Hi ! can someone from you explain what's wrong here 😊 ?!

Question

this code should be used to verify a palindrome number
----
#include <stdio.h>
int nb ;
int extrait(int nb);
int est_palindrome (int nb );
int main(){
scanf("%d \n", &nb);
printf("la valeur que tu as donne est : %d \n",nb);
if (est_palindrome(nb)== 1){
printf("le nombre est palindrome ");
}
else
printf("le nombre n'est pas palindrome ");
}
int extrait (int nb){
int static *p;
p=&nb ;
int cpt , m , i ;
m= nb ;
do {
cpt = cpt + 1 ;
nb = nb / 10 ;
}while (nb >=9 );
return(nb);
for (i=1;i<cpt ;i++){
nb = nb * 10 ;
}
*p = (m - nb) ;
}
int est_palindrome (int nb){
while (nb >= 9 ){
if (extrait(nb)!=(nb % 10) ){
return (0);
break ;
}
}
if (est_palindrome(nb)!= 0 ){
return(1) ;
}
}

Answer 1

Both of your functions
int extrait(int nb)
int est_palindrome(int nb )
Don't have return statements at the end of them.
int extrait(int nb) {
....
.....
do {
....
} while ();
return nb;
for() {
....
}
....
// need return statement here
}