for every test case it is of O(n)
still it is giving TLE…
Why it is giving tle?
hello @we_kaash
u should read next element only if a is non zero.
otherwise ur program will keep waiting for input and it will result in tle.
check this for clarity->
sir why you,ve used cout<<"\n"; there in 61th line?
and a seperate question
if you have to go to next line then why didnt you used cout<<endl; ?
to print output of each test case in seprate line
you can use that as well both will bring u to next line.
\n is preffered over endl becuase endl flushes the buffer because of which it makes ur program little bit slow
but sir as in the sample output there is no demand to print the output in nextline but still your code got submitted 
and
sorry sir, i dont get what actually flushes a buffer means??
i googled it before and same statement was given so i asked here
…
in sample output there is only single test case so obviously it will not matter (for this case only ) whether u print \n or not.
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