Cod sursa(job #2704254)

Utilizator Amelia_MilcuMilcu Amelia Amelia_Milcu Data 10 februarie 2021 08:44:08
Problema Lista lui Andrei Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.73 kb
#include <fstream>
#define MOD 104659
using namespace std;
ifstream fin("nrcuv.in");
ofstream fout("nrcuv.out");
char x,y;
int sol,i,j,n,m,a[26][26],b[1001][26];
int main()
{
    fin>>n>>m;
    for (i=1; i<=m; i++)
    {
        fin>>x>>y;
        a[x-'a'][y-'a']=a[y-'a'][x-'a']= 1;
    }
    for(i=0; i<26; i++)
        b[1][i]=1;
    for(i=2; i<=n; i++)
    {
        for(j=0; j<26; j++)
        {
            for(int k=0; k<26; k++)
                if(a[k][j]==0)
                {
                    b[i][j]+=b[i-1][k];
                    b[i][j]%=MOD;
                }
        }
    }
    sol=0;
    for(i=0; i<26; i++)
    {
        sol+=b[n][i];
        sol%=MOD;
    }
    fout<<sol;
    return 0;
}