Tagged: Beginner

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Print Stack in reverse order.

Objective: Given a stack, write a program to print the stack elements in reverse order. Example: Approach: Use Temporary stack: Take temporary stack, and copy all the items from the given stack to a...

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Given an array, Print sum of all subsets

Objective: Given an array of numbers, write an algorithm to print all the subsets sum individually.   Example: Given Input: [1, 2] Output: 3 1 2 0 Explanation: subsets are [0], [1], [2], [1, 2]...

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Maximum number edges to make Acyclic Undirected/Directed Graph

Given- Given V vertices, what is the maximum number of edges can be added to make Acyclic Undirected Graph. Follow up – what is the maximum number of edges that can be added to...

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Find all the numbers in the range which has prime set bits.

Objective: Given a range, find all the numbers in the range which has prime set bits. Example: L = 4, R = 10 Output: 5 Explanation: 4 = 1 0 0 ( not prime)...

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Find the maximum number present in a String

Given a string with alphabets and numbers. Write an algorithm to find the maximum number in the string. If any number is greater than equal to Max_Value of integer then return the Max_Value. Example:...

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Convert Roman Number to Integer

Objective: Given a Roman number, write a program to convert it to Integer. Roman Number –   Letters used in Roman numerals and the corresponding numerical values are given in the table below. Rules: ...

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Longest contiguous character in a given String – O(N) Solution

Objective: Given an input string, write an algorithm to find the longest contiguous character or in other words, find a maximum consecutive character in the string. Example: Input: “aaabbccccddbbaaa” Output: c, count = 4...

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