From 33982ea8de17c93a63eedaa173d4bba6087851a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EC=8B=A0=EC=A7=80?=
 <101992179+ksinji@users.noreply.github.com>
Date: Fri, 23 Jan 2026 01:08:54 +0900
Subject: [PATCH 1/3] Add Java solution for largest square in a matrix

---
 ...1\355\230\225 \354\260\276\352\270\260.md" | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 "ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"

diff --git "a/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md" "b/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"
new file mode 100644
index 00000000..8ffb3e3b
--- /dev/null
+++ "b/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"	
@@ -0,0 +1,26 @@
+```java
+class Solution {
+    public int solution(int[][] board) {
+        int n = board.length;
+        int m = board[0].length;
+
+        int[][] dp = new int[n][m];
+        int max = 0;
+
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < m; j++) {
+                if (board[i][j] == 1) {
+                    if (i == 0 || j == 0) {
+                        dp[i][j] = 1;
+                    } else {
+                        dp[i][j] = Math.min(Math.min(dp[i-1][j], dp[i][j-1]),dp[i-1][j-1])+1;
+                    }
+                    max = Math.max(max, dp[i][j]);
+                }
+            }
+        }
+
+        return max * max;
+    }
+}
+```

From bab0e949e524859fa4339234a7cd365b9f289939 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EC=8B=A0=EC=A7=80?=
 <101992179+ksinji@users.noreply.github.com>
Date: Fri, 23 Jan 2026 01:09:27 +0900
Subject: [PATCH 2/3] =?UTF-8?q?Delete=20ksinji/202601/23=20PGM=20=EA=B0=80?=
 =?UTF-8?q?=EC=9E=A5=20=ED=81=B0=20=EC=A0=95=EC=82=AC=EA=B0=81=ED=98=95=20?=
 =?UTF-8?q?=EC=B0=BE=EA=B8=B0.md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...1\355\230\225 \354\260\276\352\270\260.md" | 26 -------------------
 1 file changed, 26 deletions(-)
 delete mode 100644 "ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"

diff --git "a/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md" "b/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"
deleted file mode 100644
index 8ffb3e3b..00000000
--- "a/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"	
+++ /dev/null
@@ -1,26 +0,0 @@
-```java
-class Solution {
-    public int solution(int[][] board) {
-        int n = board.length;
-        int m = board[0].length;
-
-        int[][] dp = new int[n][m];
-        int max = 0;
-
-        for (int i = 0; i < n; i++) {
-            for (int j = 0; j < m; j++) {
-                if (board[i][j] == 1) {
-                    if (i == 0 || j == 0) {
-                        dp[i][j] = 1;
-                    } else {
-                        dp[i][j] = Math.min(Math.min(dp[i-1][j], dp[i][j-1]),dp[i-1][j-1])+1;
-                    }
-                    max = Math.max(max, dp[i][j]);
-                }
-            }
-        }
-
-        return max * max;
-    }
-}
-```

From 3cc8c6133deba002d330faf0899799de9e30e53c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B0=95=EC=8B=A0=EC=A7=80?=
 <101992179+ksinji@users.noreply.github.com>
Date: Fri, 23 Jan 2026 01:09:58 +0900
Subject: [PATCH 3/3] =?UTF-8?q?[20260123]=20PGM=20/=20LV2=20/=20=EA=B0=80?=
 =?UTF-8?q?=EC=9E=A5=20=ED=81=B0=20=EC=A0=95=EC=82=AC=EA=B0=81=ED=98=95=20?=
 =?UTF-8?q?=EC=B0=BE=EA=B8=B0=20/=20=EA=B0=95=EC=8B=A0=EC=A7=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...1\355\230\225 \354\260\276\352\270\260.md" | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 "ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"

diff --git "a/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md" "b/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"
new file mode 100644
index 00000000..8ffb3e3b
--- /dev/null
+++ "b/ksinji/202601/23 PGM \352\260\200\354\236\245 \355\201\260 \354\240\225\354\202\254\352\260\201\355\230\225 \354\260\276\352\270\260.md"	
@@ -0,0 +1,26 @@
+```java
+class Solution {
+    public int solution(int[][] board) {
+        int n = board.length;
+        int m = board[0].length;
+
+        int[][] dp = new int[n][m];
+        int max = 0;
+
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < m; j++) {
+                if (board[i][j] == 1) {
+                    if (i == 0 || j == 0) {
+                        dp[i][j] = 1;
+                    } else {
+                        dp[i][j] = Math.min(Math.min(dp[i-1][j], dp[i][j-1]),dp[i-1][j-1])+1;
+                    }
+                    max = Math.max(max, dp[i][j]);
+                }
+            }
+        }
+
+        return max * max;
+    }
+}
+```