title:
Largest palindrome product
Problem 4
A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91
99.
Find the l...
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其他好文 时间:
2014-06-07 01:24:27
阅读次数:
398
title:
The sum of the squares of the first ten natural numbers is,
12 + 22 + ... + 102 = 385
The square of the sum of the first ten natural numbers is,
(1 + 2 + ... + 10)2 = 552 = 3025
Hence ...
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其他好文 时间:
2014-06-05 12:03:29
阅读次数:
243
Problem Description:
Say you have an array for which the ith element is the price of a given stock on day i.
Design an algorithm to find the maximum profit. You may complete at most two transa...
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其他好文 时间:
2014-06-05 09:33:52
阅读次数:
342
题目:
链接:点击打开链接
题意:
中文题
算法:
思路:
赤裸裸的最小生成树。。
代码:
#include
#include
using namespace std;
struct node{
int u,v,w;
} e[110];
int p[110];
int n,m,sum,ans;
int cmp(node...
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其他好文 时间:
2014-06-05 03:50:23
阅读次数:
232
Given an array S of n integers, are there elements
a, b, c, and d in S such that a +
b + c + d = target?
Find all unique quadruplets in the array which gives the sum of target.
Note:
...
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其他好文 时间:
2014-06-05 00:34:06
阅读次数:
240
??
Description
The country is facing a terrible civil war----cities in the country are divided into two parts supporting different leaders. As a merchant, Mr. M does not pay attention to politic...
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其他好文 时间:
2014-06-05 00:16:43
阅读次数:
266
当一道题目,使用__int64超时,使用int就能A的时候,我想,这个题,不是一个好题。。。。。
add[i]:记录加的lazy标记
mul[i]:记录乘的lazy标记
num[i]:记录数的lazy标记
sum[i][j]:第i段,j次方的和。
除去lazy标记的下放,这完全就是一道水的线段树的题目。。。
lazy标记如何下放呢?
1,首先查看num标记,如果存在,果断下放。
2...
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其他好文 时间:
2014-06-04 21:41:27
阅读次数:
343
逆序数的性质。1. 暴力解 1 #include 2 3 #define MAXNUM 5005 4
5 int a[MAXNUM]; 6 7 int main() { 8 int n; 9 int i, j, sum, min;10 11 while
(scanf(...
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其他好文 时间:
2014-05-31 07:50:50
阅读次数:
170
DescriptionLet us consider sets of positive
integers less than or equal ton. Note that all elements of a set are different.
Also note that the order o...
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其他好文 时间:
2014-05-31 05:12:49
阅读次数:
246
Problem StatementIn the Republic of Nlogonia
there are N cities. For convenience, the cities are numbered 0 through N-1. For
each two different cities...
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其他好文 时间:
2014-05-31 00:47:40
阅读次数:
364