Submission #211605

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
211605	2020-03-20T19:23:51 Z	devid	Strange Device (APIO19_strange_device)	C++17	100 / 100	808 ms	47552 KB

strange_device

#pragma GCC optimize("Ofast,fast-math,unroll-loops")
 
#include <bits/stdc++.h>
 
#define int ll
//#define double long double
#define endl '\n'
#define all(C) (C).begin(), (C).end()
#define rall(C) (C).rbegin(), (C).rend()
#define mp make_pair 
#define pb emplace_back
#define dbg(x) cerr << #x << " : " << x << endl
//#define PI 3.141592653589
 
using namespace std;
        
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair <int, int>;
using pld = pair <ld, ld>;

/*
const ll MAX_MEM = 4e8;
char MEM[MAX_MEM];
ll MEM_POS = 0;
void* operator new(size_t x)
{
    auto ret = MEM + MEM_POS;
    MEM_POS += x;
    assert(MEM_POS < MAX_MEM);
    return ret;
}
void operator delete(void*)
{}
*/
        
template <class T>
istream& operator>> (istream &in, vector <T> &a)
{
    for (auto &i : a)
        in >> i;
    return in;
}
        
template <class T> 
ostream& operator<< (ostream &out, vector <T> a)
{
    for (auto &i : a)
        out << i << ' ';
    return out;
}
        
template <class T, class U>
istream& operator>> (istream &in, pair <T, U> &p)
{
    in >> p.first >> p.second;
    return in;
}
        
template <class T, class U>
ostream& operator<< (ostream &out, pair <T, U> p)
{
    out << p.first << " " << p.second << " ";
    return out;
}
        
inline void Start()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0), cout.tie(0);
    //freopen("lol.in", "r", stdin);
    //freopen("lol.out", "w", stdout);
}

const int OPEN = 0, CLOSE = 1;
struct event
{
    int x, t;
    event() {}
    event(int x, int t) : x(x), t(t) {}
};

signed main()
{
    Start();
    int n, a, b;
    cin >> n >> a >> b;
    int k = a / gcd(a, b + 1);
    int t = k * b;
    vector <event> e;
    for (int i = 0; i < n; ++i)
    {
        int l, r;
        cin >> l >> r;
        if (l / t == r / t)
        {
            e.pb(l % t, OPEN);
            e.pb(r % t + 1, CLOSE);
            continue;
        }
        if (l / t + 1 == r / t)
        {
            if (r - l + 1 < t)
            {
                e.pb(l % t, OPEN);
                e.pb(t, CLOSE);
                e.pb(0, OPEN);
                e.pb(r % t + 1, CLOSE);
                continue;
            }
        }
        cout << t;
        return 0;
    }
    sort(all(e), [] (event a, event b) {return a.x < b.x || (a.x == b.x && a.t < b.t);});
    int lst = -1, bal = 0, ans = 0;
    for (auto f : e)
    {
        if (f.t == OPEN)
        {
            ++bal;
            if (bal == 1)
                lst = f.x;
        }
        else
        {
            --bal;
            if (!bal)
            {
                ans += f.x - lst;
            }
        }
    }
    cout << ans;
    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	13 ms	1408 KB	Output is correct
3	Correct	11 ms	1408 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 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	4 ms	384 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	11 ms	1400 KB	Output is correct
17	Correct	82 ms	7272 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	5 ms	492 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	504 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	420 ms	46528 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	623 ms	47384 KB	Output is correct
3	Correct	667 ms	47188 KB	Output is correct
4	Correct	616 ms	47296 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	623 ms	47384 KB	Output is correct
3	Correct	667 ms	47188 KB	Output is correct
4	Correct	616 ms	47296 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	659 ms	47552 KB	Output is correct
7	Correct	646 ms	47432 KB	Output is correct
8	Correct	641 ms	47276 KB	Output is correct
9	Correct	720 ms	47168 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	623 ms	47384 KB	Output is correct
3	Correct	667 ms	47188 KB	Output is correct
4	Correct	616 ms	47296 KB	Output is correct
5	Correct	4 ms	384 KB	Output is correct
6	Correct	65 ms	7276 KB	Output is correct
7	Correct	69 ms	7276 KB	Output is correct
8	Correct	62 ms	7396 KB	Output is correct
9	Correct	63 ms	7272 KB	Output is correct
10	Correct	63 ms	7404 KB	Output is correct
11	Correct	68 ms	7276 KB	Output is correct
12	Correct	63 ms	7276 KB	Output is correct
13	Correct	71 ms	7276 KB	Output is correct
14	Correct	62 ms	7276 KB	Output is correct
15	Correct	75 ms	7276 KB	Output is correct
16	Correct	74 ms	7392 KB	Output is correct
17	Correct	65 ms	7396 KB	Output is correct
18	Correct	646 ms	47292 KB	Output is correct
19	Correct	609 ms	47296 KB	Output is correct
20	Correct	739 ms	47404 KB	Output is correct
21	Correct	75 ms	7276 KB	Output is correct
22	Correct	64 ms	7272 KB	Output is correct
23	Correct	187 ms	26904 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	384 KB	Output is correct
2	Correct	73 ms	7348 KB	Output is correct
3	Correct	76 ms	7264 KB	Output is correct
4	Correct	792 ms	47168 KB	Output is correct
5	Correct	75 ms	7396 KB	Output is correct
6	Correct	77 ms	7396 KB	Output is correct
7	Correct	71 ms	7272 KB	Output is correct
8	Correct	75 ms	7396 KB	Output is correct
9	Correct	71 ms	7276 KB	Output is correct
10	Correct	76 ms	7400 KB	Output is correct
11	Correct	77 ms	7396 KB	Output is correct
12	Correct	69 ms	7272 KB	Output is correct
13	Correct	79 ms	7276 KB	Output is correct
14	Correct	763 ms	47288 KB	Output is correct
15	Correct	76 ms	7272 KB	Output is correct
16	Correct	631 ms	47328 KB	Output is correct
17	Correct	655 ms	47292 KB	Output is correct
18	Correct	5 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	13 ms	1408 KB	Output is correct
3	Correct	11 ms	1408 KB	Output is correct
4	Correct	4 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct
11	Correct	5 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	4 ms	384 KB	Output is correct
15	Correct	4 ms	384 KB	Output is correct
16	Correct	11 ms	1400 KB	Output is correct
17	Correct	82 ms	7272 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	492 KB	Output is correct
21	Correct	4 ms	384 KB	Output is correct
22	Correct	4 ms	384 KB	Output is correct
23	Correct	4 ms	384 KB	Output is correct
24	Correct	4 ms	384 KB	Output is correct
25	Correct	5 ms	384 KB	Output is correct
26	Correct	5 ms	504 KB	Output is correct
27	Correct	5 ms	384 KB	Output is correct
28	Correct	420 ms	46528 KB	Output is correct
29	Correct	4 ms	384 KB	Output is correct
30	Correct	623 ms	47384 KB	Output is correct
31	Correct	667 ms	47188 KB	Output is correct
32	Correct	616 ms	47296 KB	Output is correct
33	Correct	4 ms	384 KB	Output is correct
34	Correct	659 ms	47552 KB	Output is correct
35	Correct	646 ms	47432 KB	Output is correct
36	Correct	641 ms	47276 KB	Output is correct
37	Correct	720 ms	47168 KB	Output is correct
38	Correct	4 ms	384 KB	Output is correct
39	Correct	65 ms	7276 KB	Output is correct
40	Correct	69 ms	7276 KB	Output is correct
41	Correct	62 ms	7396 KB	Output is correct
42	Correct	63 ms	7272 KB	Output is correct
43	Correct	63 ms	7404 KB	Output is correct
44	Correct	68 ms	7276 KB	Output is correct
45	Correct	63 ms	7276 KB	Output is correct
46	Correct	71 ms	7276 KB	Output is correct
47	Correct	62 ms	7276 KB	Output is correct
48	Correct	75 ms	7276 KB	Output is correct
49	Correct	74 ms	7392 KB	Output is correct
50	Correct	65 ms	7396 KB	Output is correct
51	Correct	646 ms	47292 KB	Output is correct
52	Correct	609 ms	47296 KB	Output is correct
53	Correct	739 ms	47404 KB	Output is correct
54	Correct	75 ms	7276 KB	Output is correct
55	Correct	64 ms	7272 KB	Output is correct
56	Correct	187 ms	26904 KB	Output is correct
57	Correct	4 ms	384 KB	Output is correct
58	Correct	73 ms	7348 KB	Output is correct
59	Correct	76 ms	7264 KB	Output is correct
60	Correct	792 ms	47168 KB	Output is correct
61	Correct	75 ms	7396 KB	Output is correct
62	Correct	77 ms	7396 KB	Output is correct
63	Correct	71 ms	7272 KB	Output is correct
64	Correct	75 ms	7396 KB	Output is correct
65	Correct	71 ms	7276 KB	Output is correct
66	Correct	76 ms	7400 KB	Output is correct
67	Correct	77 ms	7396 KB	Output is correct
68	Correct	69 ms	7272 KB	Output is correct
69	Correct	79 ms	7276 KB	Output is correct
70	Correct	763 ms	47288 KB	Output is correct
71	Correct	76 ms	7272 KB	Output is correct
72	Correct	631 ms	47328 KB	Output is correct
73	Correct	655 ms	47292 KB	Output is correct
74	Correct	5 ms	384 KB	Output is correct
75	Correct	5 ms	384 KB	Output is correct
76	Correct	4 ms	384 KB	Output is correct
77	Correct	5 ms	384 KB	Output is correct
78	Correct	4 ms	384 KB	Output is correct
79	Correct	10 ms	1408 KB	Output is correct
80	Correct	797 ms	47388 KB	Output is correct
81	Correct	808 ms	47420 KB	Output is correct
82	Correct	737 ms	47552 KB	Output is correct
83	Correct	731 ms	47292 KB	Output is correct
84	Correct	742 ms	47296 KB	Output is correct
85	Correct	716 ms	47296 KB	Output is correct
86	Correct	179 ms	26708 KB	Output is correct
87	Correct	5 ms	384 KB	Output is correct

Submission #211605

Compilation message