Submission #721639

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
721639	2023-04-11T06:02:04 Z	GrandTiger1729	Strange Device (APIO19_strange_device)	C++17	100 / 100	654 ms	38604 KB

strange_device

#include <bits/stdc++.h>
using namespace std;

const long long INF = 1e18 + 10;
int main(){
    cin.tie(0)->sync_with_stdio(0);
    int n; cin >> n;
    long long A, B; cin >> A >> B;
    if ((__int128_t)1 * A * B / __gcd(A, B + 1) >= INF){
        long long ans = 0;
        for (int i = 0; i < n; i++){
            long long l, r; cin >> l >> r;
            ans += r - l + 1;
        }
        cout << ans << '\n';
        return 0;
    }
    long long D = (__int128_t)1 * A * B / __gcd(A, B + 1);
    vector<pair<long long, int>> res;
    for (int i = 0; i < n; i++){
        long long l, r; cin >> l >> r;
        r++;
        if (r - l >= D){
            cout << D << '\n';
            return 0;
        }
        long long ll = D * (l / D + 1), rr = D * (r / D);
        if (ll > rr){
            res.emplace_back(l % D, 1);
            res.emplace_back(r % D, -1);
        }else{
            res.emplace_back(l % D, 1);
            res.emplace_back(D, -1);
            res.emplace_back(0, 1);
            res.emplace_back(r % D, -1);
        }
    } 
    sort(res.begin(), res.end());
    // cerr << D << '\n';
    // cerr << res.size() << '\n';
    // for (auto &[t, d]: res)
    //     cerr << t << ' ' << d << endl;
    int N = res.size(), cur = 0;
    long long ans = 0;
    for (int i = 0; i < N; ){
        int r = i;
        while (r < N && res[i].first == res[r].first) r++;
        for (int j = i; j < r; j++)
            cur += res[j].second;
        if (cur > 0)
            ans += res[r].first - res[i].first;
        i = r;
    }
    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	856 KB	Output is correct
3	Correct	5 ms	856 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 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	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	6 ms	980 KB	Output is correct
17	Correct	60 ms	4548 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 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	328 ms	33224 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	495 ms	33192 KB	Output is correct
3	Correct	501 ms	33188 KB	Output is correct
4	Correct	460 ms	33256 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	495 ms	33192 KB	Output is correct
3	Correct	501 ms	33188 KB	Output is correct
4	Correct	460 ms	33256 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	518 ms	33288 KB	Output is correct
7	Correct	474 ms	33296 KB	Output is correct
8	Correct	460 ms	33292 KB	Output is correct
9	Correct	576 ms	33176 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	495 ms	33192 KB	Output is correct
3	Correct	501 ms	33188 KB	Output is correct
4	Correct	460 ms	33256 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	47 ms	4468 KB	Output is correct
7	Correct	51 ms	4468 KB	Output is correct
8	Correct	46 ms	4468 KB	Output is correct
9	Correct	48 ms	4544 KB	Output is correct
10	Correct	46 ms	4556 KB	Output is correct
11	Correct	54 ms	4468 KB	Output is correct
12	Correct	44 ms	4556 KB	Output is correct
13	Correct	55 ms	4448 KB	Output is correct
14	Correct	52 ms	4544 KB	Output is correct
15	Correct	59 ms	4500 KB	Output is correct
16	Correct	56 ms	5188 KB	Output is correct
17	Correct	47 ms	5184 KB	Output is correct
18	Correct	561 ms	38604 KB	Output is correct
19	Correct	491 ms	38516 KB	Output is correct
20	Correct	629 ms	38384 KB	Output is correct
21	Correct	55 ms	5188 KB	Output is correct
22	Correct	44 ms	5180 KB	Output is correct
23	Correct	148 ms	17392 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	53 ms	4548 KB	Output is correct
3	Correct	66 ms	4572 KB	Output is correct
4	Correct	627 ms	33220 KB	Output is correct
5	Correct	53 ms	4548 KB	Output is correct
6	Correct	52 ms	4488 KB	Output is correct
7	Correct	49 ms	4500 KB	Output is correct
8	Correct	54 ms	4556 KB	Output is correct
9	Correct	53 ms	4552 KB	Output is correct
10	Correct	55 ms	4520 KB	Output is correct
11	Correct	49 ms	4544 KB	Output is correct
12	Correct	45 ms	4548 KB	Output is correct
13	Correct	53 ms	4504 KB	Output is correct
14	Correct	580 ms	33160 KB	Output is correct
15	Correct	54 ms	4556 KB	Output is correct
16	Correct	476 ms	34552 KB	Output is correct
17	Correct	474 ms	34700 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	856 KB	Output is correct
3	Correct	5 ms	856 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 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	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	6 ms	980 KB	Output is correct
17	Correct	60 ms	4548 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 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	328 ms	33224 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	495 ms	33192 KB	Output is correct
31	Correct	501 ms	33188 KB	Output is correct
32	Correct	460 ms	33256 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	518 ms	33288 KB	Output is correct
35	Correct	474 ms	33296 KB	Output is correct
36	Correct	460 ms	33292 KB	Output is correct
37	Correct	576 ms	33176 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	47 ms	4468 KB	Output is correct
40	Correct	51 ms	4468 KB	Output is correct
41	Correct	46 ms	4468 KB	Output is correct
42	Correct	48 ms	4544 KB	Output is correct
43	Correct	46 ms	4556 KB	Output is correct
44	Correct	54 ms	4468 KB	Output is correct
45	Correct	44 ms	4556 KB	Output is correct
46	Correct	55 ms	4448 KB	Output is correct
47	Correct	52 ms	4544 KB	Output is correct
48	Correct	59 ms	4500 KB	Output is correct
49	Correct	56 ms	5188 KB	Output is correct
50	Correct	47 ms	5184 KB	Output is correct
51	Correct	561 ms	38604 KB	Output is correct
52	Correct	491 ms	38516 KB	Output is correct
53	Correct	629 ms	38384 KB	Output is correct
54	Correct	55 ms	5188 KB	Output is correct
55	Correct	44 ms	5180 KB	Output is correct
56	Correct	148 ms	17392 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	53 ms	4548 KB	Output is correct
59	Correct	66 ms	4572 KB	Output is correct
60	Correct	627 ms	33220 KB	Output is correct
61	Correct	53 ms	4548 KB	Output is correct
62	Correct	52 ms	4488 KB	Output is correct
63	Correct	49 ms	4500 KB	Output is correct
64	Correct	54 ms	4556 KB	Output is correct
65	Correct	53 ms	4552 KB	Output is correct
66	Correct	55 ms	4520 KB	Output is correct
67	Correct	49 ms	4544 KB	Output is correct
68	Correct	45 ms	4548 KB	Output is correct
69	Correct	53 ms	4504 KB	Output is correct
70	Correct	580 ms	33160 KB	Output is correct
71	Correct	54 ms	4556 KB	Output is correct
72	Correct	476 ms	34552 KB	Output is correct
73	Correct	474 ms	34700 KB	Output is correct
74	Correct	1 ms	212 KB	Output is correct
75	Correct	1 ms	212 KB	Output is correct
76	Correct	0 ms	320 KB	Output is correct
77	Correct	0 ms	212 KB	Output is correct
78	Correct	0 ms	212 KB	Output is correct
79	Correct	5 ms	1348 KB	Output is correct
80	Correct	654 ms	34476 KB	Output is correct
81	Correct	613 ms	34604 KB	Output is correct
82	Correct	575 ms	34456 KB	Output is correct
83	Correct	595 ms	34472 KB	Output is correct
84	Correct	579 ms	34396 KB	Output is correct
85	Correct	575 ms	34480 KB	Output is correct
86	Correct	151 ms	22544 KB	Output is correct
87	Correct	1 ms	320 KB	Output is correct

Submission #721639

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