Submission #721461

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
721461	2023-04-11T02:00:43 Z	alvingogo	Strange Device (APIO19_strange_device)	C++14	100 / 100	578 ms	53288 KB

strange_device

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#define AquA cin.tie(0);ios_base::sync_with_stdio(0);
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

long long inf=2e18;
long long mul(long long x,long long y){	
	long long sum=inf;
	if(sum/x>=y-2){
		sum=min(sum,x*y);
	}
	return sum;
}
int main(){
    AquA;
	long long n,a,b;
	cin >> n >> a >> b;
	long long u=__gcd(a,(b+1));
	a/=u;
	long long sum=mul(a,b);
	vector<pair<long long,long long> > x;
	for(int i=0;i<n;i++){
		long long l,r;
		cin >> l >> r;
		if(r/sum>l/sum+1){
			cout << sum << "\n";
			return 0;
		}
		if(r/sum==l/sum){
			x.push_back({l%sum,r%sum});
		}
		else{
			x.push_back({l%sum,sum-1});
			x.push_back({0%sum,r%sum});
		}
	}
	sort(x.begin(),x.end());
	long long ans=0;
	long long nw=0;
	for(auto h:x){
		nw=max(nw,h.fs);
		if(h.sc>=nw){
			ans+=(h.sc-nw+1);
		}
		nw=max(nw,h.sc+1);
	}
	cout << ans << "\n";
    return 0;
}

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	724 KB	Output is correct
3	Correct	4 ms	600 KB	Output is correct
4	Correct	0 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	312 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	4 ms	984 KB	Output is correct
17	Correct	45 ms	5696 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	0 ms	212 KB	Output is correct
2	Correct	1 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	281 ms	16768 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	404 ms	16936 KB	Output is correct
3	Correct	375 ms	16848 KB	Output is correct
4	Correct	393 ms	45100 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	404 ms	16936 KB	Output is correct
3	Correct	375 ms	16848 KB	Output is correct
4	Correct	393 ms	45100 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	410 ms	44928 KB	Output is correct
7	Correct	397 ms	45108 KB	Output is correct
8	Correct	405 ms	45080 KB	Output is correct
9	Correct	442 ms	45172 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	404 ms	16936 KB	Output is correct
3	Correct	375 ms	16848 KB	Output is correct
4	Correct	393 ms	45100 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	41 ms	5784 KB	Output is correct
7	Correct	46 ms	5780 KB	Output is correct
8	Correct	42 ms	5616 KB	Output is correct
9	Correct	41 ms	5704 KB	Output is correct
10	Correct	41 ms	5784 KB	Output is correct
11	Correct	41 ms	5724 KB	Output is correct
12	Correct	42 ms	5688 KB	Output is correct
13	Correct	44 ms	5784 KB	Output is correct
14	Correct	39 ms	5624 KB	Output is correct
15	Correct	47 ms	5700 KB	Output is correct
16	Correct	42 ms	5688 KB	Output is correct
17	Correct	41 ms	5796 KB	Output is correct
18	Correct	413 ms	44972 KB	Output is correct
19	Correct	418 ms	45008 KB	Output is correct
20	Correct	441 ms	45020 KB	Output is correct
21	Correct	44 ms	5720 KB	Output is correct
22	Correct	39 ms	5704 KB	Output is correct
23	Correct	124 ms	18428 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	41 ms	2392 KB	Output is correct
3	Correct	39 ms	2420 KB	Output is correct
4	Correct	426 ms	16744 KB	Output is correct
5	Correct	38 ms	2640 KB	Output is correct
6	Correct	39 ms	2376 KB	Output is correct
7	Correct	38 ms	2472 KB	Output is correct
8	Correct	39 ms	2512 KB	Output is correct
9	Correct	40 ms	2516 KB	Output is correct
10	Correct	41 ms	2512 KB	Output is correct
11	Correct	41 ms	2456 KB	Output is correct
12	Correct	35 ms	2512 KB	Output is correct
13	Correct	38 ms	2484 KB	Output is correct
14	Correct	412 ms	16796 KB	Output is correct
15	Correct	39 ms	2452 KB	Output is correct
16	Correct	399 ms	53172 KB	Output is correct
17	Correct	409 ms	53164 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	0 ms	212 KB	Output is correct
2	Correct	5 ms	724 KB	Output is correct
3	Correct	4 ms	600 KB	Output is correct
4	Correct	0 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	312 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	320 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	4 ms	984 KB	Output is correct
17	Correct	45 ms	5696 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	1 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	281 ms	16768 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	404 ms	16936 KB	Output is correct
31	Correct	375 ms	16848 KB	Output is correct
32	Correct	393 ms	45100 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	410 ms	44928 KB	Output is correct
35	Correct	397 ms	45108 KB	Output is correct
36	Correct	405 ms	45080 KB	Output is correct
37	Correct	442 ms	45172 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	41 ms	5784 KB	Output is correct
40	Correct	46 ms	5780 KB	Output is correct
41	Correct	42 ms	5616 KB	Output is correct
42	Correct	41 ms	5704 KB	Output is correct
43	Correct	41 ms	5784 KB	Output is correct
44	Correct	41 ms	5724 KB	Output is correct
45	Correct	42 ms	5688 KB	Output is correct
46	Correct	44 ms	5784 KB	Output is correct
47	Correct	39 ms	5624 KB	Output is correct
48	Correct	47 ms	5700 KB	Output is correct
49	Correct	42 ms	5688 KB	Output is correct
50	Correct	41 ms	5796 KB	Output is correct
51	Correct	413 ms	44972 KB	Output is correct
52	Correct	418 ms	45008 KB	Output is correct
53	Correct	441 ms	45020 KB	Output is correct
54	Correct	44 ms	5720 KB	Output is correct
55	Correct	39 ms	5704 KB	Output is correct
56	Correct	124 ms	18428 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	41 ms	2392 KB	Output is correct
59	Correct	39 ms	2420 KB	Output is correct
60	Correct	426 ms	16744 KB	Output is correct
61	Correct	38 ms	2640 KB	Output is correct
62	Correct	39 ms	2376 KB	Output is correct
63	Correct	38 ms	2472 KB	Output is correct
64	Correct	39 ms	2512 KB	Output is correct
65	Correct	40 ms	2516 KB	Output is correct
66	Correct	41 ms	2512 KB	Output is correct
67	Correct	41 ms	2456 KB	Output is correct
68	Correct	35 ms	2512 KB	Output is correct
69	Correct	38 ms	2484 KB	Output is correct
70	Correct	412 ms	16796 KB	Output is correct
71	Correct	39 ms	2452 KB	Output is correct
72	Correct	399 ms	53172 KB	Output is correct
73	Correct	409 ms	53164 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	320 KB	Output is correct
78	Correct	1 ms	212 KB	Output is correct
79	Correct	5 ms	984 KB	Output is correct
80	Correct	487 ms	53272 KB	Output is correct
81	Correct	495 ms	53288 KB	Output is correct
82	Correct	440 ms	53088 KB	Output is correct
83	Correct	450 ms	53072 KB	Output is correct
84	Correct	578 ms	53060 KB	Output is correct
85	Correct	453 ms	52980 KB	Output is correct
86	Correct	132 ms	18424 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #721461

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