【LeetCode刷题】--7.整数反转

7.整数反转

注意：在推入数字之前，需要判断MIN_VALUE<= res*10+digit<=MAX_VALUE，不满足就返回0

class Solution {public int reverse(int x) {int res = 0;while(x!=0){//需要判断MIN_VALUE<= res*10+digit<=MAX_VALUEif(res < Integer.MIN_VALUE / 10 || res > Integer.MAX_VALUE /10){return 0;}int digit = x % 10;x /= 10;res = res * 10 + digit;}return res;}
}