📒 From Quora: Some people are happy with a low key life. Happiness is the great equalizer. If they are happy, your expectations no longer matter.&nb...
Sunday, July 3, 2022
Saturday, January 25, 2020
Interrupt Behavior || ARM Cortex
1:17:00 PM
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Interrupt Behavior:-
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Interrupt/Exception Sequence:-
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when an exception takes place:
1- Stacking: push 8 registers' content to stack
2- Vector Fetch: reading the exception handler starting address from the vector table (IVT).
3- Update of Stack Pointer, Linker Register (LR) and Program Counter (PC).
...
Sunday, May 5, 2019
Data Structure
4:24:00 AM
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Data Structure main topics:
----------------------------------
Linked List
Stack
Queue
Tree
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Array: is the best data structure in terms of accessing time as the time complexity of it is O(1) the time required to access any element of it is constant. Problem: Memory usage!
Linked List:
is the best data structure in terms of memory management but in terms of accessing time is O(N). Problem: Accessing time- Time complexity is O(N)!
Types:
...
Saturday, April 27, 2019
Sorting Algorithms
9:49:00 AM
3 comments
Sorting Algorithms:
---------------------------
1- Selection Sort
2- Bubble Sort
3- Merge Sort
============================================================
1- Selection Sort:
- Time Complexity : O(N^2)
---------------------------------------
void swap(int*ele1,int*ele2)
{
int temp;
temp=*ele1;
*ele1=*ele2;
*ele2=temp;
}
/*
in this code: the use of mini variable is to determine the index of the smallest number in the array first then we swap after the inner loop finishes. Without the mini variable, we have to move the swap function...
Searching Algorithm
9:37:00 AM
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Searching Algorithms:
---------------------------
1-Sequential Search
2- Binary Search
----------------------------------------------------------
1- Sequential Search:
-Searching in an array of N.
-Time complexity: O(N)
int sequentialSearch (int * arr, int size, int data)
{
int index= -1;
int i;
for(i=0;i<size;i++)
{
if(arr[i] == data)
{
...
Matrices (mathematics)
8:10:00 AM
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Matrices Addition and Subtraction:-
=============================
************************************************************************
Rule:
You can only Add or subtract two matrices only and only if they have the same number of rows and columns and the result will have the same number of rows and columns.
***************************************************************************
Addition or subtraction is performed between the two elements that have the same location.
Ex:
[ 5 4 ...
