[SWEA] 3일차 - 회문 2

 

 

 

[문제]

https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AV14Rq5aABUCFAYi

SW Expert Academy

 

 

 

[소스 코드]

import java.util.*;
import java.io.*;
public class Solution {
	static char[][] map;
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		for(int t=1;t<=10;t++) {
			int tc = Integer.parseInt(br.readLine());
			map = new char[100][100];
			for(int i=0;i<100;i++) {
				map[i] = br.readLine().toCharArray();
			}
			int result = 1;
			out:
			for(int len=100;len>=2;len--) {
				for(int i=0;i<100;i++) {
					for(int j=0;j<=100-len;j++) {
						if(canRow(i,j,len) || canCol(j,i,len)) {
							result = len;
							break out;
						}
					}
				}
			}
			System.out.println("#"+tc+" "+result);
		}
	}
	private static boolean canRow(int r,int c,int len) {
		for(int i=0;i<len/2;i++) {  
			if(map[r][c+i] != map[r][c+len-1-i]) return false;
		}
		return true;
	}
	private static boolean canCol(int r,int c,int len) {
		for(int i=0;i<len/2;i++) {
			if(map[r+i][c] != map[r+len-1-i][c]) return false;
		}
		return true;
	}
}