(动态规划)小朋友分糖果

/**
  * 
  * @param ratings int整型一维数组 
  * @return int整型
  */
function candy( ratings ) {
    // write code here
    var count = 0
    var candy = new Array(ratings.length).fill(1)
    for(var i=1;i<ratings.length;i++){
        if(ratings[i]>ratings[i-1]){
            candy[i] = candy[i-1] + 1
        }
    }
    for(var i=ratings.length-2;i>=0;i--){
        if(ratings[i]>ratings[i+1] && candy[i]<=candy[i+1]){
            candy[i] = candy[i+1] + 1
        }
    }
    candy.forEach(function(item){count+=item})
    return count;
}
module.exports = {
    candy : candy
};