Create 1954,1961

서두나/SWEA/D2/1954. 달팽이 숫자.java

@@ -0,0 +1,61 @@
+import java.io.*;
+
+class Solution {
+
+	static int[][] drcs = { { 0, 1 }, { 1, 0 }, { 0, -1 }, { -1, 0 } };
+
+	public static void main(String args[]) throws Exception {
+
+		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+		int T;
+		T = Integer.parseInt(br.readLine());
+
+		for (int test_case = 1; test_case <= T; test_case++) {
+			int n = Integer.parseInt(br.readLine());
+			int dir = 0;
+
+			int[][] arr = new int[n][n];
+			boolean[][] visited = new boolean[n][n];
+
+			for (int i = 0; i < n; i++) {
+				for (int j = 0; j < n; j++) {
+					arr[i] = new int[n];
+				}
+			}
+
+			for (int i = 0; i < n; i++) {
+				for (int j = 0; j < n; j++) {
+					visited[i] = new boolean[n];
+				}
+			}
+
+			int r = 0;
+			int c = 0;
+
+			for (int i = 1; i <= n * n; i++) {
+				arr[r][c] = i;
+				visited[r][c] = true;
+
+				int nr = r + drcs[dir][0];
+				int nc = c + drcs[dir][1];
+
+				if (0 > nr || nr >= n || 0 > nc || nc >= n || visited[nr][nc]) {
+					dir = (dir + 1) % 4;
+					nr = r + drcs[dir][0];
+					nc = c + drcs[dir][1];
+				}
+				r = nr;
+				c = nc;
+			}
+
+			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();
+			}
+		}
+	}
+}

서두나/SWEA/D2/1961.숫자 배열 회전.java

@@ -0,0 +1,53 @@
+import java.io.*;
+
+class Solution {
+	static int n;
+	static char[][] arr;
+
+	public static char[][] rotate() {
+		char[][] temp = new char[n][n];
+
+		for (int i = 0; i < n; i++) {
+			for (int j = 0; j < n; j++) {
+				temp[i][j] = arr[n - j - 1][i];
+			}
+		}
+		return temp;
+	}
+
+	public static void main(String args[]) throws Exception {
+
+		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+		int T;
+		T = Integer.parseInt(br.readLine());
+
+		for (int test_case = 1; test_case <= T; test_case++) {
+			n = Integer.parseInt(br.readLine());
+			arr = new char[n][n];
+
+			for (int i = 0; i < n; i++) {
+				String[] temp = br.readLine().split(" ");
+				for (int j = 0; j < n; j++) {
+					arr[i][j] = temp[j].charAt(0);
+				}
+			}
+			String[][] result = new String[n][3];
+
+			for (int k = 0; k < 3; k++) {
+				arr = rotate();
+				for (int i = 0; i < n; i++) {
+					String temp = "";
+					for (int j = 0; j < n; j++) {
+						temp += arr[i][j];
+					}
+					result[i][k] = temp;
+				}
+			}
+			System.out.println("#" + test_case);
+			for (int i = 0; i < n; i++) {
+				System.out.println(result[i][0] + " " + result[i][1] + " " + result[i][2]);
+			}
+
+		}
+	}
+}