๐ฅ๋ฌธ์ ๋งํฌ
https://www.acmicpc.net/submit/1051/85874949
๐ฅํ์ด
๋ง๋ค ์ ์๋ ๊ฐ์ฅ ํฐ ์ ์ฌ๊ฐํ ๋ถํฐ ๋จ์ ๋ฐ๋ณต๋ฌธ์ ๋๋ฆฌ๋ฉด ํด๊ฒฐ ํ ์ ์๋ค.!
const fs = require("fs");
const input = fs.readFileSync("/dev/stdin").toString().split("\n");
const [r,c] = input[0].split(" ").map((n)=>Number(n))
let map =[] // [[1,0,0],[2,0,0]]
for(let i=1; i<=input.length-1; ++i){
let str = input[i]
let arr = str.split("").map((n)=>Number(n))
map.push(arr)
}
let least = Math.min(r,c)
let answer = 1
for(let i=least; i>=2; --i){
for(let sc=0; sc<=(c-i); ++sc){
for(let sr=0; sr<=(r-i); ++sr){
let v = map[sr][sc]
if(v===map[sr][sc+i-1] &&
v===map[sr+i-1][sc] &&
v===map[sr+i-1][sc+i-1]
){
answer=i*i
console.log(answer)
return
}
}
}
}
console.log(answer)
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