01_10_1.3

/*
 * File:   main.c
 * Author: Gerardo Cicalese
 *
 * Created on 16 settembre 2019, 15.48
 */

#include <stdio.h>
#include <stdlib.h>

#define TRUE 1
#define FALSE 0

int search_vex(int * vex, int n, int a){
    if(n<2)
        if( *vex == a && n == 1 )
            return TRUE;
        else
            return FALSE;
    else
        if( (*vex) == a )
            return TRUE;
        else
            return  search_vex(vex+1, n-1, a);
}

int main(void){
    int elem, vex[]={63, 15, 42, 63, 92, 34, 77, 23, 78, 37, 26, 7, 79, 85, 82, 19, 89, 10, 64};
    size_t len=sizeof(vex)/sizeof(vex[0]);
    scanf("%d", &elem);
    printf("%d is %s\n", elem, (TRUE==search_vex(vex, len, elem))?("found"):("not found") );
    return 0;
}