"palindrome c++" Code Answer's
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palindrome cpp string
Relieved Rhinoceros
on Jun 10, 2021
string input;
cout << "Please enter a string: ";
cin >> input;
if (input == string(input.rbegin(), input.rend())) {
cout << input << " is a palindrome";
}
Source: stackoverflow.com
palindrome c++
Mero my Hero
on Jan 02, 2021
#include<iostream>
#include<string>
#include<algorithm>
bool IsPalindrome_true_false(const std::string& );
int main ()
{
std::cout<<"Please enter a string:\t";
std::string str;
getline(std::cin, str);
// convert the string from uppercase to lowercase
int i = 0;
while(str[i])
{
if(str[i] == std::toupper(str[i]) && std::isalpha(str[i]) == 1024)
str[i]+= 32;
++i;
}
// looping while string is empty
while(str.empty())
{
std::cout<<"\nPlease enter a string your string is empty:\t";
if(!str.empty())
std::string str;
getline(std::cin, str);
}
std::cout<<"\n"<<std::boolalpha<<IsPalindrome_true_false(str)<<std::endl;
std::cout<<std::endl;
return 0;
}
// check if string is a palindrome and return true or false
bool IsPalindrome_true_false(const std::string& str)
{
int i = 0;
int j = str.length() - 1;
while(i <= j )
{
if(std::isalpha(str[i]) == 0){
++i;
continue;
}else if(std::isalpha(str[j]) == 0){
--j;
continue;
}
if(str[i] != str[j]){
return false;
}
++i;
--j;
}
return true;
}
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