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projecteuler---->problem=32----Pandigital products
Problem 32 We shall say that an n-digit number is pandigital if it makes use of all the digits 1 to n exactly once; for example, the 5-digit number, 15234, is 1 through 5 pandigital. The produ...
分类:其他好文   时间:2014-08-22 16:23:19    阅读次数:178
【LeetCode】Reverse Integer (2 solutions)
Reverse IntegerReverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321click to show spoilers.Have you thought about th...
分类:其他好文   时间:2014-08-21 19:07:04    阅读次数:142
projecteuler---->problem=30----Digit fifth powers
Problem 30 Surprisingly there are only three numbers that can be written as the sum of fourth powers of their digits: 1634 = 14 + 64 + 34 + 44 8208 = 84 + 24 + 04 + 84 9474 = 94 + 44 + 74 + 44...
分类:其他好文   时间:2014-08-21 09:48:04    阅读次数:251
Reverse Integer
Reverse digits of an integer.Example1:x = 123, return 321Example2:x = -123, return -321click to show spoilers.Have you thought about this?Here are som...
分类:其他好文   时间:2014-08-19 23:54:05    阅读次数:245
Restore IP Addresses
Given a string containing only digits, restore it by returning all possible valid IP address combinations.For example:Given "25525511135",return ["255...
分类:其他好文   时间:2014-08-19 20:40:45    阅读次数:203
Digital Roots
Digital RootsTime Limit: 1000ms Memory limit: 65536K有疑问?点这里^_^题目描述The digital root of a positive integer is found by summing the digits of the integer...
分类:其他好文   时间:2014-08-18 22:00:43    阅读次数:228
Java进阶之欧拉工程 第十五篇【2的1000次方各位之和为多少】
题目如下: 215 = 32768 并且其各位之和为 is 3 + 2 + 7 + 6 + 8 = 26. 21000 的各位数之和是多少? 原题如下: 215 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26. What is the sum of the digits of the number 210...
分类:编程语言   时间:2014-08-18 16:28:02    阅读次数:272
UVa 993 - Product of digits
题目:给你一个整数n,求一个数m,使得m的每个位数的乘积是n,求最小的m。 分析:贪心。直接从9到2枚举所有的因数,统计即可。如果还有大于9的素数这输出-1。 说明:今天Timus发邮件,说我的这个题目,在那边的解错了╮(╯▽╰)╭。 #include #include #include using namespace std; int save[10]; int main()...
分类:其他好文   时间:2014-08-18 14:36:42    阅读次数:266
uva---(11549)CALCULATOR CONUNDRUM
Problem C CALCULATOR CONUNDRUMAlice got a hold of an old calculator that can display n digits. She was bored enough to come up with the following time...
分类:其他好文   时间:2014-08-18 12:07:54    阅读次数:269
Restore IP Addresses
Given a string containing only digits, restore it by returning all possible valid IP address combinations....
分类:其他好文   时间:2014-08-17 22:48:32    阅读次数:217
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