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Programming concepts
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Contents
Fundamentals are important, so here are some.
Sorting Algorithms
A big topic in computer applications is the quick and efficient sorting of data. There are many different sorting techniques, as a programmer one has to balance the algorithm's ease of reading vs the efficiency of said code. Many standard libraries/APIs already have sorting functions already written, however it is still good practice to know some of the theory behind how the different algorithms work.
Bubble Sort
The bubble sort is a very simple to read algorithm that is the standard first sorting method that most programmers learn. The bubble sort gets its name because values are swapped among each other, gradually moving to the top of the list.
//bubble sort example
#include <stdio.h>
#define SIZE 10
int main( void ){
int a[SIZE] = {2,6,9,1,4,15,7,2}; //array to be sorted
int count; //to be used to count passes
int i; //comparisons counter
int hold; //temp variable to hold numbers
//start of bubble sort
for(count=0; count<SIZE-1; count++){//loop to control number of passes
//size is decreased by 1 to prevent array out of bounds error
for(i=0; i<SIZE-1; i++){//comparison loop
if(a[i]>a[i+1]){//if a[i] bigger than a[i+1], swap values
hold = a[i];
a[i] = a[i+1];
a[i+1] = hold;
}//end if
}//end inner for
}//end outer for
//print array
for(i=0; i<SIZE; i++)
printf("%4d", a[i]);
return 0;
}
