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Problems with tag O(n)

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Find Subarrays With Equal Sum ->

Easy, #2395, 2 solutions

Find Subsequence of Length K With the Largest Sum ->

Easy, #2099, 2 solutions

Find Substring With Given Hash Value ->

Hard, #2156, 2 solutions

Find Target Indices After Sorting Array ->

Easy, #2089, 2 solutions

Find the Celebrity ->

Medium, #277, 3 solutions

Find the Connected Component in the Undirected Graph ->

Medium, #431, 1 solutions

Find the Derangement of An Array ->

Medium, #634, 2 solutions

Find the Difference of Two Arrays ->

Easy, #2215, 2 solutions

Find the Difference ->

Easy, #389, 3 solutions

Find the Distinct Difference Array ->

Easy, #2670, 2 solutions

Find the Divisibility Array of a String ->

Medium, #2575, 2 solutions

Find the Duplicate Number ->

Medium, #287, 4 solutions

Find The First Player to win K Games in a Row ->

Medium, #3175, 2 solutions

Find the Highest Altitude ->

Easy, #1732, 3 solutions

Find the Index of Permutation ->

Medium, #3109, 2 solutions

Find the Integer Added to Array I ->

Easy, #3131, 2 solutions

Find the Integer Added to Array II ->

Medium, #3132, 2 solutions

Find the Kth Largest Integer in the Array ->

Medium, #1985, 2 solutions

Find the Level of Tree with Minimum Sum ->

Medium, #3157, 2 solutions

Find the Longest Balanced Substring of a Binary String ->

Easy, #2609, 2 solutions

Find the Longest Equal Subarray ->

Medium, #2831, 2 solutions

Find the Longest Semi-Repetitive Substring ->

Medium, #2730, 2 solutions

Find the Longest Substring Containing Vowels in Even Counts ->

Medium, #1371, 2 solutions

Find the Longest Valid Obstacle Course at Each Position ->

Hard, #1964, 2 solutions

Find the Losers of the Circular Game ->

Easy, #2682, 2 solutions

Find the Maximum Sum of Node Values ->

Hard, #3068, 2 solutions

Find the Median of the Uniqueness Array ->

Hard, #3134, 2 solutions

Find the Maximum Number of Elements in Subset ->

Medium, #3020, 2 solutions

Find the Middle Index in Array ->

Easy, #1991, 2 solutions

Find the Minimum and Maximum Number of Nodes Between Critical Points ->

Medium, #2058, 2 solutions