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Minimum Word Break

Given a string s, break s such that every partition can be found in the dictionary. Return the minimum number of breaks needed. Example: Given a dictionary ["Cat", "Mat", "Ca", "tM", "at", "C", "D ...
strings facebook
Berkan Teber
Published on Jan 16th, 2018

Maximum Flips in a Binary String to Make All 1’s in Left and All 0’s in Right

Given a binary string, we can flip all 1s and 0s . Calculate the minimum flips required to make all 1s in left and all 0s in right. There should be at least one 0 and one 1. Examples: "1011000" can ...
bit-manipulation facebook
Berkan Teber
Published on Jan 16th, 2018

Find All Possible Interpretations

Consider a coding system for alphabets to integers where ‘a’, ‘b’, ..., ‘z’ are represented as 1, 2, ..., 26. Given a string of digits 1..9 as input, write a function that prints all valid interpre ...
stringsrecursion facebook
Berkan Teber
Published on Jan 16th, 2018

Largest Sum Subarray with At Least k Numbers

Given an array, find the subarray (containing at least k numbers) which has the largest sum. Return the sum. Examples: [-4, -2, 1, -3] and k = 2 should return -1. The subarray is [-2, 1]. [1, 1, 1 ...
arrays facebook
Berkan Teber
Published on Jan 16th, 2018

Decode String Recursively

An encoded string is given. The pattern in which the strings are encoded is as follows: [substr] means that the substring 'substr' appears count times. The task is to decode the given string. Exampl ...
stringsstacks facebook
Berkan Teber
Published on Jan 16th, 2018

Find the Maximum Value by Inserting ‘+’, ’*’ and '()'

Given an array of numbers, the task is to find the maximum value from the string, you can add a ‘+’ or ‘*’ sign between any two numbers. You should also use parantheses. Examples: [0, 1, 2, 3, 1] c ...
mathematics-probability facebook
Berkan Teber
Published on Jan 16th, 2018

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