What is wrong with my code?

#1

#include
using namespace std;
class node{
public:
int data;
node* lt;
node* rt;
node(int d){
data=d;
lt=NULL;
rt=NULL;
}
};
node* buildbt(int pr[],int in[],int s,int e){
static int i =0;
if(s>e){
return NULL;
}
int m=-1;
for(int j=s;j<=e;j++){
if(in[j]==pr[i]){
m=j;
break;
}
}
node* rot=new node(pr[i]);
i++;
rot->lt=buildbt(pr,in,s,m-1);
rot->rt=buildbt(pr,in,m+1,e);
return rot;
}
void prntlevk(node* rot,int k){
if(rot==NULL){
return;
}
if(k==0){
cout<data<<" “;
return;
}
prntlevk(rot->lt,k-1);
prntlevk(rot->rt,k-1);
return;
}
int allnodatk(node* rot,int tg,int k){
if(rot==NULL){
return -1;
}
if(rot->data==tg){
prntlevk(rot,k);
return 0;
}
int dl=allnodatk(rot->lt,tg,k);
if(dl!=-1){
if(dl+1==k){
cout<data<<” “;
}
else{
prntlevk(rot->rt,k-2-dl);
}
return dl+1;
}
int dr=allnodatk(rot->rt,tg,k);
if(dr!=-1){
if(dr+1==k){
cout<data<<” ";
}
else{
prntlevk(rot->lt,k-2-dr);
}
return dr+1;
}
return -1;
}
int main(){
int np,ni;
cin>>np;
int pr[np];
for(int i=0;i<np;i++){
cin>>pr[i];
}
int in[np];
for(int i=0;i<np;i++){
cin>>in[i];
}
int s=0;
int e=np-1;
node* bt=buildbt(pr,in,s,e);
int t;
cin>>t;
while(t–){
int tg,k;
cin>>tg>>k;
int g = allnodatk(bt,tg,k);
if(g==-1){
cout<<0<<endl;}
else{
cout<<endl;
}
}
return 0;
}

#2

hi @dsinght4
try this -->

#3

its working fine but i want to know what is wrong with my code where i’m messing up

#4

Save ur code on Coding Blocks ide and send link.

#5

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