Submission #560987

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
560987	2022-05-12T07:12:31 Z	hollwo_pelw	Strange Device (APIO19_strange_device)	C++17	100 / 100	518 ms	41272 KB

strange_device

#include <bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// #include <ext/pb_ds/trie_policy.hpp>
// #include <ext/rope>

using namespace std;
// using namespace __gnu_cxx;
// using namespace __gnu_pbds;

void Hollwo_Pelw();

signed main(){
#ifndef hollwo_pelw_local
	if (fopen(".inp", "r"))
		assert(freopen(".inp", "r", stdin)), assert(freopen(".out", "w", stdout));
#else
	auto start = chrono::steady_clock::now();
#endif
	cin.tie(0), cout.tie(0) -> sync_with_stdio(0);
	int testcases = 1;
	// cin >> testcases;
	for (int test = 1; test <= testcases; test++){
		// cout << "Case #" << test << ": ";
		Hollwo_Pelw();
	}
#ifdef hollwo_pelw_local
	auto end = chrono::steady_clock::now();
	cout << "\nExcution time : " << chrono::duration_cast<chrono::milliseconds> (end - start).count() << "[ms]" << endl;
#endif
}

/*
t = z * b + y
0 <= y < b
x = (z * (b + 1) + y) % a

y1 == y2
((z1 - z2) * (b + 1)) % a == 0

b = 1e18
b >= 1e12 -> z <= 1e6

*/

#define int long long
const int N = 1e6 + 5, inf = (int) 1e18 + 7;

int n, a, b, l[N], r[N];

void Hollwo_Pelw(){
	cin >> n >> a >> b;
	int f = a / __gcd(a, b + 1), p = inf / f >= b ? f * b : inf;

	vector<pair<int, int>> v;

	for (int i = 1, l, r; i <= n; i++) {
		cin >> l >> r;
		
		if (r - l + 1 >= p)
			return cout << p, (void) 0;

		l %= p, r %= p;
		if (l > r) {
			v.emplace_back(l, p - 1);
			v.emplace_back(0, r);
		} else {
			v.emplace_back(l, r);
		}
	}

	sort(v.begin(), v.end());
	
	int res = 0, curl = 0, curr = -1;
	for (auto [l, r] : v) {
		if (curl > r || l > curr) {
			res += curr - curl + 1;
			curl = l, curr = r;
		}
		curl = min(curl, l), curr = max(curr, r);
	}

	res += curr - curl + 1;

	cout << res << '\n';
}

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	984 KB	Output is correct
3	Correct	6 ms	996 KB	Output is correct
4	Correct	1 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	2 ms	384 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	328 KB	Output is correct
13	Correct	1 ms	284 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	324 KB	Output is correct
16	Correct	5 ms	1064 KB	Output is correct
17	Correct	51 ms	5696 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	212 KB	Output is correct
2	Correct	1 ms	328 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	324 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	340 KB	Output is correct
3	Correct	1 ms	336 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	302 ms	41272 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	473 ms	27232 KB	Output is correct
3	Correct	431 ms	31248 KB	Output is correct
4	Correct	456 ms	35360 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	473 ms	27232 KB	Output is correct
3	Correct	431 ms	31248 KB	Output is correct
4	Correct	456 ms	35360 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	477 ms	35316 KB	Output is correct
7	Correct	442 ms	35400 KB	Output is correct
8	Correct	452 ms	35232 KB	Output is correct
9	Correct	513 ms	35296 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	473 ms	27232 KB	Output is correct
3	Correct	431 ms	31248 KB	Output is correct
4	Correct	456 ms	35360 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	44 ms	5832 KB	Output is correct
7	Correct	49 ms	5748 KB	Output is correct
8	Correct	60 ms	5828 KB	Output is correct
9	Correct	41 ms	5636 KB	Output is correct
10	Correct	43 ms	5788 KB	Output is correct
11	Correct	56 ms	5628 KB	Output is correct
12	Correct	58 ms	5620 KB	Output is correct
13	Correct	58 ms	5724 KB	Output is correct
14	Correct	49 ms	5668 KB	Output is correct
15	Correct	43 ms	5700 KB	Output is correct
16	Correct	48 ms	5708 KB	Output is correct
17	Correct	53 ms	5680 KB	Output is correct
18	Correct	451 ms	35328 KB	Output is correct
19	Correct	458 ms	35316 KB	Output is correct
20	Correct	506 ms	35216 KB	Output is correct
21	Correct	58 ms	5624 KB	Output is correct
22	Correct	37 ms	5696 KB	Output is correct
23	Correct	131 ms	18484 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	55 ms	5608 KB	Output is correct
3	Correct	57 ms	5672 KB	Output is correct
4	Correct	474 ms	31084 KB	Output is correct
5	Correct	47 ms	5736 KB	Output is correct
6	Correct	54 ms	5716 KB	Output is correct
7	Correct	43 ms	5680 KB	Output is correct
8	Correct	46 ms	5696 KB	Output is correct
9	Correct	42 ms	5684 KB	Output is correct
10	Correct	45 ms	5660 KB	Output is correct
11	Correct	54 ms	5644 KB	Output is correct
12	Correct	39 ms	5668 KB	Output is correct
13	Correct	43 ms	5692 KB	Output is correct
14	Correct	470 ms	35424 KB	Output is correct
15	Correct	48 ms	5700 KB	Output is correct
16	Correct	422 ms	35300 KB	Output is correct
17	Correct	475 ms	35204 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	984 KB	Output is correct
3	Correct	6 ms	996 KB	Output is correct
4	Correct	1 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	2 ms	384 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	328 KB	Output is correct
13	Correct	1 ms	284 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	324 KB	Output is correct
16	Correct	5 ms	1064 KB	Output is correct
17	Correct	51 ms	5696 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	328 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	324 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	340 KB	Output is correct
26	Correct	1 ms	336 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	302 ms	41272 KB	Output is correct
29	Correct	1 ms	212 KB	Output is correct
30	Correct	473 ms	27232 KB	Output is correct
31	Correct	431 ms	31248 KB	Output is correct
32	Correct	456 ms	35360 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	477 ms	35316 KB	Output is correct
35	Correct	442 ms	35400 KB	Output is correct
36	Correct	452 ms	35232 KB	Output is correct
37	Correct	513 ms	35296 KB	Output is correct
38	Correct	1 ms	212 KB	Output is correct
39	Correct	44 ms	5832 KB	Output is correct
40	Correct	49 ms	5748 KB	Output is correct
41	Correct	60 ms	5828 KB	Output is correct
42	Correct	41 ms	5636 KB	Output is correct
43	Correct	43 ms	5788 KB	Output is correct
44	Correct	56 ms	5628 KB	Output is correct
45	Correct	58 ms	5620 KB	Output is correct
46	Correct	58 ms	5724 KB	Output is correct
47	Correct	49 ms	5668 KB	Output is correct
48	Correct	43 ms	5700 KB	Output is correct
49	Correct	48 ms	5708 KB	Output is correct
50	Correct	53 ms	5680 KB	Output is correct
51	Correct	451 ms	35328 KB	Output is correct
52	Correct	458 ms	35316 KB	Output is correct
53	Correct	506 ms	35216 KB	Output is correct
54	Correct	58 ms	5624 KB	Output is correct
55	Correct	37 ms	5696 KB	Output is correct
56	Correct	131 ms	18484 KB	Output is correct
57	Correct	1 ms	212 KB	Output is correct
58	Correct	55 ms	5608 KB	Output is correct
59	Correct	57 ms	5672 KB	Output is correct
60	Correct	474 ms	31084 KB	Output is correct
61	Correct	47 ms	5736 KB	Output is correct
62	Correct	54 ms	5716 KB	Output is correct
63	Correct	43 ms	5680 KB	Output is correct
64	Correct	46 ms	5696 KB	Output is correct
65	Correct	42 ms	5684 KB	Output is correct
66	Correct	45 ms	5660 KB	Output is correct
67	Correct	54 ms	5644 KB	Output is correct
68	Correct	39 ms	5668 KB	Output is correct
69	Correct	43 ms	5692 KB	Output is correct
70	Correct	470 ms	35424 KB	Output is correct
71	Correct	48 ms	5700 KB	Output is correct
72	Correct	422 ms	35300 KB	Output is correct
73	Correct	475 ms	35204 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	212 KB	Output is correct
77	Correct	1 ms	212 KB	Output is correct
78	Correct	1 ms	212 KB	Output is correct
79	Correct	6 ms	1108 KB	Output is correct
80	Correct	518 ms	35288 KB	Output is correct
81	Correct	501 ms	35220 KB	Output is correct
82	Correct	467 ms	35252 KB	Output is correct
83	Correct	475 ms	35152 KB	Output is correct
84	Correct	472 ms	35180 KB	Output is correct
85	Correct	493 ms	35124 KB	Output is correct
86	Correct	133 ms	18444 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #560987

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