diff --git "a/src/main/kotlin/hyunsoo/12week/\352\267\270\353\243\271 \353\213\250\354\226\264 \354\262\264\354\273\244.kt" "b/src/main/kotlin/hyunsoo/12week/\352\267\270\353\243\271 \353\213\250\354\226\264 \354\262\264\354\273\244.kt"
new file mode 100644
index 00000000..a8c11404
--- /dev/null
+++ "b/src/main/kotlin/hyunsoo/12week/\352\267\270\353\243\271 \353\213\250\354\226\264 \354\262\264\354\273\244.kt"	
@@ -0,0 +1,38 @@
+package hyunsoo.`12week`
+
+
+/**
+ * <문제>
+ * [그룹 단어 체커](https://www.acmicpc.net/problem/1316)
+ *
+ * 문자열을 순차탐색하며 등장한 문자들을 list에 담는다.
+ * 이전의 단어와 현재의 단어가 다를 때 바뀐단어가 기존에 등장했다면 그룹단어가 아님!!
+ */
+fun main() {
+
+    val wordCnt = readln().toInt()
+    var groupWordCnt = 0
+
+    repeat(wordCnt) {
+
+        val existedWordList = mutableListOf<Char>()
+        val targetWord = readln()
+        var lastChar = targetWord.first().apply {
+            existedWordList.add(this)
+        }
+
+        targetWord.drop(1).forEach { curChar ->
+            if (lastChar != curChar) {
+                if (curChar in existedWordList) {
+                    return@repeat
+                } else {
+                    existedWordList.add(curChar)
+                    lastChar = curChar
+                }
+            }
+        }
+        groupWordCnt++
+    }
+
+    println(groupWordCnt)
+}
diff --git "a/src/main/kotlin/hyunsoo/12week/\354\210\230\353\246\254\352\263\265 \355\225\255\354\212\271.kt" "b/src/main/kotlin/hyunsoo/12week/\354\210\230\353\246\254\352\263\265 \355\225\255\354\212\271.kt"
new file mode 100644
index 00000000..5f518e78
--- /dev/null
+++ "b/src/main/kotlin/hyunsoo/12week/\354\210\230\353\246\254\352\263\265 \355\225\255\354\212\271.kt"	
@@ -0,0 +1,27 @@
+package hyunsoo.`12week`
+
+/**
+ * <문제>
+ * [수리공 항승](https://www.acmicpc.net/problem/1449)
+ *
+ * 물새는 곳을 하나씩 막아보자앗..!!
+ */
+fun main() {
+
+    val (_, tapeLength) = readln().split(" ").map { it.toInt() }
+    val leakPositionList = readln().split(" ")
+        .map { it.toInt() }
+        .sorted()
+
+    var lastTapedPosition = leakPositionList.first() + tapeLength - 0.5f
+    var tapedCnt = 1
+
+    leakPositionList.drop(1).forEach { leakPosition ->
+        if (lastTapedPosition < leakPosition) {
+            lastTapedPosition = leakPosition + tapeLength - 0.5f
+            tapedCnt++
+        }
+    }
+
+    println(tapedCnt)
+}
\ No newline at end of file
diff --git "a/src/main/kotlin/hyunsoo/12week/\355\212\270\353\237\255.kt" "b/src/main/kotlin/hyunsoo/12week/\355\212\270\353\237\255.kt"
new file mode 100644
index 00000000..bb5e94d9
--- /dev/null
+++ "b/src/main/kotlin/hyunsoo/12week/\355\212\270\353\237\255.kt"
@@ -0,0 +1,61 @@
+package hyunsoo.`12week`
+
+import java.util.ArrayDeque
+import java.util.Queue
+
+/**
+ * <문제>
+ * [트럭](https://www.acmicpc.net/problem/13335)
+ *
+ *
+ */
+
+data class Truck(var weight: Int, var pos: Int = 1) {
+    fun move() {
+        this.pos++
+    }
+}
+
+fun main() {
+
+    val waitQueue: Queue<Truck> = ArrayDeque()
+    val processQueue: Queue<Truck> = ArrayDeque()
+    var usedTime = 1
+
+    val (_, bridgeLength, bridgeMaxWeight) = readln().split(" ").map { it.toInt() }
+
+    readln().split(" ")
+        .map { it.toInt() }
+        .forEach { weight ->
+            waitQueue.add(Truck(weight))
+        }
+
+    var isArrived = false
+    while (waitQueue.isNotEmpty() || processQueue.isNotEmpty()) {
+
+        usedTime++
+
+        // 최대 하중 무게만큼 트럭 올리기
+        if (waitQueue.isNotEmpty() &&
+            processQueue.sumOf { it.weight } + waitQueue.peek().weight <= bridgeMaxWeight
+        ) {
+            processQueue.add(waitQueue.poll())
+        }
+
+        // 트럭들 이동
+        processQueue.forEach { truck ->
+            truck.apply {
+                move()
+                if (bridgeLength < this.pos) isArrived = true
+            }
+        }
+
+        if (isArrived) {
+            processQueue.poll()
+            isArrived = false
+        }
+    }
+
+    println(usedTime)
+
+}
\ No newline at end of file