//closest to zero sum
void minAbsSumPair(int A[], int n)
{
/* Array should have at least two elements*/
if(n < 2)
{
cout<<"Invalid Input";
return;
}
Sorting *obj = &Sorting();
obj->SetArray(A, n);
obj->InsertionSort();
// left and right index variables
int l = 0, r = n-1;
int sum,minsum=A[r];
int min_l,min_r;
while(l<r)
{
sum=A[l]+A[r];
if(abs (minsum) > abs(sum))
{ minsum=sum;
min_l = l;
min_r = r;
}
if(sum >= 0)
r--;
else
l++;
}
cout<<"min sum is "<<A[min_l]<< " + " <<A[min_r]<<" = "<< minsum;
}
bool CheckDuplicacy(int *Arr,int len)
{
Sorting *obj = &Sorting();
obj->SetArray(Arr, len);
obj->InsertionSort();
for (int i=0;i<len;i++)
{ if (Arr[i]=Arr[i+1])
return true;
}
return false;
}
int hasArrayTwoCandidates(int A[], int size, int k)
{
Sorting *obj = &Sorting();
obj->SetArray(A, size);
obj->InsertionSort();
int left=0;
int right=size-1;
while(left<right)
{
if (A[left]+A[right] == k )
{ cout<<"number are "<<A[left] <<" ,"<<A[right]<<endl;
return 1;
}
if ( A[left]+A[right] < k)
left++;
else
right-- ;
}
return 0;
}
int MaxOccurance(int *Arr,int len)
{
int currentcount=0,maxc=0;
Sorting *obj = &Sorting();
obj->SetArray(Arr, len);
obj->InsertionSort();
int currentcandidate=Arr[0],maxcandidate = Arr[0];
for(int i=0;i<len;i++)
{ if(Arr[i]==currentcandidate)
currentcount++;
else
{
currentcandidate=Arr[i];
currentcount=1;
}
if(currentcount>maxc)
{
maxc=currentcount;
maxcandidate=currentcandidate;
}
}
return maxcandidate;
}