Cod sursa(job #1846120)

Utilizator vlad2004SuntUnNanoTub vlad2004 Data 12 ianuarie 2017 11:15:11
Problema Lista lui Andrei Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.8 kb
#include <fstream>

using namespace std;
ifstream in("nrcuv.in");
ofstream out("nrcuv.out");
const int mod=104659;
const int nmax=1000;
const int sigma=26;

bool c[sigma][sigma];
int d[nmax+1][sigma];

int main()
{
    int n,m;
    in>>n>>m;int i,j,k;
    for(i=1; i<=m; i++)
    {
        char x,y;
        in>>x>>y;
        c[x-'a'][y-'a']=1;
        c[y-'a'][x-'a']=1;
    }
    for(j=0; j<sigma; j++)
    {
        d[1][j]=1;
    }
    for(i=1; i<n; i++)
    {
        for(j=0; j<sigma; j++)
        {
            for(k=0; k<sigma; k++)
            {
                if(c[j][k]==0)
                 d[i+1][k]=(d[i+1][k]+d[i][j])%mod;
            }
        }
    }
    int s=0;
    for(j=0; j<=25; j++)
    {
        s=(s+d[n][j])%mod;
    }
    out<<s;
    return 0;
}