답안 #994561

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
994561	2024-06-08T01:17:41 Z	emptypringlescan	Trains (BOI24_trains)	C++17	100 / 100	148 ms	8448 KB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
const long long buc=316,mod=1000000007;
int32_t main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n;
	cin >> n;
	pair<long long,long long> arr[n+1];
	for(int i=1; i<=n; i++) cin >> arr[i].first >> arr[i].second;
	long long dp[n+1];
	memset(dp,0,sizeof(dp));
	dp[1]=1;
	long long smol[buc+5][buc+5]; //div, rem
	memset(smol,0,sizeof(smol));
	vector<pair<int,long long> > stop[n+1];
	long long ans=0;
	for(int i=1; i<=n; i++){
		for(int j=1; j<buc; j++){
			dp[i]+=smol[j][i%j];
			dp[i]%=mod;
		}
		ans+=dp[i];
		ans%=mod;
		for(auto j:stop[i]){
			smol[j.first][i%j.first]-=j.second;
			smol[j.first][i%j.first]%=mod;
			if(smol[j.first][i%j.first]<0) smol[j.first][i%j.first]+=mod;
		}
		if(arr[i].first==0||arr[i].second==0) continue;
		else if(arr[i].first<buc){
			smol[arr[i].first][i%arr[i].first]+=dp[i];
			smol[arr[i].first][i%arr[i].first]%=mod;
			if(i+arr[i].first*arr[i].second<=n){
				stop[i+arr[i].first*arr[i].second].push_back({arr[i].first,dp[i]});
			}
		}
		else{
			for(int j=1; j<=arr[i].second; j++){
				if(i+j*arr[i].first>n) break;
				dp[i+j*arr[i].first]+=dp[i];
				dp[i+j*arr[i].first]%=mod;
			}
		}
	}
	cout << ans;
}

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1116 KB	Output is correct
2	Correct	1 ms	1116 KB	Output is correct
3	Correct	1 ms	1116 KB	Output is correct
4	Correct	0 ms	1116 KB	Output is correct
5	Correct	1 ms	1116 KB	Output is correct
6	Correct	1 ms	1116 KB	Output is correct
7	Correct	1 ms	1116 KB	Output is correct
8	Correct	1 ms	1128 KB	Output is correct
9	Correct	1 ms	1112 KB	Output is correct
10	Correct	1 ms	1116 KB	Output is correct
11	Correct	1 ms	1116 KB	Output is correct
12	Correct	1 ms	1116 KB	Output is correct
13	Correct	1 ms	1116 KB	Output is correct
14	Correct	1 ms	1116 KB	Output is correct
15	Correct	1 ms	1116 KB	Output is correct
16	Correct	1 ms	1116 KB	Output is correct
17	Correct	1 ms	1112 KB	Output is correct
18	Correct	1 ms	1116 KB	Output is correct
19	Correct	1 ms	1116 KB	Output is correct

Subtask #2
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1116 KB	Output is correct
2	Correct	1 ms	1116 KB	Output is correct
3	Correct	1 ms	1116 KB	Output is correct
4	Correct	0 ms	1116 KB	Output is correct
5	Correct	1 ms	1116 KB	Output is correct
6	Correct	1 ms	1116 KB	Output is correct
7	Correct	1 ms	1116 KB	Output is correct
8	Correct	1 ms	1128 KB	Output is correct
9	Correct	1 ms	1112 KB	Output is correct
10	Correct	1 ms	1116 KB	Output is correct
11	Correct	1 ms	1116 KB	Output is correct
12	Correct	1 ms	1116 KB	Output is correct
13	Correct	1 ms	1116 KB	Output is correct
14	Correct	1 ms	1116 KB	Output is correct
15	Correct	1 ms	1116 KB	Output is correct
16	Correct	1 ms	1116 KB	Output is correct
17	Correct	1 ms	1112 KB	Output is correct
18	Correct	1 ms	1116 KB	Output is correct
19	Correct	1 ms	1116 KB	Output is correct
20	Correct	12 ms	1628 KB	Output is correct
21	Correct	5 ms	1372 KB	Output is correct
22	Correct	16 ms	1764 KB	Output is correct
23	Correct	10 ms	1372 KB	Output is correct
24	Correct	7 ms	1372 KB	Output is correct
25	Correct	13 ms	1628 KB	Output is correct
26	Correct	7 ms	1372 KB	Output is correct
27	Correct	13 ms	1496 KB	Output is correct
28	Correct	16 ms	1724 KB	Output is correct
29	Correct	16 ms	1624 KB	Output is correct
30	Correct	15 ms	1720 KB	Output is correct
31	Correct	14 ms	1732 KB	Output is correct
32	Correct	16 ms	1724 KB	Output is correct
33	Correct	15 ms	1884 KB	Output is correct
34	Correct	15 ms	1628 KB	Output is correct
35	Correct	14 ms	1732 KB	Output is correct
36	Correct	15 ms	1728 KB	Output is correct

Subtask #3
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1116 KB	Output is correct
2	Correct	10 ms	1372 KB	Output is correct
3	Correct	7 ms	1464 KB	Output is correct
4	Correct	13 ms	1628 KB	Output is correct
5	Correct	115 ms	6808 KB	Output is correct
6	Correct	138 ms	5720 KB	Output is correct
7	Correct	143 ms	6212 KB	Output is correct
8	Correct	1 ms	1112 KB	Output is correct
9	Correct	1 ms	1116 KB	Output is correct
10	Correct	1 ms	1116 KB	Output is correct
11	Correct	15 ms	1728 KB	Output is correct
12	Correct	144 ms	5896 KB	Output is correct
13	Correct	1 ms	1112 KB	Output is correct
14	Correct	14 ms	1724 KB	Output is correct
15	Correct	139 ms	5724 KB	Output is correct

Subtask #4
34.0 / 34.0

#	결과	실행 시간	메모리	Grader output
1	Correct	72 ms	3416 KB	Output is correct
2	Correct	59 ms	2908 KB	Output is correct
3	Correct	138 ms	5720 KB	Output is correct
4	Correct	101 ms	4440 KB	Output is correct
5	Correct	1 ms	1116 KB	Output is correct
6	Correct	1 ms	1116 KB	Output is correct
7	Correct	14 ms	1628 KB	Output is correct
8	Correct	142 ms	5720 KB	Output is correct

Subtask #5
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1116 KB	Output is correct
2	Correct	1 ms	1116 KB	Output is correct
3	Correct	1 ms	1116 KB	Output is correct
4	Correct	0 ms	1116 KB	Output is correct
5	Correct	1 ms	1116 KB	Output is correct
6	Correct	1 ms	1116 KB	Output is correct
7	Correct	1 ms	1116 KB	Output is correct
8	Correct	1 ms	1128 KB	Output is correct
9	Correct	1 ms	1112 KB	Output is correct
10	Correct	1 ms	1116 KB	Output is correct
11	Correct	1 ms	1116 KB	Output is correct
12	Correct	1 ms	1116 KB	Output is correct
13	Correct	1 ms	1116 KB	Output is correct
14	Correct	1 ms	1116 KB	Output is correct
15	Correct	1 ms	1116 KB	Output is correct
16	Correct	1 ms	1116 KB	Output is correct
17	Correct	1 ms	1112 KB	Output is correct
18	Correct	1 ms	1116 KB	Output is correct
19	Correct	1 ms	1116 KB	Output is correct
20	Correct	12 ms	1628 KB	Output is correct
21	Correct	5 ms	1372 KB	Output is correct
22	Correct	16 ms	1764 KB	Output is correct
23	Correct	10 ms	1372 KB	Output is correct
24	Correct	7 ms	1372 KB	Output is correct
25	Correct	13 ms	1628 KB	Output is correct
26	Correct	7 ms	1372 KB	Output is correct
27	Correct	13 ms	1496 KB	Output is correct
28	Correct	16 ms	1724 KB	Output is correct
29	Correct	16 ms	1624 KB	Output is correct
30	Correct	15 ms	1720 KB	Output is correct
31	Correct	14 ms	1732 KB	Output is correct
32	Correct	16 ms	1724 KB	Output is correct
33	Correct	15 ms	1884 KB	Output is correct
34	Correct	15 ms	1628 KB	Output is correct
35	Correct	14 ms	1732 KB	Output is correct
36	Correct	15 ms	1728 KB	Output is correct
37	Correct	1 ms	1116 KB	Output is correct
38	Correct	10 ms	1372 KB	Output is correct
39	Correct	7 ms	1464 KB	Output is correct
40	Correct	13 ms	1628 KB	Output is correct
41	Correct	115 ms	6808 KB	Output is correct
42	Correct	138 ms	5720 KB	Output is correct
43	Correct	143 ms	6212 KB	Output is correct
44	Correct	1 ms	1112 KB	Output is correct
45	Correct	1 ms	1116 KB	Output is correct
46	Correct	1 ms	1116 KB	Output is correct
47	Correct	15 ms	1728 KB	Output is correct
48	Correct	144 ms	5896 KB	Output is correct
49	Correct	1 ms	1112 KB	Output is correct
50	Correct	14 ms	1724 KB	Output is correct
51	Correct	139 ms	5724 KB	Output is correct
52	Correct	72 ms	3416 KB	Output is correct
53	Correct	59 ms	2908 KB	Output is correct
54	Correct	138 ms	5720 KB	Output is correct
55	Correct	101 ms	4440 KB	Output is correct
56	Correct	1 ms	1116 KB	Output is correct
57	Correct	1 ms	1116 KB	Output is correct
58	Correct	14 ms	1628 KB	Output is correct
59	Correct	142 ms	5720 KB	Output is correct
60	Correct	117 ms	5176 KB	Output is correct
61	Correct	140 ms	5724 KB	Output is correct
62	Correct	146 ms	8448 KB	Output is correct
63	Correct	136 ms	5932 KB	Output is correct
64	Correct	146 ms	5720 KB	Output is correct
65	Correct	148 ms	5724 KB	Output is correct
66	Correct	137 ms	5720 KB	Output is correct
67	Correct	146 ms	5720 KB	Output is correct
68	Correct	140 ms	5724 KB	Output is correct
69	Correct	145 ms	7896 KB	Output is correct
70	Correct	139 ms	5724 KB	Output is correct
71	Correct	140 ms	5724 KB	Output is correct
72	Correct	137 ms	5724 KB	Output is correct

답안 #994561

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 13.0 / 13.0

Subtask #3 16.0 / 16.0

Subtask #4 34.0 / 34.0

Subtask #5 29.0 / 29.0

Subtask #1
8.0 / 8.0

Subtask #2
13.0 / 13.0

Subtask #3
16.0 / 16.0

Subtask #4
34.0 / 34.0

Subtask #5
29.0 / 29.0