Challenge: Ibourk-EL submission

output.txt

@@ -1,6 +1,6 @@
-Sidi_Slimane 487539,37
-Onion 1,01
-Turnip 1,01
-Salsify 1,04
-Butternut_Squash 1,06
-Clementine 1,06
+Tetouan 48.50 
+gaz 1.30
+potato 3.50
+tomato 3.50
+sugar 4.50
+flour 5.20

submissions/Ibourk-El/index.js

@@ -0,0 +1,79 @@
+const fs = require("fs");
+const readline = require("readline");
+
+const inputFile = fs.createReadStream("input.txt");
+const outputFile = fs.createWriteStream("output.txt");
+
+const bestCity = async () => {
+  try {
+    const rl = readline.createInterface({
+      input: inputFile,
+      crlfDelay: Infinity,
+    });
+    let cityData = {};
+    for await (const line of rl) {
+      if (line !== "") {
+        const [city, product, priceStr] = line.split(",");
+        const price = parseFloat(priceStr);
+        if (city in cityData) {
+          // check if the product is in list
+          if (product in cityData[city].product) {
+            let ind = cityData[city].product[product];
+            // change the value of the product to cheapes one
+            if (cityData[city].price[ind].price > price) {
+              cityData[city].price[ind].price = price;
+            }
+          } else {
+            // add new product
+            cityData[city].product[product] = cityData[city].index;
+            cityData[city].price.push({ name: product, price: price });
+            cityData[city].index += 1;
+          }
+          cityData[city].sum += price;
+        } else {
+          // add new city
+          cityData[city] = {
+            product: {},
+            price: [{ name: product, price: price }],
+            sum: price,
+            index: 1,
+          };
+          cityData[city].product[product] = 0;
+        }
+      }
+    }
+
+    let smallestSum = Infinity;
+    let bestCity = "";
+    for (let city in cityData) {
+      if (cityData[city].sum < smallestSum) {
+        smallestSum = cityData[city].sum;
+        bestCity = city;
+      }
+    }
+
+    cityData[bestCity].price.sort((a, b) => {
+      if (a.price === b.price) {
+        if (a.name > b.name) return 1;
+        else if (a.name < b.name) return -1;
+        else return 0;
+      }
+      return a.price - b.price;
+    });
+
+    let result = `${bestCity} ${smallestSum.toFixed(2)} \n`;
+    let i = 0;
+    while (i < 5) {
+      let t = cityData[bestCity].price[i].name;
+      result += t + " " + cityData[bestCity].price[i].price.toFixed(2) + "\n";
+      i++;
+    }
+
+    outputFile.write(result);
+    outputFile.end();
+  } catch (e) {
+    console.log(e);
+  }
+};
+
+bestCity();