forked from menault/2026_TD1_DEV51_Qualite_Algo
TD01 avec FRAMERY Karl
This commit is contained in:
+42
-12
@@ -26,6 +26,7 @@
|
||||
#define NB_MOTS_VOCAB 7000
|
||||
#define TAILLE_MOT 32
|
||||
#define MAX_MOTS_UNIQUES 20000
|
||||
#define TAILLE_HACHAGE 65536
|
||||
#define GRAINE 20261006UL
|
||||
|
||||
/* ------------------------------------------------------------------------ */
|
||||
@@ -235,29 +236,53 @@ int est_mot_vide(const char *mot)
|
||||
return 0;
|
||||
}
|
||||
|
||||
int chercher_mot(Entree *table, int nb_entrees, const char *mot)
|
||||
unsigned long hacher_mot(const char *mot)
|
||||
{
|
||||
for (int i = 0; i < nb_entrees; i++) {
|
||||
if (egales(table[i].mot, mot))
|
||||
return i;
|
||||
unsigned long h = 2166136261UL;
|
||||
for (int i = 0; mot[i] != '\0'; i++) {
|
||||
h ^= (unsigned char)mot[i];
|
||||
h *= 16777619UL;
|
||||
}
|
||||
return h % TAILLE_HACHAGE;
|
||||
}
|
||||
|
||||
int chercher_mot(const Entree *table, const int *index_mots, const char *mot,
|
||||
int *position)
|
||||
{
|
||||
unsigned long case_hachage = hacher_mot(mot);
|
||||
for (int i = 0; i < TAILLE_HACHAGE; i++) {
|
||||
int indice = index_mots[case_hachage] - 1;
|
||||
if (indice < 0) {
|
||||
*position = (int)case_hachage;
|
||||
return -1;
|
||||
}
|
||||
if (egales(table[indice].mot, mot)) {
|
||||
*position = (int)case_hachage;
|
||||
return indice;
|
||||
}
|
||||
case_hachage = (case_hachage + 1) % TAILLE_HACHAGE;
|
||||
}
|
||||
*position = -1;
|
||||
return -1;
|
||||
}
|
||||
|
||||
void compter_mot(Entree *table, int *nb_entrees, const char *mot)
|
||||
void compter_mot(Entree *table, int *nb_entrees, int *index_mots,
|
||||
const char *mot)
|
||||
{
|
||||
int indice = chercher_mot(table, *nb_entrees, mot);
|
||||
int position;
|
||||
int indice = chercher_mot(table, index_mots, mot, &position);
|
||||
if (indice >= 0) {
|
||||
table[indice].occurrences++;
|
||||
} else {
|
||||
} else if (position >= 0 && *nb_entrees < MAX_MOTS_UNIQUES) {
|
||||
copier(table[*nb_entrees].mot, mot);
|
||||
table[*nb_entrees].occurrences = 1;
|
||||
index_mots[position] = *nb_entrees + 1;
|
||||
(*nb_entrees)++;
|
||||
}
|
||||
}
|
||||
|
||||
void compter_mots_ligne(Entree *table, int *nb_entrees, const char *ligne,
|
||||
long *nb_mots_total)
|
||||
void compter_mots_ligne(Entree *table, int *nb_entrees, int *index_mots,
|
||||
const char *ligne, long *nb_mots_total)
|
||||
{
|
||||
char mot[TAILLE_MOT];
|
||||
int i = 0;
|
||||
@@ -275,7 +300,7 @@ void compter_mots_ligne(Entree *table, int *nb_entrees, const char *ligne,
|
||||
if (k > 0) {
|
||||
(*nb_mots_total)++;
|
||||
if (!est_mot_vide(mot))
|
||||
compter_mot(table, nb_entrees, mot);
|
||||
compter_mot(table, nb_entrees, index_mots, mot);
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -318,9 +343,11 @@ double longueur_moyenne(const Entree *table, int n)
|
||||
|
||||
double ecart_type_longueur(const Entree *table, int n)
|
||||
{
|
||||
double moyenne = longueur_moyenne(table, n);
|
||||
double somme = 0.0;
|
||||
for (int i = 0; i < n; i++) {
|
||||
double ecart = longueur(table[i].mot) - longueur_moyenne(table, n);
|
||||
/* double ecart = longueur(table[i].mot) - longueur_moyenne(table, n);*/
|
||||
double ecart = longueur(table[i].mot) - moyenne;
|
||||
somme += ecart * ecart;
|
||||
}
|
||||
return somme / n; /* variance ; la racine est prise dans main */
|
||||
@@ -412,10 +439,12 @@ int main(void)
|
||||
normaliser_ligne(lignes[i]);
|
||||
|
||||
Entree *table = malloc(MAX_MOTS_UNIQUES * sizeof(Entree));
|
||||
int *index_mots = calloc(TAILLE_HACHAGE, sizeof(int));
|
||||
int nb_entrees = 0;
|
||||
long nb_mots_total = 0;
|
||||
for (int i = 0; i < nb_lignes; i++)
|
||||
compter_mots_ligne(table, &nb_entrees, lignes[i], &nb_mots_total);
|
||||
compter_mots_ligne(table, &nb_entrees, index_mots, lignes[i],
|
||||
&nb_mots_total);
|
||||
|
||||
trier_entrees(table, nb_entrees);
|
||||
|
||||
@@ -445,6 +474,7 @@ int main(void)
|
||||
printf("\nEmpreinte du rapport : %016lx\n", empreinte(rapport));
|
||||
|
||||
free(rapport);
|
||||
free(index_mots);
|
||||
free(table);
|
||||
for (int i = 0; i < nb_lignes; i++)
|
||||
free(lignes[i]);
|
||||
|
||||
Reference in New Issue
Block a user