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Submission #564187

# Submission time Handle Problem Language Result Execution time Memory
564187 2022-05-18T16:59:16 Z hoanghq2004 Strange Device (APIO19_strange_device) C++14
100 / 100
 624 ms 34172 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace __gnu_pbds;
using namespace std;

template <typename T>
using ordered_set = tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;

int main() {
    ios :: sync_with_stdio(0); cin.tie(0);
    int n;
    long long A, B;
    vector <pair <long long, int> > events;
    cin >> n >> A >> B;

    long long T;
    if (1.0L * A / __gcd(A, B + 1) * B > 2e18) T = 2e18;
    else T = A / __gcd(A, B + 1) * B;
    for (int i = 0; i < n; ++i) {
        long long L, R;
        cin >> L >> R;
        if (R - L + 1 >= T) {
            cout << T << '\n';
            exit(0);
        }
        L %= T, R %= T;
        if (L <= R) {
            events.push_back({L, 1});
            events.push_back({R + 1, -1});
        } else {
            events.push_back({L, 1});
            events.push_back({T, -1});
            events.push_back({0, 1});
            events.push_back({R + 1, -1});
        }
    }

    sort(events.begin(), events.end());
    int cur = 0;
    long long ans = 0;
    for (int i = 0; i + 1 < events.size(); ++i) {
        cur += events[i].second;
        if (cur != 0) ans += events[i + 1].first - events[i].first;
    }
    cout << ans;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:45:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |     for (int i = 0; i + 1 < events.size(); ++i) {
      |                     ~~~~~~^~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 940 KB Output is correct
3 Correct 5 ms 984 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 856 KB Output is correct
17 Correct 59 ms 4580 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 323 ms 33240 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 481 ms 33180 KB Output is correct
3 Correct 495 ms 33288 KB Output is correct
4 Correct 461 ms 33172 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 481 ms 33180 KB Output is correct
3 Correct 495 ms 33288 KB Output is correct
4 Correct 461 ms 33172 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 487 ms 33192 KB Output is correct
7 Correct 483 ms 33292 KB Output is correct
8 Correct 470 ms 33200 KB Output is correct
9 Correct 561 ms 33252 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 481 ms 33180 KB Output is correct
3 Correct 495 ms 33288 KB Output is correct
4 Correct 461 ms 33172 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 49 ms 4540 KB Output is correct
7 Correct 51 ms 4556 KB Output is correct
8 Correct 46 ms 4544 KB Output is correct
9 Correct 46 ms 4556 KB Output is correct
10 Correct 44 ms 4704 KB Output is correct
11 Correct 48 ms 4484 KB Output is correct
12 Correct 45 ms 4520 KB Output is correct
13 Correct 48 ms 4516 KB Output is correct
14 Correct 46 ms 4556 KB Output is correct
15 Correct 53 ms 4512 KB Output is correct
16 Correct 57 ms 4484 KB Output is correct
17 Correct 48 ms 4472 KB Output is correct
18 Correct 487 ms 33284 KB Output is correct
19 Correct 467 ms 33172 KB Output is correct
20 Correct 587 ms 33216 KB Output is correct
21 Correct 53 ms 4436 KB Output is correct
22 Correct 41 ms 4576 KB Output is correct
23 Correct 132 ms 16836 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 50 ms 4532 KB Output is correct
3 Correct 56 ms 4556 KB Output is correct
4 Correct 608 ms 33212 KB Output is correct
5 Correct 49 ms 4556 KB Output is correct
6 Correct 50 ms 4496 KB Output is correct
7 Correct 55 ms 4484 KB Output is correct
8 Correct 57 ms 4536 KB Output is correct
9 Correct 49 ms 4556 KB Output is correct
10 Correct 53 ms 4532 KB Output is correct
11 Correct 61 ms 4444 KB Output is correct
12 Correct 46 ms 4556 KB Output is correct
13 Correct 57 ms 4548 KB Output is correct
14 Correct 566 ms 33276 KB Output is correct
15 Correct 52 ms 4548 KB Output is correct
16 Correct 452 ms 33180 KB Output is correct
17 Correct 476 ms 33212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 5 ms 940 KB Output is correct
3 Correct 5 ms 984 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 5 ms 856 KB Output is correct
17 Correct 59 ms 4580 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 323 ms 33240 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 481 ms 33180 KB Output is correct
31 Correct 495 ms 33288 KB Output is correct
32 Correct 461 ms 33172 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 487 ms 33192 KB Output is correct
35 Correct 483 ms 33292 KB Output is correct
36 Correct 470 ms 33200 KB Output is correct
37 Correct 561 ms 33252 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 49 ms 4540 KB Output is correct
40 Correct 51 ms 4556 KB Output is correct
41 Correct 46 ms 4544 KB Output is correct
42 Correct 46 ms 4556 KB Output is correct
43 Correct 44 ms 4704 KB Output is correct
44 Correct 48 ms 4484 KB Output is correct
45 Correct 45 ms 4520 KB Output is correct
46 Correct 48 ms 4516 KB Output is correct
47 Correct 46 ms 4556 KB Output is correct
48 Correct 53 ms 4512 KB Output is correct
49 Correct 57 ms 4484 KB Output is correct
50 Correct 48 ms 4472 KB Output is correct
51 Correct 487 ms 33284 KB Output is correct
52 Correct 467 ms 33172 KB Output is correct
53 Correct 587 ms 33216 KB Output is correct
54 Correct 53 ms 4436 KB Output is correct
55 Correct 41 ms 4576 KB Output is correct
56 Correct 132 ms 16836 KB Output is correct
57 Correct 0 ms 212 KB Output is correct
58 Correct 50 ms 4532 KB Output is correct
59 Correct 56 ms 4556 KB Output is correct
60 Correct 608 ms 33212 KB Output is correct
61 Correct 49 ms 4556 KB Output is correct
62 Correct 50 ms 4496 KB Output is correct
63 Correct 55 ms 4484 KB Output is correct
64 Correct 57 ms 4536 KB Output is correct
65 Correct 49 ms 4556 KB Output is correct
66 Correct 53 ms 4532 KB Output is correct
67 Correct 61 ms 4444 KB Output is correct
68 Correct 46 ms 4556 KB Output is correct
69 Correct 57 ms 4548 KB Output is correct
70 Correct 566 ms 33276 KB Output is correct
71 Correct 52 ms 4548 KB Output is correct
72 Correct 452 ms 33180 KB Output is correct
73 Correct 476 ms 33212 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 1 ms 320 KB Output is correct
77 Correct 1 ms 212 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 5 ms 1232 KB Output is correct
80 Correct 605 ms 33932 KB Output is correct
81 Correct 624 ms 33944 KB Output is correct
82 Correct 573 ms 33928 KB Output is correct
83 Correct 562 ms 33940 KB Output is correct
84 Correct 559 ms 33920 KB Output is correct
85 Correct 558 ms 34172 KB Output is correct
86 Correct 144 ms 20644 KB Output is correct
87 Correct 1 ms 316 KB Output is correct