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Software development engineer Interview Questions

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The questions were not very difficult but you really need to have all the concepts crystal-clear and be ready to apply them successfully. One of the questions was "how to count the letters in this string:" "The quick brown fox jumps over the lazy dog";

12 Answers

public static int countWords(String str){ if(str == null || str.isEmpty()) return 0; int count = 0; for(int e = 0; e < str.length(); e++){ if(str.charAt(e) != ' '){ count++; while(str.charAt(e) != ' ' && e < str.length()-1){ e++; } }else{ e++; } } return count; }

Sorry, the above version has an error!!!!!!!!!!!!!!!!!!!!!!!! concider this one: public static int countWords(String str){ if(str == null || str.isEmpty()) return 0; int count = 0; for(int e = 0; e < str.length(); e++){ if(str.charAt(e) != ' '){ count++; while(str.charAt(e) != ' ' && e < str.length()-1){ e++; } } } return count; }

# That's why i love Python: len(re.findall('[a-zA-Z]', s))

The first coding question was to determine whether a list of integers with size N, contains all the numbers from one to N.

7 Answers

Connect nodes at the same level in a binary tree

3 Answers

1. How to achieve automatic type conversion from type X to type Y? a. X can define the member function operator Y() b. a) or b) can be used c. Y can define the constructor Y(const X&) d. none of the above 2. class Coordinate{ int x; int y; public: Coordinate(int a=0, int b=0) { x=a; y=b; }; }; What are the values for the following object: Coordinate point(10); a. x=10,y=0 b. x=0,y=10 c. x=10,y=10 d. x=0,y=0 3. What type of argument can the following function take : Void foo(); a. any number or type of arguments b. a character c. an integer d. no an integer argument of any type 4. Consider the following function declarations in a header file: void doit(char *, int); int doit(char *) ; float doit(float, float) ; Which of the following declarations cannot follow in the same header: a. void doit(int, char *); b. int doit(int) ; c. float doit(char *) ; d. int doit(int, int) ;

3 Answers

Python related: generators, dictionary comprehensions, questions regarding the collections module One of the brainteasers that I got: You have 10 fair coins, flip them each. Prove, that the probability of getting odd number of heads equals the probability of getting even number of heads.

3 Answers

Do you expect wind power generation to be relatively high on a clear and cold day?

2 Answers

Explain a time where you demenstrated X?

2 Answers

write a function to find the n-th fibonacci number

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Are you married? Do you have any kids? Where do you live?

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What attracted you to this role?

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