kolakoski序列

              

搜狐笔试=。=

当时少想一个slow的指针。。呜呜呜哇的一声哭出来

function kolakoski(token0, token1) {
    token0 = token0.split(' ')
    var n = +token0[0], m = +token0[1];
    var arr = token1.split(' ').map(function (val) {
        return +val;
    });
    var num = 0, point = 0, b = [], slow = 0;
    b[0] = arr[0];
    while (num < n) {
        var cur = b[slow++];
        while (cur > 0) {
            b[num++] = arr[point];
            if (num == n) break;
            cur--;
        }
        point = (point + 1) % 4;
    }
    b.forEach((val) => {
        console.log(val);
    })
}