#dailycodingchallenge résultats de recherche
#DailyCodingChallenge Day 278 Task: Count index pairs whose hour sum forms a complete day (multiple of 24). Solution: Use modulo 24. For each hour, count how many previous hours have a complementary remainder that completes 24. #LeetCode
#DailyCodingChallenge Day 277 Task: Find how many bit positions differ between two integers. Solution: XOR the numbers to mark differing bits, then count the set bits using xor & (xor - 1) until zero. #LeetCode
#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
#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
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
#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
#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
#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
![coder_s_Snippet's tweet image. #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 &amp; last digits, check gcd(first, last) == 1 for every (i &lt; j), and count all valid beautiful pairs.
#LeetCode](https://pbs.twimg.com/media/G7_IwUkagAMfbo6.png)
#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
![coder_s_Snippet's tweet image. #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](https://pbs.twimg.com/media/G75_gemaoAAcbuh.png)
#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
#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
![coder_s_Snippet's tweet image. #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](https://pbs.twimg.com/media/G7vmS6caMAsTHbu.png)
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