From 641042a55dc65bf3ca2007aa99c4b8737dd72b77 Mon Sep 17 00:00:00 2001
From: skdudddl <knyg99@naver.com>
Date: Tue, 16 Jan 2024 21:01:05 +0900
Subject: [PATCH 1/2] Create 1940.java

---
 nayeongkim/SWEA/D2/1954.java | 48 ++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 nayeongkim/SWEA/D2/1954.java

diff --git a/nayeongkim/SWEA/D2/1954.java b/nayeongkim/SWEA/D2/1954.java
new file mode 100644
index 00000000..d37f483c
--- /dev/null
+++ b/nayeongkim/SWEA/D2/1954.java
@@ -0,0 +1,48 @@
+import java.util.Scanner;
+import java.io.FileInputStream;
+
+/*
+   사용하는 클래스명이 Solution 이어야 하므로, 가급적 Solution.java 를 사용할 것을 권장합니다.
+   이러한 상황에서도 동일하게 java Solution 명령으로 프로그램을 수행해볼 수 있습니다.
+ */
+class Solution4 {
+    public static void main(String args[]) throws Exception {
+
+        Scanner sc = new Scanner(System.in);
+        int T;
+        T = sc.nextInt();
+        int[] dx = {0, 1, 0, -1};
+        int[] dy = {1, 0, -1, 0};
+
+        for (int test_case = 1; test_case <= T; test_case++) {
+            int N = sc.nextInt();
+            int[][] arr = new int[N][N];
+            int cnt = 1;
+            int x = 0;
+            int y = -1;
+            int d = 0;
+            while (cnt <= N * N) {
+                int nx = x + dx[d];
+                int ny = y + dy[d];
+                if (nx >= 0 && nx < N && ny >= 0 && ny < N && arr[nx][ny] == 0) {
+                    arr[nx][ny] = cnt++;
+                    x = nx;
+                    y = ny;
+                } else {
+                    d = (d + 1) % 4;
+
+                }
+
+            }
+            System.out.println("#"+test_case);
+            for(int i = 0; i<N; i++){
+               for(int j = 0; j<N; j++){
+                   System.out.print(arr[i][j]);
+               }
+                System.out.println();
+            }
+
+
+        }
+    }
+}
\ No newline at end of file

From b4439e78356edc4bd6443ae66f1b86c6e2ee6dc5 Mon Sep 17 00:00:00 2001
From: skdudddl <knyg99@naver.com>
Date: Tue, 16 Jan 2024 21:20:55 +0900
Subject: [PATCH 2/2] Create 1940.java

---
 nayeongkim/SWEA/D2/1961.java | 57 ++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 nayeongkim/SWEA/D2/1961.java

diff --git a/nayeongkim/SWEA/D2/1961.java b/nayeongkim/SWEA/D2/1961.java
new file mode 100644
index 00000000..45f2f091
--- /dev/null
+++ b/nayeongkim/SWEA/D2/1961.java
@@ -0,0 +1,57 @@
+import java.util.Scanner;
+import java.io.FileInputStream;
+
+/*
+   사용하는 클래스명이 Solution 이어야 하므로, 가급적 Solution.java 를 사용할 것을 권장합니다.
+   이러한 상황에서도 동일하게 java Solution 명령으로 프로그램을 수행해볼 수 있습니다.
+ */
+class Solution {
+    public static void main(String args[]) throws Exception {
+
+        Scanner sc = new Scanner(System.in);
+        int T;
+        T = sc.nextInt();
+        for (int test_case = 1; test_case <= T; test_case++) {
+            int N = sc.nextInt();
+            int[][] arr = new int[N][N];
+            int[][] arr90 = new int[N][N];
+            int[][] arr180 = new int[N][N];
+            int[][] arr270 = new int[N][N];
+            for (int i = 0; i < N; i++) {
+                for (int j = 0; j < N; j++) {
+                    arr[i][j] = sc.nextInt();
+
+                }
+            }
+            for (int i = 0; i < N; i++) {
+                for (int j = 0; j < N; j++) {
+                    arr90[i][j] = arr[N-1-j][i];
+                }
+            }
+            for (int i = 0; i < N; i++) {
+                for (int j = 0; j < N; j++) {
+                    arr180[i][j] = arr90[N-1-j][i];
+                }
+            }
+            for (int i = 0; i < N; i++) {
+                for (int j = 0; j < N; j++) {
+                    arr270[i][j] = arr180[N-1-j][i];
+                }
+            }
+            for (int i = 0; i < N; i++) {
+                for(int j=0;j<N;j++){
+                    System.out.print(arr90[i][j]);
+                }
+                System.out.print(" ");
+                for(int j=0;j<N;j++){
+                    System.out.print(arr180[i][j]);
+                }
+                System.out.print(" ");
+                for(int j=0;j<N;j++){
+                    System.out.print(arr270[i][j]);
+                }
+                System.out.println();
+            }
+        }
+    }
+}
\ No newline at end of file