Are the following languages over {a, b} regular? If they are
then prove it. If they...
Are the following languages over {a, b} regular? If they are
then prove it. If they are not prove it with the Pumping Lemma
{an bm | m != n, n >= 0}
{w | w contains the substring ‘aaa’ once and only once }
Clear concise details please, if the language is regular,
provide a DFA/NFA along with the regular expression. Thank you.
Will +1
Let S={u,v,w}S={u,v,w} be a linearly independent set in a vector
space V. Prove that the set...
Let S={u,v,w}S={u,v,w} be a linearly independent set in a vector
space V. Prove that the set S′={3u−w,v+w,−2w}S′={3u−w,v+w,−2w} is
also a linearly independent set in V.
Consider permutations of the 26-character lowercase alphabet
Σ={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}.
In how many of these permutations do
a,b,c...
Consider permutations of the 26-character lowercase alphabet
Σ={a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z}.
In how many of these permutations do
a,b,c occur consecutively and in that
order?
In how many of these permutations does a appear before
b and b appear before c?
2. Let A = {p, q, r, s}, B = {k, l, m, n}, and C...
2. Let A = {p, q, r, s}, B = {k, l, m, n}, and C = {u, v, w},
Define f : A→B by f(p) = m, f(q) = k, f(r) = l, and f(s) = n, and
define g : B→C by g(k) = v, g(l) = w, g(m) = u, and g(n) = w. Also
define h : A→C by h = g ◦ f. (a) Write out the values of h. (b) Why
is it that...
Let S denote the set of all possible finite binary strings, i.e.
strings of finite length...
Let S denote the set of all possible finite binary strings, i.e.
strings of finite length made up of only 0s and 1s, and no other
characters. E.g., 010100100001 is a finite binary string but
100ff101 is not because it contains characters other than 0, 1.
a. Give an informal proof arguing why this set should be
countable. Even though the language of your proof can be informal,
it must clearly explain the reasons why you think the set should...
Strings
The example program below, with a few notes following, shows how
strings work in C++....
Strings
The example program below, with a few notes following, shows how
strings work in C++.
Example 1:
#include <iostream> using namespace std; int main()
{
string s="eggplant";
string t="okra";
cout<<s[2]<<endl;
cout<< s.length()<<endl; //prints 8
cout<<s.substr(1,4)<<endl; //prints ggpl...kind of
like a slice, but the second num is the length of the
piece
cout<<s+t<<endl; //concatenates: prints eggplantokra
cout<<s+"a"<<endl;
cout<<s.append("a")<<endl; //prints eggplanta: see
Note 1 below
//cout<<s.append(t[1])<<endl; //an error; see
Note 1
cout<<s.append(t.substr(1,1))<<endl; //prints
eggplantak; see Note 1
cout<<s.find("gg")<<endl;
if (s.find("gg")!=-1)
cout<<"found...