projectEUREKA - a collection of problems, puzzles and trivia

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Displaying problems 1 - 10 of 19 in total

Problem 974 - xor expression - Solution Verified

what does the following expression do ?

a ^= b ^= a ^= b
Solve it!

9 correct answers, 19 tries, 1 commented solution , 7 solvers: (guest) (pennypecker) Pradeep Kumbhashi (Deepzk) (csilviu) emily tadena (julyanruby_emily@yahoo.com) Ben (CaptainWilbur) (Tetha) (Show all user statistics)

Submitted by (ilduderino) on April 08 2010 | Discuss

Category interview

Problem 962 - c++ question - Solution Verified

What is the expected output ?
void print(int &x, int y, int *z) { x = 10; y = 20; z = (int *)30; }
int main()
{
int a = 1, ...
Solve it!

5 correct answers, 7 tries, 0 commented solutions , 5 solvers: (guest) (Northwolves) (pennypecker) (csilviu) (mihainex) (Show all user statistics)

Submitted by (kokoshanel) on March 31 2010 | Discuss

Category interview, Tags c/c++

Problem 961 - C question - Solution Verified

For int x = 1; predict the value in x after: x = ++x
Solve it!

26 correct answers, 76 tries, 0 commented solutions , 10 solvers: (guest) (mueschel) Akshay Dixit (akshaydixi) Ken Puleo (shibbibidy) (Northwolves) (yelly) (Piccamo) (pennypecker) Patricia Lorintiu (patricia) (csilviu) (Show all user statistics)

Submitted by (kokoshanel) on March 31 2010 | Discuss

Category interview

Problem 960 - C question - Solution Verified

Predict what gets printed by: printf("Goodbye") && printf(" Cruel") || printf(" World")
Solve it!

13 correct answers, 18 tries, 1 commented solution , 9 solvers: (guest) (mueschel) Akshay Dixit (akshaydixi) (godskalk) (Northwolves) (jitendra_theta) (pennypecker) (csilviu) (mihainex) (Show all user statistics)

Submitted by (kokoshanel) on March 31 2010 | Discuss

Category interview, Tags c/c++

Problem 959 - expected output - Solution Verified

what is the expected output?

int main() {
    char *xx = "This is a test";
    char yy[] = "This is not a test";
    char *a  ...
Solve it!

9 correct answers, 17 tries, 0 commented solutions , 6 solvers: (guest) (Northwolves) (godskalk) (pennypecker) (csilviu) (mihainex) (Show all user statistics)

Submitted by (kokoshanel) on March 31 2010 | Discuss

Category interview, Tags c/c++

Problem 845 - Merge - Solution Not Verified

Suppose we start with 10 companies that eventually merge into one big company. How many different ways are there for them to merge? ...
Solve it!

3 correct answers, 51 tries, 0 commented solutions , 1 solver: (jitendra_theta) (Show all user statistics)

Submitted by Robert (uzurpatorul) on January 22 2010 | Discuss

Category interview

Problem 844 - Expected value - Solution Verified

Consider the following algorithm to find the minimum element in an array of distinct numbers A[0..n]. One extra variable tmp is allocated ...
Solve it!

24 correct answers, 50 tries, 1 commented solution , 10 solvers: (guest) (bobbygriffin) Kartikay Kaushik (kartikaykausik) (yat) (sherwinyu) (jchen123) (tedz) Swapnil Nagare (swapnilnagare) (strauchj) (Northwolves) (Show all user statistics)

Submitted by (ilduderino) on January 22 2010 | Discuss

Category interview, Tags technical interview

Problem 820 - Quicksort on a multicore machine - Solution Verified

Multicore machines have a few cores, usually 2 or 4 and perhaps as many as 16. Nonetheless, the complexity of comparison sorting ...
Solve it!

25 correct answers, 36 tries, 0 commented solutions , 10 solvers: (bobbygriffin) (Northwolves) (guest) (yat) (TimothyB) Henry (hintss) Kartikay Kaushik (kartikaykausik) (sherwinyu) (joe.mike10) (harmanani) (Show all user statistics)

Submitted by (kokoshanel) on January 07 2010 | Discuss

Category interview

Problem 813 - 3 fastest horses - Solution Verified

There are 25 horses and you need to figure out the three fastest horses by placing them into races. Assume there is no tie in the ...
Solve it!

29 correct answers, 185 tries, 1 commented solution , 10 solvers: (uprising22) (yat) (bobbygriffin) (Northwolves) (guest) (strauchj) Akshay Dixit (akshaydixi) (minmin0624) (Luther) (TimothyB) (Show all user statistics)

Submitted by (ilduderino) on December 28 2009 | Discuss

Category interview

Problem 795 - Hash table - Solution Verified

Hash tables can contribute to an efficient average-case solution for all of the problems described below EXCEPT:
Solve it!

24 correct answers, 43 tries, 0 commented solutions , 10 solvers: (guest) (icradu) (joe.mike10) (mueschel) (bobbygriffin) (temugen) (Northwolves) Adam Blank (trilconoan) (parameswari) (yat) (Show all user statistics)

Submitted by Joe (work) on December 17 2009 | Discuss

Category interview

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