Submission #216355

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
216355	2020-03-27T07:47:28 Z	usachevd0	Strange Device (APIO19_strange_device)	C++14	100 / 100	798 ms	46020 KB

strange_device

#include <bits/stdc++.h>

using namespace std;

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define all(a) (a).begin(), (a).end()

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef long double ld;

void debug_out()
{
    cerr << endl;
}

template<typename T1, typename... T2> void debug_out(T1 A, T2... B)
{
    cerr << ' ' << A;
    debug_out(B...);
}

#ifdef DEBUG
    #define time(...) 42
    #define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
    #define debug(...) 42
#endif

template<typename T1, typename T2> bool chkmin(T1 &x, T2 y) { return y < x ? (x = y, true) : false; }
template<typename T1, typename T2> bool chkmax(T1 &x, T2 y) { return y > x ? (x = y, true) : false; }

ll gcd(ll a, ll b)
{
    for (; b; swap(a, b)) a %= b;
    return a;
}

signed main()
{
#ifdef DEBUG
    freopen("in", "r", stdin);
#endif
    ios::sync_with_stdio(0);
    cin.tie(0);

    int n;
    ll A, B;
    cin >> n >> A >> B;
    ll M1 = A / gcd(B + 1, A);
    ld temp = M1 * (ld)B;
    if (temp > 2000000000000000100LL)
    {
        ll sum = 0;
        while (n--)
        {
            ll l, r;
            cin >> l >> r;
            sum += r - l + 1;
        }
        cout << sum << '\n';
        exit(0);
    }
    ll M = M1 * B;
    vector<pll> ev;
    while (n--)
    {
        ll l, r;
        cin >> l >> r;
        if (r - l + 1 >= M)
        {
            cout << M << '\n';
            exit(0);
        }
        l %= M;
        r %= M;
        if (l <= r)
        {
            ev.emplace_back(l, 0);
            ev.emplace_back(r, 1);
        }
        else
        {
            ev.emplace_back(0, 0);
            ev.emplace_back(r, 1);
            ev.emplace_back(l, 0);
            ev.emplace_back(M - 1, 1);
        }
    }
    sort(all(ev));
    int cnt = 0;
    ll last = -1;
    ll ans = 0;
    for (auto &e : ev)
    {
        if (e.se == 0)
        {
            ++cnt;
            if (cnt == 1)
            {
                last = e.fi;
            }
        }
        else
        {
            --cnt;
            if (cnt == 0)
            {
                ans += e.fi - last + 1;
            }
        }
    }
    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	1024 KB	Output is correct
3	Correct	10 ms	1024 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	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	4 ms	384 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	4 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	11 ms	1024 KB	Output is correct
17	Correct	76 ms	4596 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	4 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	5 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	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	445 ms	41920 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	640 ms	33392 KB	Output is correct
3	Correct	634 ms	33344 KB	Output is correct
4	Correct	704 ms	45908 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	640 ms	33392 KB	Output is correct
3	Correct	634 ms	33344 KB	Output is correct
4	Correct	704 ms	45908 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	661 ms	45992 KB	Output is correct
7	Correct	647 ms	45764 KB	Output is correct
8	Correct	643 ms	45888 KB	Output is correct
9	Correct	764 ms	45888 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	640 ms	33392 KB	Output is correct
3	Correct	634 ms	33344 KB	Output is correct
4	Correct	704 ms	45908 KB	Output is correct
5	Correct	5 ms	512 KB	Output is correct
6	Correct	68 ms	7276 KB	Output is correct
7	Correct	67 ms	7276 KB	Output is correct
8	Correct	65 ms	7276 KB	Output is correct
9	Correct	74 ms	7272 KB	Output is correct
10	Correct	66 ms	7276 KB	Output is correct
11	Correct	70 ms	7284 KB	Output is correct
12	Correct	65 ms	7400 KB	Output is correct
13	Correct	72 ms	7396 KB	Output is correct
14	Correct	73 ms	7276 KB	Output is correct
15	Correct	74 ms	7276 KB	Output is correct
16	Correct	75 ms	7272 KB	Output is correct
17	Correct	67 ms	7396 KB	Output is correct
18	Correct	705 ms	44616 KB	Output is correct
19	Correct	668 ms	45856 KB	Output is correct
20	Correct	798 ms	46020 KB	Output is correct
21	Correct	75 ms	7272 KB	Output is correct
22	Correct	68 ms	7368 KB	Output is correct
23	Correct	186 ms	26708 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	70 ms	4588 KB	Output is correct
3	Correct	70 ms	4588 KB	Output is correct
4	Correct	773 ms	33320 KB	Output is correct
5	Correct	88 ms	4588 KB	Output is correct
6	Correct	70 ms	4588 KB	Output is correct
7	Correct	72 ms	4588 KB	Output is correct
8	Correct	72 ms	4584 KB	Output is correct
9	Correct	69 ms	4588 KB	Output is correct
10	Correct	75 ms	4588 KB	Output is correct
11	Correct	77 ms	4584 KB	Output is correct
12	Correct	64 ms	4584 KB	Output is correct
13	Correct	76 ms	7276 KB	Output is correct
14	Correct	729 ms	45760 KB	Output is correct
15	Correct	77 ms	7272 KB	Output is correct
16	Correct	616 ms	45760 KB	Output is correct
17	Correct	631 ms	45756 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	10 ms	1024 KB	Output is correct
3	Correct	10 ms	1024 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	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	4 ms	384 KB	Output is correct
11	Correct	4 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	4 ms	384 KB	Output is correct
14	Correct	4 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	11 ms	1024 KB	Output is correct
17	Correct	76 ms	4596 KB	Output is correct
18	Correct	4 ms	384 KB	Output is correct
19	Correct	4 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	5 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	384 KB	Output is correct
27	Correct	5 ms	384 KB	Output is correct
28	Correct	445 ms	41920 KB	Output is correct
29	Correct	5 ms	384 KB	Output is correct
30	Correct	640 ms	33392 KB	Output is correct
31	Correct	634 ms	33344 KB	Output is correct
32	Correct	704 ms	45908 KB	Output is correct
33	Correct	5 ms	384 KB	Output is correct
34	Correct	661 ms	45992 KB	Output is correct
35	Correct	647 ms	45764 KB	Output is correct
36	Correct	643 ms	45888 KB	Output is correct
37	Correct	764 ms	45888 KB	Output is correct
38	Correct	5 ms	512 KB	Output is correct
39	Correct	68 ms	7276 KB	Output is correct
40	Correct	67 ms	7276 KB	Output is correct
41	Correct	65 ms	7276 KB	Output is correct
42	Correct	74 ms	7272 KB	Output is correct
43	Correct	66 ms	7276 KB	Output is correct
44	Correct	70 ms	7284 KB	Output is correct
45	Correct	65 ms	7400 KB	Output is correct
46	Correct	72 ms	7396 KB	Output is correct
47	Correct	73 ms	7276 KB	Output is correct
48	Correct	74 ms	7276 KB	Output is correct
49	Correct	75 ms	7272 KB	Output is correct
50	Correct	67 ms	7396 KB	Output is correct
51	Correct	705 ms	44616 KB	Output is correct
52	Correct	668 ms	45856 KB	Output is correct
53	Correct	798 ms	46020 KB	Output is correct
54	Correct	75 ms	7272 KB	Output is correct
55	Correct	68 ms	7368 KB	Output is correct
56	Correct	186 ms	26708 KB	Output is correct
57	Correct	5 ms	384 KB	Output is correct
58	Correct	70 ms	4588 KB	Output is correct
59	Correct	70 ms	4588 KB	Output is correct
60	Correct	773 ms	33320 KB	Output is correct
61	Correct	88 ms	4588 KB	Output is correct
62	Correct	70 ms	4588 KB	Output is correct
63	Correct	72 ms	4588 KB	Output is correct
64	Correct	72 ms	4584 KB	Output is correct
65	Correct	69 ms	4588 KB	Output is correct
66	Correct	75 ms	4588 KB	Output is correct
67	Correct	77 ms	4584 KB	Output is correct
68	Correct	64 ms	4584 KB	Output is correct
69	Correct	76 ms	7276 KB	Output is correct
70	Correct	729 ms	45760 KB	Output is correct
71	Correct	77 ms	7272 KB	Output is correct
72	Correct	616 ms	45760 KB	Output is correct
73	Correct	631 ms	45756 KB	Output is correct
74	Correct	5 ms	384 KB	Output is correct
75	Correct	5 ms	384 KB	Output is correct
76	Correct	5 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	11 ms	1408 KB	Output is correct
80	Correct	779 ms	45888 KB	Output is correct
81	Correct	783 ms	45892 KB	Output is correct
82	Correct	720 ms	44444 KB	Output is correct
83	Correct	732 ms	45888 KB	Output is correct
84	Correct	733 ms	44572 KB	Output is correct
85	Correct	722 ms	44444 KB	Output is correct
86	Correct	198 ms	26836 KB	Output is correct
87	Correct	5 ms	384 KB	Output is correct

Submission #216355

Compilation message