Submission #1052919

# Submission time Handle Problem Language Result Execution time Memory
1052919 2024-08-11T05:58:06 Z vjudge1 Trains (BOI24_trains) C++17
71 / 100
2000 ms 12200 KB
/*
بسم الله الرحمن الرحيم
Author:
                          (:Muhammad Aneeq:)
*/

#include <iostream>
#include <map>
using namespace std;
#define int long long
int const mod=1e9+7;
inline void solve()
{
	int n;
	cin>>n;
	int d[n],x[n];
	for (int i=0;i<n;i++)
		cin>>d[i]>>x[i];
	int ans[n]={};
	map<int,int>val[n]={};
	ans[0]=1;
	for (int i=0;i<n;i++)
	{
		for (auto& j:val[i])
		{
			ans[i]+=j.second;
			ans[i]%=mod;
		}
		if (d[i]&&x[i]&&i+d[i]<n)
		{
			val[i+d[i]][d[i]]+=ans[i];
			if (i+d[i]*x[i]+d[i]<n)
			{
				val[i+d[i]*x[i]+d[i]][d[i]]+=(mod-ans[i]);
				val[i+d[i]*x[i]+d[i]][d[i]]%=mod;
			}
		}
		for (auto& j:val[i])
		{
			if (i+j.first<n&&j.second!=0)
			{
				val[i+j.first][j.first]+=j.second;
				val[i+j.first][j.first]%=mod;
			}
		}
		val[i]={};
	}
	int z=0;
	for (auto i:ans)
		z=(z+i)%mod;
	cout<<z<<endl;
}	
signed main()
{
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
        solve();
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 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 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 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 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 8 ms 1116 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 15 ms 1628 KB Output is correct
23 Correct 1 ms 804 KB Output is correct
24 Correct 1 ms 860 KB Output is correct
25 Correct 34 ms 1268 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 856 KB Output is correct
28 Correct 2 ms 1116 KB Output is correct
29 Correct 2 ms 1116 KB Output is correct
30 Correct 7 ms 1372 KB Output is correct
31 Correct 2 ms 1116 KB Output is correct
32 Correct 1 ms 1116 KB Output is correct
33 Correct 32 ms 1368 KB Output is correct
34 Correct 2 ms 1112 KB Output is correct
35 Correct 1 ms 1116 KB Output is correct
36 Correct 48 ms 1364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 860 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 1 ms 860 KB Output is correct
5 Correct 9 ms 5724 KB Output is correct
6 Correct 15 ms 7256 KB Output is correct
7 Correct 13 ms 8028 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 1116 KB Output is correct
12 Correct 16 ms 7392 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 1 ms 1112 KB Output is correct
15 Correct 14 ms 7392 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 23 ms 3844 KB Output is correct
2 Correct 16 ms 3124 KB Output is correct
3 Correct 19 ms 7256 KB Output is correct
4 Correct 17 ms 5496 KB Output is correct
5 Correct 0 ms 600 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 1116 KB Output is correct
8 Correct 14 ms 7260 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 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 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 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 8 ms 1116 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 15 ms 1628 KB Output is correct
23 Correct 1 ms 804 KB Output is correct
24 Correct 1 ms 860 KB Output is correct
25 Correct 34 ms 1268 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 856 KB Output is correct
28 Correct 2 ms 1116 KB Output is correct
29 Correct 2 ms 1116 KB Output is correct
30 Correct 7 ms 1372 KB Output is correct
31 Correct 2 ms 1116 KB Output is correct
32 Correct 1 ms 1116 KB Output is correct
33 Correct 32 ms 1368 KB Output is correct
34 Correct 2 ms 1112 KB Output is correct
35 Correct 1 ms 1116 KB Output is correct
36 Correct 48 ms 1364 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 1 ms 860 KB Output is correct
39 Correct 1 ms 604 KB Output is correct
40 Correct 1 ms 860 KB Output is correct
41 Correct 9 ms 5724 KB Output is correct
42 Correct 15 ms 7256 KB Output is correct
43 Correct 13 ms 8028 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 1116 KB Output is correct
48 Correct 16 ms 7392 KB Output is correct
49 Correct 0 ms 344 KB Output is correct
50 Correct 1 ms 1112 KB Output is correct
51 Correct 14 ms 7392 KB Output is correct
52 Correct 23 ms 3844 KB Output is correct
53 Correct 16 ms 3124 KB Output is correct
54 Correct 19 ms 7256 KB Output is correct
55 Correct 17 ms 5496 KB Output is correct
56 Correct 0 ms 600 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 1 ms 1116 KB Output is correct
59 Correct 14 ms 7260 KB Output is correct
60 Correct 154 ms 6404 KB Output is correct
61 Correct 19 ms 7260 KB Output is correct
62 Correct 54 ms 7724 KB Output is correct
63 Correct 18 ms 7256 KB Output is correct
64 Correct 14 ms 7388 KB Output is correct
65 Execution timed out 2078 ms 12200 KB Time limit exceeded
66 Halted 0 ms 0 KB -