Print Prime Number

//prime number

#include<stdio.h>
int main(){
int n,i,j;
printf("Please Enter a Number:\t");
scanf("%d",&n);

for(i=1;i<=n;i++){
for(j=2;j<=i;j++){
if(i%j==0){
break;
}
}
if(i==j){
printf("%d\t",i);
}
}
return 0;
}

Output:

Leap Year count in C Programming

//Leap Year count in C Programming

#include <stdio.h>

int main()
{
  int year;

  printf("Enter a year to check if it is a leap year:");
  scanf("%d", &year);

  if ( year%400 == 0)
    printf("%d is a leap year.", year);
  else if ( year%100 == 0)
    printf("%d is not a leap year.", year);
  else if ( year%4 == 0 )
    printf("%d is a leap year.", year);
  else
    printf("%d is not a leap year.", year);

  return 0;
}


Result :

A simple Calculator with C Programming

// Developed By Muhammad Rakib Hasan
// A simple Calculator with C Programming

#include<stdio.h>
int add(int num1,int num2);
float division(int num1,int num2);
int multiplication(int num1,int num2);
int substruction(int num1,int num2);

int main()
{
int a,b,output,subs;
float div,multi;
char ch;
printf("Please Enter +,-,* or / :");
scanf("%c",&ch);


if(ch=='+'){
printf("Please Enter First Number:");
scanf("%d",&a);
printf("Please Enter Second Number:");
scanf("%d",&b);
output=add(a,b);

printf("The sum of %d and %d is : %d\n",a,b,output);
}
else if(ch=='-'){
printf("Please Enter First Number:");
scanf("%d",&a);
printf("Please Enter Second Number:");
scanf("%d",&b);
subs=substruction(a,b);

printf("The substruction Value of %d and %d is: %d",a,b,subs);
}

else if(ch=='*'){
printf("Please Enter First Number:");
scanf("%d",&a);
printf("Please Enter Second Number:");
scanf("%d",&b);
multi=multiplication(a,b);
printf("The Multiplication Value of %d and %d is : %f",a,b,multi);
}
else if(ch=='/'){
printf("Please Enter First Number:");
scanf("%d",&a);
printf("Please Enter Second Number:");
scanf("%d",&b);
div=division(a,b);
printf("The Division Value of %d and %d is: %f",a,b,div);
}
else{
printf("Invalid input");
}
return 0;
}

int add(int a,int b){
int sum;
sum=a+b;
return sum;
}
int substruction(int a,int b){
int subs;
subs=a-b;
return subs;
}

int multiplication(int a,int b){
int multi;
multi=a*b;
return multi;
}
float division(int a,int b){
float div;
div=(float)a/b;
return div;

}

Result :

Finding Factorial in C program

// Finding Factorial in C program

#include <stdio.h>

int main(){
  int i, j, k = 1;

  printf("Enter a number to calculate it's factorial:");
  scanf("%d", &j);
   for (i = 1; i <= j; i++){
      k = k * i;
  }
   printf("Factorial of %d ! = %d", j, k);

  return 0;
}

Output :

Simple calculator using switch...case statement in C programming.

// Simple calculator using switch...case statement in C programming.

# include <stdio.h>
int main()
{
    char o;
    float a,b;
 
     printf("Enter operator either + or - or * or divide : ");
    scanf("%c",&o);
   
    printf("Enter First Value: ");
    scanf("%f",&a);
   
     printf("Enter Second  Value: ");
    scanf("%f",&b);
    switch(o) {
        case '+':
            printf("%.1f + %.1f = %.1f",a, b, a+b);
            break;
        case '-':
            printf("%.1f - %.1f = %.1f",a, b, a-b);
            break;
        case '*':
            printf("%.1f * %.1f = %.1f",a, b, a*b);
            break;
        case '/':
            printf("%.1f / %.1f = %.1f",a, b, a/b);
            break;
        default:
            printf("Error! operator is not correct");
            break;
    }
    return 0;
}

Output :

Finding Prime numbers with c programming

//Finding Prime numbers

#include<stdio.h>

int main(){
   int n, i = 3, count, c;
   printf("Enter the number of prime numbers required:");
   scanf("%d",&n);

   if ( n >= 1 )   {
      printf("First %d prime numbers are :\n",n);
   }
   for ( count = 2 ; count <= n ;  ){
      for ( c = 2 ; c <= i - 1 ; c++ ){
         if ( i%c == 0 )
            break;
      }
      if ( c == i ){
         printf("%d,",i);
         count++;
      }
      i++;
   }
    return 0;
}

Result :

Find LCM of two positive integers with c Programming

//Find LCM of two positive integers with c Programming

#include <stdio.h>
int main()
{
  int i, j, k;
  printf("Enter First positive integers: ");
  scanf("%d", &i);
   printf("Enter First positive integers: ");
  scanf("%d", &j);
  k=(i>j) ? i : j;
  while(1)                  
  {
      if(k%i==0 && k%j==0)
      {
          printf("LCM of %d and %d is : %d", i, j,k);
          break;      
      }
      ++k;
  }
  return 0;
}

Result :

Find Highest Common Factor with C Program .

//greatest common divisor
//Highest Common Factor

//  Find Highest Common Factor with C Program .
#include<stdio.h>

int main(){
int i,j,k,gcd;
printf("Please Enter First Number:");
scanf("%d",&j);
printf("Please Enter Second Number:");
scanf("%d",&k);

for(i=1;i<=j||i<=k;++i){
if(j%i==0&&k%i==0){
gcd=i;
}
}
printf("\nThe greatest common divisor of %d and %d is : %d\n",j,k,gcd);
return 0;
}

Result :

Ascending Number Print with C Programming

//Developed By Muhammad Rakib Hasn

#include<stdio.h>

int main(){
    int i,j,rows;
    printf("Please Enter the Number of Rows:");
    scanf("%d",&rows);

    for(i=1;i<=rows;++i){
        for(j=1;j<=i;++j){
        printf("%d  ",j);
        }
        printf("\n");
    }
return 0;
}

Result :

Descending Decimal Number

//Developed by Muhammad Rakib
//Descending decimal number
#include<stdio.h>

int main(){
    int i,j,rows;
    printf("Please Enter the Number of Rows:");
    scanf("%d",&rows);

    for(i=rows;i>=1;--i){
        for(j=1;j<=i;++j){
        printf("%d  ",j);
        }
        printf("\n");
    }
return 0;
}

Result:

Print Descending Star using C Programming.

//Developed by Muhammad Rakib Hasan

//print descending star 

#include<stdio.h>

int main(){

    int i,j,rows;

    printf("Please Enter the Number of Rows:");

    scanf("%d",&rows);

    for(i=rows;i>=1;--i){

        for(j=1;j<=i;++j){

        printf("*   ");

        }

        printf("\n");

    }

return 0;

}

Result :

Star print

//Developed By Muhammad Rakib Hasan 2279
//Star print

#include <stdio.h>

int main()
{
    int a,b,c;
     printf("Enter number of rows:");
    scanf("%d",&a);
     for (b=1;b<=a;b++ )
    {
        for(c=1;c<=b;c++ ){

            printf("*");
}
        printf("\n");
    }
     return 0;
}

Result:

Addition value of Even numbers in given range

//Developed By Muhammad Rakib Hasan 2279
//Addition value of Even numbers in given range

#include<stdio.h>

int main(){

int s,e,sum=0;

printf("Enter a starting value: ");
scanf("%d",&s);
printf("Enter a ending value: ");
scanf("%d",&e);

printf("Addition value of Even numbers in given range are: \n\n");
for(s;s<e;s++){
if(s%2==0){
sum=sum+s;
}
}
printf("%d",sum);


return 0;
}


Result :

Lower And Upper Case

//Developed By Muhammad Rakib Hasan 2279
//Lower And Upper Case


#include<stdio.h>

int main(){

char a;
printf("Please Enter a Case :");
scanf("%c",&a);

if(a>='A'&& a<='Z'){
printf("%c is Upper case. ",a);
}
else if(a>='a'&& a<='z'){
printf("%c is Lower case. ",a);
}
else{
printf("Please Enter a Valid input ! ");
}
return 0;
}

Result :

Mark Sheet Using C Language

//Developed By Muhammad Rakib Hasan 2279
//Mark sheet


#include<stdio.h>

int main(){
int marks;
printf("Enter A Valied Marks: ");
scanf("%d",&marks);

if(marks>=80&&marks<=100){
printf("Your Grade Point Is A+");
}

else if(marks>=70&&marks<=79){
printf("Your Grade Point Is A");
}

else if(marks>=60&&marks<=69){
printf("Your Grade Point Is A-");
}
else if(marks>=50&&marks<=59){
printf("Your Grade Point Is B");
}
else if(marks>=40&&marks<=49){
printf("Your Grade Point Is C");
}
else if(marks>100){
printf("Please Enter Between 0-100, Valid Marks");
}
else{
printf("Your Grade is F");
}
}

Result:

Odd and Even Number identify using and operator

//Developed by Muhammad Rakib Hasan
//Odd and Even Number identify using and operator

#include <stdio.h>

int main()
{
   int number;

   printf("Enter an integer:    ");
   scanf("%d", &number);

   if (number & 1 == 1)
      printf("%d is Odd Number",number);
   else
      printf("%d is Even Number",number);

   return 0;
}

Result :

Age Calculation using if else if statement

Please write down a code where you can input your "age" if your age is between (0 to14) then show "You are a child" if your age is between (15 to 35) then show "You are a young" if your age is between then (36 to 50) then show "You are a middle aged" if your age is greater then 50 then show "You are a old".

Assalamolalikum dear Mentor and friends,

Now i want to share you a concept on this problem in C Programming ..

01.Firstly i have to need one variable declaration (int age;).

02.After variable declaration ,i need the code by which can i input a starting and a ending value (printf("Please Enter you Age : ");

scanf("%d", &age);)

03.Then it is necessary to me the logic implementation "(if(age>=0 && age<=14){

printf("You are a child");

}")

one by one this logic are applied .......

04.Finally show the output result ..

Here the code and Screenshot

Solution of Above problem :

//Developed By Muhammad Rakib Hasan

// Age Calculation using if else if

#include <stdio.h>

int main(){

      int age;

      printf("Please Enter you Age : ");

      scanf("%d", &age);

      if(age>=0 && age<=14){

         printf("You are a child");

      }

    else if(age>=15 && age<=35){

        printf("You are a young");

    }

    else if(age>=36 && age<=50){

        printf("You are a middle aged");

    }

    else{

        printf("You are old");

    }

      return 0;

}

Result:

Find largest number using if...else statement with and Operator

//Developed By Muhammad Rakib Hasan
// Find largest number using  if...else statement with and operator

#include <stdio.h>
int main(){
      int a, b, c;
      printf("Enter the First Number : ");
      scanf("%d", &a);
       printf("Enter the second Number : ");
      scanf("%d", &b);
       printf("Enter The Third Number : ");
      scanf("%d", &c);
      if(a>=b && a>=c)
         printf("Largest number is: %d", a);
      else if(b>=a && b>=c)
         printf("Largest number is: %d", b);
      else
         printf("Largest number is: %d", c);
      return 0;
}

Result :

Find largest number using if..else statement in C programming

//Developed By Muhammad Rakib Hasan
// Find largest number using if..else statement in C programming

#include <stdio.h>
int main(){
      int a, b, c;
      printf("Enter the First Number : ");
      scanf("%d", &a);
       printf("Enter the second Number : ");
      scanf("%d", &b);
       printf("Enter The Third Number : ");
      scanf("%d", &c);
      if (a>=b)
      {
          if(a>=c)
            printf("Largest number is: %d",a);
          else
            printf("Largest number is: %d",c);
      }
      else
      {
          if(b>=c)
            printf("Largest number is: %d",b);
          else
            printf("Largest number is: %d",c);
      }
      return 0;
}

Result :

Find largest number using if statement only in C Programming

//Developed By Muhammad Rakib Hasan
//Find largest number using if statement only in C Programming

#include <stdio.h>
int main(){
      int a, b, c;
      printf("Enter the First Number : ");
      scanf("%d", &a);
       printf("Enter the second Number : ");
      scanf("%d", &b);
       printf("Enter The Third Number : ");
      scanf("%d", &c);
      if(a>=b && a>=c)
         printf("Largest number : %d", a);
      if(b>=a && b>=c)
         printf("Largest number : %d", b);
      if(c>=a && c>=b)
         printf("Largest number is : %d", c);
      return 0;
}

Result :

Even and Odd separation By C Programming

/*Now i want to share you a concept how to find odd and even number which you have input as a starting and ending value in C Programming ..

01.Firstly i have to need  three integer variable declaration (int minimum,maximum,input_number;).
02.After variable declaration ,i need the code by which can i input a starting and a ending value (printf("Enter Your Starting Number: ");
    scanf("%d",&minimum);
    printf("Enter Your Ending Number: ");
    scanf("%d",&maximum);)
03.Then it is necessary to me the logic implementation "(for(input_number=minimum;input_number<=maximum;input_number++)")
04.After logic implementation it have to need another condition by which the program compare this to  input range which one is even(" if(input_number%2==0)") and which is odd("if(input_number%2!=0)"). 
05.Finally show the output result ..

Here the code and Screenshot  

*/



//Developed By Muhammad Rakib Hasan.
//Even and Odd separation By C Programming

#include<stdio.h>
int main(){

    int minimum,maximum,input_number;

    printf("Enter Your Starting Number: ");
    scanf("%d",&minimum);
    printf("Enter Your Ending Number: ");
    scanf("%d",&maximum);

    printf("Even Number of Given Range %d to %d is :",minimum,maximum);
    for(input_number=minimum;input_number<=maximum;input_number++)
        if(input_number%2==0)
            printf("\t%d",input_number);

    printf("\n\nOdd Number of Given Range %d to %d is :",minimum,maximum);
    for(input_number=minimum;input_number<=maximum;input_number++)
        if(input_number%2!=0)
            printf("\t%d",input_number);

    return 0;
}

Evaluate Large Number among three input value Using And Operator .

//Developed By 2279 Muhammad Rakib Hasan.
//CTST2354
//Evaluate Large Number among three input value using and operator

#include<stdio.h>
int main(){
int a,b,c;

printf("Enter The 3 Value:");
scanf("%d%d%d",&a,&b,&c);
if(a>b&&a>c){
printf("%d Is Gratter Number",a);
}
if(b>c&&b>a){
printf("%d Is Gratter Number",b);
}
else{
printf("%d Is Gratter Number",c);
}

return 0;
}

Result:

Evaluate Large Number Among Three Input Value

//Developed By 2279 Muhammad Rakib Hasan.
//CTST2354
//Evaluate Large Number among three input value

#include<stdio.h>
int main(){
int a,b,c;

printf("Enter The 3 Value:");
scanf("%d%d%d",&a,&b,&c);
if(a>b){
if(a>c){
printf("%d is Largest Number",a);
}
else{
printf("%d is Largest Number",c);
}
}
else{
if(b>c){
printf("%d Is Largest Number",b);
}
else{
printf("%d is Largest Number",c);
}
}


return 0;
}

Result :

Evaluate Leap Year with C Programming

//Developed By 2279 Muhammad Rakib Hasan.
//CTST2354
//Evaluate Leap Year with C Programming

#include<stdio.h>
int main(){
int year;
printf("Please Enter A Valid Year:");
scanf("%d",&year);


if(year%4==0){
printf("%d is a Leap Year.",year);
}
else{
printf("%d Is Not a Leap Year.",year);
}

return 0;
}

Result :

Evaluate Odd & Even with C Programming ..

//Developed By 2279 Muhammad Rakib Hasan.
//CTST2354
//Calculate the Odd And Even Number

#include<stdio.h>

int main(){
int a;

printf("\t\t\n\nEnter a Value of A: ");
scanf("%d",&a);
if (a%2!=1){

printf("A is Even Number !");
}
else{

printf("A is Odd Number !");
    }
return 0;


printf(".....................End......................\n\n\n\n\n\n\n\n");
}

 Result :

Evaluate IF Else Condition with case ..

//Developed By 2279 Muhammad Rakib Hasan.
//CTST2354
//Evaluate IF Else Condition

#include<stdio.h>

int main(){
char rain_status;

printf("\n\n\n Please Enter Present Rain Status,Where Y is for Rain And N for not :",rain_status);
scanf("%c",&rain_status);

if(rain_status=='y'){
printf("\n\n\n You Have to Open Your Umbrella \n\n\n\n");
}
else if(rain_status=='n'){
printf("\n\n\n You Have Not Open Your Umbrella \n\n\n\n");
}
else{
printf("\n\n\n Please Enter valid Case");
}


printf("\n\n\n\n\n\n\n\n.................End.....................\n\n\n\n\n\n\n\n");

return 0;
}

Result :

Evaluate IF Else Condition with real life Example ...

//Developed By 2279 Muhammad Rakib Hasan.
//CTST2354
//Evaluate IF Else Condition

#include<stdio.h>

int main(){
int rain_status;

printf("Please Enter Present Rain Status(Where 1 is for Rain And Other is not ):%d",rain_status);
scanf("%d",&rain_status);

if(rain_status==1){
printf("You Have to Open Your Umbrella \n\n\n\n");
}
else{
printf("You Have Not Open Your Umbrella \n\n\n\n");
}


printf("\n\n\n\n\n\n\n\n.................End.....................");
}

Result :

Area And Circumference in a Circle with C Programming

//2279 Muhammad Rakib Hasan.
//CTST2354

#include<stdio.h>

int main(){

float radious,area,circumference,pi;
pi=3.141593;

printf(" \nPlease Enter The circle Radious : ");
scanf("%f",&radious);

area=pi*radious*radious;

circumference=2*pi*radious;

printf(" \nThe Area of The Circle is : %f\n",area);
printf(" \nThe Circumference of The Circle is : %f\n\n\n\n\n",circumference);


printf("......................End.....................\n\n\n\n\n");

return 0;
}



Result :

How to solve the desire loan in C reprogramming ..

#include<stdio.h>

int main(){
    float bank_loan,interest_amount,interest,total_paid;

    printf("\n      Enter the Loan amount : ");
    scanf("%f",&bank_loan);
  
     printf("\n      Enter the Interest amount : ");
    scanf("%f",&interest_amount);
  
    interest=bank_loan*interest_amount/100;

    total_paid=bank_loan+interest;

    printf("\n      Total interest for bank Loan %f\n",interest);
    printf("\n      Total Paid to bank with interest %f\n\n",total_paid);

    printf("..............................................\n\n\n");

    return 0;
    }

Out put ...............