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Number of elements in an array between upper and lower bounds off campus coding question solved with step by step solution in java.

Question:

You are given two integers,num1 and num2. you are also given an array of integers arr of length array_lengt.

How many elements are there in arr such that num1<=arr[i]<=num2 ?

Notes:

It is given that num2>=num1

Function Description:

Complete the numElementsInBetweenInclusive function in the editor below. It has the following parameters

num1: Integer type , the first number you are given.

num2: integer type, the second number you are given.

arr: integer array, the given array

Return: The function must return an INTEGER denoting the number of elements such that num1<=arr[i]<=num2 as specified in the problem statement.

constraints:

• -10^5<=num1<=10^5
• -10^5<=num2<=10^5
• 3<=array_length<=10^5
• -10^5<=arra[i]<=10^5

Input format for debugging

• The first line contains an integer, num1, denoting the first number you are given.
• The second line contains an integer, num2, denoting the second number you are given.
• The next line contains an integer, array_length, denoting the number of elements in an array.
• Each line i of array_length subsequent lines (where 0<=i<array_length) contains an integer describing arr[i].

Sample Test Cases

Example1:

input:

num1=-3

num2=-1

arr={1,2,3}

Output:

0

Explanation:

There are no numbers in arr such that num1<=arr[i]<=num2. Hence the output is 0.

Example2:

input:

num1=5

num2=10

arr={1,2,3,4,5}

output:

There is 1 number in arr such that num1<=arr[i]<=num2. hence the output is 1.

Algorithm to solve

• Take in the input from user that is num1, num2, arr
• Implement the condition num1<=arr[i]<num2 using while loop and if conditions
• keep a counter to find how many array elements satisfy the given condition
• at the end just print the counter value which will give the required answer.

JAVA CODE

package arrayPrograms;
import java.util.*;
class Problem11 {
	public static void main(String[] args) {
		
		// coded by VRASHIKESH PATIL 
		
		int num1=2;
		int num2=3;
		int[] array1= {0,1,2,3,4,5};
		int count=0;
		for(int i=0;i<array1.length;i++) {
			if(array1[i]>num1 || array1[i]==num1) {
				if(array1[i]<num2 || num2==array1[i]) {		
					count++;	
				}
			}
		}
		System.out.println(count);
	}
}

Watch Complete Explanation for Above Code Below

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