Add selection sort #22

Merged
cromer merged 3 commits from selection_sort into master 2018-11-17 11:56:20 -03:00
9 changed files with 301 additions and 38 deletions
Showing only changes of commit e41b6e9b1b - Show all commits

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@ -1,7 +1,7 @@
CC=gcc
CFLAGS=-Wall -Isrc/include -DDEBUG -g
#LDFLAGS=-lm
SRC=src/sort.c src/random.c src/bubble_sort.c src/timer.c src/count_sort.c src/quick_sort.c src/bitonic_sort.c src/selection_sort.c
SRC=src/sort.c src/random.c src/bubble_sort.c src/timer.c src/count_sort.c src/quick_sort.c src/merge_sort.c src/bitonic_sort.c src/selection_sort.c
OBJ=$(SRC:.c=.o)
all: sort informe

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@ -1,2 +1,20 @@
# Sort
Una programa que deja ejecutar varios algoritmos de ordenamiento.
Una programa que deja ejecutar varios algoritmos de ordenamiento con el próposito de de comprobar la diferencia en rendamiento de los algoritmos.
## Autores
Christopher Cromer
Rodolfo Cuevas
## Compilar
Hay tres blancos disponible para usar con GNU Make:
make sort
Compilar el programa
make test
Comprobar que los algoritmos y programa corren como esperado
make informe
Compilar el informe si pdflatex está disponible en el sistema

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@ -13,6 +13,7 @@
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -25,7 +26,15 @@ void count_sort(int *array, int n) {
int i;
int j;
int *temp = malloc(sizeof(int) * n);
if (temp == NULL) {
fprintf(stderr, "Error: Out of heap space!\n");
exit(5);
}
int *count = malloc(sizeof(int) * n);
if (count == NULL) {
fprintf(stderr, "Error: Out of heap space!\n");
exit(5);
}
memcpy(temp, array, sizeof(int) * n);
for (i = 0; i < n - 1; i++) {
for (j = i + 1; j < n; j++) {

21
src/include/merge_sort.h Normal file
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@ -0,0 +1,21 @@
/*
* Copyright 2018 Christopher Cromer
* Copyright 2018 Rodolfo Cuevas
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SORT_MERGE
#define _SORT_MERGE
void merge_sort(int *array, int n);
void merge_sort_run(int *array, int *temp, int left, int right);
void merge(int *array, int *temp, int prev_left, int prev_middle, int right);
#endif

80
src/merge_sort.c Normal file
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@ -0,0 +1,80 @@
/*
* Copyright 2018 Christopher Cromer
* Copyright 2018 Rodolfo Cuevas
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include "merge_sort.h"
/**
* Usar el algoritmo de merge sort
* @param array El array a ordenar
* @param n El tamaño del array
*/
void merge_sort(int *array, int n) {
int *temp = malloc(sizeof(int)* n);
merge_sort_run(array, temp, 0, n - 1);
free(temp);
}
/**
* Correro el merge sort recursivamente
* @param array El array a ordenar
* @param temp Un array temporario para trabajar
* @param left El lado izquerda a ordenar
* @param right El lado derercha a ordenar
*/
void merge_sort_run(int *array, int *temp, int left, int right) {
if (left != right) {
int middle = (left + right) / 2;
merge_sort_run(array, temp, left, middle);
merge_sort_run(array, temp, middle + 1, right);
merge(array, temp, left, middle + 1, right);
}
}
/**
* Unir los resultados de "dividir y conquistar" de merge sort
* @param array El array a ordenar
* @param temp Un array temporario para trabajar
* @param prev_left El lado izquerda anterior
* @param prev_middle La particion de medio anterior
* @param right El lado derecha
*/
void merge(int *array, int *temp, int prev_left, int prev_middle, int right) {
int i = 0;
int left = prev_left;
int middle = prev_middle - 1;
int far_right = right - left + 1;
while (prev_left <= middle && prev_middle <= right) {
if (array[prev_left] < array[prev_middle]) {
temp[i++] = array[prev_left++];
}
else {
temp[i++] = array[prev_middle++];
}
}
while (prev_left <= middle) {
temp[i++] = array[prev_left++];
}
while (prev_middle <= right) {
temp[i++] = array[prev_middle++];
}
for (i = 0; i < far_right; i++) {
array[left + i] = temp[i];
}
}

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@ -13,22 +13,30 @@
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Usar el algoritmo de quick sort
* @param array El array a ordenar
* @param n El tamaño del array
*/
void quick_sort(int *array, int n) {
if(n<2)return;
if(n < 2) {
return;
}
int i;
int j;
int temp;
int pivote=array[n/2];
for(i=0,j=n-1;;i++,j--){
while(array[i] < pivote) i++;
while(array[j] > pivote) j--;
if(i>=j)break;
temp=array[i];
int pivote = array[n / 2];
for (i =0, j = n - 1;; i++, j--) {
while (array[i] < pivote) i++;
while (array[j] > pivote) j--;
if (i >= j) {
break;
}
temp = array[i];
array[i] = array[j];
array[j] = temp;
array[j] = temp;
}
quick_sort(array,i);
quick_sort(array+i,n-i);
quick_sort(array, i);
quick_sort(array + i, n - i);
}

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@ -17,6 +17,8 @@
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include "random.h"
#include "timer.h"
#include "bubble_sort.h"
@ -24,13 +26,17 @@
#include "quick_sort.h"
#include "bitonic_sort.h"
#include "selection_sort.h"
#include "merge_sort.h"
#define SORT_VERSION "1.0.0"
/**
* El array a ordenar
* El array desordenado
*/
static int *unordered_array;
/**
* El array a ordenar
*/
static int *work_array;
/**
@ -73,26 +79,63 @@ void print_array(int *array, int n) {
* @return Retorna 1 si es exitosa ó 0 si falla
*/
int read_buffer(int *variable) {
char buffer[12];
char buffer[32];
char *check;
while (1) {
if (fgets(buffer, 12, stdin) != NULL) {
if (fgets(buffer, 32, stdin) != NULL) {
if (buffer[strlen(buffer) - 1] == '\n') {
buffer[strlen(buffer) - 1] = '\0';
break;
}
}
}
char **check = malloc(sizeof(char**));
long input = strtol(buffer, check, 10);
if (*check[0] == '\0') {
free(check);
errno = 0;
long input = strtol(buffer, &check, 10);
if (buffer == check) {
// Empty
return 0;
}
else if (errno == ERANGE && input == LONG_MIN) {
// Overflow
return 0;
}
else if (errno == ERANGE && input == LONG_MAX) {
// Underflow
return 0;
}
else if (errno == EINVAL) { /* not in all c99 implementations - gcc OK */
// Base contains unsupported value
// This check is not in all c99 implementations, but does exist in gcc
return 0;
}
else if (errno != 0 && input == 0) {
// Unspecified error
return 0;
}
else if (errno == 0 && !*check) {
// Valid number
if (input > INT_MAX || input < INT_MIN) {
fprintf(stderr, "Error: n tiene que ser menor de 2147483648 y mayor de -2147483649!\n");
return 0;
}
*variable = (int) input;
return 1;
}
else {
free(check);
else if (errno == 0 && *check != 0) {
// Contains non number characters
return 0;
}
else {
return 0;
}
}
/**
* Imprimir un mensaje y salir si n es invalido
*/
void print_invalid_n() {
fprintf(stderr, "Error: El valor de n es invalido!\n");
exit(7);
}
/**
@ -109,7 +152,9 @@ void cleanup() {
* @return Retorna el codigo de error o 0 por exito
*/
int main (int argc, char **argv) {
long long i;
char *check = NULL;
long ninput = 0;
int i;
int n = 10;
int elegir = 0;
int imprimir = 0;
@ -170,10 +215,44 @@ int main (int argc, char **argv) {
selection = 1;
break;
case 'n':
n = atol(optarg);
if (n <= 1) {
fprintf(stderr, "Error: n tiene que ser mayor de 1!\n");
return 3;
errno = 0;
ninput = strtol(optarg, &check, 10);
if (optarg == check) {
// Empty
print_invalid_n();
}
else if (errno == ERANGE && ninput == LONG_MIN) {
// Overflow
print_invalid_n();
}
else if (errno == ERANGE && ninput == LONG_MAX) {
// Underflow
print_invalid_n();
}
else if (errno == EINVAL) { /* not in all c99 implementations - gcc OK */
// Base contains unsupported value
// This check is not in all c99 implementations, but does exist in gcc
print_invalid_n();
}
else if (errno != 0 && ninput == 0) {
// Unspecified error
print_invalid_n();
}
else if (errno == 0 && optarg && !*check) {
// Valid number
if (ninput > INT_MAX || ninput < INT_MIN) {
fprintf(stderr, "Error: n tiene que ser menor de 2147483648!\n");
return 6;
}
n = (int) ninput;
if (n <= 1) {
fprintf(stderr, "Error: n tiene que ser mayor de 1!\n");
return 3;
}
}
else if (errno == 0 && optarg && *check != 0) {
// Contains non number characters
print_invalid_n();
}
break;
case 'e':
@ -199,27 +278,42 @@ int main (int argc, char **argv) {
}
unordered_array = malloc(sizeof(int) * n);
if (unordered_array == NULL) {
fprintf(stderr, "Error: Out of heap space!\n");
exit(5);
}
work_array = malloc(sizeof(int) * n);
if (work_array == NULL) {
fprintf(stderr, "Error: Out of heap space!\n");
exit(5);
}
atexit(cleanup);
// Llenar el array con valores para ordenar después
for (i = 0; i < n; i++) {
if (elegir) {
opt = 0;
fprintf(stdout, "Elegir elemento %lli: ", i + 1);
fprintf(stdout, "Elegir elemento %d: ", i + 1);
while (!read_buffer(&opt)) {
fprintf(stdout, "Número invalido! Tiene que ser mayor de 1!\n");
fprintf(stdout, "Elegir elemento %lli: ", i + 1);
fprintf(stdout, "Número invalido! Tiene que ser mayor de -2147483649 y menor de 2147483648!\n");
fprintf(stdout, "Elegir elemento %d: ", i + 1);
}
unordered_array[i] = opt;
}
else {
unordered_array[i] = gen_rand((n * 10) * -1, n * 10);
unordered_array[i] = gen_rand(-100000000, 100000000);
}
}
if (merge) {
// merge sort
fprintf(stdout, "Merge sort corriendo... ");
fflush(stdout);
memcpy(work_array, unordered_array, sizeof(int) * n);
start_timer();
merge_sort(work_array, n);
stop_timer();
fprintf(stdout, "done\n");
print_timer();
}
if (quick) {

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@ -2,7 +2,8 @@ CC=gcc
CFLAGS=-Wall -I../src/include -DDEBUG -g
SRC=test.c
OBJ=$(SRC:.c=.o)
OBJ+=../src/random.o ../src/bubble_sort.o ../src/timer.o ../src/count_sort.o ../src/quick_sort.o ../src/bitonic_sort.o ../src/selection_sort.o
OBJ+=../src/random.o ../src/bubble_sort.o ../src/timer.o ../src/count_sort.o ../src/quick_sort.o ../src/merge_sort.o ../src/bitonic_sort.o ../src/selection_sort.o
all: test

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@ -20,9 +20,10 @@
#include "random.h"
#include "bubble_sort.h"
#include "count_sort.h"
#include "quick_sort.h"
#include "bitonic_sort.h"
#include "selection_sort.h"
#include "bitonic_sort.h"
#include "merge_sort.h"
#include "quick_sort.h"
static int *test_case;
static int *test_array;
@ -51,7 +52,7 @@ void cleanup() {
* El programa de test
*/
int main(int argc, char **argv) {
int n = 65536;
int n = 32768;
int i;
int gen;
int pass;
@ -59,8 +60,20 @@ int main(int argc, char **argv) {
int failed = 0;
test_case = malloc(sizeof(int) * n);
if (test_case == NULL) {
fprintf(stderr, "Error: Out of heap space!\n");
exit(1);
}
qarray = malloc(sizeof(int) * n);
if (qarray == NULL) {
fprintf(stderr, "Error: Out of heap space!\n");
exit(1);
}
test_array = malloc(sizeof(int) * n);
if (test_array == NULL) {
fprintf(stderr, "Error: Out of heap space!\n");
exit(1);
}
atexit(cleanup);
@ -148,7 +161,7 @@ int main(int argc, char **argv) {
passed++;
}
//test bitonic
// Test bitonic sort
pass = 1;
memcpy(test_array, test_case, sizeof(int) * n);
fprintf(stdout, "\tbitonic sort: ");
@ -167,7 +180,7 @@ int main(int argc, char **argv) {
passed++;
}
// Test selection sort
// Test selection sort
pass = 1;
memcpy(test_array, test_case, sizeof(int) * n);
fprintf(stdout, "\tselection sort: ");
@ -186,6 +199,25 @@ int main(int argc, char **argv) {
passed++;
}
// Test merge sort
pass = 1;
memcpy(test_array, test_case, sizeof(int) * n);
fprintf(stdout, "\tmerge sort: ");
fflush(stdout);
merge_sort(test_array, n);
for (i = 0; i < n; i++) {
if (test_array[i] != qarray[i]) {
fprintf(stdout, "fail\n");
failed++;
pass = 0;
break;
}
}
if (pass) {
fprintf(stdout, "pass\n");
passed++;
}
fprintf(stdout, "%d tests passed\n", passed);
fprintf(stdout, "%d tests failed\n", failed);