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Submission #120825

# Submission time Handle Problem Language Result Execution time Memory
120825 2019-06-25T14:44:52 Z nvmdava Strange Device (APIO19_strange_device) C++17
100 / 100
 998 ms 33452 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
using ll = long long;
const ll inf = 4e18;
 
ll mul(ll a, ll b) {
   if (a > (inf / b)) {
      return inf;
   } else {
      return a * b;
   }
}
 
int main() {
   ios_base::sync_with_stdio(false);
   int n;
   cin >> n;
   ll A, B;
   cin >> A >> B;
   A /= __gcd(A, B + 1);
   ll C = mul(A, B);
   vector<pair<ll, int>> go;
   for (int i = 0; i < n; ++i) {
      ll l, r;
      cin >> l >> r;
      if (r - l + 1 >= C) {
         go.emplace_back(0, 1);
         go.emplace_back(C, -1);
      } else if (l % C <= r % C) {
         l %= C, r %= C;
         go.emplace_back(l, 1);
         go.emplace_back(r + 1, -1);
      } else {
         l %= C, r %= C;
         go.emplace_back(l, 1);
         go.emplace_back(C, -1);
         go.emplace_back(0, 1);
         go.emplace_back(r + 1, -1);
      }
   }
   sort(go.begin(), go.end());
   ll ans = 0;
   int l = 0;
   int cnt = 0;
   while (l < go.size()) {
      int r = l;
      while (r < go.size() && go[r].first == go[l].first) {
         cnt += go[r++].second;
      }
      if (cnt) {
         ans += go[r].first - go[l].first;
      }
      l = r;
   }
   cout << ans << "\n";
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:47:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    while (l < go.size()) {
           ~~^~~~~~~~~~~
strange_device.cpp:49:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       while (r < go.size() && go[r].first == go[l].first) {
              ~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 10 ms 1016 KB Output is correct
3 Correct 11 ms 1000 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 408 KB Output is correct
10 Correct 2 ms 252 KB Output is correct
11 Correct 2 ms 380 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 10 ms 1016 KB Output is correct
17 Correct 88 ms 4596 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 504 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 3 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 544 ms 33260 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 774 ms 33344 KB Output is correct
3 Correct 810 ms 33300 KB Output is correct
4 Correct 779 ms 33352 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 774 ms 33344 KB Output is correct
3 Correct 810 ms 33300 KB Output is correct
4 Correct 779 ms 33352 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 799 ms 33296 KB Output is correct
7 Correct 774 ms 33300 KB Output is correct
8 Correct 812 ms 33344 KB Output is correct
9 Correct 928 ms 33268 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 774 ms 33344 KB Output is correct
3 Correct 810 ms 33300 KB Output is correct
4 Correct 779 ms 33352 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 77 ms 4584 KB Output is correct
7 Correct 80 ms 4584 KB Output is correct
8 Correct 77 ms 4604 KB Output is correct
9 Correct 80 ms 4596 KB Output is correct
10 Correct 64 ms 4584 KB Output is correct
11 Correct 77 ms 4684 KB Output is correct
12 Correct 85 ms 4628 KB Output is correct
13 Correct 86 ms 4580 KB Output is correct
14 Correct 75 ms 4584 KB Output is correct
15 Correct 91 ms 4556 KB Output is correct
16 Correct 112 ms 4580 KB Output is correct
17 Correct 80 ms 4536 KB Output is correct
18 Correct 803 ms 33336 KB Output is correct
19 Correct 757 ms 33316 KB Output is correct
20 Correct 923 ms 33344 KB Output is correct
21 Correct 88 ms 4708 KB Output is correct
22 Correct 70 ms 4584 KB Output is correct
23 Correct 225 ms 16932 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 84 ms 4560 KB Output is correct
3 Correct 95 ms 4712 KB Output is correct
4 Correct 994 ms 33420 KB Output is correct
5 Correct 86 ms 4588 KB Output is correct
6 Correct 85 ms 4608 KB Output is correct
7 Correct 85 ms 4584 KB Output is correct
8 Correct 91 ms 4556 KB Output is correct
9 Correct 95 ms 4556 KB Output is correct
10 Correct 90 ms 4556 KB Output is correct
11 Correct 88 ms 4584 KB Output is correct
12 Correct 78 ms 4584 KB Output is correct
13 Correct 89 ms 4556 KB Output is correct
14 Correct 904 ms 33344 KB Output is correct
15 Correct 89 ms 4584 KB Output is correct
16 Correct 746 ms 33452 KB Output is correct
17 Correct 791 ms 33328 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 10 ms 1016 KB Output is correct
3 Correct 11 ms 1000 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 380 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 408 KB Output is correct
10 Correct 2 ms 252 KB Output is correct
11 Correct 2 ms 380 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 10 ms 1016 KB Output is correct
17 Correct 88 ms 4596 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 504 KB Output is correct
21 Correct 2 ms 256 KB Output is correct
22 Correct 2 ms 376 KB Output is correct
23 Correct 2 ms 256 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 376 KB Output is correct
28 Correct 544 ms 33260 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 774 ms 33344 KB Output is correct
31 Correct 810 ms 33300 KB Output is correct
32 Correct 779 ms 33352 KB Output is correct
33 Correct 2 ms 376 KB Output is correct
34 Correct 799 ms 33296 KB Output is correct
35 Correct 774 ms 33300 KB Output is correct
36 Correct 812 ms 33344 KB Output is correct
37 Correct 928 ms 33268 KB Output is correct
38 Correct 2 ms 376 KB Output is correct
39 Correct 77 ms 4584 KB Output is correct
40 Correct 80 ms 4584 KB Output is correct
41 Correct 77 ms 4604 KB Output is correct
42 Correct 80 ms 4596 KB Output is correct
43 Correct 64 ms 4584 KB Output is correct
44 Correct 77 ms 4684 KB Output is correct
45 Correct 85 ms 4628 KB Output is correct
46 Correct 86 ms 4580 KB Output is correct
47 Correct 75 ms 4584 KB Output is correct
48 Correct 91 ms 4556 KB Output is correct
49 Correct 112 ms 4580 KB Output is correct
50 Correct 80 ms 4536 KB Output is correct
51 Correct 803 ms 33336 KB Output is correct
52 Correct 757 ms 33316 KB Output is correct
53 Correct 923 ms 33344 KB Output is correct
54 Correct 88 ms 4708 KB Output is correct
55 Correct 70 ms 4584 KB Output is correct
56 Correct 225 ms 16932 KB Output is correct
57 Correct 2 ms 256 KB Output is correct
58 Correct 84 ms 4560 KB Output is correct
59 Correct 95 ms 4712 KB Output is correct
60 Correct 994 ms 33420 KB Output is correct
61 Correct 86 ms 4588 KB Output is correct
62 Correct 85 ms 4608 KB Output is correct
63 Correct 85 ms 4584 KB Output is correct
64 Correct 91 ms 4556 KB Output is correct
65 Correct 95 ms 4556 KB Output is correct
66 Correct 90 ms 4556 KB Output is correct
67 Correct 88 ms 4584 KB Output is correct
68 Correct 78 ms 4584 KB Output is correct
69 Correct 89 ms 4556 KB Output is correct
70 Correct 904 ms 33344 KB Output is correct
71 Correct 89 ms 4584 KB Output is correct
72 Correct 746 ms 33452 KB Output is correct
73 Correct 791 ms 33328 KB Output is correct
74 Correct 2 ms 376 KB Output is correct
75 Correct 2 ms 376 KB Output is correct
76 Correct 2 ms 376 KB Output is correct
77 Correct 2 ms 376 KB Output is correct
78 Correct 2 ms 348 KB Output is correct
79 Correct 9 ms 1016 KB Output is correct
80 Correct 965 ms 33248 KB Output is correct
81 Correct 998 ms 33368 KB Output is correct
82 Correct 886 ms 33336 KB Output is correct
83 Correct 896 ms 33324 KB Output is correct
84 Correct 902 ms 33344 KB Output is correct
85 Correct 904 ms 33328 KB Output is correct
86 Correct 220 ms 16836 KB Output is correct
87 Correct 2 ms 376 KB Output is correct