[프로그래머스/javascript] 땅따먹기 (꼭 다시풀기)

function solution(land) {
    var answer = [];
    let accumulate = 0;
    let score = [];
    let currentCol = -1;
    for(let i=1;i<land.length;i++){
        land[i][0]+=Math.max(land[i-1][1],land[i-1][2],land[i-1][3])
        land[i][1]+=Math.max(land[i-1][0],land[i-1][2],land[i-1][3])
        land[i][2]+=Math.max(land[i-1][0],land[i-1][1],land[i-1][3])
        land[i][3]+=Math.max(land[i-1][0],land[i-1][2],land[i-1][1])
    }
    return Math.max(...land[land.length-1])

}