88차 3번 문제풀이

Author: sangminlee98

live8/test88/문제3/이상민.js

@@ -0,0 +1,25 @@
+function solution(n, lost, reserve) {
+  lost.sort();
+  reserve.sort();
+  let arr = [...lost];
+  lost.map((item) => {
+    if (reserve.includes(item)) {
+      arr.splice(arr.indexOf(item), 1);
+      reserve.splice(reserve.indexOf(item), 1);
+    }
+  });
+  let newArr = [...arr];
+
+  for (let i = 0; i < arr.length; i++) {
+    if (reserve.includes(arr[i] - 1) || reserve.includes(arr[i] + 1)) {
+      if (reserve.includes(arr[i] - 1)) {
+        reserve.splice(reserve.indexOf(arr[i] - 1), 1);
+        newArr.shift();
+        continue;
+      }
+      reserve.splice(reserve.indexOf(arr[i] + 1), 1);
+      newArr.shift();
+    }
+  }
+  return n - newArr.length;
+}