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Samsung Galaxy S4 – Its a Superphone!!!

            We live in a mobile world.We travel a lot. We always want to be connected with other. Smartphones are one choice which makes it. But how about a super smartphone which replaces desktop, laptop, tablet, iPod  camera etc. We have all the above mentioned electronic products in one form Samsung Galaxy S4… Read More »

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cinemizer OLED – Virtual Reality headset from Carl Zeiss

            Everyone would be aware of Oculus Rift, next generation virtual reality headset. we have been for the consumer version of the product for  a very long time. If you want to get something similar to Oculus Rift, grab cinemizer OLED, 3D Virtual Reality video glasses from from Carl Zeiss… Read More »

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Error in VirtualBox – “This kernel requires the following feature not present on the CPU: pae”

    You may have come across the following error when running virtual machine(Kali Linux Operating System in my case) in VirtualBox. This kernel requires the following feature not present on the CPU: pae     Normally a 32-bit CPU can have access only up to 4GB memory(RAM). But with PAE (Physical Address Extension) enabled… Read More »

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Linked List in C- Reversing Every N Nodes of Linked List using Recursion

DATA STRUCTURES IN C – LINKED LIST (20 PROGRAMS) Try DATA STRUCTURES IN C – LINKED LIST (20 PROGRAMS) Linked List in C- Reversing Every N Nodes of Linked List using Recursion : Input: 1->2->3->4->5->6->7->8 Output: 3->2->1->6->5->4->8->7 Source Code : #include<stdio.h> struct node { int data; struct node *next; }; struct node* reverse(struct node **head,int N) { struct… Read More »

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Elasticsearch – Date/Time(String) Add/Subtract Duration – Days,Months,Years,Hours,Minutes,Seconds

Sample Query : POST /test/test/_search { "query": { "filtered": { "filter": { "bool": { "must": [{ "range": { "dateOrTimeAttribute": { "from": "16:31:15", "to": "16:31:15||+10m" } } }] } } } } } Examples: “16:31:15||+10m” “16:31:15||+1d” “2016-02-02||-1M”  

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