updated 17EGICS068 hash maps 2

[murtazattari]

#include
#include
#include
#include<bits/stdc++.h>
using namespace std;

int main()
{
int tar,i,j,key,c=0; //used int variables
cout<<"enter size of the array required ";
cin>>i; //taking size of the array
int *p = new int[i]; //dynamically allocating the array
cout<<"enter the array \n";
for(j=0;j<i;j++) //inputing the array
{
cout<<"enter the "<<j+1<<"th element ";
cin>>p[j];
}
cout<<"enter the targate value ";
cin>>tar;
set set1; //transferring the array to a set for unique elements
set:: iterator itr; //iterator for keeping track of the set1 used
for(j=0;j<i;j++) //transferring the array elements to set1
{
set1.insert(p[j]);
}
for(j=0;j<i;j++) //checking if the element+1 in array is present in the set1
{
key = tar-p[j];
if(set1.count(key)) //if found the element in set increasing the counter.
{
c++;
}
}

cout<<"\n elements found are   ";
cout<<c/2; //printing the counter / output the value is divide by since it counts both ways .
cout<<"\nThe set1 is ";
for(itr = set1.begin();itr != set1.end();++itr)
{
	cout<<"\t" <<*itr; //printing the set1 formed.
}	

}
#include
#include
#include
#include<bits/stdc++.h>
using namespace std;

int main()
{
int i,j,key,c=0; //used int variables
cout<<"enter size of the array required ";
cin>>i; //taking size of the array
int *p = new int[i]; //dynamically allocating the array
cout<<"enter the array \n";
for(j=0;j<i;j++) //inputing the array
{
cout<<"enter the "<<j+1<<"th element ";
cin>>p[j];
}
set set1; //transferring the array to a set for unique elements
set:: iterator itr; //iterator for keeping track of the set1 used
for(j=0;j<i;j++) //transferring the array elements to set1
{
set1.insert(p[j]);
}
for(j=0;j<i;j++) //checking if the element+1 in array is present in the set1
{
key = p[j]+1;
if(set1.count(key)) //if found the element in set increasing the counter.
{
c++;
}
}
cout<<"\n elements found are ";
cout<<c; //printing the counter / output the value is divide by since it counts both ways .
}

[rhythmbhiwani]

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