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+====== Struct and Typedef (Example 1) ======
+**Concepts:**\\
+Constructs ''struct'' and ''typedef'' (illustrative example of use)
+**Text:**\\
+Implement a C program that:
+  * Defines a new data type with name ''stud_t'' based on a structure useful to store information about a student.
+  * The structure (identified in a C program with the keyword ''struct'') must contain:
+    * a field ''number'' to store the //identification number// of the student
+    * a field ''name'' to store the //name// of the student (the student name has a maximum length of 20 characters)
+    * a field ''average'' to store the average value of the scores of a student
+    * a vector of ''scores'' to store the scores of the exams attended by the student
+  * The program, after declaring a vector (whose elements are of type ''stud_t'') useful to store the data related to ''N_STUD'' students.
+  * It must fill all the fields related to the student with index ''0'' in the vector of type ''stud_t''.
+  * And finally, it must print all the fields related to the student with index ''0'' previously inserted.
+**Solution:**\\
+<file C struct_and_typedef_1.c>
+/*
+  Illustrative example of the constructs struct and typedef.
+  The program must:
+   - Defines a new data type with name ''stud_t'' based on
+     a structure useful to store information about a student.
+   - The structure (identified in a C program with the keyword ''struct'')
+     must contain:
+     - a field ''number'' to store the //identification number// of the student
+     - a field ''name'' to store the //name// of the student
+       (the student name has a maximum length of 20 characters)
+     - a field ''average'' to store the average value of the scores of a student
+     - a vector of ''scores'' to store the scores of the exams attended by the student
+   - The program, after declaring a vector (whose elements are of type ''stud_t'')
+     useful to store the data related to ''N_STUD'' students.
+   - It must fill all the fields related to the student with index ''0''
+     in the vector of type ''stud_t''.
+   - And finally, it must print all the fields related to the student
+     with index ''0'' previously inserted.
+*/
+#include <stdio.h>
+#include <string.h>
+#define DIM_NAME 20
+#define N_SCORES 3
+#define N_STUD 10
+/* Definition of the new type stud_t */
+typedef struct {
+  int number;
+  char name[DIM_NAME+1];
+  float average;
+  int scores[N_SCORES];
+} stud_t;
+int main(){
+  /* Declaration of the vector of stud_t */
+  stud_t student[N_STUD];
+  int i;
+  /* Filling of the fields of the structure referred to the student
+     index with index 0 of the vector */
+  strcpy(student[0].name, "Jules");
+  student[0].number = 13123;
+  student[0].average = 23.0;
+  student[0].scores[0] = 18;
+  student[0].scores[1] = 27;
+  student[0].scores[2] = 24;
+  /* Printing of the values previously written */
+  printf("%d %s %f\n", student[0].number, student[0].name, student[0].average);
+  for(i=0; i<N_SCORES-1; i++)
+    printf("%d ", student[0].scores[i]);
+  printf("%d\n", student[0].scores[N_SCORES-1]);
+  return 0;
+}
+</file>

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