#include<iostream>
using namespace std;
class C1{
private:
int sum1 = 0;
public:
void inp1(int A[], int s1){
for(int i = 0; i < s1; i++){
sum1 = sum1 + A[i];
}
}
friend class C2;
};
class C2{
private:
int sum2 = 0;
public:
void inp2(int B[], int s2){
for(int i = 0; i < s2; i++){
sum2 = sum2 + B[i];
}
}
void sum(C1 &obj){
int S = obj.sum1;
int res = S + sum2;
cout<<"Summation of two array elements: "<<res<<endl;
}
};
int main()
{
int arr1[] = {2, 3, 4, 5, 6, 7};
int arr2[] = {20, 30, 40};
C1 obj1;
obj1.inp1(arr1, 6);
C2 obj2;
obj2.inp2(arr2, 3);
obj2.sum(obj1);
return 0;
}
Sunday, December 27, 2020
Summation of two array elements by using two different class in OPP(C++)
Saturday, November 28, 2020
Encapsulation implementation in c++ with bank example
#include<iostream>//Encapsulation in OOP with C++ Language
using namespace std;
class bank{//Class Declaration
private:
double balance;//Data Member
public://Access Specifier
void setValue(double b)//Member Function
{
balance = b;
}
void show(){////Member Function
cout<<balance<<endl;
}
};
int main()
{
bank obj;
obj.setValue(1000.50);
obj.show();
return 0;
}
Friday, November 27, 2020
Data abstraction in c++ example with header file abstraction and specifier abstraction
//Data Abstraction Using Access Specifiers #include<iostream> #include<math.h> using namespace std; class abstract{//Class Declaration private://Private Access Specifier int num1, num2;//Data Members public://Public Access Specifier void setValue(int a, int b){//Member Function num1 = a; num2 = b; } void display()//Member Function { cout<<num1<<" "<<num2<<endl; } }; int main()//Main Function { abstract obj;//Object creation obj.setValue(10, 20);//Function Calling obj.display();//Function Calling int res = pow(4, 3); cout<<res<<endl; return 0; }
Monday, November 16, 2020
C programming output checking-05 || Recursion function example with prop...
IT job preparation.
Bank job preparation.
Govt. it job preparation
Output checking of c program.
Recursion function with proper description in c/cpp.
How does the recursion function work?
Recursion in c programming with two parameters.
Sunday, November 15, 2020
C programming output checking-04 || IT job preparation || Infinite Loop ...
Govt. it job preparation
Output checking of a c program.
Running a loop for infinite time when the condition is not true.
C programming output checking-02 || IT job preparation || Floor and ceil...
Output checking of a c program.
Finding floor and ceil value of a negative number in c.
C program to find the floor value of a number.
C program to find the ceil value of a number.
C program output checking for finding floor and ceil value.
C programming output checking-02 || IT job preparation || Function calli...
#best_programming_solution
#it_job_preparation
#output_of_c_program
#Alamgir_Hossain
IT job preparation.
Bank job preparation.
Govt. it job preparation
Output checking of c program.
Calling a function by the call by value.
Situation when the swap function is not working in c/cpp.
C program output checking using the swap function.
C programming output checking-01 || IT job preparation || Programming in...
#best_programming_solution
#it_job_preparation
#output_of_c_program
#Alamgir_Hossain
IT job preparation.
Bank job preparation.
Govt. it job preparation
Output checking of c program
What is the output of the given c program??
Saturday, November 14, 2020
তাওহীদি প্রেরণার অবমাননা -আলমগীর হোসেন
তাওহীদি প্রেরণার অবমাননা
-আলমগীর হোসেন
মানবতার মুক্তির দূত
রাহমাতুল্লিল
আলামিন ।
যার আগমনে
আত্মহারা সব, বিয়োগে স্তব্ধতা
যাকে
উপেক্ষায়
বিশ্ব
মুসলিম হৃদয় রক্তাক্ত, চারিদিকে চঞ্চলতা ।।
ওরা ভুলেছে
নিদারুণ পরিণতি ।
যারা করেছিলো নিন্দা,
দিয়েছিলো গালি
নিকৃষ্টতায় ছিন্নভিন্ন
হয়েছে
ওদের সকল অস্থি, সম্পত্তি
।।
জাগো আবারও মুসলিম
দুনিয়ার মুসলমান ।
রাসুলকে(সাঃ) দিয়েছে
অবজ্ঞা, করেছে অপমান
তুমি এখনও জীবিত
তোমার দেহে প্রাণ, শিরায়
রক্ত বহমান ।।
নহে ব্যাঙ্গ-বিদ্রুপ
ওহে আশরাফুল মাখলুকাত ।
মুশরিক-মুনাফিকে মিলবে না
শান্তি, এহকালে-পরকাল
লানতে ধ্বংস অনিবার্য
এ যে বিধাতার শপথ,
চিরন্তন সত্য ।।
ফিরে এসো ভাই,
ফিরে এসো সব ।
নবীর আদর্শে,যা সুশীতল
ছায়াতল ।
কর-প্রচার, করো প্রসার
আল্লাহ্ মনোনীত যে একমাত্র
সত্য জিবনা-দর্শন তা হলো ইসলাম ।।
মোঃ আলমগীর হোসেন
লেখক, প্রভাষক, কম্পিউটার বিজ্ঞান ও প্রকৌশল বিভাগ,
প্রাইম বিশ্ববিদ্যালয়, বাংলাদেশ ।।
How to change the name of main function in c/cpp programming??
How to change the name of main function in c/cpp programming??
#best programming solution
#interesting programming solution
C programming is the basic building block of programming or building logic. if we want to run or compile a program, we need to write our code under the main function which name is "main". Is there any way to change the name of this main function? The answer is yes, we can change the name of the main function in c/CPP. From this tutorial, you will learn, how to change the name of the main function in c or CPP.
Friday, November 13, 2020
Swapping two numbers using c syntax, function and the concept of class a...
Swapping two numbers by using the third variable.
Swapping two numbers by using function.
Swapping two numbers by using the concept of object oriented programming with cpp/c++
#best programming solution
#interesting programming solution
CPP tutorial, Constructor overloading in object-oriented programming wit...
Constructor overloading in object-oriented programming with cpp/c++
What is an overloading constructor in oop with cpp?
Constructor overloading in cpp/c++.
Constructor overloading with proper example.
#best programming solution,
#interesting programming solution
For all this question answer go to this video.
Wednesday, November 4, 2020
Sunday, October 18, 2020
Addition subtraction using class and object in C++
#include<iostream>
using namespace std;
class addSub{
public:
int num1, num2;
void inPut(){
cout<<"Enter two values: "<<endl;
cin>>num1>>num2;
}
void sum()
{
int s = num1 + num2;
cout<<"Summation is: "<<s<<endl;
}
void sub()
{
int s = num1 - num2;
cout<<"Subtraction is: "<<s<<endl;
}
};
int main()
{
addSub obj;
int n;
cout<<"Press 1 for summation, 2 for subtraction: ";
while(cin>>n){
obj.inPut();
if(n == 1){
obj.sum();
}
else if(n == 2){
obj.sub();
}
}
return 0;
}
Sunday, October 4, 2020
Major parts of a C program with proper example, 52D Batch
/* Author: Alamgir Hossain Date: 5/10/2020 Purpose: to knowing major parts of a c program */// 1. Documentation part/documentation section #include<stdio.h>//2. Linking part/Section //#define x 50 //3. Definition Section #define square(n) n * n #define summation(num1, num2) num1 + num2//Macro int p = 50;//4. Global Declaration Section/Part char ch = 'z'; int multiply(int num1, int num2)//5. sub-program section { int res = num1 * num2; return res; } void prime(){ printf("Welcome to Prime University\n"); } int main()//6. Main program section/part { int x, y, r; x = 100; y = 200; printf("%d\n", x); prime(); r = square(5);//Macro Calling // printf("%d\n", res); printf("%d\n", p); return 0; }
Thursday, September 10, 2020
Function Overloading, operator overloading, function overriding in CPP/C++ || Polymorphism in CPP
Function/Method Overloading in CPP/C++:
#include<bits/stdc++.h>
using namespace std;
class prime{
public:
void sum(int a, int b)
{
printf("%d\n", (a + b));
}
void sum(int a, double b)
{
cout<<(a + b)<<endl;
}
void sum(double a, double b)
{
cout<<(a + b)<<endl;
}
};
int main()
{
prime obj;
obj.sum(10.30, 20.45);
return 0;
}
Operator Overloading in CPP/C++:
#include<iostream>
using namespace std;
int main()
{
string s1, s2, s;
s1 = "Prime ";
s2 = "University";
s = s1 + s2;
cout<<s<<endl;
int num1, num2, num;
num1 = 100;
num2 = 300;
num = num1 + num2;
cout<<num<<endl;
return 0;
}
Method Overriding/Run Time Polymorphism:
#include<iostream>
using namespace std;
class prime{
public:
void display(){
cout<<"Prime, CSE Dept."<<endl;
}
};
class cse : public prime{
public:
void display(){
cout<<"Prime, CSE Dept. from CSE class"<<endl;
}
};
int main()
{
cse obj;
obj.display();
return 0;
}
Monday, September 7, 2020
Different types of macro calling with proper example in C
#include<stdio.h>
#define sum(num1, num2) num1 + num2//Macro Definition
#define multiplication(num1, num2, num3) num1 * num2 * num3
#define maximum(a, b) a>b?a:b
#define square(a) a * a
int main()
{
int res = 64/square(4);
printf("%d\n", res);
return 0;
}
Sunday, September 6, 2020
Input and Output in Structure array with different function || Structure in C Programming || Input and Output in Structure
Program -01
Structure Creation in C programming.
#include<stdio.h>
struct student
{
int id;
char name[100];
double result;
};
int main()
{
struct student std;
scanf("%d", &std.id);
scanf(" %s", &std.name);
scanf(" %lf", &std.result);
printf("%d %s %lf\n", std.id, std.name, std.result);
return 0;
}
Program-02
Input and Output Function for a Structure in C Programming
#include<stdio.h>
struct student{
int id;
char name[100];
double res;
int contact;
};
void input()
{
struct student s[5];
int i;
printf("Enter each student Information one by one: \n");
for(i = 0; i < 2; i++){
scanf("%d %s", &s[i].id, &s[i].name);
scanf("%lf%d", &s[i].res, &s[i].contact);
}
}
void output()
{
struct student s[5];
int i;
for(i = 0; i < 5; i++){
printf("Id: %d ", s[i].id);
printf("Name: %s ", s[i].name);
printf("Result: %lf ", s[i].res);
printf("Contact: %d\n", s[i].contact);
}
}
int main()
{
input();
output();
return 0;
}
Tuesday, September 1, 2020
Some important abbreviation for IT Related Jobs
CODASYL:
Committee/Conference of Data System Language
SNMP:
Simple Network Management Protocol
WCCP: Web
Cash Control Protocol
IPSLA: Internet
Protocol Service Level Agreement
TCP: Transmission
Control Protocol
UDP: User
Datagram Protocol
FTP: File
Transfer Protocol
SMTP:
Simple Mail Transfer Protocol
DNS:
Domain Name System
Thursday, August 27, 2020
C program to find first & second largest number in array
/*
C program to find first & second largest number in array
Array: 3, 10, 80, 20, 5
Max1: 80
Max2: 20
Logic:
1. Input size and elements in array, store it in some variable say size and arr.
2. Declare two variables max1 and max2 to store first and second largest elements.
Store minimum integer value in both i.e. max1 = max2 = INT_MIN.
3. Iterate though all array elements, run a loop from 0 to size - 1.
4. Inside loop, check if arr[i] > max1
max2 = max1
max1 = arr[i]
5. Else if arr[i] > max2 && arr[i] < max1
max2 = arr[i]
*/
#include<stdio.h>
#include <limits.h>
int main()
{
int size, arr[100], i, max1, max2;
scanf("%d", &size);
for(i = 0; i < size; i++){
scanf("%d", &arr[i]);
}
max1 = max2 = INT_MIN;
for(i = 0; i < size; i++){
if(arr[i] > max1){
max2 = max1;
max1 = arr[i];
}
else if(arr[i] > max2 && arr[i] < max1){
max2 = arr[i];
}
}
printf("%d %d\n", max1, max2);
return 0;
}
Video Description: https://www.youtube.com/watch?v=6276kGaKEI4
Wednesday, August 26, 2020
C program to swap two numbers in different ways
/*
Md. Alamgir Hossain
Lecturer, Dept. of CSE, Prime University
*/
//C program to swap two numbers
//Input: a = 10, b = 25
//Output: b = 25, a = 10
#include<stdio.h>
int main()
{
int a, b, temp;
a = 10;
b = 25;
printf("Before swapping: a = %d, b = %d\n",a, b);
/*
temp = a;
a = b;
b = temp;
*/
/*
Using arithmetic operators + and -
a = a + b;
b = a - b;
a = a - b;
*/
/*
Using arithmetic operators * and /
a = a * b;
b = a / b;
a = a / b;
*/
/*
Using bitwise XOR operator ^
a = a ^ b;
b = a ^ b;
a = a ^ b;
*/
//Using bitwise XOR operator ^ in one line
// a ^= b ^= a ^= b;
//Using arithmetic operators + and - in one line
//a = (a + b) - (b = a);
//Using arithmetic operators * and / in one line
//a = (a * b) / (b = a);
printf("After swapping: a = %d, b = %d\n",a, b);
return 0;
}
Monday, August 24, 2020
CPP program to check a number is prime or not using class and object
/*
CPP program to check a number is prime or not using class and object
2, 3, 5, 7, .......
*/
#include<iostream>
using namespace std;
class prime{
private:
int n, isPrime;//Data Members
public:
prime(int num){//Constructor
n = num;
}
void primeCk(){//Prime checking function
isPrime = 1;
if(n <= 1){
isPrime = 0;
}
for(int i = 2; i < n; i++){//10
if(n % i == 0){
isPrime = 0;
break;
}
}
}
void display(){//Display function
if(isPrime == 1){
cout<<"It's Prime"<<endl;
}else{
cout<<"It's Not Prime"<<endl;
}
}
};
int main()
{
prime obj(1);
obj.primeCk();
obj.display();
return 0;
}
CPP program to calculate the Factorial of a number using class and object
/*
Alamgir Hossain
Lecturer, Dept. of CSE, Prime University
CPP program to calculate the Factorial of a number using class and object
5! = 5 * 4 * 3 * 2 * 1 = 120
*/
#include<iostream>
using namespace std;
class factorial{
private:
int num, fact;
public:
factorial(int n){//Constructor
num = n;
}
void factorialCalculate(){//Function for calculating factorial
fact = 1;
for(int i = num; i >= 1; i--){
fact = fact * i;
}
}
void display()
{
cout<<"Factorial of: "<<num<<" is: "<<fact<<endl;
}
};
int main()
{
factorial obj(7);
obj.factorialCalculate();
obj.display();
return 0;
}
C program to find maximum and minimum element in an array
/*
Alamgir Hossain
Lecturer, Dept. of CSE, Prime University.
C program to find maximum and minimum element in array.
Example: 20, 17, 10, 5, 50
Max: 50
Min: 5
Logic:
1. Input size and element in array, store it in some variable say size and arr.
2. Declare max and min to store maximum and minimum element.
Assume first array element as maximum and minimum both,
so, max = arr[0] and min = arr[0].
3. Run loop from first to last array element i.e. 0 to size - 1
4. Inside loop check each array elements,
if (arr[i] > max), then update max = arr[i];
if (arr[i] < min), then update min = arr[i];
*/
#include<stdio.h>
int main()
{
int size, arr[100], max, min, i;
printf("Enter the size of the array: ");
scanf("%d", &size);
printf("Enter the elements of the array: ");
for(i = 0; i < size; i++){
scanf("%d", &arr[i]);
}
max = min = arr[0];
for(i = 0; i < size; i++){
if(max < arr[i]){
max = arr[i];
}
if(min > arr[i]){
min = arr[i];
}
}
printf("Maximum is : %d\n", max);
printf("Minimum is: %d\n", min);
return 0;
}
C program to count even and odd elements in an array
/*
Alamgir Hossain
Lecturer, Dept. of CSE, Prime University.
C program to count even and odd elements in an array.
Array: 20, 12, 13, 50, 17
Even: 3
Odd: 2
*/
#include<stdio.h>
int main()
{
int size, arr[100], i, even, odd;
printf("Enter the size of the array: ");
scanf("%d", &size);
printf("Enter the elements of the array: ");
for(i = 0; i < size; i++){
scanf("%d", &arr[i]);
}
even = 0;
odd = 0;
for(i = 0; i < size; i++){
if(arr[i] % 2 == 0){
even = even + 1;
}
if(arr[i] % 2 != 0){
odd = odd + 1;
}
}
printf("Total even elements: %d\n", even);
printf("Total odd elements: %d\n", odd);
return 0;
}
Saturday, August 22, 2020
Major Parts of a C program with proper example
01. Documentation Section:
Name: Alamgir Hossain
Date: 23/08/2020
For knowing about major parts.
*/
#include<stdio.h>//02. Linking Section/Part
#include<math.h>
#include<string.h>
#define abb 3.5670 //03. Definition Part
int x = 5;//04. Global Declaration Part
int y = 10;
char ch = 'c';
int main()//05. Main program section
{
int p =10;///Local Declaration
prime();
printf("%d\n", x);
return 0;
}
void prime()//06. Sub-Program Section
{
//printf("%d\n", p);
int w = 200;
printf("%d\n", x);
printf("Welcome to Prime University\n");
}
Friday, August 21, 2020
Parameterized constructor in cpp/c++
#include<iostream>
using namespace std;
class prime{
public:
int id; //Data Member
string name; //Data Member
prime(int value, string s_name){//Parameterized Constructor
id = value;
name = s_name;
}
void display(){
cout<<"Id is: "<<id<<endl;
cout<<"Name is: "<<name<<endl;
}
};
int main()
{
int num;
string name;
cin>>num;
cin>>name;
// prime obj(120, "Bangladesh");
prime obj = prime(num, name);
obj.display();
return 0;
}
Youtube video link: https://www.youtube.com/watch?v=fEnIx3lbXO4&list=UUkE_J-tXiqxzASO6nlB8D6w&index=2
Default constructor with proper example in cpp in bangla
#include<iostream>
using namespace std;
class prime{
public:
int id; //Data Members
string name; //Data Members
prime(){//Default Constructor
id = 12345;
name ="Bangladesh";
}
void display()//Output Function
{
cout<<id<<endl;
cout<<name<<endl;
}
};
int main()
{
prime obj;
obj.display();
return 0;
}
Tuesday, August 18, 2020
Monday, August 17, 2020
Sunday, August 16, 2020
Monday, August 10, 2020
Saturday, August 8, 2020
Friday, July 24, 2020
Tuesday, July 14, 2020
Friday, July 10, 2020
Sunday, May 3, 2020
Friday, March 13, 2020
Algorithm or Pseudocode and time complexity analysis for calculating maximum and minimum value from an array using divide and conqure method
Algorithm for calculating max and min value from an
array:
Algorithm
maxmin(int low, int high, int max, int min)
//low, high are used as index
//max, min are used as max & min value
{
if(low == high) then
min: = arr[low];
max: = arr[high];
else if((high -1 ) == low) then
if(arr[low] < arr[high]) then
max: = arr[high];
min: = arr[low];
else
min: = arr[high];
max: = arr[low];
else
mid: = (low + high)/2;
maxmin(low, mid, max, min);
maxmin(mid+1, high, max1, min1);
if(max < max1) then
max: = max1;
if (min>min1) then
min: = min1;
}
Total time required for finding max and min value
using divide and Conquer method:
So,
in the
asymptotic notation the time complexity of this algorithm is represented by O(n).