Submission #712949

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
712949	2023-03-20T14:39:07 Z	inventiontime	Strange Device (APIO19_strange_device)	C++17	100 / 100	684 ms	49784 KB

strange_device

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

#define int ll
#define endl '\n' //comment for interactive
#define fast_io ios::sync_with_stdio(0); cin.tie(0); cout.tie(0)

#define pb push_back
#define re resize
#define ff first
#define ss second

#define all(x) (x).begin(), (x).end()
#define loop(i, n) for(int i = 0; i < n; i++)
#define loop1(i, n) for(int i = 1; i <= n; i++)
#define print(x) cout << #x << ": " << x << endl << flush

typedef long long ll;
typedef vector<int> vi;
typedef array<int, 2> ii;
typedef array<int, 3> ti;
typedef vector<ii> vii;
typedef vector<ti> vti;
typedef priority_queue<int> pq;

template<class T> bool ckmin(T&a, T b) { bool B = a > b; a = min(a, b); return B; }
template<class T> bool ckmax(T&a, T b) { bool B = a < b; a = max(a, b); return B; }

const int inf = 1e17;
//const int maxn = ;

void solve() {

    int n, a, b;
    cin >> n >> a >> b;

    int p = 1.1e18;
    if((float) b * a / __gcd(a, b+1) < p) 
        p = b * a / __gcd(a, b+1);

    vii intvl;
    loop(i, n) {
        int l, r; cin >> l >> r;
        if(r - l + 1 >= p) intvl.pb({0, p-1});
        else {
            int x = l/p;
            l -= x*p;
            r -= x*p;
            if(r >= p) {
                intvl.pb({l, p-1});
                intvl.pb({0, r-p});
            } else {
                intvl.pb({l, r});
            }
        }
    }

    vii pts;
    for(auto [a, b] : intvl) {
        pts.pb({a, 1});
        pts.pb({b, 2});
    }
    sort(all(pts));

    int st = -1;
    int cnt = 0;
    int res = 0;
    for(auto [x, t] : pts) {
        if(t == 1) {
            if(cnt) cnt++;
            else {
                st = x;
                cnt++;
            }
        } else {
            cnt--;
            if(cnt) {}
            else
                res += x - st + 1;
        }
    }

    cout << res << endl;

}

signed main() {

    fast_io;

    int t = 1; //cin >> t;
    while(t--)
        solve();

    return 0;

}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	7 ms	1364 KB	Output is correct
3	Correct	6 ms	1368 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	320 KB	Output is correct
6	Correct	1 ms	324 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	324 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	7 ms	1364 KB	Output is correct
17	Correct	74 ms	6340 KB	Output is correct
18	Correct	1 ms	320 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	1 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	2 ms	332 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	436 ms	49196 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	589 ms	49516 KB	Output is correct
3	Correct	571 ms	49440 KB	Output is correct
4	Correct	556 ms	49364 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	589 ms	49516 KB	Output is correct
3	Correct	571 ms	49440 KB	Output is correct
4	Correct	556 ms	49364 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	573 ms	49276 KB	Output is correct
7	Correct	564 ms	49360 KB	Output is correct
8	Correct	558 ms	49308 KB	Output is correct
9	Correct	625 ms	49312 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	589 ms	49516 KB	Output is correct
3	Correct	571 ms	49440 KB	Output is correct
4	Correct	556 ms	49364 KB	Output is correct
5	Correct	1 ms	320 KB	Output is correct
6	Correct	54 ms	6276 KB	Output is correct
7	Correct	61 ms	6388 KB	Output is correct
8	Correct	53 ms	6472 KB	Output is correct
9	Correct	57 ms	6300 KB	Output is correct
10	Correct	52 ms	6264 KB	Output is correct
11	Correct	58 ms	6384 KB	Output is correct
12	Correct	53 ms	6396 KB	Output is correct
13	Correct	59 ms	6308 KB	Output is correct
14	Correct	53 ms	6308 KB	Output is correct
15	Correct	65 ms	6304 KB	Output is correct
16	Correct	67 ms	6292 KB	Output is correct
17	Correct	55 ms	6296 KB	Output is correct
18	Correct	589 ms	49312 KB	Output is correct
19	Correct	526 ms	49236 KB	Output is correct
20	Correct	657 ms	49428 KB	Output is correct
21	Correct	62 ms	6336 KB	Output is correct
22	Correct	49 ms	6376 KB	Output is correct
23	Correct	160 ms	22564 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	64 ms	6272 KB	Output is correct
3	Correct	62 ms	6440 KB	Output is correct
4	Correct	663 ms	49600 KB	Output is correct
5	Correct	64 ms	6304 KB	Output is correct
6	Correct	61 ms	6476 KB	Output is correct
7	Correct	64 ms	6332 KB	Output is correct
8	Correct	63 ms	6320 KB	Output is correct
9	Correct	57 ms	6384 KB	Output is correct
10	Correct	60 ms	6324 KB	Output is correct
11	Correct	61 ms	6304 KB	Output is correct
12	Correct	63 ms	6372 KB	Output is correct
13	Correct	64 ms	6352 KB	Output is correct
14	Correct	619 ms	49412 KB	Output is correct
15	Correct	65 ms	6336 KB	Output is correct
16	Correct	520 ms	49256 KB	Output is correct
17	Correct	556 ms	49460 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	1 ms	212 KB	Output is correct
2	Correct	7 ms	1364 KB	Output is correct
3	Correct	6 ms	1368 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	320 KB	Output is correct
6	Correct	1 ms	324 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	324 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	7 ms	1364 KB	Output is correct
17	Correct	74 ms	6340 KB	Output is correct
18	Correct	1 ms	320 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	1 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	2 ms	332 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	436 ms	49196 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	589 ms	49516 KB	Output is correct
31	Correct	571 ms	49440 KB	Output is correct
32	Correct	556 ms	49364 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	573 ms	49276 KB	Output is correct
35	Correct	564 ms	49360 KB	Output is correct
36	Correct	558 ms	49308 KB	Output is correct
37	Correct	625 ms	49312 KB	Output is correct
38	Correct	1 ms	320 KB	Output is correct
39	Correct	54 ms	6276 KB	Output is correct
40	Correct	61 ms	6388 KB	Output is correct
41	Correct	53 ms	6472 KB	Output is correct
42	Correct	57 ms	6300 KB	Output is correct
43	Correct	52 ms	6264 KB	Output is correct
44	Correct	58 ms	6384 KB	Output is correct
45	Correct	53 ms	6396 KB	Output is correct
46	Correct	59 ms	6308 KB	Output is correct
47	Correct	53 ms	6308 KB	Output is correct
48	Correct	65 ms	6304 KB	Output is correct
49	Correct	67 ms	6292 KB	Output is correct
50	Correct	55 ms	6296 KB	Output is correct
51	Correct	589 ms	49312 KB	Output is correct
52	Correct	526 ms	49236 KB	Output is correct
53	Correct	657 ms	49428 KB	Output is correct
54	Correct	62 ms	6336 KB	Output is correct
55	Correct	49 ms	6376 KB	Output is correct
56	Correct	160 ms	22564 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	64 ms	6272 KB	Output is correct
59	Correct	62 ms	6440 KB	Output is correct
60	Correct	663 ms	49600 KB	Output is correct
61	Correct	64 ms	6304 KB	Output is correct
62	Correct	61 ms	6476 KB	Output is correct
63	Correct	64 ms	6332 KB	Output is correct
64	Correct	63 ms	6320 KB	Output is correct
65	Correct	57 ms	6384 KB	Output is correct
66	Correct	60 ms	6324 KB	Output is correct
67	Correct	61 ms	6304 KB	Output is correct
68	Correct	63 ms	6372 KB	Output is correct
69	Correct	64 ms	6352 KB	Output is correct
70	Correct	619 ms	49412 KB	Output is correct
71	Correct	65 ms	6336 KB	Output is correct
72	Correct	520 ms	49256 KB	Output is correct
73	Correct	556 ms	49460 KB	Output is correct
74	Correct	1 ms	212 KB	Output is correct
75	Correct	1 ms	212 KB	Output is correct
76	Correct	1 ms	316 KB	Output is correct
77	Correct	1 ms	212 KB	Output is correct
78	Correct	1 ms	316 KB	Output is correct
79	Correct	6 ms	1480 KB	Output is correct
80	Correct	667 ms	49784 KB	Output is correct
81	Correct	669 ms	49704 KB	Output is correct
82	Correct	663 ms	49692 KB	Output is correct
83	Correct	684 ms	49680 KB	Output is correct
84	Correct	672 ms	49612 KB	Output is correct
85	Correct	634 ms	49564 KB	Output is correct
86	Correct	219 ms	33164 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #712949

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