Cod sursa(job #1852044)

Utilizator adystar00Bunea Andrei adystar00 Data 20 ianuarie 2017 15:07:10
Problema Lista lui Andrei Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.84 kb
#include <iostream>
#include <fstream>
using namespace std;
const int MOD = 104659;
int d[1010][30];
bool v[30][30];
int main()
{
    ifstream fin ("nrcuv.in");
    ofstream fout ("nrcuv.out");
    int n,m,i,j,k;
    char a,b;
    long long suma=0;
    fin>>n>>m;
    for(i=1; i<=m; i++)
    {
        fin>>a>>b;
        v[a-'a'+1][b-'a'+1]=1;
        v[b-'a'+1][a-'a'+1]=1;
    }
    for(i=1; i<=26; i++)
        d[1][i]=1;
    for(i=2; i<=n; i++)
    {
        for(j=1; j<=26; j++)
        {
            suma=0;
            for(k=1; k<=26; k++)
            {
                if(v[j][k]==0)
                    suma+=d[i-1][k];
            }
            d[i][j]=suma%MOD;
        }
    }
    suma=0;
    for(i=1; i<=26; i++)
    {
        suma+=d[n][i];
        suma%=MOD;
    }
    fout<<suma;
    return 0;
}