Sa se genereze cuvintele de k litere care incep cu o vocala si se termina cu o consoana.

# include <iostream.h>

# include <stdio.h>

# include <string.h>

int v[100],k,i,n;

char a[100],b[100];

void afisare (int k)

{for(i=1; i<=k; i++)

{b[i-1]=a[v[i]-1];

b[k]=0;}

if(strchr("aeiouAEIOU",b[0])!=0&&strchr("gtbcfhjklmnpqrsvwxyzBCDFGHJKLMNPQRSTVWXYZ",b[k-1])!=0)

            if(strlen(b)>=2)

cout<<b;

cout<<endl;}

int cont (int k)

{for(i=1; i<=k-1; i++)

            if(v[i]==v[k])

                        return 0;

return 1;}

void back(int k)

{int i;

for(i=1; i<=n; i++)

{v[k]=i;

if(cont(k))

{afisare(k);

if(k<n)

            back(k+1);}}}

int main ()

{cin>>a;

n=strlen(a);

back(1);}