1942. The Number of the Smallest Unoccupied Chair LeetCode Solution 1941. Check if All Characters Have Equal Number of Occurrences LeetCode Solution 1938. Maximum Genetic Difference Query LeetCode Solution 1937. Maximum Number of Points with Cost LeetCode Solution 1936. Add Minimum Number of Rungs LeetCode Solution 1935. Maximum Number of Words You Can Type LeetCode Solution 1934. Confirmation Rate LeetCode Solution 1932. Merge BSTs to Create Single BST LeetCode Solution 1931. Painting a Grid With Three Different Colors LeetCode Solution 1930. Unique Length-3 Palindromic Subsequences LeetCode Solution 1929. Concatenation of Array LeetCode Solution 1928. Minimum Cost to Reach Destination in Time LeetCode Solution 1927. Sum Game LeetCode Solution 1926. Nearest Exit from Entrance in Maze LeetCode Solution 1925. Count Square Sum Triples LeetCode Solution 1923. Longest Common Subpath LeetCode Solution 1922. Count Good Numbers LeetCode Solution 1921. Eliminate Maximum Number of Monsters LeetCode Solution 1920. Build Array from Permutation LeetCode Solution 1916. Count Ways to Build Rooms in an Ant Colony LeetCode Solution 1915. Number of Wonderful Substrings LeetCode Solution 1914. Cyclically Rotating a Grid LeetCode Solution 1913. Maximum Product Difference Between Two Pairs LeetCode Solution 1912. Design Movie Rental System LeetCode Solution 1911. Maximum Alternating Subsequence Sum LeetCode Solution 1910. Remove All Occurrences of a Substring LeetCode Solution 1909. Remove One Element to Make the Array Strictly Increasing LeetCode Solution 1907. Count Salary Categories LeetCode Solution 1906. Minimum Absolute Difference Queries LeetCode Solution 1905. Count Sub Islands LeetCode Solution