CAN YOU FIND THE ERRORS IN THIS PROGRAM??

Question

#include<stdio.h>
#include<stdlib.h>
struct tree
{
int data;
struct tree*leftchild;
struct tree*rightchild;
}*root=NULL;
void insert(int data)
{
struct tree*tempnode=(struct tree*)malloc(sizeof(struct tree));
struct tree*current;
struct tree*parent;
tempnode->data=data;
tempnode->leftchild=NULL;
tempnode->rightchild=NULL;
if(root=NULL)
{
root=tempnode;
}
else
{
current=root;
parent=NULL;
while(1)
{
parent=current;
if(data<parent->data)
{
current=current->leftchild;
if(current=NULL)
{
parent->leftchild=tempnode;
return;
}
}
else
{
current=current->rightchild;
if(current=NULL)
{
parent->rightchild=tempnode;
return;
}
}
}
}
}
int main()
{
int i;
int arr[8]={22,33,12,42,23,43,25,35};
for(i=0;i<8;i++)
{
insert(arr[i]);
printf("success");
}
return 0;
}

Answer 1

Line 18: `if ( root = NULL )` should be `if ( root == NULL )`
Line 32 and 41: `if ( current = NULL )` should be `if ( current == NULL )`

Answer 2

Tq so much bro