Cod sursa(job #2851571)

Utilizator AndreiBOTOBotocan Andrei AndreiBOTO Data 18 februarie 2022 20:23:55
Problema Lista lui Andrei Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.7 kb
#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;

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

const int NMAX=1005;
const int MOD=104659;
int dp[NMAX][26];
int viz[26][26];
char x,y;

int main()
{
    int n,i,j,m,kon=0,k;
    fin>>n>>m;
    for(i=0;i<26;i++)
        dp[1][i]=1;
    for(i=1;i<=m;i++)
    {
        fin>>x>>y;
        viz[x-'a'][y-'a']=viz[y-'a'][x-'a']=1;
    }
    for(i=2;i<=n;i++)
        for(j=0;j<26;j++)
            for(k=0;k<26;k++)
                if(viz[j][k]==0)
                    dp[i][j]=(dp[i][j]+dp[i-1][k])%MOD;
    for(i=0;i<26;i++)
        kon=(kon+dp[n][i])%MOD;
    fout <<kon<< endl;
    return 0;
}