/** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * * @param cost int整型一维数组 * @return int整型 */ function minCostClimbingStairs( cost ) { // write code here if(cost.length===1||cost.length===2)return 0; let len = cost.length; let dep = Array.from({length:len+1},()=>0); for(let i=2;i<=len;i++){ dep[i] = Math.min(dep[i-1]+cost[i-1],dep[i-2]+cost[i-2]);//动态方程是关键 } return dep[len] } module.exports = { minCostClimbingStairs : minCostClimbingStairs };