Submission #684825

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
684825	2023-01-22T14:24:07 Z	vovamr	Strange Device (APIO19_strange_device)	C++17	100 / 100	681 ms	51652 KB

strange_device

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define fi first
#define se second
#define ll long long
#define ld long double
#define sz(x) ((int)(x).size())
#define all(x) 	(x).begin(), (x).end()
#define pb push_back
#define mpp make_pair
#define ve vector
using namespace std;
using namespace __gnu_pbds;
template<class T> using oset = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
const ll inf = 4e18; const int iinf = 1e9;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T> inline bool chmin(T& a, T b) { return (a > b ? a = b, 1 : 0); }
template <typename T> inline bool chmax(T& a, T b) { return (a < b ? a = b, 1 : 0); }

inline void solve() {
	ll n, a, b;
	cin >> n >> a >> b;

	ll T;

	ll g = gcd(a, b + 1);
	ll f = a / g;
	if (f > inf / b) T = inf;
	else T = f * b;

	ve<pll> ev;
	for (int i = 0; i < n; ++i) {
		ll l, r;
		cin >> l >> r;
		if (r - l + 1 >= T) {
			return void(cout << T);
		}

		l %= T, r %= T;

		if (l <= r) {
			ev.pb({l, +1});
			ev.pb({r + 1, -1});
		}
		else {
			ev.pb({0, +1});
			ev.pb({r + 1, -1});

			ev.pb({l, +1});
			ev.pb({T, -1});
		}
	}

	sort(all(ev));

	ll ans = 0, sum = 0;
	for (int i = 0; i < sz(ev); ) {
		int j = i;
		ll prev = (!i ? 0 : ev[i - 1].fi);
		if (sum > 0) ans += (ev[i].fi - prev);

		while (j < sz(ev) && ev[j].fi == ev[i].fi) {
			sum += ev[j].se;
			++j;
		}
		i = j;
	}

	cout << ans;
}

signed main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	int q = 1; // cin >> q;
	while (q--) solve();
	cerr << fixed << setprecision(3) << "Time execution: " << (double)clock() / CLOCKS_PER_SEC << endl;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	328 KB	Output is correct
2	Correct	6 ms	1104 KB	Output is correct
3	Correct	6 ms	1104 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	316 KB	Output is correct
6	Correct	1 ms	324 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	212 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	6 ms	1064 KB	Output is correct
17	Correct	56 ms	4624 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	324 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	0 ms	212 KB	Output is correct
2	Correct	1 ms	380 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	380 KB	Output is correct
5	Correct	327 ms	33492 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	514 ms	33488 KB	Output is correct
3	Correct	500 ms	33300 KB	Output is correct
4	Correct	476 ms	33432 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	514 ms	33488 KB	Output is correct
3	Correct	500 ms	33300 KB	Output is correct
4	Correct	476 ms	33432 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	488 ms	33464 KB	Output is correct
7	Correct	472 ms	33432 KB	Output is correct
8	Correct	494 ms	33500 KB	Output is correct
9	Correct	553 ms	33472 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	514 ms	33488 KB	Output is correct
3	Correct	500 ms	33300 KB	Output is correct
4	Correct	476 ms	33432 KB	Output is correct
5	Correct	1 ms	256 KB	Output is correct
6	Correct	49 ms	4716 KB	Output is correct
7	Correct	52 ms	4812 KB	Output is correct
8	Correct	45 ms	4792 KB	Output is correct
9	Correct	47 ms	4824 KB	Output is correct
10	Correct	45 ms	4804 KB	Output is correct
11	Correct	48 ms	4712 KB	Output is correct
12	Correct	46 ms	4828 KB	Output is correct
13	Correct	50 ms	4812 KB	Output is correct
14	Correct	46 ms	4812 KB	Output is correct
15	Correct	56 ms	4748 KB	Output is correct
16	Correct	53 ms	4700 KB	Output is correct
17	Correct	46 ms	4756 KB	Output is correct
18	Correct	594 ms	33520 KB	Output is correct
19	Correct	470 ms	33448 KB	Output is correct
20	Correct	565 ms	33508 KB	Output is correct
21	Correct	61 ms	4724 KB	Output is correct
22	Correct	43 ms	4800 KB	Output is correct
23	Correct	137 ms	17092 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	52 ms	4624 KB	Output is correct
3	Correct	53 ms	4608 KB	Output is correct
4	Correct	595 ms	33628 KB	Output is correct
5	Correct	51 ms	4824 KB	Output is correct
6	Correct	54 ms	4804 KB	Output is correct
7	Correct	51 ms	4884 KB	Output is correct
8	Correct	56 ms	4832 KB	Output is correct
9	Correct	50 ms	4708 KB	Output is correct
10	Correct	56 ms	4764 KB	Output is correct
11	Correct	55 ms	4804 KB	Output is correct
12	Correct	45 ms	4740 KB	Output is correct
13	Correct	54 ms	4672 KB	Output is correct
14	Correct	556 ms	33512 KB	Output is correct
15	Correct	55 ms	4728 KB	Output is correct
16	Correct	454 ms	33208 KB	Output is correct
17	Correct	478 ms	33396 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	1 ms	328 KB	Output is correct
2	Correct	6 ms	1104 KB	Output is correct
3	Correct	6 ms	1104 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	316 KB	Output is correct
6	Correct	1 ms	324 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	212 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	6 ms	1064 KB	Output is correct
17	Correct	56 ms	4624 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	324 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	0 ms	212 KB	Output is correct
25	Correct	1 ms	380 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	380 KB	Output is correct
28	Correct	327 ms	33492 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	514 ms	33488 KB	Output is correct
31	Correct	500 ms	33300 KB	Output is correct
32	Correct	476 ms	33432 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	488 ms	33464 KB	Output is correct
35	Correct	472 ms	33432 KB	Output is correct
36	Correct	494 ms	33500 KB	Output is correct
37	Correct	553 ms	33472 KB	Output is correct
38	Correct	1 ms	256 KB	Output is correct
39	Correct	49 ms	4716 KB	Output is correct
40	Correct	52 ms	4812 KB	Output is correct
41	Correct	45 ms	4792 KB	Output is correct
42	Correct	47 ms	4824 KB	Output is correct
43	Correct	45 ms	4804 KB	Output is correct
44	Correct	48 ms	4712 KB	Output is correct
45	Correct	46 ms	4828 KB	Output is correct
46	Correct	50 ms	4812 KB	Output is correct
47	Correct	46 ms	4812 KB	Output is correct
48	Correct	56 ms	4748 KB	Output is correct
49	Correct	53 ms	4700 KB	Output is correct
50	Correct	46 ms	4756 KB	Output is correct
51	Correct	594 ms	33520 KB	Output is correct
52	Correct	470 ms	33448 KB	Output is correct
53	Correct	565 ms	33508 KB	Output is correct
54	Correct	61 ms	4724 KB	Output is correct
55	Correct	43 ms	4800 KB	Output is correct
56	Correct	137 ms	17092 KB	Output is correct
57	Correct	1 ms	320 KB	Output is correct
58	Correct	52 ms	4624 KB	Output is correct
59	Correct	53 ms	4608 KB	Output is correct
60	Correct	595 ms	33628 KB	Output is correct
61	Correct	51 ms	4824 KB	Output is correct
62	Correct	54 ms	4804 KB	Output is correct
63	Correct	51 ms	4884 KB	Output is correct
64	Correct	56 ms	4832 KB	Output is correct
65	Correct	50 ms	4708 KB	Output is correct
66	Correct	56 ms	4764 KB	Output is correct
67	Correct	55 ms	4804 KB	Output is correct
68	Correct	45 ms	4740 KB	Output is correct
69	Correct	54 ms	4672 KB	Output is correct
70	Correct	556 ms	33512 KB	Output is correct
71	Correct	55 ms	4728 KB	Output is correct
72	Correct	454 ms	33208 KB	Output is correct
73	Correct	478 ms	33396 KB	Output is correct
74	Correct	0 ms	212 KB	Output is correct
75	Correct	1 ms	212 KB	Output is correct
76	Correct	0 ms	212 KB	Output is correct
77	Correct	1 ms	212 KB	Output is correct
78	Correct	1 ms	320 KB	Output is correct
79	Correct	5 ms	1348 KB	Output is correct
80	Correct	681 ms	48088 KB	Output is correct
81	Correct	600 ms	47956 KB	Output is correct
82	Correct	573 ms	44108 KB	Output is correct
83	Correct	552 ms	44068 KB	Output is correct
84	Correct	581 ms	51652 KB	Output is correct
85	Correct	569 ms	48964 KB	Output is correct
86	Correct	134 ms	26708 KB	Output is correct
87	Correct	0 ms	212 KB	Output is correct

Submission #684825

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