diff --git "a/cmkim/BaekJoon/\353\260\261\354\244\200_17179.py" "b/cmkim/BaekJoon/\353\260\261\354\244\200_17179.py"
new file mode 100644
index 0000000..fa0da0c
--- /dev/null
+++ "b/cmkim/BaekJoon/\353\260\261\354\244\200_17179.py"
@@ -0,0 +1,45 @@
+n, m, l = map(int, input().split())
+
+cut = []
+arr = []
+for i in range(m):  # 자르는 위치
+    cut.append(int(input()))
+#print(cut)
+
+for i in range(n):  # 자르는 횟수
+    arr.append(int(input()))
+
+def calculate(mid, count): # 가장 작은 조각의 길이 > mid 일때 횟수를 세서 count 값이 만들어지면 성공
+    prev = 0
+    for i in range(m):
+        if cut[i] - prev >= mid:
+            count -= 1
+            prev = cut[i]
+            if count == 0:
+                break
+
+
+    if count == 0 and l - prev >= mid:
+        return True
+    else:
+        return False
+
+for i in range(n):
+    piece = arr[i]
+    left = 0
+    right = l
+
+    while left + 1 < right:
+        mid = (left + right) // 2
+        if calculate(mid, piece):
+            left = mid
+        else:
+            right = mid
+
+    print(left)
+
+
+
+
+
+
diff --git "a/cmkim/BaekJoon/\353\260\261\354\244\200_4386.py" "b/cmkim/BaekJoon/\353\260\261\354\244\200_4386.py"
new file mode 100644
index 0000000..967ee88
--- /dev/null
+++ "b/cmkim/BaekJoon/\353\260\261\354\244\200_4386.py"
@@ -0,0 +1,48 @@
+import sys, math, heapq
+n = int(input())
+
+arr = []
+connected = []
+sum = 0
+cost = 1e9
+
+def dist(x1, y1, x2, y2):
+    return math.sqrt((x1 - x2)**2 + (y1 - y2)**2)
+
+for i in range(n):
+    x, y = map(float, input().split())
+    arr.append((x, y))
+
+q = []
+connected.append(0)
+for i in range(1, n):
+    heapq.heappush(q, (dist(arr[0][0], arr[0][1], arr[i][0], arr[i][1]), i))
+
+# print(connected)
+# print(q)
+
+while n != len(connected):
+    value, node = heapq.heappop(q)
+    while node in connected:
+        value, node = heapq.heappop(q)
+
+    sum += value
+    connected.append(node)
+
+    for i in range(n):
+        if i not in connected:
+            heapq.heappush(q, (dist(arr[node][0], arr[node][1], arr[i][0], arr[i][1]), i))
+
+print("%.2f"%(sum))
+
+
+
+
+
+
+
+
+
+
+
+
diff --git "a/cmkim/\354\235\264\352\262\203\354\235\264 \354\267\250\354\227\205\354\235\204 \354\234\204\355\225\234 \354\275\224\353\224\251 \355\205\214\354\212\244\355\212\270\353\213\244/\354\227\260\352\265\254\354\206\214_341p.py" "b/cmkim/\354\235\264\352\262\203\354\235\264 \354\267\250\354\227\205\354\235\204 \354\234\204\355\225\234 \354\275\224\353\224\251 \355\205\214\354\212\244\355\212\270\353\213\244/\354\227\260\352\265\254\354\206\214_341p.py"
new file mode 100644
index 0000000..8b8b136
--- /dev/null
+++ "b/cmkim/\354\235\264\352\262\203\354\235\264 \354\267\250\354\227\205\354\235\204 \354\234\204\355\225\234 \354\275\224\353\224\251 \355\205\214\354\212\244\355\212\270\353\213\244/\354\227\260\352\265\254\354\206\214_341p.py"	
@@ -0,0 +1,61 @@
+n, m = map(int, input().split())
+
+arr = []
+temp = [[0] * m for _ in range(n)]
+result = 0
+
+dx = [-1, 1, 0, 0]
+dy = [0, 0, -1, 1]
+
+for i in range(n):
+    arr.append(list(map(int, input().split())))
+
+
+
+def dfs(count):
+    global result
+
+    if count == 3:
+        for i in range(n):
+            for j in range(m):
+                temp[i][j] = arr[i][j]
+
+        for i in range(n):
+            for j in range(m):
+                if temp[i][j] == 2:
+                    virus(i, j)
+
+        result = max(result, get_score())
+        return
+
+    for i in range(n):
+        for j in range(m):
+            if arr[i][j] == 0:
+                arr[i][j] = 1
+                count += 1
+                dfs(count)
+                arr[i][j] = 0
+                count -= 1
+
+
+def virus(x, y):
+    for i in range(4):
+        nx = x + dx[i]
+        ny = y + dy[i]
+        if 0 <= nx < n and 0 <= ny < m:
+            if temp[nx][ny] == 0:
+                temp[nx][ny] = 2
+                virus(nx, ny)
+
+
+def get_score():
+    score = 0
+    for i in range(n):
+        for j in range(m):
+            if temp[i][j] == 0:
+                score += 1
+    return score
+
+
+dfs(0)
+print(result)
diff --git "a/cmkim/\354\235\264\352\262\203\354\235\264 \354\267\250\354\227\205\354\235\204 \354\234\204\355\225\234 \354\275\224\353\224\251 \355\205\214\354\212\244\355\212\270\353\213\244/\355\212\271\354\240\225 \352\261\260\353\246\254\354\235\230 \353\217\204\354\213\234 \354\260\276\352\270\260_339p.py" "b/cmkim/\354\235\264\352\262\203\354\235\264 \354\267\250\354\227\205\354\235\204 \354\234\204\355\225\234 \354\275\224\353\224\251 \355\205\214\354\212\244\355\212\270\353\213\244/\355\212\271\354\240\225 \352\261\260\353\246\254\354\235\230 \353\217\204\354\213\234 \354\260\276\352\270\260_339p.py"
new file mode 100644
index 0000000..e69de29