Submission #527157

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
527157	2022-02-17T02:54:09 Z	Leonardo_Paes	Strange Device (APIO19_strange_device)	C++17	100 / 100	685 ms	79588 KB

strange_device

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pii;
#define f first
#define s second
// number x and x + (a / gcd(a, b+1) * b) are equal

ll gcd(ll a, ll b){
	if(b == 0) return a;
	return gcd(b, a%b);
}


const ll inf = 1e18;

int main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	int n;
	ll a, b;
	cin >> n >> a >> b;
	ll aux = a / (gcd(a, b+1));
	bool ok = (log2(aux) + log2(b) <= log2(inf));
	ll m = (ok ? aux * b : inf + 3);
	vector<pii> v;
	bool mx = 0;
	for(int i=0; i<n; i++){
		ll l, r;
		cin >> l >> r;
		if(r-l+1 > m) mx = 1;
		l = l % m, r = r % m;
		if(l <= r){
			v.push_back({l, r});
			v.push_back({r, inf + 5});
		}
		else{
			v.push_back({l, m-1});
			v.push_back({m-1, inf + 5});
			v.push_back({0, r});
			v.push_back({r, inf + 5});
		}
	}
	if(mx){
		cout << m << "\n";
		return 0;
	}
	multiset<ll> s;
	ll ans = 0;
	sort(v.begin(), v.end());
	for(pii x : v){
		ll l = x.f, r = x.s;
		//cout << l << " " << r << "\n";
		if(r == inf + 5){ // out
			s.erase(s.find(-l));
		}
		else{ // in
			if(s.empty()) ans += r-l+1;
			else{
				ll mxx = -(*s.begin());
				ans += max(0LL, r-mxx);
			}
			s.insert(-r);
		}
	}
	cout << ans << "\n";
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	304 KB	Output is correct
2	Correct	6 ms	1220 KB	Output is correct
3	Correct	6 ms	1256 KB	Output is correct
4	Correct	0 ms	308 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	312 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 ms	308 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	8 ms	1320 KB	Output is correct
17	Correct	62 ms	7216 KB	Output is correct
18	Correct	1 ms	312 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	1 ms	204 KB	Output is correct
4	Correct	1 ms	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	2 ms	332 KB	Output is correct
5	Correct	666 ms	79588 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	586 ms	35004 KB	Output is correct
3	Correct	588 ms	35008 KB	Output is correct
4	Correct	587 ms	35164 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	586 ms	35004 KB	Output is correct
3	Correct	588 ms	35008 KB	Output is correct
4	Correct	587 ms	35164 KB	Output is correct
5	Correct	0 ms	316 KB	Output is correct
6	Correct	582 ms	35172 KB	Output is correct
7	Correct	539 ms	35200 KB	Output is correct
8	Correct	581 ms	35204 KB	Output is correct
9	Correct	597 ms	35136 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	586 ms	35004 KB	Output is correct
3	Correct	588 ms	35008 KB	Output is correct
4	Correct	587 ms	35164 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	55 ms	7192 KB	Output is correct
7	Correct	77 ms	7272 KB	Output is correct
8	Correct	55 ms	7208 KB	Output is correct
9	Correct	54 ms	7220 KB	Output is correct
10	Correct	51 ms	7220 KB	Output is correct
11	Correct	67 ms	7168 KB	Output is correct
12	Correct	53 ms	7232 KB	Output is correct
13	Correct	63 ms	7256 KB	Output is correct
14	Correct	51 ms	7252 KB	Output is correct
15	Correct	59 ms	7212 KB	Output is correct
16	Correct	58 ms	7236 KB	Output is correct
17	Correct	63 ms	7256 KB	Output is correct
18	Correct	561 ms	37768 KB	Output is correct
19	Correct	550 ms	37776 KB	Output is correct
20	Correct	622 ms	37856 KB	Output is correct
21	Correct	71 ms	7264 KB	Output is correct
22	Correct	54 ms	7280 KB	Output is correct
23	Correct	248 ms	39372 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	58 ms	7252 KB	Output is correct
3	Correct	64 ms	7224 KB	Output is correct
4	Correct	630 ms	34776 KB	Output is correct
5	Correct	67 ms	7224 KB	Output is correct
6	Correct	58 ms	7220 KB	Output is correct
7	Correct	59 ms	7216 KB	Output is correct
8	Correct	58 ms	7268 KB	Output is correct
9	Correct	61 ms	7400 KB	Output is correct
10	Correct	64 ms	7232 KB	Output is correct
11	Correct	64 ms	7228 KB	Output is correct
12	Correct	50 ms	7224 KB	Output is correct
13	Correct	59 ms	7224 KB	Output is correct
14	Correct	659 ms	35292 KB	Output is correct
15	Correct	73 ms	7216 KB	Output is correct
16	Correct	510 ms	36700 KB	Output is correct
17	Correct	532 ms	36352 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	304 KB	Output is correct
2	Correct	6 ms	1220 KB	Output is correct
3	Correct	6 ms	1256 KB	Output is correct
4	Correct	0 ms	308 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	0 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 KB	Output is correct
9	Correct	1 ms	312 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	1 ms	308 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	1 ms	204 KB	Output is correct
15	Correct	1 ms	204 KB	Output is correct
16	Correct	8 ms	1320 KB	Output is correct
17	Correct	62 ms	7216 KB	Output is correct
18	Correct	1 ms	312 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	1 ms	204 KB	Output is correct
22	Correct	1 ms	204 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	204 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	324 KB	Output is correct
27	Correct	2 ms	332 KB	Output is correct
28	Correct	666 ms	79588 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	586 ms	35004 KB	Output is correct
31	Correct	588 ms	35008 KB	Output is correct
32	Correct	587 ms	35164 KB	Output is correct
33	Correct	0 ms	316 KB	Output is correct
34	Correct	582 ms	35172 KB	Output is correct
35	Correct	539 ms	35200 KB	Output is correct
36	Correct	581 ms	35204 KB	Output is correct
37	Correct	597 ms	35136 KB	Output is correct
38	Correct	1 ms	204 KB	Output is correct
39	Correct	55 ms	7192 KB	Output is correct
40	Correct	77 ms	7272 KB	Output is correct
41	Correct	55 ms	7208 KB	Output is correct
42	Correct	54 ms	7220 KB	Output is correct
43	Correct	51 ms	7220 KB	Output is correct
44	Correct	67 ms	7168 KB	Output is correct
45	Correct	53 ms	7232 KB	Output is correct
46	Correct	63 ms	7256 KB	Output is correct
47	Correct	51 ms	7252 KB	Output is correct
48	Correct	59 ms	7212 KB	Output is correct
49	Correct	58 ms	7236 KB	Output is correct
50	Correct	63 ms	7256 KB	Output is correct
51	Correct	561 ms	37768 KB	Output is correct
52	Correct	550 ms	37776 KB	Output is correct
53	Correct	622 ms	37856 KB	Output is correct
54	Correct	71 ms	7264 KB	Output is correct
55	Correct	54 ms	7280 KB	Output is correct
56	Correct	248 ms	39372 KB	Output is correct
57	Correct	1 ms	204 KB	Output is correct
58	Correct	58 ms	7252 KB	Output is correct
59	Correct	64 ms	7224 KB	Output is correct
60	Correct	630 ms	34776 KB	Output is correct
61	Correct	67 ms	7224 KB	Output is correct
62	Correct	58 ms	7220 KB	Output is correct
63	Correct	59 ms	7216 KB	Output is correct
64	Correct	58 ms	7268 KB	Output is correct
65	Correct	61 ms	7400 KB	Output is correct
66	Correct	64 ms	7232 KB	Output is correct
67	Correct	64 ms	7228 KB	Output is correct
68	Correct	50 ms	7224 KB	Output is correct
69	Correct	59 ms	7224 KB	Output is correct
70	Correct	659 ms	35292 KB	Output is correct
71	Correct	73 ms	7216 KB	Output is correct
72	Correct	510 ms	36700 KB	Output is correct
73	Correct	532 ms	36352 KB	Output is correct
74	Correct	1 ms	204 KB	Output is correct
75	Correct	1 ms	204 KB	Output is correct
76	Correct	0 ms	204 KB	Output is correct
77	Correct	0 ms	204 KB	Output is correct
78	Correct	1 ms	204 KB	Output is correct
79	Correct	7 ms	1280 KB	Output is correct
80	Correct	685 ms	36756 KB	Output is correct
81	Correct	638 ms	38364 KB	Output is correct
82	Correct	597 ms	38300 KB	Output is correct
83	Correct	626 ms	38288 KB	Output is correct
84	Correct	618 ms	38316 KB	Output is correct
85	Correct	609 ms	38268 KB	Output is correct
86	Correct	251 ms	39392 KB	Output is correct
87	Correct	1 ms	204 KB	Output is correct

Submission #527157

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