Submission #1044983

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1044983	2024-08-05T15:20:24 Z	vjudge1	Strange Device (APIO19_strange_device)	C++17	100 / 100	1217 ms	163084 KB

strange_device

#include <bits/stdc++.h>
#define pb push_back
// #define endl ("\n")
#define all(aa) aa.begin(), aa.end()
typedef long long ll;
using namespace std;

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

const ll inf = ll(1e18) + 1;

int main(){
	ll n, a, b;
	cin >> n >> a >> b;
	vector<pair<ll, ll>> v(n);
	ll mx = 0;
	for(int i = 0; i < n; i++){
		ll l, r;
		cin >> l >> r;
		v[i] = {l, r};
		mx = max(mx, r);
	}

	ll g = ggcd(a, b + 1);
	ll sade = a / g;
	ll mod;
	if(double(sade) * double(b) >= double(inf)){
		mod = inf;
	}
	else mod = sade * b;
	multiset<pair<ll, int>> s;
	for(int i = 0; i < n; i++){
		ll tl = v[i].first;
		ll tr = v[i].second;
		ll sub = tl / mod;
		tl -= sub * mod;
		tr -= sub * mod;
		if(tr - tl + 1 >= mod){
			cout << mod << endl;
			exit(0);
		}
		if(tr >= mod){
			s.insert({0, 0});
			s.insert({tr - mod, 1});
			s.insert({mod - 1, 1});
			s.insert({tl, 0});
		}
		else{
			s.insert({tl, 0});
			s.insert({tr, 1});
		}
	}

	ll ans = 0;
	int cnt = 0;
	ll beg = -1;
	for(auto it = s.begin(); it != s.end(); it++){
		if(it->second == 0 && cnt == 0){
			beg = it->first;
		}
		if(it->second == 0){
			cnt++;
		}
		if(it->second == 1 && cnt == 1){
			ans += it->first - beg + 1;
		}
		if(it->second == 1)
			cnt--;
	}
	cout << ans << endl;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	9 ms	2004 KB	Output is correct
3	Correct	9 ms	2124 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	8 ms	1628 KB	Output is correct
17	Correct	100 ms	15696 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	348 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	604 KB	Output is correct
3	Correct	1 ms	600 KB	Output is correct
4	Correct	3 ms	600 KB	Output is correct
5	Correct	976 ms	155744 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1143 ms	161956 KB	Output is correct
3	Correct	1116 ms	162820 KB	Output is correct
4	Correct	1111 ms	162820 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1143 ms	161956 KB	Output is correct
3	Correct	1116 ms	162820 KB	Output is correct
4	Correct	1111 ms	162820 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	1123 ms	162868 KB	Output is correct
7	Correct	1071 ms	163084 KB	Output is correct
8	Correct	1088 ms	162624 KB	Output is correct
9	Correct	1136 ms	162656 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1143 ms	161956 KB	Output is correct
3	Correct	1116 ms	162820 KB	Output is correct
4	Correct	1111 ms	162820 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	115 ms	16888 KB	Output is correct
7	Correct	97 ms	16980 KB	Output is correct
8	Correct	99 ms	17060 KB	Output is correct
9	Correct	95 ms	16976 KB	Output is correct
10	Correct	101 ms	17064 KB	Output is correct
11	Correct	94 ms	16976 KB	Output is correct
12	Correct	102 ms	17020 KB	Output is correct
13	Correct	97 ms	16984 KB	Output is correct
14	Correct	93 ms	16976 KB	Output is correct
15	Correct	101 ms	16868 KB	Output is correct
16	Correct	115 ms	16980 KB	Output is correct
17	Correct	103 ms	17100 KB	Output is correct
18	Correct	1050 ms	162896 KB	Output is correct
19	Correct	1118 ms	162760 KB	Output is correct
20	Correct	1217 ms	162648 KB	Output is correct
21	Correct	94 ms	16720 KB	Output is correct
22	Correct	134 ms	16724 KB	Output is correct
23	Correct	385 ms	54920 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	113 ms	16772 KB	Output is correct
3	Correct	137 ms	16896 KB	Output is correct
4	Correct	1130 ms	159868 KB	Output is correct
5	Correct	109 ms	16724 KB	Output is correct
6	Correct	106 ms	16680 KB	Output is correct
7	Correct	97 ms	16720 KB	Output is correct
8	Correct	96 ms	16724 KB	Output is correct
9	Correct	98 ms	16792 KB	Output is correct
10	Correct	95 ms	16776 KB	Output is correct
11	Correct	101 ms	16728 KB	Output is correct
12	Correct	105 ms	16848 KB	Output is correct
13	Correct	97 ms	16804 KB	Output is correct
14	Correct	1110 ms	159508 KB	Output is correct
15	Correct	93 ms	16720 KB	Output is correct
16	Correct	1055 ms	159568 KB	Output is correct
17	Correct	1073 ms	159608 KB	Output is correct
18	Correct	0 ms	344 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	9 ms	2004 KB	Output is correct
3	Correct	9 ms	2124 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	8 ms	1628 KB	Output is correct
17	Correct	100 ms	15696 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	1 ms	604 KB	Output is correct
26	Correct	1 ms	600 KB	Output is correct
27	Correct	3 ms	600 KB	Output is correct
28	Correct	976 ms	155744 KB	Output is correct
29	Correct	0 ms	348 KB	Output is correct
30	Correct	1143 ms	161956 KB	Output is correct
31	Correct	1116 ms	162820 KB	Output is correct
32	Correct	1111 ms	162820 KB	Output is correct
33	Correct	0 ms	344 KB	Output is correct
34	Correct	1123 ms	162868 KB	Output is correct
35	Correct	1071 ms	163084 KB	Output is correct
36	Correct	1088 ms	162624 KB	Output is correct
37	Correct	1136 ms	162656 KB	Output is correct
38	Correct	0 ms	344 KB	Output is correct
39	Correct	115 ms	16888 KB	Output is correct
40	Correct	97 ms	16980 KB	Output is correct
41	Correct	99 ms	17060 KB	Output is correct
42	Correct	95 ms	16976 KB	Output is correct
43	Correct	101 ms	17064 KB	Output is correct
44	Correct	94 ms	16976 KB	Output is correct
45	Correct	102 ms	17020 KB	Output is correct
46	Correct	97 ms	16984 KB	Output is correct
47	Correct	93 ms	16976 KB	Output is correct
48	Correct	101 ms	16868 KB	Output is correct
49	Correct	115 ms	16980 KB	Output is correct
50	Correct	103 ms	17100 KB	Output is correct
51	Correct	1050 ms	162896 KB	Output is correct
52	Correct	1118 ms	162760 KB	Output is correct
53	Correct	1217 ms	162648 KB	Output is correct
54	Correct	94 ms	16720 KB	Output is correct
55	Correct	134 ms	16724 KB	Output is correct
56	Correct	385 ms	54920 KB	Output is correct
57	Correct	0 ms	348 KB	Output is correct
58	Correct	113 ms	16772 KB	Output is correct
59	Correct	137 ms	16896 KB	Output is correct
60	Correct	1130 ms	159868 KB	Output is correct
61	Correct	109 ms	16724 KB	Output is correct
62	Correct	106 ms	16680 KB	Output is correct
63	Correct	97 ms	16720 KB	Output is correct
64	Correct	96 ms	16724 KB	Output is correct
65	Correct	98 ms	16792 KB	Output is correct
66	Correct	95 ms	16776 KB	Output is correct
67	Correct	101 ms	16728 KB	Output is correct
68	Correct	105 ms	16848 KB	Output is correct
69	Correct	97 ms	16804 KB	Output is correct
70	Correct	1110 ms	159508 KB	Output is correct
71	Correct	93 ms	16720 KB	Output is correct
72	Correct	1055 ms	159568 KB	Output is correct
73	Correct	1073 ms	159608 KB	Output is correct
74	Correct	0 ms	344 KB	Output is correct
75	Correct	0 ms	348 KB	Output is correct
76	Correct	0 ms	348 KB	Output is correct
77	Correct	1 ms	348 KB	Output is correct
78	Correct	0 ms	348 KB	Output is correct
79	Correct	12 ms	2000 KB	Output is correct
80	Correct	1094 ms	159140 KB	Output is correct
81	Correct	1114 ms	159060 KB	Output is correct
82	Correct	1175 ms	159216 KB	Output is correct
83	Correct	1133 ms	145908 KB	Output is correct
84	Correct	1114 ms	145588 KB	Output is correct
85	Correct	1121 ms	145488 KB	Output is correct
86	Correct	392 ms	49300 KB	Output is correct
87	Correct	0 ms	344 KB	Output is correct

Submission #1044983

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