#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
void tri(char *tab[], int n)
{
char *temp;
int i, j;
for (i = 0; i < n; i++)
for (j = 0; j < n; j++)
if (strcmp(tab[i], tab[j]) < 0)
{
temp = tab[i];
tab[i] = tab[j];
tab[j] = temp;
}
}
char *up(char *ct)
{
char *s = NULL;
if (ct != NULL)
{
int i;
s = malloc (sizeof (*s) * (strlen (ct) + 1));
if (s != NULL)
for (i = 0; ct[i]; i++)
{
s[i] = toupper (ct[i]);
}
s[i] = '\0';
}
return s;

}
int main()
{
char *uped;
char prenom[25];
char *t[5];
int i;
for(i=0;i<5;i++)
{
t[i]=(char *)malloc(5);
printf("donner un prenom:");
gets(prenom);
uped=up(prenom);
t[i]=uped;
}
tri(t,5);
for (i = 0; i < 5; i++)
{
printf("le %d prenom est %s\n",i, t[i]);
}
}