Submission #1044980

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1044980	2024-08-05T15:19:25 Z	Kel_Mahmut	Strange Device (APIO19_strange_device)	C++14	100 / 100	1240 ms	168156 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	344 KB	Output is correct
2	Correct	11 ms	2392 KB	Output is correct
3	Correct	10 ms	2004 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	348 KB	Output is correct
11	Correct	1 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	9 ms	1628 KB	Output is correct
17	Correct	100 ms	14996 KB	Output is correct
18	Correct	0 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	344 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	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1036 ms	144480 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1063 ms	145992 KB	Output is correct
3	Correct	1122 ms	153628 KB	Output is correct
4	Correct	1072 ms	153540 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1063 ms	145992 KB	Output is correct
3	Correct	1122 ms	153628 KB	Output is correct
4	Correct	1072 ms	153540 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	1062 ms	153508 KB	Output is correct
7	Correct	1088 ms	153760 KB	Output is correct
8	Correct	1126 ms	153584 KB	Output is correct
9	Correct	1127 ms	153472 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1063 ms	145992 KB	Output is correct
3	Correct	1122 ms	153628 KB	Output is correct
4	Correct	1072 ms	153540 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	105 ms	16212 KB	Output is correct
7	Correct	94 ms	16212 KB	Output is correct
8	Correct	94 ms	16212 KB	Output is correct
9	Correct	95 ms	16072 KB	Output is correct
10	Correct	90 ms	16208 KB	Output is correct
11	Correct	95 ms	16200 KB	Output is correct
12	Correct	105 ms	16208 KB	Output is correct
13	Correct	108 ms	16200 KB	Output is correct
14	Correct	98 ms	16132 KB	Output is correct
15	Correct	107 ms	16212 KB	Output is correct
16	Correct	104 ms	16212 KB	Output is correct
17	Correct	100 ms	16212 KB	Output is correct
18	Correct	1055 ms	153680 KB	Output is correct
19	Correct	1156 ms	153384 KB	Output is correct
20	Correct	1240 ms	153884 KB	Output is correct
21	Correct	99 ms	16592 KB	Output is correct
22	Correct	108 ms	16680 KB	Output is correct
23	Correct	399 ms	55560 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	118 ms	16980 KB	Output is correct
3	Correct	125 ms	16752 KB	Output is correct
4	Correct	1109 ms	159876 KB	Output is correct
5	Correct	145 ms	16672 KB	Output is correct
6	Correct	108 ms	16720 KB	Output is correct
7	Correct	112 ms	16724 KB	Output is correct
8	Correct	108 ms	16668 KB	Output is correct
9	Correct	151 ms	16748 KB	Output is correct
10	Correct	118 ms	16736 KB	Output is correct
11	Correct	103 ms	16680 KB	Output is correct
12	Correct	128 ms	16724 KB	Output is correct
13	Correct	107 ms	16632 KB	Output is correct
14	Correct	1145 ms	159596 KB	Output is correct
15	Correct	95 ms	16816 KB	Output is correct
16	Correct	1140 ms	159644 KB	Output is correct
17	Correct	1150 ms	159740 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	11 ms	2392 KB	Output is correct
3	Correct	10 ms	2004 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	348 KB	Output is correct
11	Correct	1 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	9 ms	1628 KB	Output is correct
17	Correct	100 ms	14996 KB	Output is correct
18	Correct	0 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	344 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	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1036 ms	144480 KB	Output is correct
29	Correct	0 ms	344 KB	Output is correct
30	Correct	1063 ms	145992 KB	Output is correct
31	Correct	1122 ms	153628 KB	Output is correct
32	Correct	1072 ms	153540 KB	Output is correct
33	Correct	0 ms	344 KB	Output is correct
34	Correct	1062 ms	153508 KB	Output is correct
35	Correct	1088 ms	153760 KB	Output is correct
36	Correct	1126 ms	153584 KB	Output is correct
37	Correct	1127 ms	153472 KB	Output is correct
38	Correct	0 ms	348 KB	Output is correct
39	Correct	105 ms	16212 KB	Output is correct
40	Correct	94 ms	16212 KB	Output is correct
41	Correct	94 ms	16212 KB	Output is correct
42	Correct	95 ms	16072 KB	Output is correct
43	Correct	90 ms	16208 KB	Output is correct
44	Correct	95 ms	16200 KB	Output is correct
45	Correct	105 ms	16208 KB	Output is correct
46	Correct	108 ms	16200 KB	Output is correct
47	Correct	98 ms	16132 KB	Output is correct
48	Correct	107 ms	16212 KB	Output is correct
49	Correct	104 ms	16212 KB	Output is correct
50	Correct	100 ms	16212 KB	Output is correct
51	Correct	1055 ms	153680 KB	Output is correct
52	Correct	1156 ms	153384 KB	Output is correct
53	Correct	1240 ms	153884 KB	Output is correct
54	Correct	99 ms	16592 KB	Output is correct
55	Correct	108 ms	16680 KB	Output is correct
56	Correct	399 ms	55560 KB	Output is correct
57	Correct	0 ms	348 KB	Output is correct
58	Correct	118 ms	16980 KB	Output is correct
59	Correct	125 ms	16752 KB	Output is correct
60	Correct	1109 ms	159876 KB	Output is correct
61	Correct	145 ms	16672 KB	Output is correct
62	Correct	108 ms	16720 KB	Output is correct
63	Correct	112 ms	16724 KB	Output is correct
64	Correct	108 ms	16668 KB	Output is correct
65	Correct	151 ms	16748 KB	Output is correct
66	Correct	118 ms	16736 KB	Output is correct
67	Correct	103 ms	16680 KB	Output is correct
68	Correct	128 ms	16724 KB	Output is correct
69	Correct	107 ms	16632 KB	Output is correct
70	Correct	1145 ms	159596 KB	Output is correct
71	Correct	95 ms	16816 KB	Output is correct
72	Correct	1140 ms	159644 KB	Output is correct
73	Correct	1150 ms	159740 KB	Output is correct
74	Correct	0 ms	348 KB	Output is correct
75	Correct	0 ms	348 KB	Output is correct
76	Correct	0 ms	348 KB	Output is correct
77	Correct	0 ms	348 KB	Output is correct
78	Correct	0 ms	348 KB	Output is correct
79	Correct	10 ms	2000 KB	Output is correct
80	Correct	1183 ms	168108 KB	Output is correct
81	Correct	1211 ms	168020 KB	Output is correct
82	Correct	1188 ms	168092 KB	Output is correct
83	Correct	1228 ms	167844 KB	Output is correct
84	Correct	1158 ms	168108 KB	Output is correct
85	Correct	1206 ms	168156 KB	Output is correct
86	Correct	433 ms	57976 KB	Output is correct
87	Correct	0 ms	348 KB	Output is correct

Submission #1044980

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