Cod sursa(job #2932071)

Utilizator andreibrosPeta Andrei Mathias andreibros Data 1 noiembrie 2022 20:32:25
Problema Lista lui Andrei Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.82 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream in("nrcuv.in");
ofstream out("nrcuv.out");
bool a[27][27];
int nr[1001][27];
const int mod=104659;
int main()
{
    char x1,x2;
    int n,m;
    in>>n>>m;
    for(int i=1; i<=m; i++)
    {
        in>>x1>>x2;
        a[x1-'a'+1][x2-'a'+1]=1;
        a[x2-'a'+1][x1-'a'+1]=1;
    }
    for(int i=1; i<=26; i++)
    {
        nr[1][i]=1;
    }
    for(int i=2; i<=n; i++)
        for(int j=1; j<=26; j++)
            for(int k=1; k<=26; k++)
                {
                    if(a[j][k]==0)
                    {

                        nr[i][j]=(nr[i][j]%mod+nr[i-1][k]%mod)%mod;

                    }
                }
    int r=0;
    for(int i=1; i<=26; i++)
        r=(r%mod+nr[n][i]%mod)%mod;
    out<<r;

    return 0;
}