题目链接
题意：给定一个整数n，求∑f(i, j)(1
思路：依题意，我们可以得到一个递推式ans[n] = ans[n - 1] + ∑f(n, j)(1
对于∑f(n, j)而言，我们用aj(1 <= j <= n)表示gcd(n/k, j/k)所能取到的值的集合，那么可以得到∑f(n, j) = (n * 1 / a1 + n * 2 / a2 + ... + ...
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其他好文 时间：
2014-08-12 22:07:34
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218
Problem Description
FSF has programmed a game.
In this game, players need to divide a rectangle into several same squares.
The length and width of rectangles are integer, and of course the side len...
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其他好文 时间：
2014-08-12 22:06:04
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248
FSF’s gameProblem DescriptionFSF has programmed a game.In this game, players need to divide a rectangle into several same squares.The length and width...
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其他好文 时间：
2014-08-12 21:51:44
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276
Problem DescriptionFSF is addicted to a stupid tower defense game. The goal of tower defense games is to try to stop enemies from crossing a map by bu...
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其他好文 时间：
2014-08-12 21:41:14
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200
Stupid Tower DefenseProblem DescriptionFSF is addicted to a stupid tower defense game. The goal of tower defense games is to try to stop enemies from ...
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其他好文 时间：
2014-08-12 21:31:34
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183
1、掌握ClippingNode的原理与使用
2、创建Cocos工程
3、在HelloWorld.cpp代码中添加如下代码：
auto clip = ClippingNode::create();//创建裁剪节点
auto gameTitle = Sprite::create("game_title.png");
clip->setStencil(gameTitle);//设...
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其他好文 时间：
2014-08-12 19:04:24
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196
1666: [Usaco2006 Oct]Another Cow Number Game 奶牛的数字游戏Time Limit:5 SecMemory Limit:64 MBSubmit:502Solved:432[Submit][Status]Description奶牛们又在玩一种无聊的数字游戏。输...
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其他好文 时间：
2014-08-12 18:10:04
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212
Problem Description
Let's play a card game called Gap.
You have 28 cards labeled with two-digit numbers. The first digit (from 1 to 4) represents the suit of the card, and the second digit (from 1 ...
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其他好文 时间：
2014-08-12 10:24:14
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379
package card;public class Game implements Runnable{ int numPlayers; int startNumber; //players and hands seperate so players can't change the...
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其他好文 时间：
2014-08-12 03:12:34
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285
Beat 'Em Up Game Starter Kit (横版格斗游戏) cocos2d-x游戏源码出售...
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其他好文 时间：
2014-08-12 00:42:33
阅读次数：
268
