Cod sursa(job #1739247)

Utilizator tziplea_stefanTiplea Stefan tziplea_stefan Data 9 august 2016 00:01:54
Problema Lista lui Andrei Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.9 kb
#include <fstream>
#define CAR 35
#define VAL 1005
#define MOD 104659

using namespace std;

ifstream fin("nrcuv.in");
ofstream fout("nrcuv.out");

int N, M, i, j, cnt;
int v[CAR][VAL], nr;
char c, k;
bool ok[CAR][CAR];

int main()
{
    fin >> N >> M;
    for (i=1; i<=M; i++)
    {
        fin >> c >> k;
        ok[c-'a'][k-'a']=1;
        ok[k-'a'][c-'a']=1;
    }
    for (i=0; i<=25; i++)
      v[i][1]=1;
    for (i=2; i<=N; i++)
    {
        for (j=0; j<=25; j++)
        {
            for (cnt=0; cnt<=25; cnt++)
            {
                if (ok[j][cnt]==0)
                {
                    v[j][i]+=v[cnt][i-1] % MOD;
                    v[j][i]%=MOD;
                }
            }
        }
    }
    nr=0;
    for (i=0; i<=25; i++)
    {
        nr+=v[i][N];
        nr%=MOD;
    }
    fout << nr;
    fin.close();
    fout.close();
    return 0;
}