Cod sursa(job #1019141)

Utilizator Anca_PaneaPanea Anca Anca_Panea Data 30 octombrie 2013 18:05:46
Problema Lista lui Andrei Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.82 kb
#include <fstream>
using namespace std;
ifstream eu ("nrcuv.in");
ofstream tu("nrcuv.out");
#define MOD 104659
int DP[30][1005],N,M,K;
bool T[30][30];
void Read()
{
    char C1,C2;
    eu>>N>>M;
    for(int i=1;i<=M;i++)
    {
        eu>>C1>>C2;
        T[C1-'a'+1][C2-'a'+1]=T[C2-'a'+1][C1-'a'+1]=1;
    }
}
void Solve()
{
    for(int i=1;i<=26;i++)
        DP[i][1]=1;
    for(int j=1;j<=N;j++)
    {
        for(int i=1;i<=26;i++)
        {
            for(int k=1;k<=26;k++)
            {
                if(T[i][k]==0)
                    DP[i][j]+=DP[k][j-1];
                DP[i][j]%=MOD;
            }
        }
    }
    for(int i=1;i<=26;i++)
        K+=DP[i][N];
    K%=MOD;
}
void Print()
{
    tu<<K<<"\n";
}
int main()
{
    Read();
    Solve();
    Print();
    return 0;
}