Lehmät

// Suorakulmion muotoinen aitaus
// Annetaan kartta
// Kuinka monta alueella

const { createInterface } = require("readline")
const interface = createInterface({
    input: process.stdin,
    terminal: false
})

let dimensions = {}
let data = []

interface.on("line", (line) => {
    if (Object.keys(dimensions).length === 0) {
        const givenDimensions = line.split(" ")
        dimensions.height = givenDimensions[0]
        dimensions.width = givenDimensions[1]
    } else if (data.length !== dimensions.height) data.push(line.split("").map((val) => val === "." ? 0 : val === "*" ? 2 : 1 ))
    if (data.length == dimensions.height) {
        // If the line includes more than 2 *, then we ignore it
        // If the line includes * at some point, we begin the fence
        // If the line includes a second * we end the fence
        // When within lines, calculate amount of true values
        // 2 = fence, 1 = cow, 0 = empty space
        const amountOfCowsWithinBounds = data
            .map((row) =>
                row.filter((val) => val === 2).length !== 2 ? 
                0 :
                row.slice(row.indexOf(2) + 1, row.indexOf(2, row.indexOf(2) + 1))
                    .filter((val) => val === 1)
                    .length
            )
            .flat(1)
            .reduce((a, b) => a + b)
        console.log(amountOfCowsWithinBounds)
        process.exit()
    }
})

Test 1

Group: 1, 2

Verdict: ACCEPTED

Test 2

Group: 1, 2

Verdict: ACCEPTED

Test 3

Group: 1, 2

Verdict: ACCEPTED

Test 4

Group: 1, 2

Verdict: ACCEPTED

Test 5

Group: 1, 2

Verdict: ACCEPTED

Test 6

Group: 2

Verdict: ACCEPTED

Test 7

Group: 2

Verdict: ACCEPTED

Test 8

Group: 2

Verdict: ACCEPTED

Test 9

Group: 2

Verdict: ACCEPTED