COMPUTER SCIENCE AND ENGINEERING
DATA STRUCTURES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Memory is allocated to the data structure as the program executes.
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Memory is allocated to the data structure at compile time.
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The size of the structure is fixed
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The data structure can also double as TNT
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Detailed explanation-1: -Dynamic data structures, on the other hand, have a variable size and are allocated at run-time. This means that their memory size can be changed during program execution. Memory can be dynamically allocated or deallocated during program execution.
Detailed explanation-2: -Dynamic Memory Allocation is a process in which we allocate or deallocate a block of memory during the run-time of a program. There are four functions malloc(), calloc(), realloc() and free() present in <stdlib. h> header file that are used for Dynamic Memory Allocation in our system.
Detailed explanation-3: -Run-time or Dynamic allocation The program then uses this memory for some purpose. Usually the purpose is to add a node to a data structure. In object-oriented languages, dynamic memory allocation is used to get the memory for a new object. The memory comes from above the static part of the data segment.
Detailed explanation-4: -The heap. The remainder of the dynamic storage area is commonly allocated to the heap, from which application programs may dynamically allocate memory, as required. In C, dynamic memory is allocated from the heap using some standard library functions.
Detailed explanation-5: -Dynamic allocation of memory is a very important subject in C. It allows building complex data structures such as linked lists. Allocating memory dynamically helps us to store data without initially knowing the size of the data in the time we wrote the program.