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c++ Programming Glossary: computeFast n choose k mod p for large n? http://stackoverflow.com/questions/10118137/fast-n-choose-k-mod-p-for-large-n formula comb n k n k n k n n 1 ... n k 1 k You know how to compute the numerator long long res 1 for long long i n i n k i res.. p and k ^ 1 will not be defined. To avoid that first compute the degree with which p is in n n 1 ... n k 1 and in k and compare.. computing the inverse number of each multiple in k we can compute k mod p and then compute the inverse of that number. Thus we..
OpenCV C++/Obj-C: Advanced square detection http://stackoverflow.com/questions/10533233/opencv-c-obj-c-advanced-square-detection vector using namespace cv using namespace std Point2f computeIntersect Vec2f line1 Vec2f line2 vector Point2f lineToPointPair.. 1 CV_PI 180 50 0 0 cout Detected lines.size lines. endl compute the intersection from the lines detected... vector Point2f intersections.. acceptLinePair line1 line2 CV_PI 32 Point2f intersection computeIntersect line1 line2 intersections.push_back intersection ..
I want to generate the nth term of the sequence 1,3,8,22,60 ,164 in Order(1) or order of (nlogn) http://stackoverflow.com/questions/11301992/i-want-to-generate-the-nth-term-of-the-sequence-1-3-8-22-60-164-in-order1-or cout rand m return 0 I want a faster method. How can I compute the nth term using the second formula.Is there any trick to..
Pass an array to a wrapped function as pointer+size or range http://stackoverflow.com/questions/11584599/pass-an-array-to-a-wrapped-function-as-pointersize-or-range only difference being the use of the local variable sz to compute the end arugment using the begin pointer. The only thing left..
When does a constexpr function get evaluated at compile time? http://stackoverflow.com/questions/14248235/when-does-a-constexpr-function-get-evaluated-at-compile-time under which criteria does the compiler decide whether to compute it at compile time or during runtime template typename base_t.. could there be a case where I would like the compiler to compute a constexpr function during compile time where the compiler..
Why aren't my include guards preventing recursive inclusion and multiple symbol definitions? http://stackoverflow.com/questions/14909997/why-arent-my-include-guards-preventing-recursive-inclusion-and-multiple-symbol compiler won't need to know the exact layout of A nor to compute its size in order to properly define class B . Hence it is enough..
How to Calculate Execution Time of a Code Snippet in C++ http://stackoverflow.com/questions/1861294/how-to-calculate-execution-time-of-a-code-snippet-in-c Calculate Execution Time of a Code Snippet in C I have to compute execution time of a C code snippet in seconds. It must be working.. import before clock_t startTime clock some code here to compute its execution duration in runtime cout double clock startTime..
How does C compute sin() and other math functions? http://stackoverflow.com/questions/2284860/how-does-c-compute-sin-and-other-math-functions does C compute sin and other math functions I've been poring through .NET.. can be calculated and have written my own routines to compute functions using taylor series for fun. I'm curious about how..
Does C++ limit recursion depth? http://stackoverflow.com/questions/2630054/does-c-limit-recursion-depth out how deep you can recurse. To know that you have to compute the size of the activation record or records of the recursive..
Potential Problem in “Swapping values of two variables without using a third variable” http://stackoverflow.com/questions/3741440/potential-problem-in-swapping-values-of-two-variables-without-using-a-third-var the accesses of b within the expression are being used to compute the final value that is being stored in b the behaviour is well..
http://stackoverflow.com/questions/6806637/convexity-defects-c-opencv cp hull i .x hull i .y cvSeqPush hullPoints cp And we compute convexity defects storage cvCreateMemStorage 0 defects cvConvexityDefects..
http://stackoverflow.com/questions/918676/generate-sha-hash-in-openssl this question From the command line it's simply printf compute sha1 openssl sha1 You can invoke the library like this #include.. #include openssl sha.h int main unsigned char ibuf compute sha1 unsigned char obuf 20 SHA1 ibuf strlen ibuf obuf int i..
OpenCv 2.3 C - How to isolate object inside image http://stackoverflow.com/questions/10315551/opencv-2-3-c-how-to-isolate-object-inside-image uchar for it end it if it points.push_back it.pos Compute minimal bounding box cv RotatedRect box cv minAreaRect cv Mat..
http://stackoverflow.com/questions/13216041/number-of-tuples etc. O n log n . int b sort a int c int length b ^2 Compute the sums of all of the numbers O n^2 for int i 0 i length b..
How to determine a region of interest and then crop an image using OpenCV http://stackoverflow.com/questions/15693900/how-to-determine-a-region-of-interest-and-then-crop-an-image-using-opencv Point right bottom box_points.push_back cv Point right top Compute minimal bounding box for the ROI Note for some unknown reason..
C++ unordered_map using a custom class type as the key http://stackoverflow.com/questions/17016175/c-unordered-map-using-a-custom-class-type-as-the-key k const using std size_t using std hash using std string Compute individual hash values for first second and third and combine..
How are exceptions implemented under the hood? http://stackoverflow.com/questions/1995734/how-are-exceptions-implemented-under-the-hood
Fastest cross-platform A* implementation? http://stackoverflow.com/questions/2107601/fastest-cross-platform-a-implementation reached. if n.equals goal return new Solution initial n Compute successor moves and update OPEN CLOSED lists. DepthTransition..
Compute Median of Values Stored In Vector - C++? http://stackoverflow.com/questions/2114797/compute-median-of-values-stored-in-vector-c Median of Values Stored In Vector C I'm a programming student..
How to use Boost in Visual Studio 2010 http://stackoverflow.com/questions/2629421/how-to-use-boost-in-visual-studio-2010 5. Boost.MPI Install a MPI distribution such as Microsoft Compute Cluster Pack. Follow steps 1 3 from the second set of instructions..
Algorithm to cover maximal number of points with one circle of given radius http://stackoverflow.com/questions/3229459/algorithm-to-cover-maximal-number-of-points-with-one-circle-of-given-radius the two unit circles C1 and C2 that pass through them. Compute the number of points of your set inside C1 and C2 Take the max...
Method resolution order in C++ http://stackoverflow.com/questions/3310910/method-resolution-order-in-c Σ C else Σ empty S f C Σ If S f C is empty § 10.2 5 Compute S f B i where B i is a base class of C for all i . Merge each..
string comparison with the most similar string http://stackoverflow.com/questions/5861718/string-comparison-with-the-most-similar-string usual measurement for this is the Levenshtein distance . Compute the Levenshtein distance from the original to each candidate..
Optimizations for pow() with const non-integer exponent? http://stackoverflow.com/questions/6475373/optimizations-for-pow-with-const-non-integer-exponent overestimate with an underestimate and take the average. Compute x^0.8 four instructions error ~ 3 . Compute x^ 0.4 one rsqrtps.. the average. Compute x^0.8 four instructions error ~ 3 . Compute x^ 0.4 one rsqrtps . This is quite accurate enough but does.. enough but does sacrifice the ability to work with zero. Compute x^0.4 one mulps . Compute x^ 0.2 one rsqrtps . Compute x^2 one..
How does Excel successfully Rounds Floating numbers even though they are imprecise? http://stackoverflow.com/questions/6930786/how-does-excel-successfully-rounds-floating-numbers-even-though-they-are-impreci corner case. The algorithm in C #include cmath std floor Compute 10 to some positive integral power. Dealing with overflow exponent..
Image scaling (KeepAspectRatioByExpanding) through OpenGL http://stackoverflow.com/questions/9011108/image-scaling-keepaspectratiobyexpanding-through-opengl for this operation. break case 2 KeepAspectRatio default Compute aspect ratio and offset Y for widescreen borders double ratiox..
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