Basic C Program

Hello Program

#include <stdio.h>
#include <stdio.h>

int main()
{
    printf("Hello!,\nWelcome To crackcoderrank\n");
    return 0;
}                                                                                                           Run Code

Output :

Sum Of  Two Numbers

#include <stdio.h>

int main() {
 int num1,num2,sum=0;
 printf("Enter the first Number: \n");
 scanf("%d",&num1);
 printf("Enter the second Number: \n");
 scanf("%d",&num2);
 sum=num1+num2;
 printf("Sum of the two Numbers is: %d",sum);
 return 0;
}                                                                                                                          RunCode

Output :

Swap Of  Two Numbers

#include<stdio.h>
int main()
{
    int a;
    int b;
    int c;
    
    printf("Type value of A : ");
    scanf("%i",&a);
    printf("\nType value of b : ");
    scanf("%i",&b);
    c=a;
    a=b;
    b=c;
    printf("A : %i",a);
    printf("\nb : %i",b);
    return 0;
}                                                                                                                                                                     Run Code

Output :

Swap Of  Two Numbers Using Of XOR

#include<stdio.h>

int main()
{ 
    int a;
    int b;
    printf("Type value of A : ");
    scanf("%i",&a);
    printf("\nType value of b : ");
    scanf("%i",&b);
    a ^= b;
    b ^= a;
    a ^= b;
    printf("\nA : %i",a);
    printf("\nB : %i",b);
    return 0;
}                                                                                                                        Run Code 

Output :

Swap Of  Two Numbers Without Third Variable

#include<stdio.h>

int main()
{
    int a;
    int b;
    printf("Type value of A : ");
    scanf("%i",&a);
    printf("\nType value of b : ");
    scanf("%i",&b);
    a = a + b;
    b = a - b;
    a = a - b ;
    printf("A : %i",a);
    printf("\nB : %i",b);
    return 0;
}                                                                                                                         Run Code

Output :

Even Number

#include<stdio.h>

void main(){
    int num;
    printf("Enter any number: ");
    scanf("%d",&num);
    if(num%2==0)
    {
        printf("is Even");
    }
}                                                                         Run Code                                                                                                                                                                                                                         

Outpu :

Odd Number

#include<stdio.h>

void main()
{
    int num;
    printf("Enter any number: ");
    scanf("%d",&num);
    if(num%2!=0)
    {
        printf("is Odd");
    }
}                                                                                                                                                            Odd NumberL

Output :

Write the program to print the Even Or Odd
Input :
16

#include<stdio.h>

void main()
{
    int num;
    printf("Enter any number: ");
    scanf("%d",&num);
    if(num%2==0)
    {
        printf("is Even");
    }
    else
    {
        printf("is Odd");
    }
}                                                                                                                                  Run Code

 Output :

Enter any number: is Even

Convert the number decimal to hexa?
Input :
16

#include <stdio.h>

int main(){ 
        int num=65;
        int i=0,base,r,sum=0;
        while(num!=0)        {
                r=num%16;
                num/=16;
                base=pow(100,i);
                sum+=base*r;
                i++;
        }
        if(sum<10){
            r+=48;
            sum=sum+base*r;
        }
        else{
            r+=55;
            sum+=base*r;
        }
        printf("%d",sum);
}                                                                                                                                 Run Code

 Output:

    6301

Convert the number decimal to binary?
Intput:
    16

#include <stdio.h>

int main()
{ 
    int num;
    scanf("%d",&num);
    int i=0,base,r,sum=0;
    while(num!=0){
        r=num%2;
        num/=2;
        base=pow(10,i);
        sum+=base*r;
        i++;
    }
    printf("%d",sum);
    return 0;
}                                                                                                                             Run Code    

 Output:
    10000

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