Submission #1048992

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1048992	2024-08-08T11:51:21 Z	ihceker	Strange Device (APIO19_strange_device)	C++14	100 / 100	967 ms	70336 KB

strange_device

#include<bits/stdc++.h>
#define int long long
#define MOD 1000000007
#define all(x) x.begin(),x.end()
#define ff first
#define ss second
#define pb push_back
#define fast ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
 
using namespace std;

const int inf=1e18+5;
 
int32_t main(){
	int n,a,b;
	cin>>n>>a>>b;
	int x;
	if(inf/b<a/__gcd(a,b+1)){
		x=inf;
	}
	else x=b*(a/__gcd(a,b+1));
	vector<pair<int,int>>pre;
	for(int i=0;i<n;i++){
		int l,r;
		cin>>l>>r;
		if(r-l+1>=x){
			cout<<x<<endl;
			return 0;
		}
		if(l%x>r%x){
			pre.pb({0,1});
			pre.pb({r%x+1,-1});
			pre.pb({l%x,1});
			pre.pb({x,-1});
		}
		else{
			pre.pb({l%x,1});
			pre.pb({r%x+1,-1});
		}
	}
	sort(all(pre));
	int sum=0,ans=0,last=pre[0].ff;
	for(auto i:pre){
		if(sum>0){
			ans+=i.ff-last;
		}
		sum+=i.ss;
		last=i.ff;
	}
	cout<<ans<<endl;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	8 ms	1240 KB	Output is correct
3	Correct	8 ms	1236 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	432 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	8 ms	1240 KB	Output is correct
17	Correct	115 ms	7580 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	555 ms	57028 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	432 KB	Output is correct
2	Correct	823 ms	69108 KB	Output is correct
3	Correct	782 ms	68860 KB	Output is correct
4	Correct	740 ms	70112 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	432 KB	Output is correct
2	Correct	823 ms	69108 KB	Output is correct
3	Correct	782 ms	68860 KB	Output is correct
4	Correct	740 ms	70112 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	763 ms	69028 KB	Output is correct
7	Correct	781 ms	70300 KB	Output is correct
8	Correct	767 ms	69024 KB	Output is correct
9	Correct	791 ms	69020 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	432 KB	Output is correct
2	Correct	823 ms	69108 KB	Output is correct
3	Correct	782 ms	68860 KB	Output is correct
4	Correct	740 ms	70112 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	74 ms	7560 KB	Output is correct
7	Correct	75 ms	7668 KB	Output is correct
8	Correct	85 ms	7708 KB	Output is correct
9	Correct	76 ms	7540 KB	Output is correct
10	Correct	72 ms	8384 KB	Output is correct
11	Correct	75 ms	8376 KB	Output is correct
12	Correct	74 ms	8204 KB	Output is correct
13	Correct	82 ms	9152 KB	Output is correct
14	Correct	78 ms	7260 KB	Output is correct
15	Correct	80 ms	7620 KB	Output is correct
16	Correct	79 ms	8396 KB	Output is correct
17	Correct	74 ms	8464 KB	Output is correct
18	Correct	786 ms	69404 KB	Output is correct
19	Correct	753 ms	69356 KB	Output is correct
20	Correct	797 ms	70336 KB	Output is correct
21	Correct	79 ms	7624 KB	Output is correct
22	Correct	74 ms	8396 KB	Output is correct
23	Correct	233 ms	27520 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	78 ms	8964 KB	Output is correct
3	Correct	84 ms	8384 KB	Output is correct
4	Correct	836 ms	69788 KB	Output is correct
5	Correct	79 ms	7876 KB	Output is correct
6	Correct	91 ms	8384 KB	Output is correct
7	Correct	77 ms	7620 KB	Output is correct
8	Correct	100 ms	8128 KB	Output is correct
9	Correct	76 ms	8124 KB	Output is correct
10	Correct	79 ms	8152 KB	Output is correct
11	Correct	77 ms	8160 KB	Output is correct
12	Correct	74 ms	7620 KB	Output is correct
13	Correct	81 ms	9152 KB	Output is correct
14	Correct	967 ms	69024 KB	Output is correct
15	Correct	83 ms	7876 KB	Output is correct
16	Correct	753 ms	69076 KB	Output is correct
17	Correct	790 ms	69428 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	344 KB	Output is correct
2	Correct	8 ms	1240 KB	Output is correct
3	Correct	8 ms	1236 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	432 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	8 ms	1240 KB	Output is correct
17	Correct	115 ms	7580 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	555 ms	57028 KB	Output is correct
29	Correct	0 ms	432 KB	Output is correct
30	Correct	823 ms	69108 KB	Output is correct
31	Correct	782 ms	68860 KB	Output is correct
32	Correct	740 ms	70112 KB	Output is correct
33	Correct	0 ms	344 KB	Output is correct
34	Correct	763 ms	69028 KB	Output is correct
35	Correct	781 ms	70300 KB	Output is correct
36	Correct	767 ms	69024 KB	Output is correct
37	Correct	791 ms	69020 KB	Output is correct
38	Correct	1 ms	348 KB	Output is correct
39	Correct	74 ms	7560 KB	Output is correct
40	Correct	75 ms	7668 KB	Output is correct
41	Correct	85 ms	7708 KB	Output is correct
42	Correct	76 ms	7540 KB	Output is correct
43	Correct	72 ms	8384 KB	Output is correct
44	Correct	75 ms	8376 KB	Output is correct
45	Correct	74 ms	8204 KB	Output is correct
46	Correct	82 ms	9152 KB	Output is correct
47	Correct	78 ms	7260 KB	Output is correct
48	Correct	80 ms	7620 KB	Output is correct
49	Correct	79 ms	8396 KB	Output is correct
50	Correct	74 ms	8464 KB	Output is correct
51	Correct	786 ms	69404 KB	Output is correct
52	Correct	753 ms	69356 KB	Output is correct
53	Correct	797 ms	70336 KB	Output is correct
54	Correct	79 ms	7624 KB	Output is correct
55	Correct	74 ms	8396 KB	Output is correct
56	Correct	233 ms	27520 KB	Output is correct
57	Correct	0 ms	348 KB	Output is correct
58	Correct	78 ms	8964 KB	Output is correct
59	Correct	84 ms	8384 KB	Output is correct
60	Correct	836 ms	69788 KB	Output is correct
61	Correct	79 ms	7876 KB	Output is correct
62	Correct	91 ms	8384 KB	Output is correct
63	Correct	77 ms	7620 KB	Output is correct
64	Correct	100 ms	8128 KB	Output is correct
65	Correct	76 ms	8124 KB	Output is correct
66	Correct	79 ms	8152 KB	Output is correct
67	Correct	77 ms	8160 KB	Output is correct
68	Correct	74 ms	7620 KB	Output is correct
69	Correct	81 ms	9152 KB	Output is correct
70	Correct	967 ms	69024 KB	Output is correct
71	Correct	83 ms	7876 KB	Output is correct
72	Correct	753 ms	69076 KB	Output is correct
73	Correct	790 ms	69428 KB	Output is correct
74	Correct	0 ms	348 KB	Output is correct
75	Correct	0 ms	348 KB	Output is correct
76	Correct	0 ms	348 KB	Output is correct
77	Correct	0 ms	348 KB	Output is correct
78	Correct	0 ms	348 KB	Output is correct
79	Correct	8 ms	1240 KB	Output is correct
80	Correct	795 ms	68980 KB	Output is correct
81	Correct	796 ms	69796 KB	Output is correct
82	Correct	787 ms	69272 KB	Output is correct
83	Correct	787 ms	70300 KB	Output is correct
84	Correct	826 ms	69016 KB	Output is correct
85	Correct	863 ms	70044 KB	Output is correct
86	Correct	244 ms	28296 KB	Output is correct
87	Correct	0 ms	344 KB	Output is correct

Submission #1048992

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