Submission #721884

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
721884	2023-04-11T08:18:28 Z	LittleCube	Strange Device (APIO19_strange_device)	C++17	100 / 100	776 ms	63460 KB

strange_device

#pragma GCC optimize("Ofast,unroll-loops")
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
using namespace std;

ll N, A, B;
map<ll, int> mp;

ll safe_mul(ll a, ll b)
{
	if(b >= 2e18 / a)
		return 2e18;
	return a * b;
}

signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);
	cin >> N >> A >> B;
	ll g = __gcd(A, B + 1);
	A /= g;
	A = safe_mul(A, B);
	for (int i = 1; i <= N; i++)
	{
		ll l, r;
		cin >> l >> r;
		if(r - l + 1 >= A)
		{
			cout << A << '\n';
			return 0;
		}
		l %= A, r %= A;
		if(r < l)
		{
			mp[l]++;
			mp[A]--;
			mp[0]++;
			mp[r + 1]--;
		}
		else
		{
			mp[l]++;
			mp[r + 1]--;
		}
	}
	ll last = 0, cnt = 0, ans = 0;
	for (auto [p, v] : mp)
	{
		if(cnt > 0)
			ans += p - last;
		last = p;
		cnt += v;
	}
	cout << ans << '\n';
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	8 ms	1096 KB	Output is correct
3	Correct	7 ms	984 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	216 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct
11	Correct	1 ms	320 KB	Output is correct
12	Correct	1 ms	316 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	316 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	7 ms	1056 KB	Output is correct
17	Correct	74 ms	6736 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	320 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	324 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	249 ms	328 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	641 ms	63364 KB	Output is correct
3	Correct	674 ms	63460 KB	Output is correct
4	Correct	694 ms	63200 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	641 ms	63364 KB	Output is correct
3	Correct	674 ms	63460 KB	Output is correct
4	Correct	694 ms	63200 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	653 ms	63144 KB	Output is correct
7	Correct	662 ms	63224 KB	Output is correct
8	Correct	646 ms	63164 KB	Output is correct
9	Correct	697 ms	63000 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	641 ms	63364 KB	Output is correct
3	Correct	674 ms	63460 KB	Output is correct
4	Correct	694 ms	63200 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	55 ms	6736 KB	Output is correct
7	Correct	60 ms	6708 KB	Output is correct
8	Correct	58 ms	6692 KB	Output is correct
9	Correct	64 ms	6640 KB	Output is correct
10	Correct	54 ms	6648 KB	Output is correct
11	Correct	54 ms	6704 KB	Output is correct
12	Correct	60 ms	6616 KB	Output is correct
13	Correct	64 ms	6668 KB	Output is correct
14	Correct	58 ms	6696 KB	Output is correct
15	Correct	69 ms	6604 KB	Output is correct
16	Correct	70 ms	6644 KB	Output is correct
17	Correct	72 ms	6648 KB	Output is correct
18	Correct	637 ms	63188 KB	Output is correct
19	Correct	664 ms	63244 KB	Output is correct
20	Correct	751 ms	63200 KB	Output is correct
21	Correct	67 ms	6660 KB	Output is correct
22	Correct	72 ms	6720 KB	Output is correct
23	Correct	112 ms	444 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	316 KB	Output is correct
2	Correct	72 ms	6984 KB	Output is correct
3	Correct	79 ms	6856 KB	Output is correct
4	Correct	705 ms	63060 KB	Output is correct
5	Correct	70 ms	6892 KB	Output is correct
6	Correct	70 ms	6832 KB	Output is correct
7	Correct	72 ms	6792 KB	Output is correct
8	Correct	72 ms	6796 KB	Output is correct
9	Correct	72 ms	6920 KB	Output is correct
10	Correct	62 ms	7016 KB	Output is correct
11	Correct	68 ms	6844 KB	Output is correct
12	Correct	73 ms	6808 KB	Output is correct
13	Correct	66 ms	6816 KB	Output is correct
14	Correct	742 ms	62996 KB	Output is correct
15	Correct	81 ms	6832 KB	Output is correct
16	Correct	660 ms	63108 KB	Output is correct
17	Correct	622 ms	63256 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	8 ms	1096 KB	Output is correct
3	Correct	7 ms	984 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	216 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct
11	Correct	1 ms	320 KB	Output is correct
12	Correct	1 ms	316 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	316 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	7 ms	1056 KB	Output is correct
17	Correct	74 ms	6736 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	320 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	324 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	249 ms	328 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	641 ms	63364 KB	Output is correct
31	Correct	674 ms	63460 KB	Output is correct
32	Correct	694 ms	63200 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	653 ms	63144 KB	Output is correct
35	Correct	662 ms	63224 KB	Output is correct
36	Correct	646 ms	63164 KB	Output is correct
37	Correct	697 ms	63000 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	55 ms	6736 KB	Output is correct
40	Correct	60 ms	6708 KB	Output is correct
41	Correct	58 ms	6692 KB	Output is correct
42	Correct	64 ms	6640 KB	Output is correct
43	Correct	54 ms	6648 KB	Output is correct
44	Correct	54 ms	6704 KB	Output is correct
45	Correct	60 ms	6616 KB	Output is correct
46	Correct	64 ms	6668 KB	Output is correct
47	Correct	58 ms	6696 KB	Output is correct
48	Correct	69 ms	6604 KB	Output is correct
49	Correct	70 ms	6644 KB	Output is correct
50	Correct	72 ms	6648 KB	Output is correct
51	Correct	637 ms	63188 KB	Output is correct
52	Correct	664 ms	63244 KB	Output is correct
53	Correct	751 ms	63200 KB	Output is correct
54	Correct	67 ms	6660 KB	Output is correct
55	Correct	72 ms	6720 KB	Output is correct
56	Correct	112 ms	444 KB	Output is correct
57	Correct	1 ms	316 KB	Output is correct
58	Correct	72 ms	6984 KB	Output is correct
59	Correct	79 ms	6856 KB	Output is correct
60	Correct	705 ms	63060 KB	Output is correct
61	Correct	70 ms	6892 KB	Output is correct
62	Correct	70 ms	6832 KB	Output is correct
63	Correct	72 ms	6792 KB	Output is correct
64	Correct	72 ms	6796 KB	Output is correct
65	Correct	72 ms	6920 KB	Output is correct
66	Correct	62 ms	7016 KB	Output is correct
67	Correct	68 ms	6844 KB	Output is correct
68	Correct	73 ms	6808 KB	Output is correct
69	Correct	66 ms	6816 KB	Output is correct
70	Correct	742 ms	62996 KB	Output is correct
71	Correct	81 ms	6832 KB	Output is correct
72	Correct	660 ms	63108 KB	Output is correct
73	Correct	622 ms	63256 KB	Output is correct
74	Correct	1 ms	212 KB	Output is correct
75	Correct	1 ms	212 KB	Output is correct
76	Correct	1 ms	212 KB	Output is correct
77	Correct	1 ms	212 KB	Output is correct
78	Correct	1 ms	212 KB	Output is correct
79	Correct	7 ms	932 KB	Output is correct
80	Correct	681 ms	63268 KB	Output is correct
81	Correct	675 ms	63172 KB	Output is correct
82	Correct	776 ms	63088 KB	Output is correct
83	Correct	739 ms	63100 KB	Output is correct
84	Correct	719 ms	63016 KB	Output is correct
85	Correct	679 ms	62932 KB	Output is correct
86	Correct	103 ms	296 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #721884

Compilation message