PROBLEM 92
Hard

First and Last Digit

Programming Basics · JavaScript

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STATUS Not solved

TASK

Problem

#92

Given positive integer 1..999999, print its first and last digits separated by space.

EXAMPLE

Example

Input
40782
Output
4 2

LIMITS

Constraints

`n` is a positive integer from `1` to `999999`, so it always has a well-defined first and last decimal digit.
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LEARN Theory for this problem
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### First and Last Digit

Integer division separates higher decimal/time units, while `%` returns the remainder. These two operations let a program isolate digits or split a total number of seconds/minutes into components.

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NEED HELP? Hints
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['Decide which part comes from division and which part comes from the remainder.', 'Do not mix the loop counter with the accumulated answer; those variables serve different roles.']

ANSWER Solution
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const fs = require('fs');

const n = Number(fs.readFileSync(0, 'utf8').trim());
const text = String(Math.abs(n));

console.log(Number(text[0]), Number(text.at(-1)));