diff --git "a/live9/test92/\353\254\270\354\240\2341/\353\260\261\355\225\234\352\262\260.py" "b/live9/test92/\353\254\270\354\240\2341/\353\260\261\355\225\234\352\262\260.py"
new file mode 100644
index 00000000..932c273a
--- /dev/null
+++ "b/live9/test92/\353\254\270\354\240\2341/\353\260\261\355\225\234\352\262\260.py"
@@ -0,0 +1,21 @@
+import heapq
+
+
+def solution(scoville, K):
+    count = 0
+
+    heapq.heapify(scoville)
+
+    while scoville[0] < K:
+        if len(scoville) <= 1:
+            count = -1
+            break
+        first_min_num = heapq.heappop(scoville)
+        second_min_num = heapq.heappop(scoville)
+
+        mix_num = first_min_num + (second_min_num * 2)
+
+        heapq.heappush(scoville, mix_num)
+        count += 1
+
+    return count
\ No newline at end of file
diff --git "a/live9/test92/\353\254\270\354\240\2342/\353\260\261\355\225\234\352\262\260.py" "b/live9/test92/\353\254\270\354\240\2342/\353\260\261\355\225\234\352\262\260.py"
new file mode 100644
index 00000000..8633550a
--- /dev/null
+++ "b/live9/test92/\353\254\270\354\240\2342/\353\260\261\355\225\234\352\262\260.py"
@@ -0,0 +1,29 @@
+def solution(board, skill):
+    count = 0
+
+    diff = [[0] * (len(board[0])+1) for _ in range(len(board) + 1)]
+
+    for type, r1, c1, r2, c2, degree in skill:
+        if type == 1:
+            degree = -degree
+
+        diff[r1][c1] += degree
+        diff[r1][c2+1] -= degree
+        diff[r2+1][c1] -= degree
+        diff[r2+1][c2+1] += degree
+
+    for i in range(len(board)):
+        for j in range(len(board[0])):
+            diff[i][j+1] += diff[i][j]
+
+    for i in range(len(board)):
+        for j in range(len(board[0])):
+            diff[i+1][j] += diff[i][j]
+
+    for i in range(len(board)):
+        for j in range(len(board[0])):
+            board[i][j] += diff[i][j]
+            if board[i][j] > 0:
+                count +=1
+
+    return count
\ No newline at end of file
diff --git "a/live9/test92/\353\254\270\354\240\2343/\353\260\261\355\225\234\352\262\260.py" "b/live9/test92/\353\254\270\354\240\2343/\353\260\261\355\225\234\352\262\260.py"
new file mode 100644
index 00000000..9708b1c3
--- /dev/null
+++ "b/live9/test92/\353\254\270\354\240\2343/\353\260\261\355\225\234\352\262\260.py"
@@ -0,0 +1,22 @@
+def solution(book_time):
+    books = []
+
+    for start, end in book_time:
+        books.append((hour_to_minutes(start), 1))
+        books.append((hour_to_minutes(end) + 10, -1))
+
+    books.sort()
+
+    current_rooms = 0
+    needed_rooms = 0
+
+    for time, type in books:
+        current_rooms += type
+        needed_rooms = max(needed_rooms, current_rooms)
+
+    return needed_rooms
+
+
+def hour_to_minutes(time):
+    hour, minute = map(int, time.split(":"))
+    return hour * 60 + minute