diff --git "a/src/main/kotlin/hyunsoo/49week/\355\225\240\354\235\270 \355\226\211\354\202\254.kt" "b/src/main/kotlin/hyunsoo/49week/\355\225\240\354\235\270 \355\226\211\354\202\254.kt"
new file mode 100644
index 00000000..faf9a742
--- /dev/null
+++ "b/src/main/kotlin/hyunsoo/49week/\355\225\240\354\235\270 \355\226\211\354\202\254.kt"	
@@ -0,0 +1,63 @@
+package hyunsoo.`49week`
+
+/**
+ *
+ * <문제>
+ * [할인 행사](https://school.programmers.co.kr/learn/courses/30/lessons/131127)
+ *
+ * - 아이디어
+ *
+ * - 트러블 슈팅
+ *
+ */
+class `전현수_할인_행사` {
+
+    fun solution(want: Array<String>, number: IntArray, discount: Array<String>): Int {
+
+        var answer = 0
+
+        for (i in 0 .. discount.size - 10) {
+
+            val wishList = mutableMapOf<String, Int>()
+
+            want.forEachIndexed { index, item ->
+                wishList[item] = number[index]
+            }
+
+            repeat(10) {
+                val index = i + it
+                wishList[discount[index]]?.let { pre ->
+                    wishList[discount[index]] = pre - 1
+                }
+            }
+            if (wishList.values.all { it <= 0 }) answer += 1
+        }
+
+        return answer
+    }
+}
+
+fun main() {
+    전현수_할인_행사().solution(
+        arrayOf("banana", "apple", "rice", "pork", "pot"),
+        intArrayOf(3, 2, 2, 2, 1),
+        arrayOf(
+            "chicken",
+            "apple",
+            "apple",
+            "banana",
+            "rice",
+            "apple",
+            "pork",
+            "banana",
+            "pork",
+            "rice",
+            "pot",
+            "banana",
+            "apple",
+            "banana"
+        )
+    ).apply {
+        println(this)
+    }
+}
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