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selection sort algorithm in data structure

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Algorithm: Step 1: Select 1St element of the list. Step 2: Compare selected elements with other elements in the list one by one. Step 3: For every comparison, if any element is smaller then selected element then these two are swapped. Step 4: Repeat the same procedure with next position in the list till the … Read more

Predict the output of following C++ program in cpp

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 Hello friends, Welcome to your Techgsr.co blog. And today in this article we will learn about  Predict the output of following C++ program in cpp .So let’s go to our topic

#include<iostream>
using namespace std;
class Test
{
static int i;
int j;
};
int Test::i;
int main()
{
cout << sizeof(Test);
return 0;
}

Assume that integers take 4 bytes.

Output:
4 (size of integer)
static data members do not contribute in size of an object. So ‘i’ is not considered in size
of Test. Also, all functions (static and non-static both) do not contribute in size.

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how to write nested loop in cpp

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Hello friends, Welcome to your Techgsr.co blog. And today in this article we will learn about  how to write nested loop in cpp.So let’s go to our topic #include <iostream> using namespace std; int main () { // local variable declaration: int a = 100; int b = 200; // check the boolean condition if( a … Read more

how to use namespaces be nested in C++?Write the program.

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Hello friends, Welcome to your Techgsr.co blog. And today in this article we will learn about how to use namespaces be nested in C++?Write the program. So let’s go to our topic #include <iostream> int x = 20; namespace outer { int x = 10; namespace inner { int z = x; // this x refers … Read more

how to write program to demonstrate Binary Search Algorithms in C++

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Hello friends, Welcome to your Techgsr.co blog. And today in this article we will learn about how to write program to demonstrate Binary Search Algorithms in C++ .So let’s go to our topic #include <algorithm> using namespace std; void show(int a[]) { for(int i = 0; i < 10; ++i) cout << ‘\t’ << a[i]; } … Read more

how to write a program in c++ to show constructor

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Hello friends, Welcome to your Techgsr.co blog. And today in this article we will learn about how to write a program in c++ to show constructor  .So let’s go to our topic #include<iostream> using namespace std; class Point { private: int x, y; public: /***Constructor****/ Point(int x1, int y1) { x = x1; y = y1; … Read more

A simple and complete C++ program to demonstrate global friend

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  #include <iostream> class A { int a; public: A() {a = 0;} friend void showA(A&); // global friend function }; void showA(A& x) { // Since showA() is a friend, it can access // private members of A std::cout << “A::a=” << x.a; } int main() { A a; showA(a); return 0; }   … Read more