Can you tell me my mistake?

hello @vageesha
Print all output in single line

But in output, it is given that we have to print each vertical level in a new line

in output file all elements are in single line

4
2
1 5 6
3 8
7
9
Sir, this is the required output

i am talking about output file , not the sample output

Sir, I did not understand what u said

…

in the hidden cases , all elements are in single line so domt print endl

Sir, but in the question it was given that print all the elements of same level in a single line. How did you come to know that al the elements are to be printed in a single line?

…

i have access to those files

Sir, it is still showing compilation error

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