Pagini recente » Cod sursa (job #1241983) | Cod sursa (job #1822567) | Cod sursa (job #2964160) | Cod sursa (job #1710528) | Cod sursa (job #464965)
Cod sursa(job #464965)
#include <cstdio>
#define MOD 104659
int ok[30][30];
int main()
{
int k,k2,n,m,v[2][30],i,j,j2;
char c1,c2;
freopen("nrcuv.in","r",stdin);
freopen("nrcuv.out","w",stdout);
scanf("%d %d\n",&n,&m);
for (i=1;i<=m;++i)
{scanf("%c %c\n",&c1,&c2);
ok[c1-'a'][c2-'a']=ok[c2-'a'][c1-'a']=1;
}
for (i=0;i<=25;++i) v[1][i]=1;
for (i=2;i<=n;++i)
{
k=i%2;k2=(i-1)%2;
for (j=0;j<26;++j)
for (j2=0,v[k][j]=0;j2<26;++j2)
if (ok[j][j2]!=1)
v[k][j]=(v[k][j]+v[k2][j2]) % MOD;
}
for (i=1;i<26;++i)
v[k][0]=(v[k][0]+v[k][i]) % MOD;
printf("%d",v[k][0]);
return 0;}