Determine the precise $($i$.$e$.,$ not just the order of magnitude$)$ Big$-$Oh values for the following code sample, based on the number of statement executions, as described in the Module $1$ lecture. Choose the answer that best agrees with the value you have determined. Keep the following considerations in mind:

Remember to consider each statement in compound statements separately.

Pay close attention to the initial and end values of loop variables!

Loops such as "for" and "while" contain an implicit "jump" instruction that causes execution to proceed from the end of the loop back to the beginning of the loop.

Code sample:

for $($int i $=0$; i $<$ n; i$++)$

$\{$

sum $+=$ i;

$\}$

int j $=0$;

while $($j $<$ n$)$

$\{$

sum$--$;

j$++$;

$\}$