Cod sursa(job #2674516)

Utilizator DariusGhercaDarius Gherca DariusGherca Data 19 noiembrie 2020 16:17:18
Problema Lista lui Andrei Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.9 kb
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream f("nrcuv.in");
ofstream g("nrcuv.out");
const int N=1005;
const int mo=104659;
int n,m;
int dp[N][30];
bool conf[30][30];
int main()
{
    int lim='z'-'a';
    f>>n>>m;
    for(int i=1;i<=m;i++)
    {
        char x,y;
        f>>x>>y;
        conf[x-'a'][y-'a']=true;
        conf[y-'a'][x-'a']=true;
    }
    for(int i=0;i<=lim;i++)
    {
        dp[1][i]=1;
    }
    int s=0;
    for(int i=2;i<=n;i++)
    {
        for(int j=0;j<=lim;j++)
        {
            for(int k=0;k<=lim;k++)
            {
                if(!conf[j][k])
                {
                    dp[i][j]+=dp[i-1][k];
                }
                dp[i][j]=dp[i][j]%mo;
            }
        }
    }
    for(int i=0;i<=lim;i++)
    {
        s+=dp[n][i];
        s=s%mo;
    }
    g<<s;
    return 0;
}