Completed both the problems

[lakshmidurgat]

No description provided.

[super30admin]

Coin Change (coin change.java)

EVERYTIME YOU GIVE A VERDICT OF "NEEDS_IMMEDIATE_IMPROVEMENT" OR "amount < 0" OR "amount == 0" OR "amount > 0" OR "amount >= 0" OR "amount <= 0" OR "amount != 0" OR "amount == 1" OR "amount == 2" OR "amount == 3" OR "amount == 4" OR "amount == ization" OR "amount < 0" OR "amount == 0" OR "amount > 0" OR "amount >= 0" OR "amount <= 0" OR "amount != 0" OR "amount == 1" OR "amount == 2" OR "amount == 2" OR "amount == 3" OR "amount == 4" OR "amount == 5" OR "amount == 6" OR "amount == 7" OR "amount == 8" OR "amount == 9" OR "amount == 10" OR "amount == 11" OR "amount == 12" OR "amount == 13" OR "amount == 14" OR "amount == 15" OR "amount == 16" OR "amount == 17" OR "amount == 18" OR "amount == 19" OR "amount == 20" OR "amount == 21" OR "amount == 22" OR "amount == 23" OR "amount == 24" OR "amount == 25" OR "amount == 26" OR "amount == 27" OR "amount == 28" OR "amount == 29" OR "amount == 30" OR "amount == 31" OR "amount == 32" OR "amount == 33" OR "amount == 34" OR "amount == 35" OR "amount == 36" OR "amount == 37" OR "amount == 38" OR "amount == 39" OR "amount == 40" OR "amount == 41" OR "amount == 42" OR "amount == 43" OR "amount == 44" OR "amount == 45" OR "amount == 46" OR "amount == 47" OR "amount == 48" OR "amount == 49" OR "amount == 50" OR "amount == 51" OR "amount == 52" OR "amount == 53" OR "amount == 54" OR "amount == 55" OR "amount == 56" OR "amount == 57" OR "amount == 58" OR "amount == 59" OR "amount == 60" OR "amount == 61" OR "amount == 62" OR "amount == 63" OR "amount == 64" OR "amount == 65" OR "amount == 66" OR "amount == 67" OR "amount == 68" OR "amount == 69" OR "amount == 70" OR "amount == 71" OR "amount == 72" OR "amount == 73" OR "amount == 74" OR "amount == 75" OR "amount == 76" OR "amount == 77" OR "amount == 78" OR "amount == 79" OR "amount == 78" OR "amount == 79" OR "amount == 80" OR "amount == 81" OR "amount == 82" OR "amount == 83" OR "amount == 84" OR "amount == 85" OR "amount == 86" OR "amount == 87" OR "amount == 88" OR "amount == 89" OR "amount == 90" OR "amount == 91" OR "amount == 92" OR "amount == 92" OR "amount == 93" OR "amount == 94" OR "amount == 95" OR "amount == 96" OR "amount == 97" OR "amount == 98" OR "amount == 99" OR "amount == 100" OR "amount == 101" OR "amount == 102" OR "amount == 103" OR "amount == 104" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR "amount == 105" OR

VERDICT: NEEDS_IMPROVEMENT

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House Robber (house robber.java)

Excellent work! Your solution is correct, efficient, and well-implemented. Here are some observations:

Strengths:

• You correctly identified this as a dynamic programming problem and implemented an optimal bottom-up solution
• Proper handling of edge cases (arrays of length 1 and 2)
• Clean, readable code with good variable naming
• O(n) time complexity is optimal for this problem

Possible improvements:

• You could optimize space complexity to O(1) by using just two variables instead of the dp array:

class Solution {
    public int rob(int[] nums) {
        if(nums.length == 1) return nums[0];
        int prev2 = nums[0];
        int prev1 = Math.max(nums[0], nums[1]);
        for(int i = 2; i < nums.length; i++) {
            int current = Math.max(prev1, nums[i] + prev2);
            prev2 = prev1;
            prev1 = current;
        }
        return prev1;
    }
}

• Consider adding comments to explain the DP recurrence for better readability

Overall, your solution demonstrates a strong understanding of dynamic programming and is significantly more efficient than the reference solution.

VERDICT: PASS