Help with logic

#1

problem: https://hack.codingblocks.com/app/contests/2022/925/problem

in this question I’m not able to understand how I will take the input, the way sir has taught doesn’t seem to work on this input

#2

void PrintLevel(node* root){
queue<node*> q;

q.push(root);
q.push(NULL);


while(!q.empty()){
	node* x = q.front();
	q.pop();
	if(x == NULL){
		cout<<endl;
		if(!q.empty()){
			q.push(NULL);
		}
	}
	else{
		cout<<x->data;
		if(x->left != NULL){
			q.push(x->left);
		}
		if(x->right != NULL){
			q.push(x->right);
		}
	}

}

}
this way?

#3

hello @raghav007

yeah some what similar to this.

image
image540×542 6.12 KB

#4

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