LeetCode | Palindrome Number
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Palindrome Number
Total Accepted: 59751 Total Submissions: 200784My SubmissionsDetermine whether an integer is a palindrome. Do this without extra space.
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思路:就是那样QAQ,很普通的回文判断,WA点:负数不是回文数。
实现代码:
<span style="font-size:12px;">class Solution {public: bool isPalindrome(int x) { if(x<0) return false; int cnt=0; int a[100]; memset(a,0,sizeof(a)); while(x) { int c=x%10; a[cnt++]=c; x/=10; } int i,j; for(i=0,j=cnt-1;i<j;i++,j--) { if(a[i]!=a[j]) return false; } return true; }};</span>
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