Palindrome String

Minimum characters to make string palindrome

string s;
    int len=0,i=1;
    cin>>s;
    int n=s.size();
    vector<int> LPS(n);
    LPS[0]=0;
    while(i<n)
    {
        if(s[i]==s[len]) LPS[i++]=++len;
        else
        {
            if(len==0) LPS[i++]=0;
            else len=LPS[len-1];
        }
    }

Palindrome String

Input: S = "abba"Output: 1Explanation: S is a palindrome
int isPalindrome(string S)
	{
	    string st = S;
	    char temp;
	    int i=0, j= st.length()-1;
	    while(j>i)
	    {
	       if(S[i] != S[j])
	       {
	           return 0;
	       }
	       i++;
	       j--;
	    }
	    return 1;
	}

Source: practice.geeksforgeeks.org

Check if a string is a palindrome

int length = myString.Length;
for (int i = 0; i < length / 2; i++)
{
    if (myString[i] != myString[length - i - 1])
        return false;
}
return true;

Source: stackoverflow.com

Palindrome String

Input: S = "abc" Output: 0Explanation: S is not a palindrome

Source: practice.geeksforgeeks.org

Check if palindrome

function isPalindrome(str) {
  str = str.toLowerCase();
  return str === str.split("").reverse().join("");
}

-1

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