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/*
给一个int array代表一个数字,实现+1这个功能
source : http://www.mitbbs.com/article_t/JobHunting/32705311.html
G tel
*/
/*
第一道,给一个int array代表一个数字,实现+1这个功能。
和对方交流第一个数字会不会是加号或者减号,对方答曰不会,
就是一个正数,就开始写。
如果有问题就是有个Arrays.copy的api没有记清楚,
跟对方说有这么个api大致是这样的,作这样的事情,
对方说好,lets pretend there is an api that would do this.
我心下说本来就有,我不记得了...
PS,第一次写的要历遍所有index,后来他说不用,我想了想说对,
应该碰到9以下就stop.修改.
对方对我把最后一位单独拎出来也不满意,说放loop里面.我自己觉得是小问题.
*/
/* ?
https://oj.leetcode.com/problems/plus-one/
*/
/*
Maybe he wanted this:
void plusOne(vector<int> & A) {
int i = (int)A.size() - 1;
while (i >= 0 && A[i] == 9)
A[i--] = 0;
if (i >= 0)
++A[i];
else
A.insert(A.begin(), 1);
}
*/
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