Value of Count pointer is not changing - c

Question

I am passing the pointer of count in all function but its value does not change and remain 0
int binarysearch(int a[],int l,int r,int k,int *count)
{
int m = (r+l)/2;
if (r > l)
{
if (a[m] > k){
*count++;
return binarysearch(a,l,m-1,k,count);
}
if (a[m] < k)
{
*count++;
return binarysearch(a,m+1,r,k,count);
}
if (a[m] == k)
{
*count++;
return m;
}
}
if (r <= l)
{
*count++;
if (k>a[l]) return l+1;
else return l;
}
}
void insertati (int a[],int i,int *count)
{
int t = binarysearch(a,0,i-1,a[i],count);
int y = a[i],j = i-1;
while (j >= t)
{
a[j+1] = a[j];
j--;
}
a[j+1] = y;
}
void insetionsort(int a[],int n,int *count)
{
for (int i = 1; i < n; ++i)
{
insertati(a,i,count);
}
}
int main()
{
int n,count =0;
scanf("%d",&n);
int arr[n];
for (int i = 0; i <n; ++i)
{
scanf("%d",&arr[i]);
}
insetionsort(arr,n,&count);
printf("%d\n",count);
for (int i = 0; i <n; ++i)
{
printf("%d ",arr[i]);
}
return 0;
}

Answer 1

Surround dereferencing with parentheses:
int binarysearch(int a[],int l,int r,int k,int *count) {
int m = (r+l)/2;
if (r > l)
{
if (a[m] > k){
(*count)++;
return binarysearch(a,l,m-1,k,count);
}
if (a[m] < k)
{
(*count)++;
return binarysearch(a,m+1,r,k,count);
}
if (a[m] == k)
{
(*count)++;
return m;
}
}
if (r <= l)
{
(*count)++;
if (k>a[l]) return l+1;
else return l;
}
}