diff --git "a/weekly/week04/BOJ_14925_\353\252\251\354\236\245\352\261\264\354\204\244\355\225\230\352\270\260/Gyuhyeok99.cpp" "b/weekly/week04/BOJ_14925_\353\252\251\354\236\245\352\261\264\354\204\244\355\225\230\352\270\260/Gyuhyeok99.cpp"
new file mode 100644
index 0000000..3626d48
--- /dev/null
+++ "b/weekly/week04/BOJ_14925_\353\252\251\354\236\245\352\261\264\354\204\244\355\225\230\352\270\260/Gyuhyeok99.cpp"
@@ -0,0 +1,37 @@
+#include <iostream>
+
+using namespace std;
+
+int n, m, ret;
+int arr[1001][1001], dp[1001][1001];
+
+int main() {
+    ios::sync_with_stdio(false);
+    cin.tie(NULL); cout.tie(NULL);
+
+    cin >> m >> n;
+
+    for (int i = 1; i <= m; i++) {
+        for (int j= 1; j <= n; j++) {
+            cin >> arr[i][j];
+        }
+    }
+
+    for (int i = 1; i <= m; i++) {
+        for (int j = 1; j <= n; j++) {
+            if (!arr[i][j]) {
+                if (!dp[i - 1][j - 1] || !dp[i][j - 1] || !dp[i - 1][j]) {
+                    dp[i][j] = 1;
+                }
+                else {
+                    dp[i][j] = min(min(dp[i - 1][j - 1], dp[i][j - 1]), dp[i - 1][j]) + 1;
+                }
+                ret = max(ret, dp[i][j]);
+            }
+        }
+    }
+
+    cout << ret << '\n';
+
+    return 0;
+}