diff --git a/student_rank.C b/student_rank.C
new file mode 100644
index 0000000..a2ed843
--- /dev/null
+++ b/student_rank.C
@@ -0,0 +1,19 @@
+#include <stdlib.h>
+void sort_students(int** students_rank, int** students_array, int students_number, int grades_number)
+{
+    int i = 0, j = 0;
+    for(i = 0; i < grades_number; i++)  // boucle sur les matières
+    {
+        int * grades = (int*) malloc(students_number*sizeof(int));  // allocation de mémoire
+        for(j = 0; j < students_number; j++)  // boucle sur les étudiants
+        {
+            grades[j] = students_array[j][i];  // copie des notes
+        }
+        bubblesort(grades,students_number);  // tri des notes
+        for(j = 0; j < students_number; j++)  // attribution du rang
+        {
+            students_rank[j][i] = find_rank_student(students_array[j][i],grades,students_number);  // recherche du rang
+        }
+        free(grades);  // libération de la mémoire allouée
+    }
+}