Submission #211477

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
211477	2020-03-20T13:11:13 Z	VEGAnn	Strange Device (APIO19_strange_device)	C++14	100 / 100	709 ms	33600 KB

strange_device

#include <bits/stdc++.h>
//#pragma GCC optimize("unroll-loops")
//#pragma GCC optimize("-O3")
//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("fast-math")
//#pragma GCC optimize("no-stack-protector")
#define ft first
#define sd second
#define all(x) x.begin(),x.end()
#define sz(x) ((int)x.size())
#define pll pair<ll, ll>
#define MP make_pair
#define PB push_back
using namespace std;
typedef long long ll;
//typedef long long __int128;
vector<pll> seg;
int n;
ll A, B;

int main(){

#ifdef _LOCAL
    freopen("in.txt","r",stdin);
#else
    ios_base::sync_with_stdio(0); cin.tie(0);
#endif // _LOCAL

    cin >> n >> A >> B;

    ll fi = A;
    ll gc = __gcd(A, B + 1);

    if (A / gc > ll(2e18) / B)
        fi = ll(2e18);
    else fi = A / gc * B;

    seg.clear();

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

        if (r - l + 1 >= fi){
            seg.PB(MP(0, fi - 1));
            continue;
        }

        ll vl = ((l - 1) / fi) * fi + fi;

        if (vl > r){
            vl -= fi;
            seg.PB(MP(l - vl, r - vl));
        } else {
            vl -= fi;
            seg.PB(MP(l - vl, fi - 1));
            vl += fi;
            seg.PB(MP(0ll, r - vl));
        }
    }

    sort(all(seg));

    ll lst = -1, ans = 0;

    for (pll cr : seg)
        if (cr.ft > lst){
            ans += cr.sd - cr.ft + 1ll;
            lst = cr.sd;
        } else {

            ans += max(lst, cr.sd) - lst;
            lst = max(lst, cr.sd);
        }

    cout << ans << '\n';

    return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	10 ms	1152 KB	Output is correct
3	Correct	10 ms	1152 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	4 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	10 ms	1152 KB	Output is correct
17	Correct	59 ms	3816 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct

Subtask #2
5.0 / 5.0

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

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	421 ms	33600 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	513 ms	17596 KB	Output is correct
3	Correct	484 ms	17620 KB	Output is correct
4	Correct	709 ms	17504 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	513 ms	17596 KB	Output is correct
3	Correct	484 ms	17620 KB	Output is correct
4	Correct	709 ms	17504 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	504 ms	17496 KB	Output is correct
7	Correct	492 ms	17364 KB	Output is correct
8	Correct	502 ms	17384 KB	Output is correct
9	Correct	542 ms	17244 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	513 ms	17596 KB	Output is correct
3	Correct	484 ms	17620 KB	Output is correct
4	Correct	709 ms	17504 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	54 ms	3832 KB	Output is correct
7	Correct	57 ms	3832 KB	Output is correct
8	Correct	55 ms	3824 KB	Output is correct
9	Correct	56 ms	3824 KB	Output is correct
10	Correct	63 ms	3756 KB	Output is correct
11	Correct	54 ms	3824 KB	Output is correct
12	Correct	52 ms	3824 KB	Output is correct
13	Correct	59 ms	3824 KB	Output is correct
14	Correct	52 ms	3832 KB	Output is correct
15	Correct	60 ms	3824 KB	Output is correct
16	Correct	57 ms	3824 KB	Output is correct
17	Correct	55 ms	3828 KB	Output is correct
18	Correct	503 ms	17492 KB	Output is correct
19	Correct	489 ms	17364 KB	Output is correct
20	Correct	551 ms	17564 KB	Output is correct
21	Correct	58 ms	3824 KB	Output is correct
22	Correct	50 ms	3824 KB	Output is correct
23	Correct	182 ms	18936 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	59 ms	3960 KB	Output is correct
3	Correct	61 ms	3952 KB	Output is correct
4	Correct	579 ms	17104 KB	Output is correct
5	Correct	57 ms	3704 KB	Output is correct
6	Correct	78 ms	3696 KB	Output is correct
7	Correct	57 ms	3696 KB	Output is correct
8	Correct	57 ms	3704 KB	Output is correct
9	Correct	57 ms	3696 KB	Output is correct
10	Correct	57 ms	3704 KB	Output is correct
11	Correct	57 ms	3696 KB	Output is correct
12	Correct	50 ms	3696 KB	Output is correct
13	Correct	56 ms	3696 KB	Output is correct
14	Correct	542 ms	17468 KB	Output is correct
15	Correct	58 ms	3696 KB	Output is correct
16	Correct	496 ms	17112 KB	Output is correct
17	Correct	490 ms	17112 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	10 ms	1152 KB	Output is correct
3	Correct	10 ms	1152 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	4 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	4 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	4 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	10 ms	1152 KB	Output is correct
17	Correct	59 ms	3816 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	4 ms	384 KB	Output is correct
21	Correct	4 ms	384 KB	Output is correct
22	Correct	4 ms	384 KB	Output is correct
23	Correct	5 ms	384 KB	Output is correct
24	Correct	5 ms	384 KB	Output is correct
25	Correct	5 ms	384 KB	Output is correct
26	Correct	5 ms	384 KB	Output is correct
27	Correct	5 ms	384 KB	Output is correct
28	Correct	421 ms	33600 KB	Output is correct
29	Correct	4 ms	384 KB	Output is correct
30	Correct	513 ms	17596 KB	Output is correct
31	Correct	484 ms	17620 KB	Output is correct
32	Correct	709 ms	17504 KB	Output is correct
33	Correct	4 ms	384 KB	Output is correct
34	Correct	504 ms	17496 KB	Output is correct
35	Correct	492 ms	17364 KB	Output is correct
36	Correct	502 ms	17384 KB	Output is correct
37	Correct	542 ms	17244 KB	Output is correct
38	Correct	4 ms	384 KB	Output is correct
39	Correct	54 ms	3832 KB	Output is correct
40	Correct	57 ms	3832 KB	Output is correct
41	Correct	55 ms	3824 KB	Output is correct
42	Correct	56 ms	3824 KB	Output is correct
43	Correct	63 ms	3756 KB	Output is correct
44	Correct	54 ms	3824 KB	Output is correct
45	Correct	52 ms	3824 KB	Output is correct
46	Correct	59 ms	3824 KB	Output is correct
47	Correct	52 ms	3832 KB	Output is correct
48	Correct	60 ms	3824 KB	Output is correct
49	Correct	57 ms	3824 KB	Output is correct
50	Correct	55 ms	3828 KB	Output is correct
51	Correct	503 ms	17492 KB	Output is correct
52	Correct	489 ms	17364 KB	Output is correct
53	Correct	551 ms	17564 KB	Output is correct
54	Correct	58 ms	3824 KB	Output is correct
55	Correct	50 ms	3824 KB	Output is correct
56	Correct	182 ms	18936 KB	Output is correct
57	Correct	5 ms	384 KB	Output is correct
58	Correct	59 ms	3960 KB	Output is correct
59	Correct	61 ms	3952 KB	Output is correct
60	Correct	579 ms	17104 KB	Output is correct
61	Correct	57 ms	3704 KB	Output is correct
62	Correct	78 ms	3696 KB	Output is correct
63	Correct	57 ms	3696 KB	Output is correct
64	Correct	57 ms	3704 KB	Output is correct
65	Correct	57 ms	3696 KB	Output is correct
66	Correct	57 ms	3704 KB	Output is correct
67	Correct	57 ms	3696 KB	Output is correct
68	Correct	50 ms	3696 KB	Output is correct
69	Correct	56 ms	3696 KB	Output is correct
70	Correct	542 ms	17468 KB	Output is correct
71	Correct	58 ms	3696 KB	Output is correct
72	Correct	496 ms	17112 KB	Output is correct
73	Correct	490 ms	17112 KB	Output is correct
74	Correct	4 ms	384 KB	Output is correct
75	Correct	4 ms	384 KB	Output is correct
76	Correct	5 ms	384 KB	Output is correct
77	Correct	4 ms	384 KB	Output is correct
78	Correct	4 ms	384 KB	Output is correct
79	Correct	10 ms	1152 KB	Output is correct
80	Correct	585 ms	17400 KB	Output is correct
81	Correct	561 ms	17108 KB	Output is correct
82	Correct	533 ms	17108 KB	Output is correct
83	Correct	543 ms	17296 KB	Output is correct
84	Correct	571 ms	17112 KB	Output is correct
85	Correct	548 ms	17108 KB	Output is correct
86	Correct	188 ms	18732 KB	Output is correct
87	Correct	5 ms	384 KB	Output is correct

Submission #211477

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