Sum All Numbers in a Range
const sumAll = arr => { let maxNumber = Math.max(...arr) let minNumber = Math.min(...arr) let numbersArray = [] for(let i = minNumber; i <= maxNumber; i++){ numbersArray.push(i) } return numbersArray.reduce((acc, cur) => acc + cur, 0) } sumAll([1, 4]);
sum in range
//Java program to print the sum of numbers in a given rangeimport java.util.Scanner;public class sum_of_numbers_in_range{ public static void main(String[] args) { //scanner class declaration Scanner sc = new Scanner(System.in); //input from user System.out.print("Enter starting number : "); int start = sc.nextInt(); System.out.print("Enter ending number : "); int end = sc.nextInt(); //declare a variable to store sum int sum = 0; //loop to add n natural numbers for(int i = start ; i <= end ; i++) sum=sum+i; //display the sum System.out.print("Sum of numbers in the range from "+start+" to "+end+" is "+sum); //closing scanner class(not compulsory, but good practice) sc.close(); }}
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