slides/cours_3.md

 ---
-title: "Introduction aux algorithmes"
-date: "2023-10-03"
+title: "Introduction aux algorithmes III"
+date: "2024-09-30"
 ---
 
 # Rappel (1/2)
@@ -258,6 +258,7 @@ for (int i = 0; i < SIZE; ++i) {
     tab[i] = rand() / (double)RAND_MAX * 10.0 - 5.0; 
     // tab[i] contient un double dans [-5;5]
 }
+int other_tab[4] = {0}; // pareil que {0, 0, 0, 0}
 ```
 
 # Recherche du minimum dans un tableau (1/2)

slides/exemples/anagram.c

+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#define SIZE 10
+
+int tab_find_min_index(int i, int size, char tab[size]) {
+    int i_min = i;
+    for (int j = i + 1; j < (int)strlen(tab); ++j) {
+        if (tab[j] < tab[i_min]) {
+            i_min = j;
+        }
+    }
+    return i_min;
+}
+
+void swap(int i, int j, char tab[]) {
+    char tmp = tab[i];
+    tab[i] = tab[j];
+    tab[j] = tmp;
+}
+
+void tab_selection_sort(int size, char tab[size]) {
+    for (int i = 0; i < (int)strlen(tab); ++i) {
+        int i_min = tab_find_min_index(i, size, tab);
+
+        // échange tab[i] et tab[j]
+        if (i_min != i) {
+            swap(i, i_min, tab);
+        }
+    }
+}
+
+bool tab_is_sorted(int size, char tab[size]) {
+    for (int i = 1; i < size; ++i) {
+        if (tab[i - 1] > tab[i]) {
+            return false;
+        }
+    }
+    return true;
+}
+
+int main() {
+    // allocate tab
+    char tab_lhs[SIZE] = "tutut";
+    char tab_rhs[SIZE] = "tutta";
+    printf("Are %s and %s anagrams? ", tab_lhs, tab_rhs);
+    tab_selection_sort(SIZE, tab_lhs);
+    tab_selection_sort(SIZE, tab_rhs);
+    printf("Are %s and %s anagrams? ", tab_lhs, tab_rhs);
+    int is_equal = strcmp(tab_lhs, tab_rhs);
+    printf("%d", is_equal);
+}