function solution(heights) {
    let answer = [];
    let len = heights.length;
    heights.reverse();
    heights.forEach((v, i) => {
        let bool = true;
        heights.forEach((value, index) => {
            if(v < value && i < index && bool){
                bool = false;
                answer.push(len - index);
            }
        })
        if(bool) answer.push(0);
    })
    return answer.reverse();
}