algorithm - Finding all possible combinations of numbers to reach …
2011年1月8日 · Here is a Java version which is well suited for small N and very large target sum, when complexity O(t*N) (the dynamic solution) is greater than the exponential algorithm. My …
What is the difference between a heuristic and an algorithm?
2010年2月25日 · An algorithm is the description of an automated solution to a problem. What the algorithm does is precisely defined. The solution could or could not be the best possible one …
What is the difference between an algorithm and a function?
An Algorithm usually refers to the method or process used to end up with the result after mathematical processing. A Function is a subroutine used to avoid writing the same code over …
algorithm - What does O (log n) mean exactly? - Stack Overflow
2010年2月22日 · Algorithm 1: Algorithm 1 prints hello once and it doesn't depend on n, so it will always run in constant time, so it is O(1). print "hello"; Algorithm 2: Algorithm 2 prints hello 3 …
algorithm - upper bound, lower bound - Stack Overflow
2013年2月4日 · Whatever the algorithm (merge sort, quick sort, etc), we cannot do better than this bound of \Omega(n log n). Lower bounds tell us, intuitively, how hard a particular problem is. …
algorithm - Difference between Big-O and Little-O Notation
2009年9月1日 · Stuff you know: A common way to classify algorithms is by runtime, and by citing the big-Oh complexity of an algorithm, you can get a pretty good estimation of which one is …
Algorithm to find duplicate in an array - Stack Overflow
2010年11月16日 · Your algorithm contains a buffer overrun. i starts with 0, so I assume the indexes into array A are zero-based, i.e. the first element is A[0] , the last is A[A.length-1] . …
Algorithm to return all combinations of k elements from n
2008年9月24日 · doc_180: Chase's algorithm is more complicated than the other algorithms but has the added benefit that each successive combination differs from the previous by just one …
algorithm - How do I check if a number is a palindrome ... - Stack …
2008年10月14日 · @Steve314 to describe an algorithm to convert an integer to a string, which of course requires you to understand modulo - no. Computing in the target number system, being …
Algorithm to search for a list of words in a text - Stack Overflow
2014年1月15日 · The algorithm builds a state machine from the words you want to search, and then runs the input text through that state machine, outputting matches as they're found. …