Cod sursa(job #3167542)
Utilizator | Data | 10 noiembrie 2023 20:10:35 | |
---|---|---|---|
Problema | Lista lui Andrei | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.75 kb |
#include <fstream>
#define mod 104659
using namespace std;
ifstream fin("nrcuv.in");
ofstream fout("nrcuv.out");
int v[150][150], dp[28][1004];
int main()
{
int n, m, i, j, k;
char x, y;
fin>>n>>m;
for(i=1;i<=m;i++)
{
fin>>x>>y;
v[x][y]=v[y][x]=1;
}
for(i=0;i<=25;i++)
{
dp[i][1]=1;
}
for(j=2;j<=n;j++)
{
for(i='a';i<='z';i++)
{
for(k='a';k<='z';k++)
{
if(v[i][k]==0)
{
dp[i-'a'][j]=(dp[i-'a'][j]+dp[k-'a'][j-1])%mod;
}
}
}
}
int s=0;
for(i=0;i<=25;i++)
{
s+=dp[i][n];
s=s%mod;
}
fout<<s;
}