**Java 1D Array**

### Problem Statement :

An array is a simple data structure used to store a collection of data in a contiguous block of memory. Each element in the collection is accessed using an index, and the elements are easy to find because they're stored sequentially in memory. Because the collection of elements in an array is stored as a big block of data, we typically use arrays when we know exactly how many pieces of data we're going to have. For example, you might use an array to store a list of student ID numbers, or the names of state capitals. To create an array of integers named myArray that can hold four integer values, you would write the following code: int[] myArray = new int[4]; This sets aside a block of memory that's capable of storing 4 integers. Each integer storage cell is assigned a unique index ranging from 0 to one less than the size of the array, and each cell initially contains a 0. In the case of myArray, we can store integers at indices 0, 1, 2, and 3. Let's say we wanted the last cell to store the number 12; to do this, we write: myArray[3] = 12; Similarly, we can print the contents of the last cell with the following code: System.out.println(myArray[3]); The code above prints the value stored at index 3 of myArray, which is 12 (the value we previously stored there). It's important to note that while Java initializes each cell of an array of integers with a 0, not all languages do this. Task The code in your editor does the following: 1.Reads an integer from stdin and saves it to a variable, n, denoting some number of integers. 2.Reads n integers corresponding to a0,a1,....,an-1 from stdin and saves each integer ai to a variable, val. 3.Attempts to print each element of an array of integers named a. Write the following code in the unlocked portion of your editor: 1.Create an array, a, capable of holding n integers. 2.Modify the code in the loop so that it saves each sequential value to its corresponding location in the array. For example, the first value must be stored in a0, the second value must be stored in a1, and so on. Good luck! Input Format The first line contains a single integer, n, denoting the size of the array. Each line i of the n subsequent lines contains a single integer denoting the value of element ai. Output Format You are not responsible for printing any output to stdout. Locked code in the editor loops through array a and prints each sequential element on a new line.

### Solution :

` ````
Solution in C :
int[] a = new int[n];
for(int i = 0 ; i < n; i++){
a[i] = sc.nextInt();
}
```

## View More Similar Problems

## Is This a Binary Search Tree?

For the purposes of this challenge, we define a binary tree to be a binary search tree with the following ordering requirements: The data value of every node in a node's left subtree is less than the data value of that node. The data value of every node in a node's right subtree is greater than the data value of that node. Given the root node of a binary tree, can you determine if it's also a

View Solution →## Square-Ten Tree

The square-ten tree decomposition of an array is defined as follows: The lowest () level of the square-ten tree consists of single array elements in their natural order. The level (starting from ) of the square-ten tree consists of subsequent array subsegments of length in their natural order. Thus, the level contains subsegments of length , the level contains subsegments of length , the

View Solution →## Balanced Forest

Greg has a tree of nodes containing integer data. He wants to insert a node with some non-zero integer value somewhere into the tree. His goal is to be able to cut two edges and have the values of each of the three new trees sum to the same amount. This is called a balanced forest. Being frugal, the data value he inserts should be minimal. Determine the minimal amount that a new node can have to a

View Solution →## Jenny's Subtrees

Jenny loves experimenting with trees. Her favorite tree has n nodes connected by n - 1 edges, and each edge is ` unit in length. She wants to cut a subtree (i.e., a connected part of the original tree) of radius r from this tree by performing the following two steps: 1. Choose a node, x , from the tree. 2. Cut a subtree consisting of all nodes which are not further than r units from node x .

View Solution →## Tree Coordinates

We consider metric space to be a pair, , where is a set and such that the following conditions hold: where is the distance between points and . Let's define the product of two metric spaces, , to be such that: , where , . So, it follows logically that is also a metric space. We then define squared metric space, , to be the product of a metric space multiplied with itself: . For

View Solution →## Array Pairs

Consider an array of n integers, A = [ a1, a2, . . . . an] . Find and print the total number of (i , j) pairs such that ai * aj <= max(ai, ai+1, . . . aj) where i < j. Input Format The first line contains an integer, n , denoting the number of elements in the array. The second line consists of n space-separated integers describing the respective values of a1, a2 , . . . an .

View Solution →