Problems

3,947+ problems · 946 Easy · 2062 Medium · 939 Hard

Active:Easy· 946 results

Title	Solution	Practice	Difficulty	Companies	Topics
1789. Primary Department for Each Employee	Solution	Solve	Easy	Amazon+4	Database
1790. Check if One String Swap Can Make Strings Equal	Solution	Solve	Easy	Amazon+4	Counting Hash Table+1
1791. Find Center of Star Graph	Solution	Solve	Easy	Amazon+4	Graph
1795. Rearrange Products Table	Solution	Solve	Easy	Amazon+1	Database
1796. Second Largest Digit in a String	Solution	Solve	Easy	Google+2	Hash Table String
1800. Maximum Ascending Subarray Sum	Solution	Solve	Easy	Amazon+3	Array
1805. Number of Different Integers in a String	Solution	Solve	Easy	-	Hash Table String
1809. Ad-Free Sessions	Solution	Solve	Easy	Amazon	Database
1812. Determine Color of a Chessboard Square	Solution	Solve	Easy	Jpmorgan	Math String
1816. Truncate Sentence	Solution	Solve	Easy	Amazon+1	Array String
1821. Find Customers With Positive Revenue this Year	Solution	Solve	Easy	Google	Database
1822. Sign of the Product of an Array	Solution	Solve	Easy	Amazon+2	Array Math
1826. Faulty Sensor	Solution	Solve	Easy	Meta	Array Two Pointers
1827. Minimum Operations to Make the Array Increasing	Solution	Solve	Easy	Amazon+3	Array Greedy
1832. Check if the Sentence Is Pangram	Solution	Solve	Easy	Amazon+5	Hash Table String
1837. Sum of Digits in Base K	Solution	Solve	Easy	Amazon+1	Math
1844. Replace All Digits with Characters	Solution	Solve	Easy	Google	String
1848. Minimum Distance to the Target Element	Solution	Solve	Easy	Amazon+1	Array
1853. Convert Date Format	Solution	Solve	Easy	-	Database
1854. Maximum Population Year	Solution	Solve	Easy	Amazon+8	Array Counting+1
1859. Sorting the Sentence	Solution	Solve	Easy	Amazon+3	Sorting String
1863. Sum of All Subset XOR Totals	Solution	Solve	Easy	Adobe+5	Array Backtracking+4
1869. Longer Contiguous Segments of Ones than Zeros	Solution	Solve	Easy	-	String
1873. Calculate Special Bonus	Solution	Solve	Easy	Google	Database
1876. Substrings of Size Three with Distinct Characters	Solution	Solve	Easy	Amazon+3	Counting Hash Table+2
1880. Check if Word Equals Summation of Two Words	Solution	Solve	Easy	-	String
1886. Determine Whether Matrix Can Be Obtained By Rotation	Solution	Solve	Easy	Amazon+3	Array Matrix
1890. The Latest Login in 2020	Solution	Solve	Easy	Google	Database
1893. Check if All the Integers in a Range Are Covered	Solution	Solve	Easy	Amazon+2	Array Hash Table+1
1897. Redistribute Characters to Make All Strings Equal	Solution	Solve	Easy	MoEngage	Counting Hash Table+1
1903. Largest Odd Number in String	Solution	Solve	Easy	Accenture+5	Greedy Math+1
1909. Remove One Element to Make the Array Strictly Increasing	Solution	Solve	Easy	Amazon+2	Array
1913. Maximum Product Difference Between Two Pairs	Solution	Solve	Easy	Google	Array Sorting
1920. Build Array from Permutation	Solution	Solve	Easy	Amazon+4	Array Simulation
1925. Count Square Sum Triples	Solution	Solve	Easy	Bloomberg+4	Enumeration Math
1929. Concatenation of Array	Solution	Solve	Easy	Amazon+7	Array Simulation
1933. Check if String Is Decomposable Into Value-Equal Substrings	Solution	Solve	Easy	-	String
1935. Maximum Number of Words You Can Type	Solution	Solve	Easy	Amazon+3	Hash Table String
1939. Users That Actively Request Confirmation Messages	Solution	Solve	Easy	-	Database
1941. Check if All Characters Have Equal Number of Occurrences	Solution	Solve	Easy	Amazon+3	Counting Hash Table+1
1945. Sum of Digits of String After Convert	Solution	Solve	Easy	Bloomberg+3	Simulation String
1952. Three Divisors	Solution	Solve	Easy	Google+1	Enumeration Math+1
1957. Delete Characters to Make Fancy String	Solution	Solve	Easy	Amazon+5	String
1961. Check If String Is a Prefix of Array	Solution	Solve	Easy	Uber	Array String+1
1965. Employees With Missing Information	Solution	Solve	Easy	-	Database
1967. Number of Strings That Appear as Substrings in Word	Solution	Solve	Easy	Uber	Array String
1971. Find if Path Exists in Graph	Solution	Solve	Easy	Amazon+4	Breadth-First Search Depth-First Search+2
1974. Minimum Time to Type Word Using Special Typewriter	Solution	Solve	Easy	IBM+2	Greedy String
1978. Employees Whose Manager Left the Company	Solution	Solve	Easy	Amazon+3	Database
1979. Find Greatest Common Divisor of Array	Solution	Solve	Easy	Amazon+3	Array Math+1