Memory Active ------------------------- ------- Address Contents Pointer 0 134431 X----------> 0 1 938434 --------> 4 2 432754 | -----> 6 3 292343 | | 4 874944 X--- | 5 002345 | 6 654243 X------ 7 112903
Figure 4: How to avoid initializing memory using double bookkeeping.