Submission #367993

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
367993	2021-02-19T08:38:25 Z	grt	Strange Device (APIO19_strange_device)	C++17	100 / 100	776 ms	42688 KB

strange_device

#include <bits/stdc++.h>
#define PB push_back
#define ST first
#define ND second

//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
//using namespace __gnu_pbds;
//typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set;

using namespace std;
using ll = long long;
using pi = pair<int, int>;
using vi = vector<int>;

const ll INF = 1e18 + 10;
int n;
ll a, b;
vector<pair<ll,int>>p;

ll mul(ll aa, ll ba) {
	if(ba == 0) return 0LL;
	if(ba & 1) {
		return min(INF, 2 * mul(aa, ba/2) + aa);
	} else {
		return min(INF, 2 * mul(aa, ba/2));
	}
}


int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> a >> b;
	ll g = __gcd(a, b + 1);
	a /= g;
	ll mod = mul(a, b);
	
	for(int i = 1; i <= n; ++i) {
		ll l, r;
		cin >> l >> r;
		if(r - l + 1 >= mod) {
			p.PB({0,1});
			p.PB({mod,-1});
		} else {
			if(l % (mod) <= r % (mod)) {
				p.PB({l % (mod), 1});
				p.PB({(r % (mod)) + 1, -1});
			} else {
				p.PB({(l % (mod)), 1});
				p.PB({mod, -1});
				p.PB({0, 1});
				p.PB({r % (mod) + 1, -1});
			}
		}
	}
	sort(p.begin(), p.end());
	ll ans = 0;
	int cnt = 0;
	ll pr = 0;
	for(auto it : p) {
		if(cnt > 0) ans += it.ST - pr;
		cnt += it.ND;
		pr = it.ST;
	}
	cout << ans;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	8 ms	1392 KB	Output is correct
3	Correct	7 ms	1392 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	6 ms	1392 KB	Output is correct
17	Correct	68 ms	7268 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	512 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	406 ms	33596 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	599 ms	41084 KB	Output is correct
3	Correct	616 ms	41276 KB	Output is correct
4	Correct	593 ms	41180 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	599 ms	41084 KB	Output is correct
3	Correct	616 ms	41276 KB	Output is correct
4	Correct	593 ms	41180 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	606 ms	41184 KB	Output is correct
7	Correct	586 ms	41336 KB	Output is correct
8	Correct	616 ms	33596 KB	Output is correct
9	Correct	698 ms	33596 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	599 ms	41084 KB	Output is correct
3	Correct	616 ms	41276 KB	Output is correct
4	Correct	593 ms	41180 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	60 ms	7344 KB	Output is correct
7	Correct	62 ms	7268 KB	Output is correct
8	Correct	58 ms	7268 KB	Output is correct
9	Correct	60 ms	7268 KB	Output is correct
10	Correct	58 ms	7268 KB	Output is correct
11	Correct	59 ms	7268 KB	Output is correct
12	Correct	57 ms	7268 KB	Output is correct
13	Correct	63 ms	7268 KB	Output is correct
14	Correct	57 ms	7268 KB	Output is correct
15	Correct	66 ms	7268 KB	Output is correct
16	Correct	65 ms	7268 KB	Output is correct
17	Correct	69 ms	7268 KB	Output is correct
18	Correct	599 ms	33596 KB	Output is correct
19	Correct	571 ms	33596 KB	Output is correct
20	Correct	715 ms	39612 KB	Output is correct
21	Correct	66 ms	7452 KB	Output is correct
22	Correct	52 ms	7268 KB	Output is correct
23	Correct	161 ms	22992 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	62 ms	7268 KB	Output is correct
3	Correct	64 ms	7268 KB	Output is correct
4	Correct	732 ms	38716 KB	Output is correct
5	Correct	65 ms	7308 KB	Output is correct
6	Correct	66 ms	7412 KB	Output is correct
7	Correct	63 ms	7268 KB	Output is correct
8	Correct	68 ms	7392 KB	Output is correct
9	Correct	62 ms	7268 KB	Output is correct
10	Correct	68 ms	7268 KB	Output is correct
11	Correct	65 ms	7468 KB	Output is correct
12	Correct	67 ms	7396 KB	Output is correct
13	Correct	66 ms	7268 KB	Output is correct
14	Correct	699 ms	38192 KB	Output is correct
15	Correct	72 ms	7388 KB	Output is correct
16	Correct	589 ms	38232 KB	Output is correct
17	Correct	587 ms	38352 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	8 ms	1392 KB	Output is correct
3	Correct	7 ms	1392 KB	Output is correct
4	Correct	1 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	364 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	364 KB	Output is correct
13	Correct	1 ms	364 KB	Output is correct
14	Correct	1 ms	364 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	6 ms	1392 KB	Output is correct
17	Correct	68 ms	7268 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	364 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	364 KB	Output is correct
22	Correct	1 ms	364 KB	Output is correct
23	Correct	1 ms	364 KB	Output is correct
24	Correct	1 ms	512 KB	Output is correct
25	Correct	1 ms	492 KB	Output is correct
26	Correct	1 ms	492 KB	Output is correct
27	Correct	1 ms	492 KB	Output is correct
28	Correct	406 ms	33596 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	599 ms	41084 KB	Output is correct
31	Correct	616 ms	41276 KB	Output is correct
32	Correct	593 ms	41180 KB	Output is correct
33	Correct	1 ms	364 KB	Output is correct
34	Correct	606 ms	41184 KB	Output is correct
35	Correct	586 ms	41336 KB	Output is correct
36	Correct	616 ms	33596 KB	Output is correct
37	Correct	698 ms	33596 KB	Output is correct
38	Correct	1 ms	364 KB	Output is correct
39	Correct	60 ms	7344 KB	Output is correct
40	Correct	62 ms	7268 KB	Output is correct
41	Correct	58 ms	7268 KB	Output is correct
42	Correct	60 ms	7268 KB	Output is correct
43	Correct	58 ms	7268 KB	Output is correct
44	Correct	59 ms	7268 KB	Output is correct
45	Correct	57 ms	7268 KB	Output is correct
46	Correct	63 ms	7268 KB	Output is correct
47	Correct	57 ms	7268 KB	Output is correct
48	Correct	66 ms	7268 KB	Output is correct
49	Correct	65 ms	7268 KB	Output is correct
50	Correct	69 ms	7268 KB	Output is correct
51	Correct	599 ms	33596 KB	Output is correct
52	Correct	571 ms	33596 KB	Output is correct
53	Correct	715 ms	39612 KB	Output is correct
54	Correct	66 ms	7452 KB	Output is correct
55	Correct	52 ms	7268 KB	Output is correct
56	Correct	161 ms	22992 KB	Output is correct
57	Correct	1 ms	364 KB	Output is correct
58	Correct	62 ms	7268 KB	Output is correct
59	Correct	64 ms	7268 KB	Output is correct
60	Correct	732 ms	38716 KB	Output is correct
61	Correct	65 ms	7308 KB	Output is correct
62	Correct	66 ms	7412 KB	Output is correct
63	Correct	63 ms	7268 KB	Output is correct
64	Correct	68 ms	7392 KB	Output is correct
65	Correct	62 ms	7268 KB	Output is correct
66	Correct	68 ms	7268 KB	Output is correct
67	Correct	65 ms	7468 KB	Output is correct
68	Correct	67 ms	7396 KB	Output is correct
69	Correct	66 ms	7268 KB	Output is correct
70	Correct	699 ms	38192 KB	Output is correct
71	Correct	72 ms	7388 KB	Output is correct
72	Correct	589 ms	38232 KB	Output is correct
73	Correct	587 ms	38352 KB	Output is correct
74	Correct	1 ms	364 KB	Output is correct
75	Correct	1 ms	364 KB	Output is correct
76	Correct	1 ms	364 KB	Output is correct
77	Correct	1 ms	364 KB	Output is correct
78	Correct	1 ms	364 KB	Output is correct
79	Correct	6 ms	1392 KB	Output is correct
80	Correct	732 ms	42688 KB	Output is correct
81	Correct	776 ms	42480 KB	Output is correct
82	Correct	684 ms	42584 KB	Output is correct
83	Correct	687 ms	42592 KB	Output is correct
84	Correct	708 ms	42504 KB	Output is correct
85	Correct	697 ms	42520 KB	Output is correct
86	Correct	167 ms	26704 KB	Output is correct
87	Correct	1 ms	364 KB	Output is correct

Submission #367993

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