Suppose that a program asks a user to enter multiple integers, either positive or negative, to do some calculation. The data entry will stop when the user entersa certain value to indicate the end of the data. What value should the code use as the sentinel? a. An alphabetic character O b. 0 O c. -1 O d. 999

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Concept of memory addresses in pointers

The concept of pointers in high-level languages was introduced in C programming. Pointers are simply the variables that are used to store memory addresses of another variable. These special variables are generally used in the languages such as C Programming and C++ Programming, where it allows the programmer to work more deeply with memory and its addresses.