Given a non-negative integer num, repeatedly add all its digits until the result has only one digit. For example: Given num = 38, the process is like: ...
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其他好文 时间:
2016-06-15 15:51:38
阅读次数:
107
题目: Given a non-negative number represented as an array of digits, plus one to the number. The digits are stored such that the most significant digit ...
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其他好文 时间:
2016-06-14 08:51:28
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116
Given a non-negative integer n, count all numbers with unique digits, x, where 0 ≤ x < 10n. Example: Given n = 2, return 91. (The answer should be the ...
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其他好文 时间:
2016-06-14 06:25:21
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241
题目描述: Given a non-negative integer n, count all numbers with unique digits, x, where 0 ≤ x < 10n. 解题分析: 题目要就就是找出 0≤ x < 10n中各位数字都不相同的数的个数。要接触这道题只需要理解: ...
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其他好文 时间:
2016-06-13 20:38:41
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271
1276 - Very Lucky Numbers PDF (English) Statistics Forum Time Limit: 3 second(s) Memory Limit: 32 MB According to some theory 4 and 7 are lucky digits ...
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其他好文 时间:
2016-06-13 01:18:03
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213
题目链接:https://leetcode.com/problems/reverse-integer/
题目:
Reverse digits of an integer.
Example1: x = 123, return 321
Example2: x = -123, return -321
思路:
注意正负情况
算法:
[java] vi...
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其他好文 时间:
2016-06-12 03:26:37
阅读次数:
170
题目链接:https://leetcode.com/problems/add-digits/
题目:
Given a non-negative integer num, repeatedly add all its digits until the result has only
one digit.
For example:
Given num = 38, the p...
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其他好文 时间:
2016-06-12 02:43:27
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135
Sum Root to Leaf Numbers
Total Accepted: 78569 Total
Submissions: 237646 Difficulty: Medium
Given a binary tree containing digits from 0-9 only,
each root-to-leaf path coul...
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其他好文 时间:
2016-06-12 01:56:56
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147
1. 问题描述 Reverse digits of an integer.Example1: x = 123, return 321Example2: x = -123, return -321 click to show spoilers. Have you thought about this? ...
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其他好文 时间:
2016-06-10 11:05:03
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163
题目: Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. An example is the root-to-leaf path 1->2->3 ...
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其他好文 时间:
2016-06-09 21:04:44
阅读次数:
161