Time Complexity
Maximizing Area in a Bar Graph
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Given an array of n integers, where each integer represents the height of a bar in a bar graph, write a function that returns the maximum area that can be formed by choosing two bars from the array and stacking them on top of each other.
Find the Maximum Average Value in an Array
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Given an array of n integers, find the contiguous subarray of given length k that has the maximum average value. Output the maximum average value.
Longest Increasing Subsequence in an Array
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Given an array of integers, find the length of the longest increasing subsequence.
Longest Increasing Subsequence
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Given an array of integers, this problem seeks to find the length of the longest increasing subsequence within that array. For example, given the input array [10, 9, 2, 5 , 3, 7, 101, 18], the longest increasing subsequence would be of length 4.
Find the Maximum Sum of a Contiguous Subarray
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Given an array of n integers, this algorithm will find the maximum sum of any contiguous subarray of the array. For example, given the input array [1, -3, 2, 1, -1], the algorithm would output 3.
First non-repeating character in a string.
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Given a string, find the first non-repeating character. For example, in the string "abacabad", the first non-repeating character is 'c'.
Sum all elements in a list
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To sum all elements in a list, we can simply iterate through the list and add each element to a running total. This will take O(n) time, where n is the length of the list.
Longest Increasing Subsequence in an Array
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Given an array of integers, this problem seeks to find the length of the longest increasing subsequence within that array. For example, given the input array [10, 9, 2, 5 , 3, 7, 101, 18], the longest increasing subsequence would be of length 4.
