int search(int A[], int n, int target)
{
int k = _keyIndex(A, n);
// n==0 or n > 0
bool positive = (A[0] <= A[k]);
int u = _binarySearch(A, 0, k, positive, target);
if(-1 == u)
u = _binarySearch(A, k + 1, n - 1, positive, target);
return u;
}
int _binarySearch(int *a, int start, int end, int x){
if(start > end)
return -1;
int mid = (start+end)/2;
if(a[mid] == x){
int ind = _binarySearch(a, start, mid-1, x);
if(ind == -1)
return mid;
}
else if(a[mid] > x)
return _binarySearch(a, start, mid-1, x);
else
return _binarySearch(a, mid+1, end, x);
}
int containsDynArrOrd(DynArr *v, TYPE val, comparator compare){
int idx = _binarySearch(v, val, compare);
// rem: if it's not in there, it'll return size. This could hold a previously added value...so must check the index!
if (EQ(v->data[idx],val) && idx < v->size)
return 1;
else return 0;
}
bool isMajority(int *a, int n, int x){
int ind = _binarySearch(a, 0, n-1, x);
if(ind == -1)
return false;
if(a[ind+n/2] == x)
return true;
return false;
}
void removeDynArrOrd(DynArr *v, TYPE val, comparator compare)
{
int idx = _binarySearch(v, val, compare);
if(EQ(v->data[idx], val))
removeAtDynArr(v, idx);
}
void addDynArrOrd(DynArr *v, TYPE val, comparator compare)
{
int idx = _binarySearch(v, val, compare);
printf("Adding to index = %d\n", idx);
addAtDynArr(v,idx,val);
}