Cod sursa(job #3281989)

Utilizator apoputoaievladVlad Cristian Apoputoaie apoputoaievlad Data 4 martie 2025 11:44:44
Problema Lista lui Andrei Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.65 kb
#include <bits/stdc++.h>
#define mod 104659
using namespace std;

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

int comp[27][27];
int n,m;
int dp[27][1002];

int main()
{
    char a,b;
    int i,j,q,suma=0;
    fin>>n>>m;
    for(i=1;i<=m;i++)
    {
        fin>>a>>b;
        comp[a-'a'][b-'a']=comp[b-'a'][a-'a']=1;
    }
    for(i=0;i<26;i++)
        dp[i][1]=1;
    for(j=2;j<=n;j++)
    {
        for(i=0;i<26;i++)
            for(q=0;q<26;q++)
            if(comp[i][q]==0)
            dp[i][j]=(dp[i][j]+dp[q][j-1])%mod;
    }
    for(i=0;i<26;i++)
        suma=(suma+dp[i][n])%mod;
    fout<<suma;
    return 0;
}