Submission #834079

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
834079	2023-08-22T10:37:35 Z	Antekb	Strange Device (APIO19_strange_device)	C++17	100 / 100	1267 ms	69040 KB

strange_device

#include<bits/stdc++.h>
#define st first
#define nd second
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define eb emplace_back
#define pp pop_back
#define mp make_pair
using namespace std;
using pii = pair<int, int>;
using ll = long long;
using vi = vector<int>;
using vii = vector<pii>;
void debug(){cerr<<"\n";}
template<typename H, typename... T>
void debug(H h, T... t){
	cerr<<h;
	if(sizeof...(t)){
		cerr<<", ";
	}
	debug(t...);
}
#define deb(x...) cerr<<#x<<" = ";debug(x);

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

int main(){
	int n;
	ll a, b;
	cin>>n>>a>>b;
	if(b>=ll(1e18)/(a/gcd(a, b+1))){
		ll s=0;
		for(int i=0; i<n; i++){
			ll l, r;
			cin>>l>>r;
			s+=r-l+1;
		}
		cout<<s;
		return 0;
	}
	ll t=b*(a/__gcd(a, b+1));
	vector<pair<ll, int> > V;
	for(int i=0; i<n; i++){
		ll l, r;
		cin>>l>>r;
		if(r-l+1>=t){
			cout<<t;
			return 0;
		}
		l%=t;
		r%=t;
		if(l<=r){
			V.eb(l, 1);
			V.eb(r+1, -1);
		}
		else{
			V.eb(0, 1);
			V.eb(r+1, -1);
			V.eb(l, 1);
		}
	}
	V.eb(t, 0);
	sort(all(V));
	ll s=0, prv=0;
	int part=0;
	for(auto i:V){
		if(i.st!=prv){
			if(part>0)s+=i.st-prv;
			prv=i.st;
		}
		part+=i.nd;
	}
	cout<<s;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	11 ms	1104 KB	Output is correct
3	Correct	11 ms	1104 KB	Output is correct
4	Correct	0 ms	304 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	304 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	11 ms	1228 KB	Output is correct
17	Correct	111 ms	4780 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Memory	Grader output
1	Correct	300 KB	Output is correct
2	Correct	212 KB	Output is correct
3	Correct	212 KB	Output is correct
4	Correct	212 KB	Output is correct
5	Correct	212 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	2 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	368 KB	Output is correct
5	Correct	807 ms	56952 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	1084 ms	33380 KB	Output is correct
3	Correct	1110 ms	69040 KB	Output is correct
4	Correct	1079 ms	68824 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	1084 ms	33380 KB	Output is correct
3	Correct	1110 ms	69040 KB	Output is correct
4	Correct	1079 ms	68824 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1058 ms	69020 KB	Output is correct
7	Correct	1048 ms	68864 KB	Output is correct
8	Correct	1088 ms	69020 KB	Output is correct
9	Correct	1170 ms	68880 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	1084 ms	33380 KB	Output is correct
3	Correct	1110 ms	69040 KB	Output is correct
4	Correct	1079 ms	68824 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	107 ms	7228 KB	Output is correct
7	Correct	108 ms	7156 KB	Output is correct
8	Correct	109 ms	7204 KB	Output is correct
9	Correct	111 ms	7412 KB	Output is correct
10	Correct	104 ms	7216 KB	Output is correct
11	Correct	104 ms	7272 KB	Output is correct
12	Correct	104 ms	7180 KB	Output is correct
13	Correct	120 ms	7268 KB	Output is correct
14	Correct	104 ms	7200 KB	Output is correct
15	Correct	112 ms	7268 KB	Output is correct
16	Correct	111 ms	7264 KB	Output is correct
17	Correct	108 ms	7380 KB	Output is correct
18	Correct	1062 ms	68972 KB	Output is correct
19	Correct	1070 ms	68868 KB	Output is correct
20	Correct	1178 ms	68960 KB	Output is correct
21	Correct	119 ms	7272 KB	Output is correct
22	Correct	104 ms	7264 KB	Output is correct
23	Correct	334 ms	26640 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	113 ms	4716 KB	Output is correct
3	Correct	112 ms	7368 KB	Output is correct
4	Correct	1208 ms	68888 KB	Output is correct
5	Correct	109 ms	7252 KB	Output is correct
6	Correct	110 ms	7260 KB	Output is correct
7	Correct	109 ms	7236 KB	Output is correct
8	Correct	111 ms	7188 KB	Output is correct
9	Correct	109 ms	7208 KB	Output is correct
10	Correct	148 ms	7244 KB	Output is correct
11	Correct	113 ms	7272 KB	Output is correct
12	Correct	104 ms	7264 KB	Output is correct
13	Correct	111 ms	7216 KB	Output is correct
14	Correct	1211 ms	68844 KB	Output is correct
15	Correct	114 ms	7212 KB	Output is correct
16	Correct	1161 ms	68892 KB	Output is correct
17	Correct	1103 ms	68804 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	11 ms	1104 KB	Output is correct
3	Correct	11 ms	1104 KB	Output is correct
4	Correct	0 ms	304 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	304 KB	Output is correct
14	Correct	1 ms	212 KB	Output is correct
15	Correct	1 ms	212 KB	Output is correct
16	Correct	11 ms	1228 KB	Output is correct
17	Correct	111 ms	4780 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	300 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	1 ms	212 KB	Output is correct
25	Correct	2 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	368 KB	Output is correct
28	Correct	807 ms	56952 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	1084 ms	33380 KB	Output is correct
31	Correct	1110 ms	69040 KB	Output is correct
32	Correct	1079 ms	68824 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	1058 ms	69020 KB	Output is correct
35	Correct	1048 ms	68864 KB	Output is correct
36	Correct	1088 ms	69020 KB	Output is correct
37	Correct	1170 ms	68880 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	107 ms	7228 KB	Output is correct
40	Correct	108 ms	7156 KB	Output is correct
41	Correct	109 ms	7204 KB	Output is correct
42	Correct	111 ms	7412 KB	Output is correct
43	Correct	104 ms	7216 KB	Output is correct
44	Correct	104 ms	7272 KB	Output is correct
45	Correct	104 ms	7180 KB	Output is correct
46	Correct	120 ms	7268 KB	Output is correct
47	Correct	104 ms	7200 KB	Output is correct
48	Correct	112 ms	7268 KB	Output is correct
49	Correct	111 ms	7264 KB	Output is correct
50	Correct	108 ms	7380 KB	Output is correct
51	Correct	1062 ms	68972 KB	Output is correct
52	Correct	1070 ms	68868 KB	Output is correct
53	Correct	1178 ms	68960 KB	Output is correct
54	Correct	119 ms	7272 KB	Output is correct
55	Correct	104 ms	7264 KB	Output is correct
56	Correct	334 ms	26640 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	113 ms	4716 KB	Output is correct
59	Correct	112 ms	7368 KB	Output is correct
60	Correct	1208 ms	68888 KB	Output is correct
61	Correct	109 ms	7252 KB	Output is correct
62	Correct	110 ms	7260 KB	Output is correct
63	Correct	109 ms	7236 KB	Output is correct
64	Correct	111 ms	7188 KB	Output is correct
65	Correct	109 ms	7208 KB	Output is correct
66	Correct	148 ms	7244 KB	Output is correct
67	Correct	113 ms	7272 KB	Output is correct
68	Correct	104 ms	7264 KB	Output is correct
69	Correct	111 ms	7216 KB	Output is correct
70	Correct	1211 ms	68844 KB	Output is correct
71	Correct	114 ms	7212 KB	Output is correct
72	Correct	1161 ms	68892 KB	Output is correct
73	Correct	1103 ms	68804 KB	Output is correct
74	Correct	1 ms	212 KB	Output is correct
75	Correct	1 ms	212 KB	Output is correct
76	Correct	1 ms	212 KB	Output is correct
77	Correct	1 ms	300 KB	Output is correct
78	Correct	1 ms	212 KB	Output is correct
79	Correct	14 ms	1260 KB	Output is correct
80	Correct	1267 ms	68816 KB	Output is correct
81	Correct	1252 ms	68924 KB	Output is correct
82	Correct	1231 ms	68808 KB	Output is correct
83	Correct	1193 ms	68856 KB	Output is correct
84	Correct	1249 ms	68812 KB	Output is correct
85	Correct	1206 ms	68908 KB	Output is correct
86	Correct	348 ms	26676 KB	Output is correct
87	Correct	1 ms	212 KB	Output is correct

Submission #834079

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