leetcode-daily/cpp/2204/220402.cpp

25 lines
589 B
C++

#include <string>
/**
* 680. Valid Palindrome II
* Given a string s, return true if the s can be palindrome after deleting at most one character from it.
*/
class Solution {
private:
static bool isPalindrome(const std::string& basicString, int i, int j) {
for (; i < j; ++i, --j)
if (basicString[i] != basicString[j])
return false;
return true;
}
public:
static bool validPalindrome(const std::string& s) {
for (int i = 0, j = s.size() - 1; i < j; ++i, --j)
if (s[i] != s[j])
return isPalindrome(s, i + 1, j) || isPalindrome(s, i, j - 1);
return true;
}
};