Pagini recente » Cod sursa (job #1828544) | Cod sursa (job #1295640) | Cod sursa (job #1684136) | Cod sursa (job #1750989) | Cod sursa (job #2106919)
#include <fstream>
using namespace std;
ifstream cin("nrcuv.in");
ofstream cout("nrcuv.out");
const int DIM = 1001, MOD = 104659;
int pr[26][26], d[26][DIM];
int main()
{
int n, m;
cin >> n >> m;
for(int i = 1; i <= m; ++i)
{
char a, b;
cin >> a >> b;
if(!pr[(int)(a - 'a')][(int)(b - 'a')] && !pr[(int)(b - 'a')][(int)(a - 'a')])
{
pr[(int)(a - 'a')][(int)(b - 'a')] = pr[(int)(b - 'a')][(int)(a - 'a')] = 1;
}
}
for(int i = 0; i < 26; ++i)
d[1][i] = 1;
for(int i = 2; i <= n; ++i)
{
for(int j = 0; j < 26; ++j)
{
for(int k = 0; k < 26; ++k)
{
if(!pr[k][j])
d[i][j] += d[i - 1][k];
d[i][j] %= MOD;
}
}
}
int s = 0;
for(int i = 0; i < 26; ++i)
{
s += d[n][i];
s %= MOD;
}
cout << s;
return 0;
}