C++ Range Sum Query on Immutable Array via Prefix Sum
Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. Example: Given nums = sumRange(0, 2): 1 sumRange(2, 5): …
Tag: c++
C++ Coding Exercise – Parallel For – Monte Carlo PI Calculation
November 11, 2015
c / c++, math, monte carlo, Monte Carlo Simulation, Monte Carlo Simulation Algorithm, multithreading, programming languages
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From this post, we know the non-deterministic approach to compute the approximation of math constant PI. The random algorithms e.g. such as xorshift need to be of high quality …
why C++ – another case study?
Hello, We did a profiling and found out the following performance bottleneck when adding many sources at once. The code is intended to generate a unique ID everytime, but …
C++ Function to Check if Integer is Power of Two
Given an integer, write a function to determine if it is a power of two. This is not new, and the solution has been posted at Using a Faster …
C++ Function to Get File Version using Win32 API (ANSI and Unicode version)
On Windows Operating System, the PE executables have file extension ending with *.exe and the DLL (Dynamic Link Library) end with *.dll. If you right click the property, and …