Fill in the missing parts of the program below to solve the problem as stated above. Do not add any additional lines of codes

# include

___________ //1

using namespace std;

// Check if a string is a palindrome

bool isPalindrome(const string& s);

int main()

{

string s;

// Prompt the user to enter a string

cout << Enter a string: ;

getline(cin, s);

if( ___________ ) //2

cout << s << is a palindrome << endl;

else

cout << s << is not a palindrome << endl;

return 0;

}

bool isPalindrome(const string& s)

{

int low = 0;

int high = _____ ; //3

while ( ___________) //4

{

if (toupper(s[low]) != toupper(s[high]))

___________ // 5

low ++;

high--;

}

return true;

}