Dart Game / 중급

Author: oh-chaeyeon

oh-chaeyeon/2주차_스택/Dart_Game.js

@@ -0,0 +1,24 @@
+function solution(dartResult) {
+  const stack = [];
+  let i = 0;
+
+  while (i < dartResult.length) {
+    const isTen = dartResult[i] === "1" && dartResult[i + 1] === "0";
+    let score = isTen ? 10 : parseInt(dartResult[i]);
+    i += isTen ? 2 : 1;
+
+    const bonus = dartResult[i++];
+    score **= bonus === "S" ? 1 : bonus === "D" ? 2 : 3;
+
+    if (dartResult[i] === "*" || dartResult[i] === "#") {
+      score *= dartResult[i] === "*" ? 2 : -1;
+      if (dartResult[i++] === "*" && stack.length) {
+        stack[stack.length - 1] *= 2;
+      }
+    }
+
+    stack.push(score);
+  }
+
+  return stack.reduce((sum, cur) => sum + cur, 0);
+}