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function printTree(n){ | |
if(n.leaf1) | |
printTree(n.leaf1); | |
if(n.leaf2) | |
printTree(n.leaf2); | |
if(n.a) | |
console.log(n.a); | |
} | |
printTree(n); // n คือ tree ตามด้านบน |
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{ | |
a: '0', | |
leaf1: { | |
a: '1', | |
leaf1: { | |
a: '2', | |
leaf1: { | |
a: '3', | |
} | |
}, |
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function countElement(array, i, acc){ | |
if(!i) | |
i = 0; | |
if(!acc) | |
acc = {}; | |
if(array.length<=i) | |
return acc; | |
if(!acc[array[i]]) | |
acc[array[i]] = 0; | |
acc[array[i]]++; |
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function F(n, a, b){ | |
if(!a) | |
a = 0; | |
if(!b) | |
b = 1; | |
if(n == 0) | |
return a; | |
return F(n-1, b, a+b); | |
} |
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function F(n){ | |
if(n == 0 || n == 1) | |
return n; | |
return F(n-1) + F(n-2); | |
} |
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function F(n){ | |
var a = 0; | |
var b = 1; | |
var result = 0; | |
for(var i=2; i<=n; i++){ | |
result = a + b; | |
a = b; | |
b = result; | |
} | |
return result; |
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#include "stdafx.h" | |
#include <conio.h> | |
int _tmain(int argc, _TCHAR* argv[]) | |
{ | |
int a[10], i; | |
for (i = 9; i >= -1; i--) { | |
printf("before: i = %d\t", i); |
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#include "stdafx.h" | |
#include <conio.h> | |
int _tmain(int argc, _TCHAR* argv[]) | |
{ | |
int a[10], i; | |
for (i = 0; i <= 10; i++) { | |
printf("before: i = %d\t", i); | |
a[i] = 0; |
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sudo /usr/bin/mongod --replSet foo --port 27017 -fork --quiet --dbpath /data/r0 --logpath /var/log/mongodb0.log | |
sudo /usr/bin/mongod --replSet foo --port 27018 -fork --quiet --dbpath /data/r1 --logpath /var/log/mongodb1.log | |
sudo /usr/bin/mongod --replSet foo --port 27019 -fork --quiet --dbpath /data/r2 --logpath /var/log/mongodb2.log | |
sudo mongo localhost:27017 --eval "config = {_id: 'foo', members: [{_id: 0, host: 'localhost:27017'},{_id: 1, host: 'localhost:27018'},{_id: 2, host: 'localhost:27019'}]};rs.initiate(config);" |
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sudo apt-get update | |
sudo apt-get install openjdk-6-jre-headless -f | |
sudo apt-get install curl | |
sudo apt-get install unzip | |
sudo apt-get install openssh-server | |
sudo curl -OL http://github.com/downloads/elasticsearch/elasticsearch/elasticsearch-0.19.8.zip | |
sudo unzip elasticsearch-* && rm elasticsearch-*.zip | |
cd elasticsearch-0.19.8 | |
sudo mkdir /usr/local/elasticsearch |