题解 | #字符串最后一个单词的长度#

const line = readline()
function counter(line) {
    let count = 0
    for(let i = line.length-1;i>0;i--) {
        if(line[i]===" ") {
            return count
            break;
        }else {
            count++
        }
    }
    return ++count

}
console.log(counter(line))