Cod sursa(job #2476913)

Utilizator FasoleboiTudor Gadalean Fasoleboi Data 19 octombrie 2019 12:33:53
Problema Lista lui Andrei Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.76 kb
#include <bits/stdc++.h>
#define N 10005
#define M 150
#define MOD 104659
using namespace std;

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

int n, m, dp[N][M], mat[N][M], i;
char l1, l2;

int main()
{
    fin>>n>>m;
    for(i=1;i<=m;i++){
        fin>>l1>>l2;
        mat[l1][l2]=mat[l2][l1]=1;
    }
    for(i='a';i<='z';i++){
        dp[1][i]=1;
    }
    for(i=2;i<=n;i++){
        for(int a='a';a<='z';a++){
            for(int b='a';b<='z';b++){
                if(mat[a][b]==0){
                    dp[i][b]+=dp[i-1][a];
                    dp[i][b]%=MOD;
                }
            }
        }
    }
    int ana=0;
    for(i='a';i<='z';i++){
        ana+=dp[n][i];
        ana%=MOD;
    }
    fout<<ana;
    return 0;
}