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search.cpp
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search.cpp
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#include<iostream>
#include<stdlib.h>
#include<time.h>
//#include<sys/time.h>
// #include<omp.h>
using namespace std;
int basic=0;
int linearSearch(int linear[],int i,int key)
{
basic++;
// delay(100);
if(i<0)
{
return -1;
}else if(linear[i]==key){
return i;
}else {
i--;
return(linearSearch(linear,i,key));
}
}
int BinarySearch(int binary[],int high,int key,int low)
{
basic++;
int a;
if(high < low)
return -1;
else if(high >low){
a = (high+low)/2;
if(binary[a]>key)
{
return (BinarySearch(binary,a-1,key,low));
}else if(binary[a]<key)
{
return (BinarySearch(binary,high,key,a+1));
}else if(binary[a]==key)
{
return a;
}
}
}
int main()
{
srand(time(NULL));
// clock_t s,e;
int linear[100000],binary[100000],N;
binary[0] = 1;
cout << "Enter the size of the array : " << endl;
cin >> N;
for(int i=1;i<N;i++)
{
binary[i] = binary[i-1] + 1;
linear[i] = rand()%N;
}
int key;
cout<< endl<< "Enter the key you are going to search in linear : ";
cin >> key;
// s= clock();
int f = linearSearch(linear,N-1,key);
// e=clock();
// printf("The delay time is : %f\n",(e-s)/CLK_TCK );
if(f!=-1)
{
cout <<endl << "The key linear key found at " << f << "th position." << endl << endl;
}else {
cout << endl << "**********************The key is not found in linear array***********************" << endl;
}
cout << "The number of Basic operation of linearSearch is : " << basic << endl << endl ;
basic =0;
cout << endl << "Enter the key you are going to search in binary : ";
cin >> key;
f = BinarySearch(binary,N-1,key,0);
if(f!=-1)
{
cout <<endl << "The key found at " << f << "th position." << endl << endl;
}else {
cout << endl << "**********************The key is not found in binary array***********************" << endl;
}
cout << "The number of Basic operation of BinarySearch is : " << basic << endl << endl ;
return 0;
/*
* www.github.com/rakeshsagalagatte/ADALAB.git
*/
}