Submission #519328

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
519328	2022-01-26T07:59:48 Z	tibinyte	Strange Device (APIO19_strange_device)	C++14	100 / 100	771 ms	64708 KB

strange_device

#include <bits/stdc++.h>
using namespace std;
bool will_overflow(long long a, long long b) {
	long long c = a * b;
	if (a != c / b) {
		return true;
	}
	return false;
}
long long gcd(long long a, long long b) {
	while (b) {
		long long c = a % b;
		a = b;
		b = c;
	}
	return a;
}
int main() {
	cin.tie(nullptr)->ios_base::sync_with_stdio(false);
	long long n, a, b;
	cin >> n >> a >> b;
	long long p = 0;
	if (log10((double)a / (double)gcd(b + 1, a)) + log10(b) >= 18) {
		p = 1e18 + 1;
	}
	else {
		p = a / gcd(a, b + 1) * b;
	}
	map<long long, long long> wh;
	auto update = [&](long long st, long long dr) {
		wh[st]++;
		wh[dr + 1]--;
	};
	wh[p - 1] = 0;
	wh[0] = 0;
	for (long long i = 1; i <= n; ++i) {
		long long st, dr;
		cin >> st >> dr;
		long long lg = (dr - st) + 1;
		st %= p;
		if (st + lg - 1 < p) {
			update(st, st + lg - 1);
		}
		else {
			update(st, p - 1);
			lg -= (p - st);
			st = 0;
			if (st + lg - 1 < p) {
				update(st, st + lg - 1);
			}
			else {
				cout << p << '\n';
				return 0;
			}
		}
	}
	long long ans = 0;
	long long s = 0;
	for (map<long long, long long>::iterator i = wh.begin(); i != prev(wh.end()); ++i) {
		s += i->second;
		long long st = i->first, dr = next(i)->first - 1;
		if (s) {
			ans += dr - st + 1;
		}
	}
	cout << ans;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	204 KB	Output is correct
2	Correct	6 ms	1200 KB	Output is correct
3	Correct	6 ms	1208 KB	Output is correct
4	Correct	1 ms	204 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	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 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	6 ms	1228 KB	Output is correct
17	Correct	74 ms	8404 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	308 KB	Output is correct
2	Correct	1 ms	204 KB	Output is correct
3	Correct	0 ms	204 KB	Output is correct
4	Correct	0 ms	204 KB	Output is correct
5	Correct	0 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	2 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	236 ms	1120 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	641 ms	63652 KB	Output is correct
3	Correct	694 ms	63608 KB	Output is correct
4	Correct	727 ms	63716 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	641 ms	63652 KB	Output is correct
3	Correct	694 ms	63608 KB	Output is correct
4	Correct	727 ms	63716 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	679 ms	63612 KB	Output is correct
7	Correct	692 ms	63672 KB	Output is correct
8	Correct	651 ms	63616 KB	Output is correct
9	Correct	731 ms	63572 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	641 ms	63652 KB	Output is correct
3	Correct	694 ms	63608 KB	Output is correct
4	Correct	727 ms	63716 KB	Output is correct
5	Correct	0 ms	308 KB	Output is correct
6	Correct	61 ms	8480 KB	Output is correct
7	Correct	56 ms	8516 KB	Output is correct
8	Correct	60 ms	8428 KB	Output is correct
9	Correct	80 ms	8436 KB	Output is correct
10	Correct	55 ms	8472 KB	Output is correct
11	Correct	61 ms	8468 KB	Output is correct
12	Correct	80 ms	8496 KB	Output is correct
13	Correct	72 ms	8452 KB	Output is correct
14	Correct	58 ms	8484 KB	Output is correct
15	Correct	72 ms	8500 KB	Output is correct
16	Correct	70 ms	8516 KB	Output is correct
17	Correct	69 ms	8456 KB	Output is correct
18	Correct	645 ms	63616 KB	Output is correct
19	Correct	691 ms	63492 KB	Output is correct
20	Correct	705 ms	63584 KB	Output is correct
21	Correct	61 ms	8516 KB	Output is correct
22	Correct	66 ms	8400 KB	Output is correct
23	Correct	112 ms	3296 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	67 ms	8516 KB	Output is correct
3	Correct	66 ms	8476 KB	Output is correct
4	Correct	730 ms	64708 KB	Output is correct
5	Correct	65 ms	8520 KB	Output is correct
6	Correct	65 ms	8420 KB	Output is correct
7	Correct	80 ms	8424 KB	Output is correct
8	Correct	78 ms	8492 KB	Output is correct
9	Correct	65 ms	8492 KB	Output is correct
10	Correct	61 ms	8428 KB	Output is correct
11	Correct	68 ms	8384 KB	Output is correct
12	Correct	67 ms	8240 KB	Output is correct
13	Correct	74 ms	8320 KB	Output is correct
14	Correct	741 ms	63888 KB	Output is correct
15	Correct	57 ms	8324 KB	Output is correct
16	Correct	660 ms	63948 KB	Output is correct
17	Correct	673 ms	63904 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	204 KB	Output is correct
2	Correct	6 ms	1200 KB	Output is correct
3	Correct	6 ms	1208 KB	Output is correct
4	Correct	1 ms	204 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	204 KB	Output is correct
10	Correct	1 ms	204 KB	Output is correct
11	Correct	0 ms	204 KB	Output is correct
12	Correct	0 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	6 ms	1228 KB	Output is correct
17	Correct	74 ms	8404 KB	Output is correct
18	Correct	1 ms	204 KB	Output is correct
19	Correct	1 ms	308 KB	Output is correct
20	Correct	1 ms	204 KB	Output is correct
21	Correct	0 ms	204 KB	Output is correct
22	Correct	0 ms	204 KB	Output is correct
23	Correct	0 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	2 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	236 ms	1120 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	641 ms	63652 KB	Output is correct
31	Correct	694 ms	63608 KB	Output is correct
32	Correct	727 ms	63716 KB	Output is correct
33	Correct	0 ms	204 KB	Output is correct
34	Correct	679 ms	63612 KB	Output is correct
35	Correct	692 ms	63672 KB	Output is correct
36	Correct	651 ms	63616 KB	Output is correct
37	Correct	731 ms	63572 KB	Output is correct
38	Correct	0 ms	308 KB	Output is correct
39	Correct	61 ms	8480 KB	Output is correct
40	Correct	56 ms	8516 KB	Output is correct
41	Correct	60 ms	8428 KB	Output is correct
42	Correct	80 ms	8436 KB	Output is correct
43	Correct	55 ms	8472 KB	Output is correct
44	Correct	61 ms	8468 KB	Output is correct
45	Correct	80 ms	8496 KB	Output is correct
46	Correct	72 ms	8452 KB	Output is correct
47	Correct	58 ms	8484 KB	Output is correct
48	Correct	72 ms	8500 KB	Output is correct
49	Correct	70 ms	8516 KB	Output is correct
50	Correct	69 ms	8456 KB	Output is correct
51	Correct	645 ms	63616 KB	Output is correct
52	Correct	691 ms	63492 KB	Output is correct
53	Correct	705 ms	63584 KB	Output is correct
54	Correct	61 ms	8516 KB	Output is correct
55	Correct	66 ms	8400 KB	Output is correct
56	Correct	112 ms	3296 KB	Output is correct
57	Correct	1 ms	204 KB	Output is correct
58	Correct	67 ms	8516 KB	Output is correct
59	Correct	66 ms	8476 KB	Output is correct
60	Correct	730 ms	64708 KB	Output is correct
61	Correct	65 ms	8520 KB	Output is correct
62	Correct	65 ms	8420 KB	Output is correct
63	Correct	80 ms	8424 KB	Output is correct
64	Correct	78 ms	8492 KB	Output is correct
65	Correct	65 ms	8492 KB	Output is correct
66	Correct	61 ms	8428 KB	Output is correct
67	Correct	68 ms	8384 KB	Output is correct
68	Correct	67 ms	8240 KB	Output is correct
69	Correct	74 ms	8320 KB	Output is correct
70	Correct	741 ms	63888 KB	Output is correct
71	Correct	57 ms	8324 KB	Output is correct
72	Correct	660 ms	63948 KB	Output is correct
73	Correct	673 ms	63904 KB	Output is correct
74	Correct	1 ms	204 KB	Output is correct
75	Correct	0 ms	204 KB	Output is correct
76	Correct	1 ms	256 KB	Output is correct
77	Correct	0 ms	204 KB	Output is correct
78	Correct	1 ms	296 KB	Output is correct
79	Correct	8 ms	1220 KB	Output is correct
80	Correct	771 ms	63936 KB	Output is correct
81	Correct	691 ms	64012 KB	Output is correct
82	Correct	712 ms	64008 KB	Output is correct
83	Correct	740 ms	64060 KB	Output is correct
84	Correct	723 ms	63944 KB	Output is correct
85	Correct	681 ms	63852 KB	Output is correct
86	Correct	115 ms	11524 KB	Output is correct
87	Correct	1 ms	204 KB	Output is correct

Submission #519328

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