Letter Combinations of a Phone Number Given a digit string, return all possible letter combinations that the number could represent. A mapping of digi ...
分类:
编程语言 时间:
2019-03-19 14:56:41
阅读次数:
148
[题目链接] https://codeforces.com/contest/715/problem/C [算法] 考虑点分治 一条路径(x , y)合法当且仅当 : d(x) * 10 ^ dep(x) + d(y) = 0(mod m) , 其中d(u)表示u到分治重心路径上数字拼接起来所形成的数 ...
分类:
其他好文 时间:
2019-03-17 01:16:06
阅读次数:
163
Now an emergent task for you is to open a password lock. The password is consisted of four digits. Each digit is numbered from 1 to 9. Each time, you ...
分类:
其他好文 时间:
2019-03-10 12:19:56
阅读次数:
150
题目描述 Now an emergent task for you is to open a password lock. The password is consisted of four digits. Each digit is numbered from 1 to 9.Each time, ...
分类:
其他好文 时间:
2019-03-07 17:37:58
阅读次数:
199
地址:https://github.com/JosephPai/KaggleSolution/tree/master/DigitRec 数据集:https://www.kaggle.com/c/digit-recognizer/data import pandas as pd import matp ...
分类:
其他好文 时间:
2019-03-03 17:38:57
阅读次数:
215
Write a program that finds and displays all pairs of 5-digit numbers that between them use the digits 0 through 9 once each, such that the first numbe ...
分类:
其他好文 时间:
2019-02-25 23:10:32
阅读次数:
209
```C++ include int main(){ int result = 0,thissum = 0, N, digit; scanf("%d", &N); for(int i = 0; i result) result = thissum; if(thissum ...
分类:
其他好文 时间:
2019-02-24 01:03:14
阅读次数:
180
3.统计数字(Digit Count) 计算数字 k 在 0 到 n 中的出现的次数,k 可能是 0~9 的一个值。 首先是,惯用思维,2个循环解决,这样做的时间复杂度为O(n*2) 提交成功后,看到讨论区有时间复杂度为O(log(n))的解法,搞懂思路后,终于自己实现了 本题求k出现的次数,其实可 ...
分类:
编程语言 时间:
2019-02-24 00:23:32
阅读次数:
249
https://leetcode.com/problems/add-digits/ Given a non-negative integer num, repeatedly add all its digits until the result has only one digit. Example ...
分类:
其他好文 时间:
2019-02-21 00:09:33
阅读次数:
139
Chinese people think of '8' as the lucky digit. Bob also likes digit '8'. Moreover, Bob has his own lucky number L. Now he wants to construct his luck ...
分类:
其他好文 时间:
2019-02-16 19:27:03
阅读次数:
197