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🚀 Daily Code Solutions | 🔥 Solving challenges | 🏆 LeetCode

India

Aangemeld in februari 2025

279Posts 1Volgers 9Volgend

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9 u

#DailyCodingChallenge Day 276 Task: Make all array elements distinct by repeatedly removing 3 elements from the front. Solution: Try removing 0, 3, 6… elements. After each step, check if the remaining array has all unique values using a set. Find the min ops needed. #LeetCode

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16 dec.

#DailyCodingChallenge Day 275 Task: Find the maximum absolute difference between adjacent elements in a circular array. Solution: Traverse the array, compare each element with the next one, and also the last with the first. Track and return the max absolute difference. #LeetCode

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15 dec.

coder's snippet #DailyCodingChallenge Day 274 Task: Find the maximum distance between two houses with different colors. Solution: Compare the first house with all from the end, and the last house with all from the start. The largest valid gap is the answer. #LeetCode

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14 dec.

#DailyCodingChallenge Day 273 Task: Split numbers into two arrays based on last element comparison. Solution: Put first two numbers in separate arrays, then add each next number to the array with the larger last element and concatenate both arrays. #LeetCode

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13 dec.

#DailyCodingChallenge Day 272 Task: Find the integer x that was added to every element of nums1 to make it equal to nums2. Solution: Sort both arrays and return the difference between their smallest elements, which gives the added integer x. #LeetCode

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12 dec.

#DailyCodingChallenge Day 271 Task: Count all index pairs where the first digit of nums[i] and the last digit of nums[j] are coprime. Solution: Extract first & last digits, check gcd(first, last) == 1 for every (i < j), and count all valid beautiful pairs. #LeetCode

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11 dec.

#DailyCodingChallenge Day 270 Task: Check if the array forms a valid permutation of [1…n-1, n, n]. Solution: Find the max value n, ensure array size is n+1, count frequencies, confirm 1…n–1 appear once and n appears twice. #LeetCode

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10 dec.

#DailyCodingChallenge Day 269 Task: Make the array sum divisible by k using minimum decrements. Solution: Find sum % k. If it’s 0, no change needed. Otherwise, that remainder itself is the number of operations required. #LeetCode

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9 dec.

#DailyCodingChallenge Day 268 Task: Count how many pairs (i, j) satisfy: nums1[i] is divisible by nums2[j] * k. Solution: Loop through both arrays, compute num2 * k, and increment the count whenever num1 % product == 0. #LeetCode

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9 dec.

#DailyCodingChallenge Day 267 Task: Convert a date (yyyy-mm-dd) into binary format without leading zeros. Solution: Split the date, convert year–month–day to binary using toBinaryString(), and join them back with dashes. #LeetCode

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7 dec.

#DailyCodingChallenge Day 266 Task: Split each word using a given separator and return only non-empty parts. Solution: Manually parse characters: build substrings, add them when hitting the separator, and skip empty results. #LeetCode

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6 dec.

#DailyCodingChallenge Day 265 Task: Determine who wins a coin-picking game where each move must total 115. Solution: Simulate turns: each round removes 1×75 + 4×10 coins. Whoever can't make the move loses. #LeetCode

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5 dec.

#DailyCodingChallenge Day 264 Task: Find the smallest number ≥ n whose digit product is divisible by t. Solution: Start from n, compute each number’s digit product, and return the first one divisible by t. #LeetCode

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4 dec.

#DailyCodingChallenge Day 263 Task: Decide if Alice can win by choosing either all single-digit numbers or all double-digit numbers. Solution: Sum single and double digits separately. Alice wins if either total is strictly greater than the other group. #LeetCode

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3 dec.

#DailyCodingChallenge Day 262 Task: Count how many word pairs exist where one word is both a prefix and suffix of another. Solution: For every pair (i, j) with i < j, check if words[j] starts and ends with words[i]. If yes, count it. #LeetCode

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2 dec.

#DailyCodingChallenge Day 261 Task: Verify if the grid follows two rules: each value must match the value below it and differ from the one to its right. Solution: Loop through all cells and check both conditions, return false on any violation, otherwise return true. #LeetCode

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1 dec.

#DailyCodingChallenge Day 260 Task: Find all missing numbers between the smallest and largest values in the array. Solution: Identify the min and max, then check each number in that range and collect the ones not present. #LeetCode

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30 nov.

#DailyCodingChallenge Day 259 Task: Pair the smallest and largest numbers, compute their average each time, and return the smallest of those averages. Solution: Sort the array, use two pointers from both ends, calculate averages, and track the minimum. #LeetCode

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29 nov.

#DailyCodingChallenge Day 258 Task: Find the longest subarray where the product of all elements equals gcd(arr) × lcm(arr). Solution: Check every possible subarray, maintain running product, GCD, and LCM, and update the answer when the condition holds. #LeetCode

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28 nov.

#DailyCodingChallenge Day 257 Task: Count how many original strings Alice could have meant before accidentally holding a key too long. Solution: Group repeating characters, each extra duplicate adds one possible original version, sum all possibilities. #LeetCode