Submission #476636

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
476636	2021-09-27T20:32:19 Z	thiago_bastos	Strange Device (APIO19_strange_device)	C++17	100 / 100	778 ms	46640 KB

strange_device

#include "bits/stdc++.h"
 
using namespace std;
 
using i64 = long long;
using u64 = unsigned long long;
using i32 = int;
using u32 = unsigned;
using i16 = short;
using u16 = unsigned short;
using ld = long double;
using ii = pair<int, int>;

void solve() {
/*
	t1 < t2
	
	t2 = t1 + Bk
	
	t1 + t1 / B = t1 + Bk + (t1 + Bk) / B mod A
	
	t1 / B = Bk + (t1 + Bk) / B mod A
	
	t1 / B = Bk + t1 / B + k mod A
	
	0 = Bk + k mod A
	
	0 = k(B + 1) mod A
	
	C = AB/gcd(A, B + 1)
	
	t2 = t1 + Ck'
	
	t2 = t1 mod C
*/

	int n;
	i64 A, B;
	
	cin >> n >> A >> B;
	
	__int128 C = (__int128)A * B / gcd(A, B + 1);
	
	vector<pair<i64, int>> sweep;
	
	for(int i = 0; i < n; ++i) {
		i64 l, r;
		cin >> l >> r;
		
		if(r - l + 1 >= C) {
			sweep.push_back({0, 1});
			sweep.push_back({C, -1});
			continue;
		}
		
		i64 L = l % C, R = r % C;

		if(L <= R) {
			sweep.push_back({L, 1});
			sweep.push_back({R + 1, -1});
		} else {
			sweep.push_back({L, 1});
			sweep.push_back({C, -1});
			sweep.push_back({0, 1});
			sweep.push_back({R + 1, -1});
		}
	}
	
	sort(sweep.begin(), sweep.end());
	
	i64 ans = 0;
	int abertos = 0;
	
	for(int i = 0; i < (int)size(sweep); ++i) {
		auto [x, type] = sweep[i];
		if(abertos) ans += x - sweep[i - 1].first;
		abertos += type;
	}
	
	cout << ans << '\n';
}

int main() {
	ios_base :: sync_with_stdio(false);
	cin.tie(0);
	int t = 1;
	//cin >> t;
	while(t--) solve();
 	return 0;
}

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	1232 KB	Output is correct
3	Correct	6 ms	1232 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	1 ms	204 KB	Output is correct
8	Correct	0 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	312 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	204 KB	Output is correct
16	Correct	6 ms	1232 KB	Output is correct
17	Correct	61 ms	7212 KB	Output is correct
18	Correct	0 ms	204 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	0 ms	204 KB	Output is correct
3	Correct	0 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	0 ms	204 KB	Output is correct
2	Correct	1 ms	332 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	391 ms	33816 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	562 ms	44136 KB	Output is correct
3	Correct	550 ms	33764 KB	Output is correct
4	Correct	574 ms	34136 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	562 ms	44136 KB	Output is correct
3	Correct	550 ms	33764 KB	Output is correct
4	Correct	574 ms	34136 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	604 ms	34308 KB	Output is correct
7	Correct	539 ms	34180 KB	Output is correct
8	Correct	570 ms	34068 KB	Output is correct
9	Correct	651 ms	34028 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	562 ms	44136 KB	Output is correct
3	Correct	550 ms	33764 KB	Output is correct
4	Correct	574 ms	34136 KB	Output is correct
5	Correct	0 ms	204 KB	Output is correct
6	Correct	53 ms	7232 KB	Output is correct
7	Correct	58 ms	7248 KB	Output is correct
8	Correct	55 ms	7188 KB	Output is correct
9	Correct	53 ms	7236 KB	Output is correct
10	Correct	55 ms	7204 KB	Output is correct
11	Correct	59 ms	7260 KB	Output is correct
12	Correct	52 ms	7276 KB	Output is correct
13	Correct	58 ms	7284 KB	Output is correct
14	Correct	52 ms	7236 KB	Output is correct
15	Correct	63 ms	7280 KB	Output is correct
16	Correct	60 ms	7168 KB	Output is correct
17	Correct	55 ms	7224 KB	Output is correct
18	Correct	560 ms	34148 KB	Output is correct
19	Correct	539 ms	34016 KB	Output is correct
20	Correct	648 ms	34388 KB	Output is correct
21	Correct	61 ms	7224 KB	Output is correct
22	Correct	47 ms	7220 KB	Output is correct
23	Correct	188 ms	26684 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	204 KB	Output is correct
2	Correct	64 ms	7240 KB	Output is correct
3	Correct	64 ms	7200 KB	Output is correct
4	Correct	716 ms	34440 KB	Output is correct
5	Correct	57 ms	7228 KB	Output is correct
6	Correct	58 ms	7180 KB	Output is correct
7	Correct	64 ms	7244 KB	Output is correct
8	Correct	60 ms	7192 KB	Output is correct
9	Correct	63 ms	7228 KB	Output is correct
10	Correct	62 ms	7284 KB	Output is correct
11	Correct	60 ms	7208 KB	Output is correct
12	Correct	53 ms	7248 KB	Output is correct
13	Correct	66 ms	7220 KB	Output is correct
14	Correct	704 ms	34500 KB	Output is correct
15	Correct	66 ms	7244 KB	Output is correct
16	Correct	554 ms	34392 KB	Output is correct
17	Correct	554 ms	34576 KB	Output is correct
18	Correct	0 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	1232 KB	Output is correct
3	Correct	6 ms	1232 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	1 ms	204 KB	Output is correct
8	Correct	0 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	312 KB	Output is correct
13	Correct	1 ms	204 KB	Output is correct
14	Correct	0 ms	204 KB	Output is correct
15	Correct	0 ms	204 KB	Output is correct
16	Correct	6 ms	1232 KB	Output is correct
17	Correct	61 ms	7212 KB	Output is correct
18	Correct	0 ms	204 KB	Output is correct
19	Correct	1 ms	204 KB	Output is correct
20	Correct	0 ms	204 KB	Output is correct
21	Correct	0 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	0 ms	204 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	391 ms	33816 KB	Output is correct
29	Correct	0 ms	204 KB	Output is correct
30	Correct	562 ms	44136 KB	Output is correct
31	Correct	550 ms	33764 KB	Output is correct
32	Correct	574 ms	34136 KB	Output is correct
33	Correct	0 ms	204 KB	Output is correct
34	Correct	604 ms	34308 KB	Output is correct
35	Correct	539 ms	34180 KB	Output is correct
36	Correct	570 ms	34068 KB	Output is correct
37	Correct	651 ms	34028 KB	Output is correct
38	Correct	0 ms	204 KB	Output is correct
39	Correct	53 ms	7232 KB	Output is correct
40	Correct	58 ms	7248 KB	Output is correct
41	Correct	55 ms	7188 KB	Output is correct
42	Correct	53 ms	7236 KB	Output is correct
43	Correct	55 ms	7204 KB	Output is correct
44	Correct	59 ms	7260 KB	Output is correct
45	Correct	52 ms	7276 KB	Output is correct
46	Correct	58 ms	7284 KB	Output is correct
47	Correct	52 ms	7236 KB	Output is correct
48	Correct	63 ms	7280 KB	Output is correct
49	Correct	60 ms	7168 KB	Output is correct
50	Correct	55 ms	7224 KB	Output is correct
51	Correct	560 ms	34148 KB	Output is correct
52	Correct	539 ms	34016 KB	Output is correct
53	Correct	648 ms	34388 KB	Output is correct
54	Correct	61 ms	7224 KB	Output is correct
55	Correct	47 ms	7220 KB	Output is correct
56	Correct	188 ms	26684 KB	Output is correct
57	Correct	0 ms	204 KB	Output is correct
58	Correct	64 ms	7240 KB	Output is correct
59	Correct	64 ms	7200 KB	Output is correct
60	Correct	716 ms	34440 KB	Output is correct
61	Correct	57 ms	7228 KB	Output is correct
62	Correct	58 ms	7180 KB	Output is correct
63	Correct	64 ms	7244 KB	Output is correct
64	Correct	60 ms	7192 KB	Output is correct
65	Correct	63 ms	7228 KB	Output is correct
66	Correct	62 ms	7284 KB	Output is correct
67	Correct	60 ms	7208 KB	Output is correct
68	Correct	53 ms	7248 KB	Output is correct
69	Correct	66 ms	7220 KB	Output is correct
70	Correct	704 ms	34500 KB	Output is correct
71	Correct	66 ms	7244 KB	Output is correct
72	Correct	554 ms	34392 KB	Output is correct
73	Correct	554 ms	34576 KB	Output is correct
74	Correct	0 ms	204 KB	Output is correct
75	Correct	0 ms	204 KB	Output is correct
76	Correct	0 ms	312 KB	Output is correct
77	Correct	0 ms	204 KB	Output is correct
78	Correct	0 ms	204 KB	Output is correct
79	Correct	5 ms	1224 KB	Output is correct
80	Correct	778 ms	45056 KB	Output is correct
81	Correct	743 ms	44992 KB	Output is correct
82	Correct	673 ms	45080 KB	Output is correct
83	Correct	653 ms	45056 KB	Output is correct
84	Correct	676 ms	46432 KB	Output is correct
85	Correct	631 ms	46640 KB	Output is correct
86	Correct	146 ms	26660 KB	Output is correct
87	Correct	0 ms	204 KB	Output is correct

Submission #476636

Compilation message