Submission #563618

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
563618	2022-05-17T17:36:47 Z	Ooops_sorry	Strange Device (APIO19_strange_device)	C++14	100 / 100	665 ms	117536 KB

strange_device

#include<bits/stdc++.h>

using namespace std;

#define pb push_back
#define ld long double
#define ll long long

mt19937 rnd(51);

ll gcd(ll a, ll b) {
    if (b == 0) {
        return a;
    } else {
        return gcd(b, a % b);
    }
}

__int128 lcm(ll a, ll b) {
    return (__int128)a * b / gcd(a, b);
}

ll solve(ll n, ll a, ll b, vector<ll> l, vector<ll> r) {
    ll ans = 0, need;
    bool was = 0, sum = 0;
    ll k = lcm(a, b + 1) / (__int128)(b + 1);
    if (log2(k) + log2(b) > log2(1e18) + 1) {
        sum = 1;
    } else {
        need = k * b;
    }
    vector<pair<ll, ll>> seg, u;
    for (int i = 0; i < n; i++) {
        if (sum) {
            ans += r[i] - l[i] + 1;
        } else {
            if (r[i] - l[i] + 1 >= need) {
                was = 1;
            } else {
                ll l1 = l[i] % (need), r1 = r[i] % (need);
                if (l1 <= r1) {
                    seg.pb({l1, r1});
                } else {
                    seg.pb({l1, need - 1});
                    seg.pb({0, r1});
                }
            }
        }
    }
    if (was) {
        return need;
    }
    if (sum) {
        return ans;
    } else {
        for (auto to : seg) {
            u.pb({to.first, 1});
            u.pb({to.second + 1, -1});
        }
        sort(u.begin(), u.end());
        ll bal = 0, last = -1;
        for (auto to : u) {
            if (bal > 0) {
                ans += to.first - last;
            }
            bal += to.second;
            last = to.first;
        }
        return ans;
    }
}

signed main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
#endif // LCOAL
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    ll n, a, b;
    cin >> n >> a >> b;
    vector<ll> l(n), r(n);
    for (int i = 0; i < n; i++) {
        cin >> l[i] >> r[i];
    }
    cout << solve(n, a, b, l, r) << endl;
    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	1364 KB	Output is correct
3	Correct	6 ms	1364 KB	Output is correct
4	Correct	1 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	1 ms	212 KB	Output is correct
8	Correct	1 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	0 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	1364 KB	Output is correct
17	Correct	59 ms	9240 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	212 KB	Output is correct
2	Correct	212 KB	Output is correct
3	Correct	212 KB	Output is correct
4	Correct	212 KB	Output is correct
5	Correct	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	373 ms	80328 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	521 ms	80196 KB	Output is correct
3	Correct	551 ms	80292 KB	Output is correct
4	Correct	509 ms	80344 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	521 ms	80196 KB	Output is correct
3	Correct	551 ms	80292 KB	Output is correct
4	Correct	509 ms	80344 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	540 ms	80280 KB	Output is correct
7	Correct	556 ms	117408 KB	Output is correct
8	Correct	562 ms	117316 KB	Output is correct
9	Correct	634 ms	117300 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	521 ms	80196 KB	Output is correct
3	Correct	551 ms	80292 KB	Output is correct
4	Correct	509 ms	80344 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	53 ms	9188 KB	Output is correct
7	Correct	51 ms	9248 KB	Output is correct
8	Correct	50 ms	9176 KB	Output is correct
9	Correct	55 ms	9188 KB	Output is correct
10	Correct	51 ms	9252 KB	Output is correct
11	Correct	52 ms	9188 KB	Output is correct
12	Correct	47 ms	9208 KB	Output is correct
13	Correct	55 ms	9192 KB	Output is correct
14	Correct	49 ms	9160 KB	Output is correct
15	Correct	60 ms	9188 KB	Output is correct
16	Correct	62 ms	9192 KB	Output is correct
17	Correct	52 ms	9284 KB	Output is correct
18	Correct	555 ms	117420 KB	Output is correct
19	Correct	536 ms	117420 KB	Output is correct
20	Correct	639 ms	117356 KB	Output is correct
21	Correct	67 ms	12996 KB	Output is correct
22	Correct	49 ms	12884 KB	Output is correct
23	Correct	152 ms	45428 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	59 ms	9188 KB	Output is correct
3	Correct	56 ms	9160 KB	Output is correct
4	Correct	646 ms	80196 KB	Output is correct
5	Correct	56 ms	9160 KB	Output is correct
6	Correct	56 ms	9192 KB	Output is correct
7	Correct	56 ms	9196 KB	Output is correct
8	Correct	58 ms	9160 KB	Output is correct
9	Correct	56 ms	9188 KB	Output is correct
10	Correct	60 ms	9232 KB	Output is correct
11	Correct	56 ms	9212 KB	Output is correct
12	Correct	50 ms	9188 KB	Output is correct
13	Correct	59 ms	9184 KB	Output is correct
14	Correct	591 ms	80188 KB	Output is correct
15	Correct	60 ms	9296 KB	Output is correct
16	Correct	497 ms	80196 KB	Output is correct
17	Correct	522 ms	80288 KB	Output is correct
18	Correct	0 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	1364 KB	Output is correct
3	Correct	6 ms	1364 KB	Output is correct
4	Correct	1 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	1 ms	212 KB	Output is correct
8	Correct	1 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	0 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	1364 KB	Output is correct
17	Correct	59 ms	9240 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 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	373 ms	80328 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	521 ms	80196 KB	Output is correct
31	Correct	551 ms	80292 KB	Output is correct
32	Correct	509 ms	80344 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	540 ms	80280 KB	Output is correct
35	Correct	556 ms	117408 KB	Output is correct
36	Correct	562 ms	117316 KB	Output is correct
37	Correct	634 ms	117300 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	53 ms	9188 KB	Output is correct
40	Correct	51 ms	9248 KB	Output is correct
41	Correct	50 ms	9176 KB	Output is correct
42	Correct	55 ms	9188 KB	Output is correct
43	Correct	51 ms	9252 KB	Output is correct
44	Correct	52 ms	9188 KB	Output is correct
45	Correct	47 ms	9208 KB	Output is correct
46	Correct	55 ms	9192 KB	Output is correct
47	Correct	49 ms	9160 KB	Output is correct
48	Correct	60 ms	9188 KB	Output is correct
49	Correct	62 ms	9192 KB	Output is correct
50	Correct	52 ms	9284 KB	Output is correct
51	Correct	555 ms	117420 KB	Output is correct
52	Correct	536 ms	117420 KB	Output is correct
53	Correct	639 ms	117356 KB	Output is correct
54	Correct	67 ms	12996 KB	Output is correct
55	Correct	49 ms	12884 KB	Output is correct
56	Correct	152 ms	45428 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	59 ms	9188 KB	Output is correct
59	Correct	56 ms	9160 KB	Output is correct
60	Correct	646 ms	80196 KB	Output is correct
61	Correct	56 ms	9160 KB	Output is correct
62	Correct	56 ms	9192 KB	Output is correct
63	Correct	56 ms	9196 KB	Output is correct
64	Correct	58 ms	9160 KB	Output is correct
65	Correct	56 ms	9188 KB	Output is correct
66	Correct	60 ms	9232 KB	Output is correct
67	Correct	56 ms	9212 KB	Output is correct
68	Correct	50 ms	9188 KB	Output is correct
69	Correct	59 ms	9184 KB	Output is correct
70	Correct	591 ms	80188 KB	Output is correct
71	Correct	60 ms	9296 KB	Output is correct
72	Correct	497 ms	80196 KB	Output is correct
73	Correct	522 ms	80288 KB	Output is correct
74	Correct	0 ms	212 KB	Output is correct
75	Correct	1 ms	212 KB	Output is correct
76	Correct	1 ms	212 KB	Output is correct
77	Correct	1 ms	212 KB	Output is correct
78	Correct	1 ms	212 KB	Output is correct
79	Correct	6 ms	1748 KB	Output is correct
80	Correct	650 ms	117424 KB	Output is correct
81	Correct	665 ms	117316 KB	Output is correct
82	Correct	614 ms	117488 KB	Output is correct
83	Correct	622 ms	117536 KB	Output is correct
84	Correct	628 ms	117308 KB	Output is correct
85	Correct	617 ms	117420 KB	Output is correct
86	Correct	156 ms	45376 KB	Output is correct
87	Correct	1 ms	328 KB	Output is correct

Submission #563618

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