Submission #672849

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
672849	2022-12-18T12:30:39 Z	ParsaS	Strange Device (APIO19_strange_device)	C++17	100 / 100	943 ms	100136 KB

strange_device

// In the name of God
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define mp make_pair
typedef long long ll;
const int N = 2e5 + 5;
ll A, B;
int n;

void solve() {
    cin >> n >> A >> B;
    ll C = __gcd(A, B + 1);
    ll Ap = A / C;
    ll M;
    if ((ll)1e18 / B < Ap) {
        M = 1e18 + 1;
    }
    else
        M = B * Ap;
    /*ll g = __gcd(Ap, B);
    ll M;
    if (B > 1e9 || (ll)1e18 / (B * B) < (Ap / g))
        M = 1e18 + 1;
    else {
        M = Ap / g * B * B;
    }*/
    bool ok = false;
   /* for (int i = 1; i < 100; i++) {
        if ((i + i / B) % A == 0 && i % B == 0) {
            cout << i << endl;
        }
    }*/
    map<ll, int> vec;
    for (int i = 0; i < n; i++) {
        ll l, r; cin >> l >> r;
        if (r - l >= M) {
            ok = true;
        }
        l %= M, r %= M;
        vec[l]++;
        vec[r + 1]--;
        if (l > r) {
            vec[0]++;
            vec[M]--;
        }
    }
    if (ok) {
        cout << M << '\n';
        return;
    }
    ll prv = 0;
    ll sum = 0, ans = 0;
    for (auto [x, y] : vec) {
        bool tmpp = sum;
        sum += y;
        if (tmpp)
            ans += x - prv;
        if (sum)
            prv = x;
    }
    cout << ans << '\n';
}

int32_t main() {
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    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	6 ms	1272 KB	Output is correct
3	Correct	8 ms	1236 KB	Output is correct
4	Correct	0 ms	212 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	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	1 ms	212 KB	Output is correct
16	Correct	6 ms	1228 KB	Output is correct
17	Correct	62 ms	10296 KB	Output is correct
18	Correct	0 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	1 ms	212 KB	Output is correct
3	Correct	1 ms	316 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	324 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	2 ms	340 KB	Output is correct
4	Correct	2 ms	340 KB	Output is correct
5	Correct	359 ms	25420 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	655 ms	100136 KB	Output is correct
3	Correct	700 ms	100120 KB	Output is correct
4	Correct	825 ms	100024 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	655 ms	100136 KB	Output is correct
3	Correct	700 ms	100120 KB	Output is correct
4	Correct	825 ms	100024 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	690 ms	99740 KB	Output is correct
7	Correct	752 ms	99768 KB	Output is correct
8	Correct	718 ms	99792 KB	Output is correct
9	Correct	789 ms	99256 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	655 ms	100136 KB	Output is correct
3	Correct	700 ms	100120 KB	Output is correct
4	Correct	825 ms	100024 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	62 ms	10288 KB	Output is correct
7	Correct	57 ms	10260 KB	Output is correct
8	Correct	62 ms	10236 KB	Output is correct
9	Correct	63 ms	10260 KB	Output is correct
10	Correct	59 ms	10312 KB	Output is correct
11	Correct	75 ms	10188 KB	Output is correct
12	Correct	68 ms	10300 KB	Output is correct
13	Correct	64 ms	10400 KB	Output is correct
14	Correct	56 ms	10208 KB	Output is correct
15	Correct	71 ms	10188 KB	Output is correct
16	Correct	83 ms	10272 KB	Output is correct
17	Correct	73 ms	10208 KB	Output is correct
18	Correct	776 ms	99672 KB	Output is correct
19	Correct	809 ms	99244 KB	Output is correct
20	Correct	802 ms	98868 KB	Output is correct
21	Correct	71 ms	10200 KB	Output is correct
22	Correct	78 ms	10188 KB	Output is correct
23	Correct	141 ms	12908 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	320 KB	Output is correct
2	Correct	73 ms	10304 KB	Output is correct
3	Correct	78 ms	10260 KB	Output is correct
4	Correct	877 ms	98900 KB	Output is correct
5	Correct	74 ms	10216 KB	Output is correct
6	Correct	71 ms	10224 KB	Output is correct
7	Correct	89 ms	10240 KB	Output is correct
8	Correct	77 ms	10304 KB	Output is correct
9	Correct	68 ms	10188 KB	Output is correct
10	Correct	68 ms	10200 KB	Output is correct
11	Correct	69 ms	10200 KB	Output is correct
12	Correct	92 ms	10288 KB	Output is correct
13	Correct	78 ms	10292 KB	Output is correct
14	Correct	888 ms	98876 KB	Output is correct
15	Correct	72 ms	10188 KB	Output is correct
16	Correct	704 ms	98808 KB	Output is correct
17	Correct	800 ms	98776 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	6 ms	1272 KB	Output is correct
3	Correct	8 ms	1236 KB	Output is correct
4	Correct	0 ms	212 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	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	1 ms	212 KB	Output is correct
16	Correct	6 ms	1228 KB	Output is correct
17	Correct	62 ms	10296 KB	Output is correct
18	Correct	0 ms	212 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	316 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	1 ms	324 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	2 ms	340 KB	Output is correct
27	Correct	2 ms	340 KB	Output is correct
28	Correct	359 ms	25420 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	655 ms	100136 KB	Output is correct
31	Correct	700 ms	100120 KB	Output is correct
32	Correct	825 ms	100024 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	690 ms	99740 KB	Output is correct
35	Correct	752 ms	99768 KB	Output is correct
36	Correct	718 ms	99792 KB	Output is correct
37	Correct	789 ms	99256 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	62 ms	10288 KB	Output is correct
40	Correct	57 ms	10260 KB	Output is correct
41	Correct	62 ms	10236 KB	Output is correct
42	Correct	63 ms	10260 KB	Output is correct
43	Correct	59 ms	10312 KB	Output is correct
44	Correct	75 ms	10188 KB	Output is correct
45	Correct	68 ms	10300 KB	Output is correct
46	Correct	64 ms	10400 KB	Output is correct
47	Correct	56 ms	10208 KB	Output is correct
48	Correct	71 ms	10188 KB	Output is correct
49	Correct	83 ms	10272 KB	Output is correct
50	Correct	73 ms	10208 KB	Output is correct
51	Correct	776 ms	99672 KB	Output is correct
52	Correct	809 ms	99244 KB	Output is correct
53	Correct	802 ms	98868 KB	Output is correct
54	Correct	71 ms	10200 KB	Output is correct
55	Correct	78 ms	10188 KB	Output is correct
56	Correct	141 ms	12908 KB	Output is correct
57	Correct	1 ms	320 KB	Output is correct
58	Correct	73 ms	10304 KB	Output is correct
59	Correct	78 ms	10260 KB	Output is correct
60	Correct	877 ms	98900 KB	Output is correct
61	Correct	74 ms	10216 KB	Output is correct
62	Correct	71 ms	10224 KB	Output is correct
63	Correct	89 ms	10240 KB	Output is correct
64	Correct	77 ms	10304 KB	Output is correct
65	Correct	68 ms	10188 KB	Output is correct
66	Correct	68 ms	10200 KB	Output is correct
67	Correct	69 ms	10200 KB	Output is correct
68	Correct	92 ms	10288 KB	Output is correct
69	Correct	78 ms	10292 KB	Output is correct
70	Correct	888 ms	98876 KB	Output is correct
71	Correct	72 ms	10188 KB	Output is correct
72	Correct	704 ms	98808 KB	Output is correct
73	Correct	800 ms	98776 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	324 KB	Output is correct
77	Correct	1 ms	212 KB	Output is correct
78	Correct	1 ms	316 KB	Output is correct
79	Correct	7 ms	1228 KB	Output is correct
80	Correct	902 ms	98820 KB	Output is correct
81	Correct	939 ms	99120 KB	Output is correct
82	Correct	860 ms	98956 KB	Output is correct
83	Correct	897 ms	98748 KB	Output is correct
84	Correct	943 ms	98808 KB	Output is correct
85	Correct	940 ms	98808 KB	Output is correct
86	Correct	132 ms	12840 KB	Output is correct
87	Correct	1 ms	312 KB	Output is correct

Submission #672849

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