24) HackerRank - Plus Minus

Time to completion: ~12m Submitted code:

 
function plusMinus(arr: number[]): void {
    // Write your code here
    const arraySize = parseInt(inputLines[0])
    const elementString = inputLines[1]
    const elements = elementString.split(" ")
    let neg = 0
    let pos = 0
    let zer = 0
    for (const e of elements){
        let n = parseInt(e)
        if (n>0) pos++
        if (n<0) neg++
        if (n===0) zer++
    }
    console.log((pos/arraySize).toFixed(6))
    console.log((neg/arraySize).toFixed(6))
    console.log((zer/arraySize).toFixed(6))
}
 

Stuff I had to look up:

toFixed() switch statements, but ended up not using them.

Takeaways I should probably work a bit faster and more pragmatically. It’s hard to totally sum this up - it’s really just efficiency and risk management, and avoiding indulgences, like trying to use the switch statement, or getting sidetracked. Poverty mindset…?