Show how to explicitly allocate and deallocate blocks of memory in your language. Show access to different types of memory (i.e., heap, stack, shared, foreign) if applicable. While the C […]
Continue ReadingWhy Is Printing “B” Dramatically Slower Than Printing “#”?
I generated two matrices of 1000 x 1000: First Matrix: O and #. Second Matrix: O and B. Using the following code, the first matrix took 8.52 seconds to complete: […]
Continue ReadingC++: Write CSV File
void write_csv_file(double A[], int length, string file_name) //Function that prints array A to a *.csv file { ofstream output(file_name); for(int i = 0; i < length; i++) { output << […]
Continue ReadingC++: Map Range
Given two ranges, [a1,a2] and [b1,b2]; then a value s in range [a1,a2] is linearly mapped to a value t in range [b1,b2] when: The task is to write a […]
Continue ReadingC++: Radix Sort
// C++ LSD Radix Sort example, queue implementation #include <iostream.h> #include <cstdlib.h> #include <ctime.h> using std::cout; // Remove this line for older C++ compilers typedef struct slist_ { int val; […]
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Beginner’s Guide to C++
Introduction Getting Started Hello World Dissecting “Hello World” Directives Namespaces Entry Streams The Language Variables Types Operators Flow Control Functions Classes Pointers An Application Adding Tasks: Files and Vectors Listing […]
Continue ReadingAn Introduction to the Imperative Part of C++
C++: Hostname
Find the name of the host on which the routine is running. #include <stdlib.h> #include <stdio.h> #include <limits.h> #include <unistd.h> int main(void) { char name[_POSIX_HOST_NAME_MAX + 1]; return gethostname(name, sizeof […]
Continue ReadingC++: Happy Numbers
From Wikipedia, the free encyclopedia: A happy number is defined by the following process. Starting with any positive integer, replace the number by the sum of the squares of its […]
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