Submission #819973

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
819973	2023-08-10T16:42:21 Z	Alan	Strange Device (APIO19_strange_device)	C++17	100 / 100	1544 ms	100096 KB

strange_device

#include <bits/stdc++.h>
using namespace std;
using ll = long long;

const ll inf = 1e18;

void add (set<pair<ll, ll>>& st, ll l, ll r) {
	auto it = st.lower_bound({l, 0}), tmp = it;
	if (it != st.begin() && (--tmp)->second >= l) {
		l = tmp->first;
		r = max(r, tmp->second);
		st.erase(tmp);
	}
	while (it != st.end()) {
		if (r >= it->first) {
			r = max(r, it->second);
			it = st.erase(it);
		} else break;
	}
	st.insert({l, r});
}

int main () {
	ll n, a, b;
	cin >> n >> a >> b;
	ll mod;
	if (a / gcd(a, b+1) > inf / b) mod = inf;
	else mod = a / gcd(a, b+1) * b;
	set<pair<ll, ll>> st;
	while (n--) {
		ll l, r;
		cin >> l >> r;
		if (r-l+1 >= mod) {
			cout << mod << '\n';
			return 0;
		}
		if (l % mod > r % mod) {
			add(st, 0, r % mod);
			add(st, l % mod, mod-1);
		} else add(st, l % mod, r % mod);
	}
	ll ans = 0;
	for (auto& [l, r] : st) ans += r-l+1;
	cout << ans << '\n';
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	12 ms	868 KB	Output is correct
3	Correct	11 ms	1200 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	296 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	300 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	11 ms	1304 KB	Output is correct
17	Correct	114 ms	10200 KB	Output is correct
18	Correct	1 ms	304 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 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	2 ms	212 KB	Output is correct
3	Correct	2 ms	312 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	744 ms	25404 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1244 ms	62988 KB	Output is correct
3	Correct	1348 ms	62796 KB	Output is correct
4	Correct	1241 ms	62784 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1244 ms	62988 KB	Output is correct
3	Correct	1348 ms	62796 KB	Output is correct
4	Correct	1241 ms	62784 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1196 ms	62852 KB	Output is correct
7	Correct	1173 ms	62776 KB	Output is correct
8	Correct	1231 ms	62796 KB	Output is correct
9	Correct	1381 ms	62884 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1244 ms	62988 KB	Output is correct
3	Correct	1348 ms	62796 KB	Output is correct
4	Correct	1241 ms	62784 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	108 ms	6496 KB	Output is correct
7	Correct	108 ms	6420 KB	Output is correct
8	Correct	123 ms	6476 KB	Output is correct
9	Correct	114 ms	6432 KB	Output is correct
10	Correct	114 ms	6468 KB	Output is correct
11	Correct	110 ms	6484 KB	Output is correct
12	Correct	112 ms	6528 KB	Output is correct
13	Correct	120 ms	6476 KB	Output is correct
14	Correct	109 ms	6428 KB	Output is correct
15	Correct	117 ms	6476 KB	Output is correct
16	Correct	134 ms	6488 KB	Output is correct
17	Correct	120 ms	10280 KB	Output is correct
18	Correct	1198 ms	100068 KB	Output is correct
19	Correct	1228 ms	100064 KB	Output is correct
20	Correct	1280 ms	100096 KB	Output is correct
21	Correct	113 ms	10156 KB	Output is correct
22	Correct	118 ms	10252 KB	Output is correct
23	Correct	359 ms	12816 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	118 ms	6468 KB	Output is correct
3	Correct	116 ms	6460 KB	Output is correct
4	Correct	1287 ms	62904 KB	Output is correct
5	Correct	135 ms	6452 KB	Output is correct
6	Correct	120 ms	6420 KB	Output is correct
7	Correct	128 ms	6472 KB	Output is correct
8	Correct	123 ms	6512 KB	Output is correct
9	Correct	132 ms	6552 KB	Output is correct
10	Correct	139 ms	6484 KB	Output is correct
11	Correct	122 ms	6528 KB	Output is correct
12	Correct	127 ms	6476 KB	Output is correct
13	Correct	121 ms	6540 KB	Output is correct
14	Correct	1261 ms	63008 KB	Output is correct
15	Correct	108 ms	5784 KB	Output is correct
16	Correct	1178 ms	100024 KB	Output is correct
17	Correct	1271 ms	100068 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	0 ms	212 KB	Output is correct
2	Correct	12 ms	868 KB	Output is correct
3	Correct	11 ms	1200 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	296 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	300 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	11 ms	1304 KB	Output is correct
17	Correct	114 ms	10200 KB	Output is correct
18	Correct	1 ms	304 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	2 ms	212 KB	Output is correct
26	Correct	2 ms	312 KB	Output is correct
27	Correct	1 ms	340 KB	Output is correct
28	Correct	744 ms	25404 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	1244 ms	62988 KB	Output is correct
31	Correct	1348 ms	62796 KB	Output is correct
32	Correct	1241 ms	62784 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	1196 ms	62852 KB	Output is correct
35	Correct	1173 ms	62776 KB	Output is correct
36	Correct	1231 ms	62796 KB	Output is correct
37	Correct	1381 ms	62884 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	108 ms	6496 KB	Output is correct
40	Correct	108 ms	6420 KB	Output is correct
41	Correct	123 ms	6476 KB	Output is correct
42	Correct	114 ms	6432 KB	Output is correct
43	Correct	114 ms	6468 KB	Output is correct
44	Correct	110 ms	6484 KB	Output is correct
45	Correct	112 ms	6528 KB	Output is correct
46	Correct	120 ms	6476 KB	Output is correct
47	Correct	109 ms	6428 KB	Output is correct
48	Correct	117 ms	6476 KB	Output is correct
49	Correct	134 ms	6488 KB	Output is correct
50	Correct	120 ms	10280 KB	Output is correct
51	Correct	1198 ms	100068 KB	Output is correct
52	Correct	1228 ms	100064 KB	Output is correct
53	Correct	1280 ms	100096 KB	Output is correct
54	Correct	113 ms	10156 KB	Output is correct
55	Correct	118 ms	10252 KB	Output is correct
56	Correct	359 ms	12816 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	118 ms	6468 KB	Output is correct
59	Correct	116 ms	6460 KB	Output is correct
60	Correct	1287 ms	62904 KB	Output is correct
61	Correct	135 ms	6452 KB	Output is correct
62	Correct	120 ms	6420 KB	Output is correct
63	Correct	128 ms	6472 KB	Output is correct
64	Correct	123 ms	6512 KB	Output is correct
65	Correct	132 ms	6552 KB	Output is correct
66	Correct	139 ms	6484 KB	Output is correct
67	Correct	122 ms	6528 KB	Output is correct
68	Correct	127 ms	6476 KB	Output is correct
69	Correct	121 ms	6540 KB	Output is correct
70	Correct	1261 ms	63008 KB	Output is correct
71	Correct	108 ms	5784 KB	Output is correct
72	Correct	1178 ms	100024 KB	Output is correct
73	Correct	1271 ms	100068 KB	Output is correct
74	Correct	1 ms	212 KB	Output is correct
75	Correct	0 ms	296 KB	Output is correct
76	Correct	1 ms	212 KB	Output is correct
77	Correct	0 ms	212 KB	Output is correct
78	Correct	0 ms	212 KB	Output is correct
79	Correct	18 ms	1236 KB	Output is correct
80	Correct	1544 ms	100052 KB	Output is correct
81	Correct	1228 ms	100028 KB	Output is correct
82	Correct	1336 ms	100016 KB	Output is correct
83	Correct	1299 ms	100052 KB	Output is correct
84	Correct	1351 ms	100044 KB	Output is correct
85	Correct	1243 ms	100096 KB	Output is correct
86	Correct	334 ms	12828 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #819973

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