practice_functions.h

#include <vector>
#include <string>
#include <vector>
#include <ostream>
#include <istream>
#include "Sales_data.h"
using std::ostream;
using std::istream;
using std::vector;
using std::string;

extern int shoot(void);
extern int sheet(void);
extern int goodness_sake(void);
extern int sh33t(void);
extern int grade_cluster(void);
extern int array1(void);
extern int c_string_compare(void);
extern int string_compare(void);
extern int string_catz(void);
extern int twodimensional(int i);
extern int conditional_test_exercise(vector<int> v1);
extern int grade_organizer(int grade);
extern int size_of_everything(void);
extern int exercise4_29(void);
extern int how_many_vowelz(void);
extern int how_many_vowelz3(void);
extern int repeat_counter(void);
extern int greatest_amount(vector<int> numbholder);
extern bool prefix_or_not(vector<int> one, vector<int> two);
extern int greater_string();
extern int repetition_tester();
extern int find_uppercase_duplicates();
extern int divide_two_ints();
extern int fact(int i);
extern int fact2(void);
extern int absolute_value(int i);
extern int fibo(void);
extern void switch_ints(int *i, int *j);
extern void switch_ints2(int &i, int &j);
extern bool capital_letters(const string &s);
extern void make_lowercase(string &s);
extern int &get(int *arry, int index);
extern void print_dat_vector(vector<int> v, int x);
extern int greatest_commmon_factor(int, int);

/*extern string (&here_goes(bool nope)) [10];
using your_mother = string (&) [10];
extern your_mother here_goes2(bool yep);
auto here_goes3(bool maeby)->string (&) [10];
string your_father[] = {"nope", "yep", "heck no"};
decltype(your_father) *here_goes4(bool fuck_it);
*/