Engenheiros de software criam programas para desenvolver softwares de computador. As entrevistas são altamente técnicas. Portanto, prepare-se para resolver problemas de codificação e de matemática. As perguntas específicas que são feitas dependem do tipo de programação exigido na vaga. Pesquise sobre uma área específica de software, como desenvolvimento web, desenvolvimento de aplicativos ou desenvolvimento de sistemas.
Come out with an algorithm for getting the column number provided the column name in a excel sheet and vice versa. Excel has a naming convention of A,B..Z,AA,AB,AC..ZZ,AAA... This had to be converted to the column numbers. A will be 1 and AA will 27.. Also the algorithm to find the name provided column number.
Implement a function string balanceParanthesis(string s); which given a string s consisting of some parenthesis returns a string s1 in which parenthesis are balanced and differences between s and s1 are minimum. Eg - "(ab(xy)u)2)" -> "(ab(xy)u)2" ")))(((" -> ""
Given a string of an arithmetic expression, composed of numbers, '+' and '*', calculate the result - e.g. "2+4*5*7"
Find the deepest common ancestor of two nodes in a tree structure.
class A { public A() { foo(); } public void foo() { System.out.println("Class A"); } } class B extends A { public B(){} public void foo() { System.out.println("Class B"); } } class main { public static void main(String[] args) { A a = new B(); } } What does it print? Class A or Class B?
Given two strings representing integer numbers ("123" , "30") return a string representing the sum of the two numbers ("153")
Determine if an array from 1..n has a duplicate in constant time and space.
Find number of ones in an integer.
Write a function(int[]) -> int that returns the lowest unassigned integer. For example [] -> 1 (empty set), [1] -> 2, [5, 3, 1] -> 2. Basically just sort the array, iterate, and compare current and previous. If there is a gap then that's your number.
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