Optical Operators 3 Js Challenge

Question

I need some help with this challenge, I have managed to work out case 1 and case 3 on my editor, but with the Solo Learn editor... The parseInt() radix is returning 11 instead of 1 on case 1.

How do I fix this? Do I need to change the radix?

How do I solve case 3? Which has an input of 36?

Any advice would be greatly appreciated.

Volunteers have been divided into 5 groups with equal number of members. If any group has fewer than 5 people, more volunteers must be recruited to fill the positions.
Write a program that takes the number of volunteers and outputs to the console how many volunteers need to be hired to have 5 equal groups.

Sample Input
24

Sample Output
1

Explanation
The nearest number to 24 that is multiple of 5 is 25, so we need 1 more volunteer (24+1=25) to get 5 equal groups.

Answer 1

rest = numberVolunteers % 5;
if(rest === 0){
console.log(0);
} else {
console.log(5 - rest);
}

Answer 2

You can use the conditional (ternary) Operators to solve this, the way the course material shows you to by using the below code:

function main() {
var numberVolunteers = parseInt(readLine(), 10)
// Your code here

var remainder = numberVolunteers % 5
var pplReq = (remainder===0) ? 0: 5-remainder;
console.log(pplReq)
}

Answer 3

Can we see your code ?, so we may be able to figure out why parseInt is doing that as you say and assist you further

Answer 4

Your welcome Brandon

Answer 5

function main() {
var numberVolunteers = parseInt(readLine(), 10)
// Your code here
var d = numberVolunteers % 5
if (d===0)
{console.log(d)} else { console.log(5-d)}
}
this is my code and worked perfectly by tak8ng as reference the code from JaScript but i will love to hear a good explanation

Answer 6

well you guys use if but there is nowhere in the explenation somthing about if. i get the code it will work. but if is not explaind whit in the javescrip corse.

Answer 7

function main() {
var numberVolunteers = parseInt(readLine(), 10);
// Your code here
var rest = numberVolunteers % 5;
var needed = 5-rest;
var final = (rest==0) ? "0": needed;
console.log(final);
}

Answer 8

function main() {
var numberVolunteers = parseInt(readLine(), 10)
// Your code here
numberVolunteers= numberVolunteers%5
numberVolunteers = 5-numberVolunteers
console.log(numberVolunteers)
}

This is my code, however, it doesnt work when numberVolunteers = 0

Answer 9

Most answers use the 'if else' method but it hasn't been introduced yet before this problem.

Answer 10

Peter this is the modulo operator, that means reminder of a division.

Answer 11

function main() {
var numberVolunteers =
parseInt(readLine(), 10)
// Your code here

var volunteers = 5*5;

var peopleNeeded = (volunteers % numberVolunteers);

console.log(peopleNeeded);
}

Answer 12

JaScript, thank you for the help

Answer 13

Jim did you find a way around it?

Answer 14

Here is my solution.

function main() {
var numberVolunteers = parseInt(readLine(), 10)
// Your code here

var x = (numberVolunteers%5);
var y = (x===0) ?"0": 5-x
console.log(y)
}

Answer 15

var n = prompt ("Enter the number of volunteers");
var r = n%5 ;
var v = (r===0)?0:5-r ;
console.log(v)

Answer 16

My solution, works perfectly

function main() {
var numberVolunteers = parseInt(readLine(), 10)
// Your code here
var ifNeedMore = (numberVolunteers % 5)
if (ifNeedMore>0){
console.log(5-ifNeedMore)
} else {
console.log("0")
}
}

Answer 17

So what does % meaning,did not see it in the course..

Answer 18

function main() {
var numberVolunteers = parseInt(readLine(), 10)
// Your code here (3 ways I am showing to solve this )
var remainder = numberVolunteers%5 ;

/* solution-1 -using If -condition

if(remainder%5==0){
console.log(0)
}
else{ y=5-remainder; console.log(y) } */

//Solution-2 Using Conditinal Ternary
var requiredNumberOfpeople = (remainder===0) ? 0: 5-remainder;
console.log(requiredNumberOfpeople);

// solution-3 Solution in Bengali Style :P
console.log(4*numberVolunteers%5)
}

Answer 19

The solutions you give doesn’t work when the numberVolunteers is a number ending with 5, for example 25 or 35.

25%5 => rest = 0=> 5-0=5 which means the code tells us that there need to be 5 additional volunteers which is wrong.

Answer 20

This works:

function main() {
var numberVolunteers = parseInt(readLine(), 10)
// Your code here
var groups = 5;
var rest = numberVolunteers%5;
var additionalNeeded = 5-rest;
additionalNeeded = (additionalNeeded == 0 || rest == 0) ? 0: additionalNeeded;
console.log(additionalNeeded);
}