Submission #316851

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
316851	2020-10-28T10:59:59 Z	sofapuden	Strange Device (APIO19_strange_device)	C++14	100 / 100	766 ms	36932 KB

strange_device

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	ll n, a, b; cin >> n >> a >> b;
	ll mod = __gcd(a,b+1);
	ll ans = 0;
	if((a/mod) <= LONG_LONG_MAX/b)mod=(a/mod)*b;
	else mod = (ll)2e18;
	vector<array<ll,2>> inter;
	for(int i = 0; i < n; ++i){
		ll l, r; cin >> l >> r;
		if(r-l+1 >= mod){
			cout << mod << "\n";
			return 0;
		}
		l %= mod, r %= mod;
		if(l<=r)inter.push_back({l,0ll}), inter.push_back({r,1ll});
		else inter.push_back({l,0ll}), inter.push_back({0ll,0ll}), inter.push_back({mod-1,1ll}), inter.push_back({r,1ll});
	}
	sort(inter.begin(),inter.end());
	ll cn = 0;
	for(int i = 0; i < (int)inter.size(); ++i){
		if(inter[i][1] == 0){
			cn++;
			if(cn == 1){
				if(i)ans+=inter[i][0]-inter[i-1][0]-1ll;
				else ans+=inter[i][0];
			}
		}
		else cn--;	
	}
	ans = 1+inter[(inter.size()-1)][0]-ans;
	cout << ans << "\n";
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	6 ms	1024 KB	Output is correct
3	Correct	7 ms	1024 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	1 ms	512 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	0 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	7 ms	1408 KB	Output is correct
17	Correct	73 ms	7272 KB	Output is correct
18	Correct	0 ms	384 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	508 ms	33348 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	643 ms	33280 KB	Output is correct
3	Correct	654 ms	33512 KB	Output is correct
4	Correct	622 ms	36928 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	643 ms	33280 KB	Output is correct
3	Correct	654 ms	33512 KB	Output is correct
4	Correct	622 ms	36928 KB	Output is correct
5	Correct	1 ms	288 KB	Output is correct
6	Correct	655 ms	36928 KB	Output is correct
7	Correct	627 ms	36928 KB	Output is correct
8	Correct	640 ms	36884 KB	Output is correct
9	Correct	734 ms	35672 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	643 ms	33280 KB	Output is correct
3	Correct	654 ms	33512 KB	Output is correct
4	Correct	622 ms	36928 KB	Output is correct
5	Correct	0 ms	384 KB	Output is correct
6	Correct	62 ms	7148 KB	Output is correct
7	Correct	65 ms	7284 KB	Output is correct
8	Correct	61 ms	7276 KB	Output is correct
9	Correct	63 ms	7276 KB	Output is correct
10	Correct	59 ms	7276 KB	Output is correct
11	Correct	72 ms	7280 KB	Output is correct
12	Correct	61 ms	7276 KB	Output is correct
13	Correct	69 ms	7280 KB	Output is correct
14	Correct	63 ms	7276 KB	Output is correct
15	Correct	71 ms	7276 KB	Output is correct
16	Correct	69 ms	7284 KB	Output is correct
17	Correct	62 ms	7284 KB	Output is correct
18	Correct	649 ms	36132 KB	Output is correct
19	Correct	619 ms	35904 KB	Output is correct
20	Correct	766 ms	35936 KB	Output is correct
21	Correct	71 ms	7276 KB	Output is correct
22	Correct	59 ms	7276 KB	Output is correct
23	Correct	213 ms	19588 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	256 KB	Output is correct
2	Correct	67 ms	4844 KB	Output is correct
3	Correct	68 ms	4860 KB	Output is correct
4	Correct	754 ms	33728 KB	Output is correct
5	Correct	68 ms	4968 KB	Output is correct
6	Correct	67 ms	4852 KB	Output is correct
7	Correct	67 ms	4844 KB	Output is correct
8	Correct	69 ms	4872 KB	Output is correct
9	Correct	66 ms	4980 KB	Output is correct
10	Correct	69 ms	4844 KB	Output is correct
11	Correct	65 ms	4840 KB	Output is correct
12	Correct	60 ms	4840 KB	Output is correct
13	Correct	68 ms	4844 KB	Output is correct
14	Correct	720 ms	34016 KB	Output is correct
15	Correct	70 ms	4844 KB	Output is correct
16	Correct	601 ms	33600 KB	Output is correct
17	Correct	629 ms	36932 KB	Output is correct
18	Correct	1 ms	384 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	6 ms	1024 KB	Output is correct
3	Correct	7 ms	1024 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 ms	384 KB	Output is correct
11	Correct	1 ms	512 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	0 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	7 ms	1408 KB	Output is correct
17	Correct	73 ms	7272 KB	Output is correct
18	Correct	0 ms	384 KB	Output is correct
19	Correct	1 ms	256 KB	Output is correct
20	Correct	0 ms	384 KB	Output is correct
21	Correct	0 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	1 ms	384 KB	Output is correct
24	Correct	1 ms	384 KB	Output is correct
25	Correct	1 ms	384 KB	Output is correct
26	Correct	1 ms	384 KB	Output is correct
27	Correct	1 ms	384 KB	Output is correct
28	Correct	508 ms	33348 KB	Output is correct
29	Correct	1 ms	384 KB	Output is correct
30	Correct	643 ms	33280 KB	Output is correct
31	Correct	654 ms	33512 KB	Output is correct
32	Correct	622 ms	36928 KB	Output is correct
33	Correct	1 ms	288 KB	Output is correct
34	Correct	655 ms	36928 KB	Output is correct
35	Correct	627 ms	36928 KB	Output is correct
36	Correct	640 ms	36884 KB	Output is correct
37	Correct	734 ms	35672 KB	Output is correct
38	Correct	0 ms	384 KB	Output is correct
39	Correct	62 ms	7148 KB	Output is correct
40	Correct	65 ms	7284 KB	Output is correct
41	Correct	61 ms	7276 KB	Output is correct
42	Correct	63 ms	7276 KB	Output is correct
43	Correct	59 ms	7276 KB	Output is correct
44	Correct	72 ms	7280 KB	Output is correct
45	Correct	61 ms	7276 KB	Output is correct
46	Correct	69 ms	7280 KB	Output is correct
47	Correct	63 ms	7276 KB	Output is correct
48	Correct	71 ms	7276 KB	Output is correct
49	Correct	69 ms	7284 KB	Output is correct
50	Correct	62 ms	7284 KB	Output is correct
51	Correct	649 ms	36132 KB	Output is correct
52	Correct	619 ms	35904 KB	Output is correct
53	Correct	766 ms	35936 KB	Output is correct
54	Correct	71 ms	7276 KB	Output is correct
55	Correct	59 ms	7276 KB	Output is correct
56	Correct	213 ms	19588 KB	Output is correct
57	Correct	1 ms	256 KB	Output is correct
58	Correct	67 ms	4844 KB	Output is correct
59	Correct	68 ms	4860 KB	Output is correct
60	Correct	754 ms	33728 KB	Output is correct
61	Correct	68 ms	4968 KB	Output is correct
62	Correct	67 ms	4852 KB	Output is correct
63	Correct	67 ms	4844 KB	Output is correct
64	Correct	69 ms	4872 KB	Output is correct
65	Correct	66 ms	4980 KB	Output is correct
66	Correct	69 ms	4844 KB	Output is correct
67	Correct	65 ms	4840 KB	Output is correct
68	Correct	60 ms	4840 KB	Output is correct
69	Correct	68 ms	4844 KB	Output is correct
70	Correct	720 ms	34016 KB	Output is correct
71	Correct	70 ms	4844 KB	Output is correct
72	Correct	601 ms	33600 KB	Output is correct
73	Correct	629 ms	36932 KB	Output is correct
74	Correct	1 ms	384 KB	Output is correct
75	Correct	1 ms	384 KB	Output is correct
76	Correct	1 ms	384 KB	Output is correct
77	Correct	1 ms	384 KB	Output is correct
78	Correct	1 ms	384 KB	Output is correct
79	Correct	6 ms	1408 KB	Output is correct
80	Correct	755 ms	35776 KB	Output is correct
81	Correct	760 ms	35908 KB	Output is correct
82	Correct	719 ms	33600 KB	Output is correct
83	Correct	721 ms	36672 KB	Output is correct
84	Correct	723 ms	35652 KB	Output is correct
85	Correct	723 ms	35524 KB	Output is correct
86	Correct	200 ms	19412 KB	Output is correct
87	Correct	1 ms	384 KB	Output is correct

Submission #316851

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