链接:https://leetcode-cn.com/problems/plus-one/
class Solution {
public int[] plusOne(int[] digits) {
int carry=1;
for(int i=digits.length-1;i>=0;i--){
int sum=digits[i]+carry;
digits[i]=sum%10;
carry=sum/10;
if(carry==0){
return digits;
}
}
int[] nums=new int[digits.length+1];
nums[0]=1;
return nums;
}
}