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Submission #497796

# Submission time Handle Problem Language Result Execution time Memory
497796 2021-12-23T20:45:55 Z MilosMilutinovic Strange Device (APIO19_strange_device) C++14
100 / 100
 643 ms 86224 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;

int n;
ll A, B;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout << fixed << setprecision(11);
	cerr << fixed << setprecision(6);

	cin >> n >> A >> B;
	A /= __gcd(A, B + 1);
	ll mod = 1e18 + 1;
	if (A <= (LLONG_MAX / 2) / B) mod = A * B;
	vector<pair<ll, ll>> vec;
	for (int i = 0; i < n; ++i) {
		ll l, r;
		cin >> l >> r;
		ll len = r - l + 1;
		if (len >= mod) {
			cout << mod << "\n";
			return 0;
		}
		l = l % mod;
		r = r % mod;
		if (l <= r) {
			vec.push_back({l, r});
		} else {
			vec.push_back({l, mod - 1});
			vec.push_back({0, r});
		}
	}

	vector<pair<ll, int>> Events;
	for (int i = 0; i < vec.size(); ++i) {
		Events.push_back({vec[i].first, 0});
		Events.push_back({vec[i].second, 1});
	}

	sort(Events.begin(), Events.end());

	int bal = 0;
	ll left = 0, tot = 0;
	for (auto ev : Events) {
		if (ev.second == 0) {
			bal++;
			if (bal == 1) left = ev.first;
		} else {
			bal--;
			if (bal == 0) tot += ev.first - left + 1;
		}
	}
	cout << tot << "\n";
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:40:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for (int i = 0; i < vec.size(); ++i) {
      |                  ~~^~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 308 KB Output is correct
2 Correct 5 ms 1464 KB Output is correct
3 Correct 5 ms 1484 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 312 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 312 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 312 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 1476 KB Output is correct
17 Correct 57 ms 9764 KB Output is correct
18 Correct 0 ms 204 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 316 KB Output is correct
5 Correct 0 ms 312 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 355 ms 74172 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 517 ms 85964 KB Output is correct
3 Correct 538 ms 86116 KB Output is correct
4 Correct 497 ms 86072 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 517 ms 85964 KB Output is correct
3 Correct 538 ms 86116 KB Output is correct
4 Correct 497 ms 86072 KB Output is correct
5 Correct 0 ms 312 KB Output is correct
6 Correct 523 ms 86196 KB Output is correct
7 Correct 499 ms 86092 KB Output is correct
8 Correct 506 ms 86004 KB Output is correct
9 Correct 589 ms 86024 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 517 ms 85964 KB Output is correct
3 Correct 538 ms 86116 KB Output is correct
4 Correct 497 ms 86072 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 48 ms 9792 KB Output is correct
7 Correct 52 ms 9796 KB Output is correct
8 Correct 52 ms 9832 KB Output is correct
9 Correct 49 ms 9768 KB Output is correct
10 Correct 48 ms 9804 KB Output is correct
11 Correct 49 ms 9712 KB Output is correct
12 Correct 47 ms 9788 KB Output is correct
13 Correct 51 ms 9788 KB Output is correct
14 Correct 51 ms 9708 KB Output is correct
15 Correct 53 ms 9804 KB Output is correct
16 Correct 53 ms 9752 KB Output is correct
17 Correct 52 ms 9796 KB Output is correct
18 Correct 517 ms 86220 KB Output is correct
19 Correct 507 ms 86056 KB Output is correct
20 Correct 602 ms 86128 KB Output is correct
21 Correct 58 ms 9828 KB Output is correct
22 Correct 44 ms 9724 KB Output is correct
23 Correct 147 ms 34956 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 52 ms 9772 KB Output is correct
3 Correct 53 ms 9788 KB Output is correct
4 Correct 621 ms 86160 KB Output is correct
5 Correct 54 ms 9796 KB Output is correct
6 Correct 54 ms 9792 KB Output is correct
7 Correct 54 ms 9736 KB Output is correct
8 Correct 56 ms 9736 KB Output is correct
9 Correct 64 ms 9820 KB Output is correct
10 Correct 56 ms 9760 KB Output is correct
11 Correct 52 ms 9816 KB Output is correct
12 Correct 48 ms 9728 KB Output is correct
13 Correct 56 ms 9796 KB Output is correct
14 Correct 587 ms 85900 KB Output is correct
15 Correct 56 ms 9724 KB Output is correct
16 Correct 495 ms 86224 KB Output is correct
17 Correct 510 ms 86008 KB Output is correct
18 Correct 0 ms 204 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 308 KB Output is correct
2 Correct 5 ms 1464 KB Output is correct
3 Correct 5 ms 1484 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 312 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 312 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 312 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 6 ms 1476 KB Output is correct
17 Correct 57 ms 9764 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 0 ms 204 KB Output is correct
22 Correct 0 ms 316 KB Output is correct
23 Correct 0 ms 312 KB Output is correct
24 Correct 0 ms 204 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 1 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 355 ms 74172 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 517 ms 85964 KB Output is correct
31 Correct 538 ms 86116 KB Output is correct
32 Correct 497 ms 86072 KB Output is correct
33 Correct 0 ms 312 KB Output is correct
34 Correct 523 ms 86196 KB Output is correct
35 Correct 499 ms 86092 KB Output is correct
36 Correct 506 ms 86004 KB Output is correct
37 Correct 589 ms 86024 KB Output is correct
38 Correct 0 ms 204 KB Output is correct
39 Correct 48 ms 9792 KB Output is correct
40 Correct 52 ms 9796 KB Output is correct
41 Correct 52 ms 9832 KB Output is correct
42 Correct 49 ms 9768 KB Output is correct
43 Correct 48 ms 9804 KB Output is correct
44 Correct 49 ms 9712 KB Output is correct
45 Correct 47 ms 9788 KB Output is correct
46 Correct 51 ms 9788 KB Output is correct
47 Correct 51 ms 9708 KB Output is correct
48 Correct 53 ms 9804 KB Output is correct
49 Correct 53 ms 9752 KB Output is correct
50 Correct 52 ms 9796 KB Output is correct
51 Correct 517 ms 86220 KB Output is correct
52 Correct 507 ms 86056 KB Output is correct
53 Correct 602 ms 86128 KB Output is correct
54 Correct 58 ms 9828 KB Output is correct
55 Correct 44 ms 9724 KB Output is correct
56 Correct 147 ms 34956 KB Output is correct
57 Correct 0 ms 204 KB Output is correct
58 Correct 52 ms 9772 KB Output is correct
59 Correct 53 ms 9788 KB Output is correct
60 Correct 621 ms 86160 KB Output is correct
61 Correct 54 ms 9796 KB Output is correct
62 Correct 54 ms 9792 KB Output is correct
63 Correct 54 ms 9736 KB Output is correct
64 Correct 56 ms 9736 KB Output is correct
65 Correct 64 ms 9820 KB Output is correct
66 Correct 56 ms 9760 KB Output is correct
67 Correct 52 ms 9816 KB Output is correct
68 Correct 48 ms 9728 KB Output is correct
69 Correct 56 ms 9796 KB Output is correct
70 Correct 587 ms 85900 KB Output is correct
71 Correct 56 ms 9724 KB Output is correct
72 Correct 495 ms 86224 KB Output is correct
73 Correct 510 ms 86008 KB Output is correct
74 Correct 0 ms 204 KB Output is correct
75 Correct 0 ms 204 KB Output is correct
76 Correct 0 ms 204 KB Output is correct
77 Correct 0 ms 204 KB Output is correct
78 Correct 0 ms 308 KB Output is correct
79 Correct 5 ms 1476 KB Output is correct
80 Correct 643 ms 86012 KB Output is correct
81 Correct 627 ms 86132 KB Output is correct
82 Correct 586 ms 86056 KB Output is correct
83 Correct 583 ms 86060 KB Output is correct
84 Correct 592 ms 85976 KB Output is correct
85 Correct 577 ms 86016 KB Output is correct
86 Correct 142 ms 34728 KB Output is correct
87 Correct 1 ms 332 KB Output is correct