# Data Structures operations using STL(Standard Template Library)

Discussion in 'C++' started by seeguna, Jul 27, 2007.

1. ### seegunaNew Member

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Data Structures operations using STL(Standard Template Library)
Code:
```#include<iostream>
#include<vector>
#include<algorithm>// Included for Algorithmic  functions such as sort,max_element,binary_search  etc
#include<stdlib.h>
using namespace std;

void main()
{
int i,number,array[20],choice,srch;
cout<<"\n Enter a number of elements:";
cin>>number;
cout<<"Enter the number one by one\n";
for(i=0;i<number;i++){
cin>>array[i];
}
vector <int>::iterator loop_iterate;//loop iterator
vector <int>::iterator max_iterate;// To store maximum element
vector <int>::iterator min_iterate;// To store minimum element
vector <int> vec_first(array,array+number);//vector created for our array
while(1)
{

cout<<"\n1.Sorting\n2.Searching\n3.Max/Min Element\n4.Exit\n";
cout<<"Enter ur choice:\n";
cin>>choice;
switch(choice)
{
case 1:

sort(vec_first.begin(),vec_first.end());
cout<<"\nAfter Sorting\n";
for(loop_iterate=vec_first.begin();loop_iterate<vec_first.end();loop_iterate++){
cout<<*loop_iterate<<endl;
}
break;

case 2:
cout<<"Enter the element to be searched:\n";
cin>>srch;

//Binary search works well for sorted array
//so u have to sort the array first and then apply binary search algorithm
sort(vec_first.begin(),vec_first.end());
if(binary_search(vec_first.begin(),vec_first.end(),srch))

cout<<"Element found";

else
break;

case 3:

max_iterate=max_element(vec_first.begin(),vec_first.end());
cout <<"\n Maximum element present in the array is :"<<*max_iterate<<endl;

min_iterate=min_element(vec_first.begin(),vec_first.end());
cout <<"\n Minimum element present in the array is :"<<*min_iterate<<endl;

break;
case 4:
exit(0);

}
}  //end of while loop

}```

2. ### Shishir191New Member

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Hi,
Your topic is good. But i think presentation is not looking good to me. Its not easy to understand the code because you have written everthing in the main and its very difficult to read. Its my assumption.

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You had the same Article more than once. I deleted the other one.

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