Array Data Structure

Array of integers with Insert, Remove, Update, Erase, Switch, Reverse functions; Sorting functions like BubbleSort, InsertionSort and SelectionSort; and Search functions like FindMin, FindMax, Frequency count, etc.
This commit is contained in:
Leonardo 2018-03-19 20:09:22 -03:00
parent 72e38936c2
commit 172a778057
5 changed files with 553 additions and 13 deletions

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#include<stdio.h>
#include <stdio.h>
#include <stdlib.h>
#define MAXBITS 100
int main()
{
int n,re,a[10000],j;
printf("\nenter the no ");
scanf("%d",&n);
// input of the user
int inputNumber;
// for the remainder
int re;
// contains the bits 0/1
int bits[MAXBITS];
// for the loops
int j;
int i=0;
while(n>0)
printf("\t\tConverter decimal --> binary\n\n");
// reads a decimal number from the user.
printf("\nenter a positive integer number: ");
scanf("%d",&inputNumber);
// make sure the input number is a positive integer.
if (inputNumber < 0)
{
printf("only positive integers >= 0\n");
return 1;
}
// actual processing
while(inputNumber>0)
{
re=n%2;
a[i]=re;
n=n/2;
// computes the remainder by modulo 2
re = inputNumber % 2;
// computes the quotient of division by 2
inputNumber = inputNumber / 2;
bits[i] = re;
i++;
}
int k;
k=i-1;
printf("\n the number in binary is: ");
for(j=k;j>=0;j--)
// iterates backwards over all bits
for(j=i-1; j>=0; j--)
{
printf("%d",a[j]);
printf("%d",bits[j]);
}
return(0);
// for the case the input number is 0
if (i == 0)
{
printf("0");
}
return 0;
}

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/*
* CArray.c
*
* Author: Leonardo Vencovsky
* Created on 19/03/2018
*
* Modified by: Leonardo Vencovsky
* Last modified: 19/03/2018
*
* Array Implementations in C
*
* Compiled in Visual Studio 2017
*
*/
/*
Return Codes
-1 - Array Erased
0 - Success
1 - Invalid Position
2 - Position already initialized (use update function)
3 - Position not initialized (use insert function)
4 - Position already empty
5 - Array is full
*/
#include <stdio.h>
#include <stdlib.h>
#include "CArray.h"
void swap(CArray *array, int position1, int position2);
CArray * getCArray(int size)
{
CArray *array = (CArray *) malloc(sizeof(CArray));
array->array = (int *) malloc(sizeof(int) * size);
array->size = size;
int i;
for (i = 0; i < size; i++) {
array->array[i] = 0;
}
return array;
}
int insertValueCArray(CArray *array, int position, int value)
{
if (position >= 0 && position < array->size) {
if (array->array[position] == 0) {
array->array[position] = value;
return 0; // OK
}
else return 2; // Position already initialized (use update function)
}
return 1; // Invalid position
}
int removeValueCArray(CArray *array, int position)
{
if (position >= 0 && position < array->size) {
if (array->array[position] != 0) {
array->array[position] = 0;
}
else return 4; // Position already empty
}
return 1; // Invalid position
}
int pushValueCArray(CArray *array, int value)
{
int i;
int ok = 0;
for (i = 0; i < array->size; i++) {
if (array->array[i] == 0) {
array->array[i] = value;
ok = 1;
break;
}
}
if (ok == 1) return 0;
else return 5; // Array is full
}
int updateValueCArray(CArray *array, int position, int value)
{
if (position >= 0 && position < array->size) {
if (array->array[position] != 0) {
}
else return 3; // Position not initialized (use insert function)
}
return 1; // Invalid Position
}
int eraseCArray(CArray *array)
{
int i;
for (i = 0; i < array->size; i++) {
array->array[i] = 0;
}
return 0;
}
int switchValuesCArray(CArray *array, int position1, int position2)
{
if (position1 >= 0 && position1 < array->size
&& position2 >= 0 && position2 < array->size) {
int temp = array->array[position1];
array->array[position1] = array->array[position2];
array->array[position2] = temp;
}
return 1; // Invalid Position
}
int reverseCArray(CArray *array)
{
int i;
for (i = 0; i < array->size / 2; i++) {
swap(array, i, array->size - i - 1);
}
return 0;
}
int displayCArray(CArray *array)
{
int i;
printf("\nC ARRAY\n");
for (i = 0; i < array->size; i++) {
printf("%d ", array->array[i]);
}
printf("\n");
return 0;
}
int blenderCArray(CArray *array)
{
srand(time(NULL) * array->size);
int i;
int total = array->size * 100;
for (i = 0; i < total; i++) {
swap(array, rand() % array->size, rand() % array->size);
}
return 0;
}
CArray * getCopyCArray(CArray *arr)
{
CArray *array = (CArray *)malloc(sizeof(CArray));
array->array = (int *)malloc(sizeof(int) * arr->size);
array->size = arr->size;
int i;
for (i = 0; i < arr->size; i++) {
array->array[i] = arr->array[i];
}
return array;
}
void swap(CArray *array, int position1, int position2)
{
int temp = array->array[position1];
array->array[position1] = array->array[position2];
array->array[position2] = temp;
}
int bubbleSortCArray(CArray *array)
{
int i, j;
for (i = 0; i < array->size - 1; i++) {
for (j = 0; j < array->size - i - 1; j++) {
if (array->array[j] > array->array[j + 1]) {
swap(array, j, j + 1);
}
}
}
return 0;
}
int selectionSortCArray(CArray *array)
{
int i, j, min;
for (i = 0; i < array->size - 1; i++) {
min = i;
for (j = i + 1; j < array->size; j++)
if (array->array[j] < array->array[min]) min = j;
swap(array, min, i);
}
return 0;
}
int insertionSortCArray(CArray *array)
{
int i, j, num;
for (i = 1; i < array->size; i++) {
num = array->array[i];
j = i - 1;
while (j >= 0 && array->array[j] > num)
{
array->array[j + 1] = array->array[j];
j--;
}
array->array[j + 1] = num;
}
return 0;
}
int valueOcurranceCArray(CArray *array, int value)
{
int i, total = 0;
for (i = 0; i < array->size; i++) {
if (array->array[i] == value) total++;
}
return total;
}
CArray * valuePositionsCArray(CArray *array, int value)
{
int i, j = 0;
int total = valueOcurranceCArray(array, value);
CArray *resultArray = getCArray(total);
for (i = 0; i < array->size; i++) {
if (array->array[i] == value) {
// Hopefully this won't overflow
resultArray->array[j] = i;
j++;
}
}
return resultArray;
}
int findMinCArray(CArray *array)
{
int i;
int min = array->array[0];
for (i = 1; i < array->size; i++) {
if (array->array[i] < min) {
min = array->array[i];
}
}
return min;
}
int findMaxCArray(CArray *array)
{
int i;
int max = array->array[0];
for (i = 1; i < array->size; i++) {
if (array->array[i] > max) {
max = array->array[i];
}
}
return max;
}

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/*
* CArray.h
*
* Author: Leonardo Vencovsky
* Created on 18/03/2018
*
* Modified by: Leonardo Vencovsky
* Last modified: 19/03/2018
*
* Header for Array in C
*
* Compiled in Visual Studio 2017
*
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
typedef struct CArray {
int *array;
int size;
} CArray;
// +-------------------------------------+
// | Returns array |
// +-------------------------------------+
CArray * getCArray(int size);
CArray * getCopyCArray(CArray *array);
// +-------------------------------------+
// | Input / Output |
// +-------------------------------------+
int insertValueCArray(CArray *array, int position, int value);
int removeValueCArray(CArray *array, int position);
int pushValueCArray(CArray *array, int value);
int updateValueCArray(CArray *array, int position, int value);
// +-------------------------------------+
// | Erase |
// +-------------------------------------+
int eraseCArray(CArray *array);
// +-------------------------------------+
// | Switching |
// +-------------------------------------+
int switchValuesCArray(CArray *array, int position1, int position2);
int reverseCArray(CArray *array);
// +-------------------------------------+
// | Sorting |
// +-------------------------------------+
int bubbleSortCArray(CArray *array);
int selectionSortCArray(CArray *array);
int insertionSortCArray(CArray *array);
int blenderCArray(CArray *array);
// +-------------------------------------+
// | Searching |
// +-------------------------------------+
int valueOcurranceCArray(CArray *array, int value);
CArray * valuePositionsCArray(CArray *array, int value);
int findMaxCArray(CArray *array);
int findMinCArray(CArray *array);
// +-------------------------------------+
// | Display |
// +-------------------------------------+
int displayCArray(CArray *array);
#ifdef __cplusplus
}
#endif

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/*
* CArrayTests.c
*
* Author: Leonardo Vencovsky
* Created on 19/03/2018
*
* Modified by: Leonardo Vencovsky
* Last modified: 19/03/2018
*
* Test Cases for Array Implementations in C
*
* Compiled in Visual Studio 2017
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "CArray.h"
int CArrayTests()
{
printf("\n");
printf(" +-------------------------------------+\n");
printf(" | |\n");
printf(" | C Array |\n");
printf(" | |\n");
printf(" +-------------------------------------+\n");
printf("\n");
CArray *array = getCArray(10);
int i;
for (i = 0; i < array->size; i++) {
insertValueCArray(array, i, i+1);
}
displayCArray(array);
printf("\nCode: %d\n", pushValueCArray(array, 11)); // 5
for (i = 0; i < array->size; i++) {
removeValueCArray(array, i);
}
displayCArray(array);
printf("\nCode: %d", removeValueCArray(array, -1)); // 1
printf("\nCode: %d\n", insertValueCArray(array, -1, 1)); // 1
// Erase
for (i = 0; i < array->size; i++) {
insertValueCArray(array, i, i + 1);
}
eraseCArray(array);
displayCArray(array); // Should give all 0s
// Switching
CArray *arr = getCArray(13);
for (i = 0; i < arr->size; i++) {
insertValueCArray(arr, i, i + 1);
}
displayCArray(arr);
for (i = 0; i < arr->size / 2; i++) {
switchValuesCArray(arr, i, arr->size - i - 1);
}
displayCArray(arr);
// Or simply...
reverseCArray(arr);
displayCArray(arr);
// Sorting
srand(time(NULL));
CArray *barray = getCArray(20);
for (i = 0; i < barray->size; i++) {
insertValueCArray(barray, i, rand());
}
CArray *carray = getCopyCArray(barray);
CArray *darray = getCopyCArray(barray);
printf("\nNot sorted Array:");
displayCArray(barray);
printf("\nBubble Sort:");
clock_t begin1 = clock();
// Timing bubble sort
bubbleSortCArray(barray);
clock_t end1 = clock();
double time_spent1 = (double)(end1 - begin1) / CLOCKS_PER_SEC;
displayCArray(barray);
printf("\nSelection Sort:");
clock_t begin2 = clock();
// Timing selection sort
selectionSortCArray(carray);
clock_t end2 = clock();
double time_spent2 = (double)(end2 - begin2) / CLOCKS_PER_SEC;
displayCArray(carray);
printf("\nInsertion Sort:");
clock_t begin3 = clock();
// Timing insertion sort
insertionSortCArray(darray);
clock_t end3 = clock();
double time_spent3 = (double)(end3 - begin3) / CLOCKS_PER_SEC;
displayCArray(carray);
// Descending order
reverseCArray(barray);
// displayCArray(barray);
// printf("\nBlender:");
// blenderCArray(barray);
// displayCArray(barray);
printf("\nTotal time spent for bubble sort: %lf seconds", time_spent1);
printf("\nTotal time spent for selection sort: %lf seconds", time_spent2);
printf("\nTotal time spent for insertion sort: %lf seconds", time_spent3);
// Searching
CArray *aarray = getCArray(1000);
for (i = 0; i < aarray->size; i++) {
insertValueCArray(aarray, i, rand() % 100);
}
int j = 24;
printf("\nOccurrences of the number %d in the array: %d", j,
valueOcurranceCArray(aarray, j));
printf("\nAnd its positions:\n");
CArray *positions = valuePositionsCArray(aarray, j);
displayCArray(positions);
// This should all give value of j
printf("\nAll %d s", j);
for (i = 0; i < positions->size; i++) {
printf("\nPosition %d has a value of %d",
positions->array[i], aarray->array[positions->array[i]]);
}
printf("\nThe list has a minimum value of %d and a maximum value of %d",
findMinCArray(aarray), findMaxCArray(aarray));
insertionSortCArray(aarray);
// displayCArray(aarray);
free(arr);
free(array);
free(aarray);
free(barray);
free(carray);
free(darray);
printf("\n");
return 0;
}

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# Array
Simple array of integers. With I/O functions, Sort Functions and Search Functions.
## Structure
```C
typedef struct CArray {
int *array;
int size;
} CArray;
```
## Files
* CArray.c - Array Implementations
* CArray.h - Import for Usage
* CArrayTests.c - Usage Examples and tests