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Quantum Computing – The Next Tech Revolution

Quantum Computing – The Next Tech Revolution Technology has evolved rapidly over the last few decades—from bulky mainframe computers to powerful smartphones in our pockets. Yet, despite these advances, traditional computers are approaching their physical limits. This is where quantum computing enters the scene, promising to revolutionize the way we process information and solve complex problems. What Is Quantum Computing? Quantum computing is a new paradigm of computing that uses the principles of quantum mechanics, a branch of physics that explains how matter and energy behave at the smallest scales. Unlike classical computers, which use bits that represent either 0 or 1, quantum computers use qubits. Qubits can exist in multiple states simultaneously, thanks to a property called superposition. Additionally, qubits can be interconnected through entanglement, allowing them to share information instantaneously. These unique properties give quantum computers immense computational power....

Declaration of Arrays

DECLARATION OF ARRAYS
We have already seen that every variable must be declared before it is used. The same concept holds true for array variables. An array must be declared before being used. Declaring an array 
means specifying the following:
* Data type—the kind of values it can store, for example, int, char, float, double.
* Name—to identify the array.
* Size—the maximum number of values that the array can hold.
Arrays are declared using the following syntax:
type name[size];
The type can be either int, float, double, char, or any other valid data type. The number within brackets indicates the size of the array, i.e., the maximum number of elements that can be stored in the array. For example, if we write,
int marks[10];
then the statement declares marks to be an array containing 10 elements. In C, the array index starts from zero. The first element will be stored in marks[0], second element in marks[1], and so on. Therefore, the last element, that is the 10th element, will be stored in marks[9]. Note that 
0, 1, 2, 3 written within square brackets are the subscripts. In the memory, the array will be stored as shown in Fig
Fig : Memory representation of an array of 10 elements
 Figure: Declaring arrays of different data types and sizes
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