Submission #96679

#	Time	Username	Problem	Language	Result	Execution time	Memory
96679		Rouge_Hugo	Mate (COCI18_mate)	C++14	80 / 100	2069 ms	6520 KiB

mate

#include <bits/stdc++.h>
using namespace std;
const int mod =1e9+7;
int dp[2003][28][28];
int main()
{
	string s;cin>>s;
	int n=s.size();
		
	for(int i=0;i<n;i++)
	{
		for(int j=n;j>2;j--)
		{
			for(int u=1;u<=26;u++)
			{
				for(int h=1;h<27;h++)
				{
					dp[j][u][s[i]-'0'-48]+=dp[j-1][h][u]%mod;
					dp[j][u][s[i]-'0'-48]%=mod;
				}	
			}
		}
	for(int j=1;j<=26;j++)
	{
		dp[2][j][s[i]-'0'-48]+=dp[1][0][j];
		dp[2][j][s[i]-'0'-48]%=mod;
	}
		dp[1][0][s[i]-'0'-48]++;
	}
	char c,c1;
	int x;
	int q;cin>>q;
	while (q--)
	{
		cin>>x;
		cin>>c>>c1;
		cout<<dp[x][c-'0'-48][c1-'0'-48]%mod<<endl;
	}

 return 0;

}

• Subtask 1: 80 / 100