Cod sursa(job #1320767)

Utilizator alevasluialeHuhurez Marius alevasluiale Data 18 ianuarie 2015 14:33:30
Problema Lista lui Andrei Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.7 kb
#include <cstdio>
#include <vector>
#include <bitset>
using namespace std;
int c[1001][26];
bitset<26>v[26];
const int mod=104659;
int main()
{
    freopen("nrcuv.in","r",stdin);
    freopen("nrcuv.out","w",stdout);
    int n,m,i,j,u,nr=0;
    char a,b;
    scanf("%d %d\n",&n,&m);
    for(i=1;i<=m;i++)
    {
        scanf("%c %c\n",&a,&b);
        v[a-97][b-97]=v[b-97][a-97]=1;
    }
    for(i=0;i<26;i++) c[1][i]=1;
    for(i=2;i<=n;i++)
    {
        for(j=0;j<26;j++)
        {
            for(u=0;u<26;u++)
            {
                if(v[j][u]==0) c[i][j]=(c[i][j]+c[i-1][u])%mod;
            }
        }
    }
    for(i=0;i<26;i++) nr=(nr+c[n][i])%mod;
    printf("%d",nr);
}