Submission #710531

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
710531	2023-03-15T10:24:50 Z	Ronin13	Strange Device (APIO19_strange_device)	C++14	100 / 100	645 ms	53364 KB

strange_device

#include <bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define f first
#define s second
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pb push_back
#define epb emplace_back
using namespace std;
const int nmax = 1000001;


int main(){
    ios_base::sync_with_stdio(false); cin.tie(0);
    int n; cin >> n;
    ll a, b; cin >> a >> b;
    ll l[n + 1], r[n + 1];
    for(int i = 1; i <= n; i++)
        cin >> l[i] >> r[i];
    ll o = 2e18;
    if(o / a < b + 1){
        ll s = 0;
        for(int i = 1; i <= n; i++)
            s += (r[i] - l[i] + 1);
        cout << s << "\n";
        return 0;
    }
    ll x = __gcd(a, b + 1);
    x = a / x * b;
    vector <pll> vec;
    int cnt = 0;
    for(int i = 1; i <= n; i++){
        if(l[i] / x == r[i] / x){
            vec.pb({l[i] % x, 1});
            vec.pb({r[i] % x + 1, -1});
        }
        else{
            vec.pb({l[i] % x, 1});
            vec.pb({x, -1});
            vec.pb({0, 1});
            vec.pb({r[i] % x + 1, -1});
        }
    }
    sort(vec.begin(), vec.end());
    ll ans = 0;
    ll last = -1;
    for(auto to : vec){
        ll x = to.f, y = to.s;
        if(cnt == 0){
            last = x;
        }
        cnt += y;
        if(cnt == 0){
            ans += x - last;
        }
    }
    cout << ans;
    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	6 ms	1496 KB	Output is correct
3	Correct	5 ms	1496 KB	Output is correct
4	Correct	1 ms	316 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 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	1 ms	340 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	320 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	6 ms	1480 KB	Output is correct
17	Correct	57 ms	9772 KB	Output is correct
18	Correct	1 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	0 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	1 ms	212 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	320 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	371 ms	51056 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	517 ms	53216 KB	Output is correct
3	Correct	549 ms	53320 KB	Output is correct
4	Correct	484 ms	53280 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	517 ms	53216 KB	Output is correct
3	Correct	549 ms	53320 KB	Output is correct
4	Correct	484 ms	53280 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	519 ms	53248 KB	Output is correct
7	Correct	496 ms	53364 KB	Output is correct
8	Correct	486 ms	53352 KB	Output is correct
9	Correct	594 ms	53236 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	517 ms	53216 KB	Output is correct
3	Correct	549 ms	53320 KB	Output is correct
4	Correct	484 ms	53280 KB	Output is correct
5	Correct	1 ms	316 KB	Output is correct
6	Correct	54 ms	9788 KB	Output is correct
7	Correct	53 ms	9772 KB	Output is correct
8	Correct	51 ms	9772 KB	Output is correct
9	Correct	51 ms	9796 KB	Output is correct
10	Correct	48 ms	9800 KB	Output is correct
11	Correct	50 ms	9792 KB	Output is correct
12	Correct	49 ms	9776 KB	Output is correct
13	Correct	56 ms	9776 KB	Output is correct
14	Correct	53 ms	9776 KB	Output is correct
15	Correct	77 ms	9800 KB	Output is correct
16	Correct	56 ms	9768 KB	Output is correct
17	Correct	50 ms	9788 KB	Output is correct
18	Correct	538 ms	53308 KB	Output is correct
19	Correct	490 ms	53244 KB	Output is correct
20	Correct	597 ms	53176 KB	Output is correct
21	Correct	57 ms	9776 KB	Output is correct
22	Correct	44 ms	9772 KB	Output is correct
23	Correct	142 ms	34800 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	272 KB	Output is correct
2	Correct	57 ms	9772 KB	Output is correct
3	Correct	55 ms	9776 KB	Output is correct
4	Correct	615 ms	53184 KB	Output is correct
5	Correct	56 ms	9776 KB	Output is correct
6	Correct	51 ms	9788 KB	Output is correct
7	Correct	53 ms	9796 KB	Output is correct
8	Correct	56 ms	9796 KB	Output is correct
9	Correct	53 ms	9780 KB	Output is correct
10	Correct	56 ms	9772 KB	Output is correct
11	Correct	58 ms	9772 KB	Output is correct
12	Correct	49 ms	9780 KB	Output is correct
13	Correct	57 ms	9776 KB	Output is correct
14	Correct	554 ms	53016 KB	Output is correct
15	Correct	61 ms	9788 KB	Output is correct
16	Correct	509 ms	53020 KB	Output is correct
17	Correct	487 ms	53040 KB	Output is correct
18	Correct	1 ms	324 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	6 ms	1496 KB	Output is correct
3	Correct	5 ms	1496 KB	Output is correct
4	Correct	1 ms	316 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 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	1 ms	340 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	320 KB	Output is correct
13	Correct	1 ms	320 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	6 ms	1480 KB	Output is correct
17	Correct	57 ms	9772 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	0 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	1 ms	212 KB	Output is correct
24	Correct	1 ms	320 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	371 ms	51056 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	517 ms	53216 KB	Output is correct
31	Correct	549 ms	53320 KB	Output is correct
32	Correct	484 ms	53280 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	519 ms	53248 KB	Output is correct
35	Correct	496 ms	53364 KB	Output is correct
36	Correct	486 ms	53352 KB	Output is correct
37	Correct	594 ms	53236 KB	Output is correct
38	Correct	1 ms	316 KB	Output is correct
39	Correct	54 ms	9788 KB	Output is correct
40	Correct	53 ms	9772 KB	Output is correct
41	Correct	51 ms	9772 KB	Output is correct
42	Correct	51 ms	9796 KB	Output is correct
43	Correct	48 ms	9800 KB	Output is correct
44	Correct	50 ms	9792 KB	Output is correct
45	Correct	49 ms	9776 KB	Output is correct
46	Correct	56 ms	9776 KB	Output is correct
47	Correct	53 ms	9776 KB	Output is correct
48	Correct	77 ms	9800 KB	Output is correct
49	Correct	56 ms	9768 KB	Output is correct
50	Correct	50 ms	9788 KB	Output is correct
51	Correct	538 ms	53308 KB	Output is correct
52	Correct	490 ms	53244 KB	Output is correct
53	Correct	597 ms	53176 KB	Output is correct
54	Correct	57 ms	9776 KB	Output is correct
55	Correct	44 ms	9772 KB	Output is correct
56	Correct	142 ms	34800 KB	Output is correct
57	Correct	1 ms	272 KB	Output is correct
58	Correct	57 ms	9772 KB	Output is correct
59	Correct	55 ms	9776 KB	Output is correct
60	Correct	615 ms	53184 KB	Output is correct
61	Correct	56 ms	9776 KB	Output is correct
62	Correct	51 ms	9788 KB	Output is correct
63	Correct	53 ms	9796 KB	Output is correct
64	Correct	56 ms	9796 KB	Output is correct
65	Correct	53 ms	9780 KB	Output is correct
66	Correct	56 ms	9772 KB	Output is correct
67	Correct	58 ms	9772 KB	Output is correct
68	Correct	49 ms	9780 KB	Output is correct
69	Correct	57 ms	9776 KB	Output is correct
70	Correct	554 ms	53016 KB	Output is correct
71	Correct	61 ms	9788 KB	Output is correct
72	Correct	509 ms	53020 KB	Output is correct
73	Correct	487 ms	53040 KB	Output is correct
74	Correct	1 ms	324 KB	Output is correct
75	Correct	1 ms	316 KB	Output is correct
76	Correct	0 ms	324 KB	Output is correct
77	Correct	1 ms	212 KB	Output is correct
78	Correct	1 ms	320 KB	Output is correct
79	Correct	7 ms	1492 KB	Output is correct
80	Correct	625 ms	52900 KB	Output is correct
81	Correct	645 ms	52784 KB	Output is correct
82	Correct	566 ms	52748 KB	Output is correct
83	Correct	604 ms	52468 KB	Output is correct
84	Correct	585 ms	51932 KB	Output is correct
85	Correct	572 ms	51204 KB	Output is correct
86	Correct	148 ms	34632 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #710531

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