You are given an infinite number of coins of different denominations and an amount. Find the minimum number of coins required to make up that amount.

ReadGiven an array of integers, maximize sub of subsequence such that the sum of any two elements in the subsequence is greater than or equal to any other element.

ReadGiven k sorted linked list, merge those list to form a final sorted linked list.

ReadAdd two integers without using Arithmetic Operators.

ReadGiven an array containing n distinct integers in the range [0, n], one number is missing from the array. Find the missing number.

ReadGiven a number n, count the number of 1's in the binary representation of each number from 0 to n.

ReadGiven an array of integers, check if the array contains any duplicates.

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