Cod sursa(job #1850156)

Utilizator stanciuandreiStanciulescu Andrei stanciuandrei Data 18 ianuarie 2017 11:52:13
Problema Lista lui Andrei Scor 5
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.83 kb
#include <iostream>
#include <fstream>
#define MOD 104659
using namespace std;

ifstream in("nrcuv.in");
ofstream out("nrcuv.out");
int n, m;
int dinamic[1001][27];
bool adj[28][28];

int main()
{
    in>>n>>m;
    for(int i=0;i<m;i++){
        int a, b;
        in>>a>>b;
        a-='a';
        b-='a';
        a++;
        b++;
        adj[a][b] = adj[b][a] = 1;
    }
    for(int i=1;i<=26;i++)
        dinamic[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(adj[j][k] == 0){
                    dinamic[i][j]=(dinamic[i-1][k]%MOD + dinamic[i][j]%MOD)%MOD;
                }
            }
        }
    }
    int sum=0;
    for(int i=1;i<=26;i++)
        sum=(dinamic[n][i]%MOD + sum%MOD)%MOD;
    out<<sum<<'\n';
    return 0;
}