Determine whether an integer is a palindrome. Do this without extra space.
class Solution {
public:
bool isPalindrome(int x) {
if(x < 0 || (x % 10 == 0 && x != 0)) {
return false;
}
int revertedNumber = 0;
while(x > revertedNumber) {
revertedNumber = revertedNumber * 10 + x % 10;
x /= 10;
}
return x == revertedNumber || x == revertedNumber/10;
}
};
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本文标题：2. Palindrome Number
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