From ceeb65a49105fa894ca0f9eb0fcf119f4b9f5519 Mon Sep 17 00:00:00 2001
From: SehyeonLee <909am@neostack.co.kr>
Date: Thu, 6 Feb 2025 17:26:09 +0900
Subject: [PATCH 1/2] =?UTF-8?q?problems=20=EB=AC=B8=EC=A0=9C=20=ED=92=80?=
 =?UTF-8?q?=EC=9D=B4=20=EC=99=84=EB=A3=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/terry/p_1.java | 40 +++++++++++++++++++++++++++++++++++
 problems/terry/p_2.java | 43 ++++++++++++++++++++++++++++++++++++++
 problems/terry/p_3.java | 46 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 129 insertions(+)
 create mode 100644 problems/terry/p_1.java
 create mode 100644 problems/terry/p_2.java
 create mode 100644 problems/terry/p_3.java

diff --git a/problems/terry/p_1.java b/problems/terry/p_1.java
new file mode 100644
index 0000000..c56ea61
--- /dev/null
+++ b/problems/terry/p_1.java
@@ -0,0 +1,40 @@
+package study.d_250206;
+
+import java.util.*;
+import java.io.*;
+
+public class p_1 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+
+        //given
+        int n = Integer.parseInt(br.readLine());
+        int arr[][] = new int[n][n];
+
+
+        //when
+        // 배열 초기화
+        for (int i = 0; i < n; i++) {
+            StringTokenizer st = new StringTokenizer(br.readLine());
+            for (int j = 0; j < n; j++) {
+                arr[i][j] = Integer.parseInt(st.nextToken());
+            }
+        }
+
+        //then
+        int sum = 0;
+
+        for(int i = 0; i<n; i++){
+            for(int j = 0; j < n; j++){
+                sum += arr[i][i]; // '\' 대각선 요소 합
+                sum += arr[i][n - 1 - i]; // '/' 대각선 요소 합
+            }
+        }
+
+        bw.write(String.valueOf(sum));
+
+        br.close();
+        bw.close();
+    }
+}
diff --git a/problems/terry/p_2.java b/problems/terry/p_2.java
new file mode 100644
index 0000000..3bff364
--- /dev/null
+++ b/problems/terry/p_2.java
@@ -0,0 +1,43 @@
+package study.d_250206;
+
+import java.util.*;
+import java.io.*;
+
+
+public class p_2 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+
+
+        //given
+        int n, m;
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        n = Integer.parseInt(st.nextToken());
+        m = Integer.parseInt(st.nextToken());
+        int[][] arr = new int[n][m];
+
+        //when
+        // 배열 초기화
+        for (int i = 0; i < n; i++) {
+            st = new StringTokenizer(br.readLine());
+            for (int j = 0; j < m; j++) {
+                arr[i][j] = Integer.parseInt(st.nextToken()); // 배열 초기화
+            }
+        }
+
+        //then
+        int sum = 0;
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < n; j++) {
+                if (i == 0 || i == (n - 1) || j == 0 || j == (m - 1)) // i 혹은 j가 첫번째, 마지막 인덱스면 더함
+                    sum += arr[i][j];
+            }
+        }
+
+        bw.write(String.valueOf(sum));
+
+        br.close();
+        bw.close();
+    }
+}
diff --git a/problems/terry/p_3.java b/problems/terry/p_3.java
new file mode 100644
index 0000000..3d6628e
--- /dev/null
+++ b/problems/terry/p_3.java
@@ -0,0 +1,46 @@
+package study.d_250206;
+
+import java.util.*;
+import java.io.*;
+
+public class p_3 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+
+        //given
+        int n, m;
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        n = Integer.parseInt(st.nextToken());
+        m = Integer.parseInt(st.nextToken());
+        int[][] arr = new int[n][m];
+
+        //when
+        //배열 초기화
+        for (int i = 0; i < n; i++) {
+            st = new StringTokenizer(br.readLine());
+            for (int j = 0; j < m; j++) {
+                arr[i][j] = Integer.parseInt(st.nextToken());
+            }
+        }
+
+        int[][] reverse = new int[m][n]; // 회전 배열
+        for (int i = 0; i < n; i++) {
+            for (int j = 0; j < m; j++) {
+                reverse[j][n - 1 - i] = arr[i][j]; // 90도 회전
+            }
+        }
+
+        //then
+        for (int i = 0; i < m; i++) {
+            for (int j = 0; j < n; j++) {
+                bw.write(String.valueOf(reverse[i][j] + " "));
+            }
+            bw.newLine();
+        }
+
+        br.close();
+        bw.close();
+    }
+}
+

From 7b9af7a29292d74e44636ca39254115523771013 Mon Sep 17 00:00:00 2001
From: SehyeonLee <909am@neostack.co.kr>
Date: Fri, 7 Feb 2025 00:53:58 +0900
Subject: [PATCH 2/2] =?UTF-8?q?problems=20=EC=BD=94=EB=93=9C=20=EC=88=98?=
 =?UTF-8?q?=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/terry/p_1.java | 11 +++++------
 problems/terry/p_2.java |  4 ++--
 problems/terry/p_3.java |  4 ++--
 3 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/problems/terry/p_1.java b/problems/terry/p_1.java
index c56ea61..fdbaa67 100644
--- a/problems/terry/p_1.java
+++ b/problems/terry/p_1.java
@@ -1,4 +1,4 @@
-package study.d_250206;
+package study.problems;
 
 import java.util.*;
 import java.io.*;
@@ -10,7 +10,7 @@ public static void main(String[] args) throws IOException {
 
         //given
         int n = Integer.parseInt(br.readLine());
-        int arr[][] = new int[n][n];
+        int[][] arr = new int[n][n];
 
 
         //when
@@ -25,11 +25,10 @@ public static void main(String[] args) throws IOException {
         //then
         int sum = 0;
 
-        for(int i = 0; i<n; i++){
-            for(int j = 0; j < n; j++){
-                sum += arr[i][i]; // '\' 대각선 요소 합
+        for (int i = 0; i < n; i++) {
+            sum += arr[i][i]; // '\' 대각선 요소 합
+            if (i != (n - 1 - i)) // 겹치는 요소 제외
                 sum += arr[i][n - 1 - i]; // '/' 대각선 요소 합
-            }
         }
 
         bw.write(String.valueOf(sum));
diff --git a/problems/terry/p_2.java b/problems/terry/p_2.java
index 3bff364..75a563f 100644
--- a/problems/terry/p_2.java
+++ b/problems/terry/p_2.java
@@ -1,4 +1,4 @@
-package study.d_250206;
+package study.problems;
 
 import java.util.*;
 import java.io.*;
@@ -29,7 +29,7 @@ public static void main(String[] args) throws IOException {
         //then
         int sum = 0;
         for (int i = 0; i < n; i++) {
-            for (int j = 0; j < n; j++) {
+            for (int j = 0; j < m; j++) {
                 if (i == 0 || i == (n - 1) || j == 0 || j == (m - 1)) // i 혹은 j가 첫번째, 마지막 인덱스면 더함
                     sum += arr[i][j];
             }
diff --git a/problems/terry/p_3.java b/problems/terry/p_3.java
index 3d6628e..448f28a 100644
--- a/problems/terry/p_3.java
+++ b/problems/terry/p_3.java
@@ -1,4 +1,4 @@
-package study.d_250206;
+package study.problems;
 
 import java.util.*;
 import java.io.*;
@@ -34,7 +34,7 @@ public static void main(String[] args) throws IOException {
         //then
         for (int i = 0; i < m; i++) {
             for (int j = 0; j < n; j++) {
-                bw.write(String.valueOf(reverse[i][j] + " "));
+                bw.write(reverse[i][j] + " ");
             }
             bw.newLine();
         }