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Hacker Rank - Price Check in Javascript
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MukeshChouhan
function checkPrice(products, productsPrices, productsSold, soldPrice){ let hash = {}; let count = 0; // iterate over products and map price // {"eggs":2.89, "milk": 2.29, "cheese": 5.79} for(let i=0; i < products.length; i++){ // check if hash object has already product key available // if it is not present // assign a key and it's value from productsPrices if(!hash[products[i]]){ hash[products[i]] = productsPrices[i] } } // iterate over products/productsSold // check for alreday stored price in hash // if it is mismatching // increase the count to show errors count for(let j=0; j < productsSold.length; j++){ if(hash[productsSold[j]] !== soldPrice[j]){ count++; } } return count; } let products = ["eggs", "milk", "cheese"]; let productsPrices = [2.89, 3.29, 5.79]; let productsSold = ["eggs", "eggs", "cheese", "milk"]; let soldPrice = [2.89, 2.99, 5.97, 2.39]; checkPrice(products, productsPrices, productsSold, soldPrice);
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danieloluwadare
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MukeshChouhan