Submission #579498

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
579498	2022-06-19T09:30:36 Z	gun_gan	Strange Device (APIO19_strange_device)	C++17	100 / 100	808 ms	128516 KB

strange_device

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
 
int main()
{
	cin.tie(0) -> ios_base::sync_with_stdio(0);
 
	ll n, a, b;
	cin >> n >> a >> b;
 
	if(a > 1e18 / b)
	{
		ll sum = 0;
		for(int i = 0; i < n; i++)
		{
			ll l, r;
			cin >> l >> r;
			sum += r - l + 1;
		}

		cout << sum;
	}
	else
	{
		ll g = a * b / gcd(a, b + 1);

		map<ll, vector<ll>> M;
		for(int i = 0; i < n; i++)
		{
			ll l, r;
			cin >> l >> r;

			if(r - l + 1 >= g)
			{
				cout << g << '\n';
				return 0;
			}
			l %= g, r %= g;
			if(r < l)
			{
				M[0].push_back(r);
				M[l].push_back(g - 1);
			}
			else
			{
				M[l].push_back(r);
			}
		}
	 
		multiset<ll> S;
		vector<pair<ll,ll>> intervals;
	 
		ll begin = 2e18, last = 0;
		for(auto &[st, v] : M)
		{	
			
			while(!S.empty() && *S.begin() < st)
			{
				S.erase(S.begin());
			}
	 
			if(S.empty() && begin != 2e18)
			{
				intervals.push_back({begin, last});
				begin = 2e18;
				last = 0;
			}
	 
			begin = min(begin, st);
	 
			for(auto i : v)
			{
				S.insert(i);
				last = max(last, i);
			}
	 
		}
	 
		if(!S.empty() && begin != 2e18)
		{
			while(!S.empty())
			{
				last = max(last, *S.begin());
				S.erase(S.begin());
			}
	 
			intervals.push_back({begin, last});
		}
	 
		long long ans = 0;
		for(auto [l, r] : intervals) 
		{
			ans += r - l + 1;
		}
		cout << ans;
	}
 
	
 
}

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	2004 KB	Output is correct
3	Correct	8 ms	1984 KB	Output is correct
4	Correct	1 ms	320 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	316 KB	Output is correct
8	Correct	1 ms	316 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	316 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	8 ms	2036 KB	Output is correct
17	Correct	74 ms	13768 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	320 KB	Output is correct
2	Correct	0 ms	212 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	468 KB	Output is correct
3	Correct	1 ms	468 KB	Output is correct
4	Correct	1 ms	468 KB	Output is correct
5	Correct	560 ms	55372 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	721 ms	126756 KB	Output is correct
3	Correct	704 ms	126776 KB	Output is correct
4	Correct	726 ms	126752 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	721 ms	126756 KB	Output is correct
3	Correct	704 ms	126776 KB	Output is correct
4	Correct	726 ms	126752 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	710 ms	126792 KB	Output is correct
7	Correct	710 ms	126780 KB	Output is correct
8	Correct	680 ms	126800 KB	Output is correct
9	Correct	744 ms	126784 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	721 ms	126756 KB	Output is correct
3	Correct	704 ms	126776 KB	Output is correct
4	Correct	726 ms	126752 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	86 ms	13748 KB	Output is correct
7	Correct	72 ms	13804 KB	Output is correct
8	Correct	71 ms	13856 KB	Output is correct
9	Correct	67 ms	13780 KB	Output is correct
10	Correct	62 ms	13840 KB	Output is correct
11	Correct	72 ms	13732 KB	Output is correct
12	Correct	81 ms	13788 KB	Output is correct
13	Correct	68 ms	13796 KB	Output is correct
14	Correct	66 ms	13804 KB	Output is correct
15	Correct	77 ms	13752 KB	Output is correct
16	Correct	87 ms	13720 KB	Output is correct
17	Correct	87 ms	13820 KB	Output is correct
18	Correct	661 ms	126828 KB	Output is correct
19	Correct	709 ms	126936 KB	Output is correct
20	Correct	774 ms	126972 KB	Output is correct
21	Correct	82 ms	13896 KB	Output is correct
22	Correct	93 ms	13764 KB	Output is correct
23	Correct	188 ms	19448 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	94 ms	13804 KB	Output is correct
3	Correct	76 ms	13840 KB	Output is correct
4	Correct	695 ms	126852 KB	Output is correct
5	Correct	83 ms	13932 KB	Output is correct
6	Correct	75 ms	13804 KB	Output is correct
7	Correct	69 ms	13880 KB	Output is correct
8	Correct	70 ms	13728 KB	Output is correct
9	Correct	78 ms	13760 KB	Output is correct
10	Correct	68 ms	13824 KB	Output is correct
11	Correct	69 ms	13812 KB	Output is correct
12	Correct	70 ms	13744 KB	Output is correct
13	Correct	85 ms	13836 KB	Output is correct
14	Correct	773 ms	126788 KB	Output is correct
15	Correct	70 ms	13832 KB	Output is correct
16	Correct	664 ms	126740 KB	Output is correct
17	Correct	701 ms	126816 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	2004 KB	Output is correct
3	Correct	8 ms	1984 KB	Output is correct
4	Correct	1 ms	320 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	316 KB	Output is correct
8	Correct	1 ms	316 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	316 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	8 ms	2036 KB	Output is correct
17	Correct	74 ms	13768 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	320 KB	Output is correct
20	Correct	0 ms	212 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	468 KB	Output is correct
26	Correct	1 ms	468 KB	Output is correct
27	Correct	1 ms	468 KB	Output is correct
28	Correct	560 ms	55372 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	721 ms	126756 KB	Output is correct
31	Correct	704 ms	126776 KB	Output is correct
32	Correct	726 ms	126752 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	710 ms	126792 KB	Output is correct
35	Correct	710 ms	126780 KB	Output is correct
36	Correct	680 ms	126800 KB	Output is correct
37	Correct	744 ms	126784 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	86 ms	13748 KB	Output is correct
40	Correct	72 ms	13804 KB	Output is correct
41	Correct	71 ms	13856 KB	Output is correct
42	Correct	67 ms	13780 KB	Output is correct
43	Correct	62 ms	13840 KB	Output is correct
44	Correct	72 ms	13732 KB	Output is correct
45	Correct	81 ms	13788 KB	Output is correct
46	Correct	68 ms	13796 KB	Output is correct
47	Correct	66 ms	13804 KB	Output is correct
48	Correct	77 ms	13752 KB	Output is correct
49	Correct	87 ms	13720 KB	Output is correct
50	Correct	87 ms	13820 KB	Output is correct
51	Correct	661 ms	126828 KB	Output is correct
52	Correct	709 ms	126936 KB	Output is correct
53	Correct	774 ms	126972 KB	Output is correct
54	Correct	82 ms	13896 KB	Output is correct
55	Correct	93 ms	13764 KB	Output is correct
56	Correct	188 ms	19448 KB	Output is correct
57	Correct	1 ms	340 KB	Output is correct
58	Correct	94 ms	13804 KB	Output is correct
59	Correct	76 ms	13840 KB	Output is correct
60	Correct	695 ms	126852 KB	Output is correct
61	Correct	83 ms	13932 KB	Output is correct
62	Correct	75 ms	13804 KB	Output is correct
63	Correct	69 ms	13880 KB	Output is correct
64	Correct	70 ms	13728 KB	Output is correct
65	Correct	78 ms	13760 KB	Output is correct
66	Correct	68 ms	13824 KB	Output is correct
67	Correct	69 ms	13812 KB	Output is correct
68	Correct	70 ms	13744 KB	Output is correct
69	Correct	85 ms	13836 KB	Output is correct
70	Correct	773 ms	126788 KB	Output is correct
71	Correct	70 ms	13832 KB	Output is correct
72	Correct	664 ms	126740 KB	Output is correct
73	Correct	701 ms	126816 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	324 KB	Output is correct
78	Correct	1 ms	320 KB	Output is correct
79	Correct	8 ms	2132 KB	Output is correct
80	Correct	793 ms	128488 KB	Output is correct
81	Correct	761 ms	128516 KB	Output is correct
82	Correct	778 ms	128440 KB	Output is correct
83	Correct	801 ms	128396 KB	Output is correct
84	Correct	808 ms	128020 KB	Output is correct
85	Correct	738 ms	127636 KB	Output is correct
86	Correct	205 ms	19256 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #579498

Compilation message