ช่วยทีนะคะ..เรื่อง sequentialSearch กับ binary search

คือ ตอนนี้เขียนโปรแกรม sort แล้วอ่ะค่ะ แต่ต้องการให้มันค้นหาข้อมูลด้วย sequentialSearch กับ binary search โดยแบ่งเป็นเรื่องละฟังก์ชั่น ช่วยดูให้ทีนะคะ

#include<iostream>
#include<math.h>
#define max 20
using namespace std;
class Sortdata{
private:
int dataA[max];
int dataB[max];
int n;
public:
Sortdata(){
n=0;
}

void inputdata(){
cout<<"Input NUM of array : ";
cin>>n;
for(int i=1;i<=n;i++){
cout<<"dataA["<<i<<"] = ";
cin>>dataA[i];
}
}

void Copy_to_B(){
for(int i=1;i<=n;i++)
dataB[i] = dataA[i];
}

void disPlay(){
cout<<" :::::output:::: "<<endl;
for(int i=1;i<=n;i++)
cout<<"data["<<i<<"] = "<<dataB[i]<<endl;
}

void swape(int x,int y){
int temp;
temp=dataB[y];
dataB[y]=dataB[x];
dataB[x]=temp;
}

void insertionSort(){
for(int i=2,j=0;i<=n;i++){
j=i;
int sort=1;
while(j>1 && sort){
if(dataB[j-1] > dataB[j])
swape(j,j-1);
else
sort=0;
j=j-1;
}
}
}

void bubbleSort(){
int sort=1;
int e=n;
while(e>=1 && sort){
sort=0;
for(int j=1;j<=e;j++){
if(dataB[j]>dataB[j+1]){
swape(j,j+1);
sort=1;
}
}
e--;
}
}

void sequentialSearch(){
//
}
void binary Search(){
//
}

};

int menu(){
int choice=0;
system("clear");
printf("\n\n\n\n\n\n\n\n");
printf(" * A R R A Y *\n");
printf(" ==============\n");
printf(" 1) Input data\n");
printf(" 2) Copy to B\n");
printf(" 3) insertion Sort \n");
printf(" 4) Bubble Sort \n");
printf(" 5) Sequential Search \n");
printf(" 6) binary Search \n");
printf(" 7) Display data\n");
printf(" 8) Exit\n");
printf(" ==============\n");
while(choice < 8 || choice >1) {
cout<<"\n Please select 1...7 or 8 (Exit) : ";
cin>>choice;
}
return choice;
}

int main(){
int choice;
Sortdata arr;
do{
choice = menu();
switch(choice){
case 1: cout<<"\n*** Insert dataA \n";
arr.inputdata();
break;
case 2: cout<<"\n*** Copy to B \n";
arr.Copy_to_B();
break;
case 3: cout<<"\n*** InsertionSort\n";
arr.insertionSort();
break;
case 4: cout<<"\n*** Bubble Sort\n";
arr.bubbleSort();
break;
case 5: cout<<"\n*** Sequential Search\n";
arr.sequentialSearch();
break;
case 6: cout<<"\n*** binary Search\n";
arr.binarySearch();
break;
case 7: cout<<"\n*** Display \n";
arr.disPlay();
break;
default : cout<<"\n Bye!!!!!.... \n";
exit(1);
}
getchar(); getchar();
}
while(1);
return 0;
}