Merge pull request #524 from egg-silver/main

[이지은] 64차 라이브코테 제출

Author: eric-hjh

live6/test64/문제3/이지은.js

@@ -0,0 +1,44 @@
+function solution(cacheSize, cities) {
+  var answer = 0;
+  cities = cities.map((el) => el.toLowerCase());
+
+  let arr = new Map();
+
+  for (let i = 0; i < cities.length; i++) {
+    if (cities.length < 3) {
+      if (!arr.has(cities[i])) {
+        arr.set(cities[i]);
+        answer += 5;
+      } else {
+        answer++;
+      }
+    } else {
+      if (arr.has(cities[i])) {
+        answer++;
+      } else {
+        const firstKey = arr.keys().next().value;
+        arr.delete(firstKey);
+        arr.set(cities[i]);
+
+        answer += 5;
+      }
+    }
+  }
+
+  return answer;
+}
+
+console.log(
+  solution(3, [
+    'Jeju',
+    'Pangyo',
+    'Seoul',
+    'NewYork',
+    'LA',
+    'Jeju',
+    'Pangyo',
+    'Seoul',
+    'NewYork',
+    'LA',
+  ])
+);