This commit is contained in:
Geoffrey Frogeye 2017-03-22 11:29:44 +01:00
parent 93ada685e7
commit 1a5e7af515
5 changed files with 16166 additions and 0 deletions

5
TP9/.gitignore vendored Normal file
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*.o
*.a
tp7
*.o
hash

30
TP9/Makefile Normal file
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#Makefile pour le tp8
#1 seul .c ici
EXEC = hash
#nom du compilo et options de compil
CC = clang
CFLAGS = -Wall -Werror
#chemins et nom de la lib
LIBNAME = liblistechaines.a
PATHLIBA = .
PATHLIBH = .
#flags de compil : le .h à la compil, la lib à l'édition de lien
LDFLAGS = -L$(PATHLIBA) -llistechaines
INCLUDES= -I$(PATHLIBH)
CFILES = $(EXEC).c
OBJS = $(patsubst %.c,%.o,$(CFILES))
all : $(EXEC)
$(EXEC) : $(OBJS)
$(CC) -o $@ $(OBJS) $(LDFLAGS)
%.o: %.c
$(CC) $(CFLAGS) $(INCLUDES) -c $<
clean:
rm *.o *~ $(EXEC)

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TP9/dico.english Normal file

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TP9/hash.c Normal file
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/*Source Code From Laure Gonnord, 2012*/
/*Adapted from Bernard Carre, 2011*/
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
/*List library : reminder, the word have maximal size MAXSIZE*/
#include "listechaines.h"
/*Size of the hashtables */
#define TABLE_SIZE 308
/**Hash functions**/
int asciis(char *word)
{
int i=0;
int h=0;
while(word[i]!='\0')
{
h=h+(word[i]-96);
i++;
}
return h;
}
int hash(char *word)
{
return (asciis(word) % TABLE_SIZE);
}
//TODO : write the following functions
/*Declaration of type Hashtable */
typedef Liste Hashtable[TABLE_SIZE];
/*Initialisation of a given Hashtable*/
void init_ht(Hashtable ht) {
int i;
for (i = 0; i < TABLE_SIZE; i++) {
ht[i] = NULL;
}
}
/*Update of the hashtable : add the given word in the table!*/
void update_ht(char *word, Hashtable ht) {
ajout_alphab(&ht[hash(word)], word);
}
/*Load the file in the internal structure ht */
void load_ht(FILE *fp, Hashtable ht) {
char mot[MAXSIZE];
while (fscanf(fp, "%s", mot) != EOF) {
update_ht(mot, ht);
}
}
/*Count the collisions*/
void collisions(Hashtable ht) {
int i;
for (i = 0; i < TABLE_SIZE; i++) {
/* printf("Indice %3d : %3d élément(s).\n", i, taille(ht[i])); */
printf("%3d %3d\n", i, taille(ht[i]));
}
}
/*Maximal hash of the words of the given file*/
/*returns max_word such that hash(max_word)=hmax*/
void max_hash(FILE *fp, char *max_word, int *hmax) {
char mot[MAXSIZE];
int h;
*hmax = 0;
while (fscanf(fp, "%s", mot) != EOF) {
h = hash(mot);
if (h > *hmax) {
*hmax = h;
strncpy(max_word, mot, MAXSIZE);
}
}
}
/*Main function*/
int main (int argc, char *argv[]) {
if (argc < 2) { // text file is missing ?
fprintf(stderr, "usage: hash <file_name>\n");
} else {
FILE *fp;
fp=fopen(argv[1], "r");
if (fp==NULL) {
fprintf(stderr, "no such file, or unreachable: %s\n", argv[1]);
} else {
Hashtable myHt;
init_ht(myHt);
load_ht(fp, myHt);
// Affichage des collisions
collisions(myHt);
// Affichage du hash maximum
int hmax;
char max_word[MAXSIZE];
rewind(fp);
max_hash(fp, max_word, &hmax);
printf("Mot maximum : %s de somme %d\n", max_word, hmax);
}
}
return 0;
}

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TP9/listechaines.h Symbolic link
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../TP7/listechaines.h