HouseRobber.java

/**
 * 198. House Robber
 * 打家劫舍。经典动态规划问题
 * @author LBW
 */
public class HouseRobber {
    public int rob(int[] nums) {
        int len = nums.length;
        if (len == 0)
            return 0;
        int[] dp = new int[len+1];
        dp[0] = 0;
        dp[1] = nums[0];
        for (int i = 2; i <= len; i++) {
            dp[i] = Math.max(dp[i-1], dp[i-2] + nums[i-1]);
        }
        return dp[len];
    }
}