...

correct output
3
14
15
16
18
...

user output
3
14
15
16
18
...

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 6 100
7 15 1
8 8 1
1 3 1
4 11 1
...

correct output
8
9
14
16
19

user output
8
9
14
16
19

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 7 100
17 18 1
4 4 1
2 7 1
10 18 1
...

correct output
1
2
4
6
8
...

user output
1
2
4
6
8
...

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 6 100
7 16 1
2 12 1
20 20 1
6 9 1
...

correct output
2
11
15
18
20

user output
2
11
15
18
20

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 8 100
5 18 1
14 20 1
18 18 1
1 13 1
...

correct output
1
4
13
14
18

user output
1
4
13
14
18

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 1 2
1 9 0
11 20 0

correct output
10

user output
10

Test 9

Group: 1, 2, 3

Verdict: ACCEPTED

input
20 20 1
7 12 1

correct output
1
2
3
4
5
...

user output
1
2
3
4
5
...

Test 10

Group: 1, 2, 3

Verdict: ACCEPTED

input
1 1 1
1 1 1

correct output
1

user output
1

Test 11

Group: 2, 3

Verdict: ACCEPTED

input
1000 604 1000
375 674 1
514 875 1
728 728 0
10 10 0
...

correct output
1
3
6
7
8
...

user output
1
3
6
7
8
...
Truncated

Test 12

Group: 2, 3

Verdict: ACCEPTED

input
1000 183 1000
521 531 1
245 255 1
455 460 1
200 468 1
...

correct output
19
22
33
57
77
...

user output
19
22
33
57
77
...
Truncated

Test 13

Group: 2, 3

Verdict: ACCEPTED

input
1000 361 1000
584 695 1
446 997 1
569 570 1
59 60 1
...

correct output
2
4
6
8
15
...

user output
2
4
6
8
15
...
Truncated

Test 14

Group: 2, 3

Verdict: ACCEPTED

input
1000 12 1000
543 543 0
63 420 1
340 340 0
288 288 0
...

correct output
57
385

user output
57
385

Test 15

Group: 2, 3

Verdict: ACCEPTED

input
1000 29 1000
740 952 1
602 606 1
660 660 0
472 472 0
...

correct output
774
783

user output
774
783

Test 16

Group: 2, 3

Verdict: ACCEPTED

input
1000 612 1000
253 993 1
498 842 1
191 191 0
958 958 0
...

correct output
1
3
4
5
8
...

user output
1
3
4
5
8
...
Truncated

Test 17

Group: 2, 3

Verdict: ACCEPTED

input
1000 192 1000
542 547 1
647 648 1
530 530 1
60 163 1
...

correct output
4
11
13
24
27
...

user output
4
11
13
24
27
...
Truncated

Test 18

Group: 2, 3

Verdict: ACCEPTED

input
1000 367 1000
21 919 1
204 999 1
492 493 1
38 39 1
...

correct output
2
4
6
8
10
...

user output
2
4
6
8
10
...
Truncated

Test 19

Group: 2, 3

Verdict: ACCEPTED

input
1000 9 1000
543 543 0
78 217 1
340 340 0
288 288 0
...

correct output
120
257
555
904

user output
120
257
555
904

Test 20

Group: 2, 3

Verdict: ACCEPTED

input
1000 28 1000
455 954 1
279 370 1
407 407 0
235 235 0
...

correct output
179
411
510
944

user output
179
411
510
944

Test 21

Group: 2, 3

Verdict: ACCEPTED

input
1000 25 1000
673 901 1
333 924 1
878 878 0
335 335 0
...

correct output
-1

user output
-1

Test 22

Group: 2, 3

Verdict: ACCEPTED

input
1000 183 1000
451 452 1
406 417 1
880 883 1
123 259 1
...

correct output
2
11
15
16
23
...

user output
2
11
15
16
23
...
Truncated

Test 23

Group: 2, 3

Verdict: ACCEPTED

input
1000 368 1000
142 917 1
73 808 1
528 529 1
37 38 1
...

correct output
2
4
6
8
13
...

user output
2
4
6
8
13
...
Truncated

Test 24

Group: 2, 3

Verdict: ACCEPTED

input
1000 9 1000
543 543 0
202 706 1
340 340 0
288 288 0
...

correct output
119

user output
119

Test 25

Group: 2, 3

Verdict: ACCEPTED

input
1000 30 1000
457 501 1
159 217 1
823 823 0
978 978 0
...

correct output
562

user output
562

Test 26

Group: 3

Verdict: ACCEPTED

input
100000 259 100000
70265 94761 1
512 62132 1
32170 32170 0
45057 45057 0
...

correct output
-1

user output
-1

Test 27

Group: 3

Verdict: ACCEPTED

input
100000 310 100000
36712 95986 1
6774 6774 0
41262 41262 0
42735 51183 1
...

correct output
55314
65758

user output
55314
65758

Test 28

Group: 3

Verdict: ACCEPTED

input
100000 308 100000
4723 17721 1
28590 28590 0
90553 90553 0
58222 69710 1
...

correct output
18048
45778
55102
79641

user output
18048
45778
55102
79641

Test 29

Group: 3

Verdict: ACCEPTED

input
100000 9281 100000
2146 2148 1
95934 95936 1
23741 79333 0
22669 76745 0
...

correct output
3
14
18
24
53
...

user output
3
14
18
24
53
...
Truncated

Test 30

Group: 3

Verdict: ACCEPTED

input
100000 18849 100000
97331 97332 1
6924 6932 1
55268 55277 1
3984 3985 1
...

correct output
1
10
12
16
20
...

user output
1
10
12
16
20
...
Truncated

Test 31

Group: 3

Verdict: ACCEPTED

input
100000 36955 100000
51007 51012 1
63071 63072 1
9317 61009 1
75457 75458 1
...

correct output
2
4
9
11
13
...

user output
2
4
9
11
13
...
Truncated

Test 32

Group: 3

Verdict: ACCEPTED

input
100000 2134 100000
37393 37393 0
66060 66060 0
29148 29319 1
59637 59637 0
...

correct output
777
796
815
1156
1250
...

user output
777
796
815
1156
1250
...
Truncated

Test 33

Group: 3

Verdict: ACCEPTED

input
100000 295 100000
74178 80289 1
78374 78374 0
73504 73504 0
63584 74642 1
...

correct output
52739
89458
89969

user output
52739
89458
89969

Test 34

Group: 3

Verdict: ACCEPTED

input
100000 20058 100000
13468 89073 0
12536 89053 0
95907 95910 1
14252 85912 0
...

correct output
1
2
3
4
5
...

user output
1
2
3
4
5
...
Truncated

Test 35

Group: 3

Verdict: ACCEPTED

input
100000 18802 100000
94192 94199 1
73216 73222 1
31268 31276 1
35786 35790 1
...

correct output
20
47
53
84
96
...

user output
20
47
53
84
96
...
Truncated

Test 36

Group: 3

Verdict: ACCEPTED

input
100000 37072 100000
51058 51059 1
63164 63165 1
15990 75136 1
75367 75368 1
...

correct output
6
8
10
12
14
...

user output
6
8
10
12
14
...
Truncated

Test 37

Group: 3

Verdict: ACCEPTED

input
100000 2123 100000
37393 37393 0
66060 66060 0
75929 75961 1
59637 59637 0
...

correct output
538
835
1295
1766
1884
...

user output
538
835
1295
1766
1884
...
Truncated

Test 38

Group: 3

Verdict: ACCEPTED

input
100000 297 100000
37623 88595 1
63978 63978 0
24490 24490 0
64997 74211 1
...

correct output
11217
45656
48264
59100

user output
11217
45656
48264
59100

Test 39

Group: 3

Verdict: ACCEPTED

input
100000 26782 100000
17681 86590 0
18919 85356 0
11236 11238 1
17421 80681 0
...

correct output
1
2
3
4
5
...

user output
1
2
3
4
5
...
Truncated

Test 40

Group: 3

Verdict: ACCEPTED

input
100000 18695 100000
39276 39281 1
99842 99852 1
71530 71533 1
85154 85159 1
...

correct output
1
8
35
41
53
...

user output
1
8
35
41
53
...
Truncated

Test 41

Group: 3

Verdict: ACCEPTED

input
100000 37091 100000
50717 50718 1
62957 62958 1
17480 66007 1
75147 75148 1
...

correct output
2
4
6
8
21
...

user output
2
4
6
8
21
...
Truncated

Test 42

Group: 3

Verdict: ACCEPTED

input
100000 2145 100000
37393 37393 0
66060 66060 0
58103 58121 1
59637 59637 0
...

correct output
8
48
369
797
1010
...

user output
8
48
369
797
1010
...
Truncated

Test 43

Group: 3

Verdict: ACCEPTED

input
100000 299 100000
41538 81745 1
9875 9875 0
1099 1099 0
32939 82591 1
...

correct output
23460
28661

user output
23460
28661