What is the advantage of UNION over STRUCTURE in C? What is the maximum number of elements in the array declaration 'int arr[5][8];'? Where do array subscripts in C always start? W... What is the advantage of UNION over STRUCTURE in C? What is the maximum number of elements in the array declaration 'int arr[5][8];'? Where do array subscripts in C always start? Which is the correct way to declare a pointer? What will be the output of the printf statement? What will be the value of X after certain statements? What will be the output of a specific program? Study another program and state its output.
Understand the Problem
The question is related to multiple choice questions on programming concepts, specifically concerning C language. It covers topics such as memory structures, arrays, pointers, and output from code snippets.
Answer
UNION advantage: memory location. Array elements: 40. Subscripts start at 0. Pointer: int *ptr;. Printf: 17.235. Floor: 5, -6. X=107. Program: 91.
["Advantage of UNION over STRUCTURE: Memory location.","Maximum number of elements: 40.","Array subscripts start at: 0.","Correct way to declare a pointer: int *ptr;.","Output of printf("2.3f\n",17.23478): 17.235.","floor(5.8): 5 and floor(-5.8): -6.","Value of X: 107.","Program output: 91."]
Answer for screen readers
["Advantage of UNION over STRUCTURE: Memory location.","Maximum number of elements: 40.","Array subscripts start at: 0.","Correct way to declare a pointer: int *ptr;.","Output of printf("2.3f\n",17.23478): 17.235.","floor(5.8): 5 and floor(-5.8): -6.","Value of X: 107.","Program output: 91."]
More Information
A union saves memory by sharing space for different members, but only one is accessible at a time. Array indices in C start at 0. Pointer declaration style is crucial for correct reference and dereferencing.
Tips
Ensure correct understanding of memory layout. Format specifier in printf modifies the output precision. Check precedence when calculating expressions.
Sources
- C Unions - GeeksforGeeks - geeksforgeeks.org
- What will be maximum subscript of array having size? - Quora - quora.com
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