there is a declaration syntax error in the code i couldn't locate it plz help me find

[reetika]

#include<stdio.h>
#include<conio.h>
#include<malloc.h>
struct node
{
int info;
struct node*left_child;
struct node*right_child;
};
struct node*create_tree(int,struct node*);
void output(struct node*,int);
struct node*create_tree(int info,struct node *node)
{
if(node==NULL)
{
node=(struct node*)malloc(sizeof(struct node));
node->info=info;
node->left_child=NULL;
node->right_child=NULL;
return(node);
}
if(node->info>=info)
{
node->left_child=create_tree(info,node->left_child);
return(node);
}
else
{
node->right_child=create_tree(info,node->right_child);
return(node);
}
}
void output(struct node*t,int level)
{
int i;
if(t)
{
output(t->right_child,level+1);
printf("\n");
for(i=0;i<level;i++)
{
printf(" ");
printf("%d",t->info);
printf("\n");
output(t->left_child,level+1);
}
}
void main()
{
int info;
char choice;
struct node*t=(struct node*)malloc(sizeof(struct node*));
t=NULL;
printf("\n input choice'b' to break:");
choice=getchar();
while(choice!='b')
{
printf("\n input information of the node:");
scanf("%d",&info);
t=create_tree (info,t);
printf("\n tree is");
output(t,1);
printf("\n input choice 'b' to break:");
choice=getchar();
}
}

[johny10151981]

look at output function
combination of curly bracket is not correct. there might be more, but i did't read all