8. Determine the time complexity of following code pieces (Figure 1), using big-O notation (every single statement has (1) time complexity). Sequence of statements If-Then-Else statement 1; statement 2; if (cond) then block 1 (sequence of statements) else block 2 (sequence of statements) end if; statement k; Loops Nested loops for I in 1 .. N loop sequence of statements end loop; for I in 1 .. N loop for J in 1 .. M loop sequence of statements end loop; end loop: Figure 1