Predefined function reverse() in C++ is available under which header file?
A. math
B. stdio
C. stdlib
D. algorithm
Answer: Option D
A. math
B. stdio
C. stdlib
D. algorithm
Answer: Option D
What is the time complexity of accessing an element in an array by index?
A. O(n)
B. O(1)
C. O(log n)
D. O(n log n)
Which of the following is the correct way to declare an array in C?
A. int array[];
B. array{int};
C. int array[10];
D. int array();
How do you find the length of an array in Java?
A. array.size();
B. array.length;
C. array.length();
D. array.size;
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