To Print A statement without Using Semicolon

#include<stdio.h>
#include<conio.h>
void main()
{
    if(printf("Hello world"))
    {
    }
    getche();
}

To print Floyd’s triangle in C language

void main()
{

  int i,j,num;
  int k=1;

  printf("Enter the value of range ==  ");
  scanf("%d",&num);

  printf("FLOYD's Triangle\n");
  for(i=1;i<=num;i++)
  {
      for(j=1;j<=i;j++,k++)
      {
           printf(" %d",k);
      }
      printf("\n");
  }

  getche();
}

Print Composite Numbers in C

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


void composite(int x);
void main()
{
     int a;
    printf("how much composite number you want to generate = ");
    scanf("%d",&a);
    composite(a);
    getche();
}


void composite(int x)
{
      int counter=0,number=0,i=1,j;
      while(number<x)
    {

  counter=0;
  for(j=1;j<=i;j++)
 {
if(i%j==0)
counter++;
         }
if(counter>2)
{
printf("%d ",i);
number++;
}
         i++;
    }
}

Find The Largest Number Among Three

#include<stdio.h>
#include<conio.h>
void main()

{
  int a,b,c,large;

  printf("\nEnter 3 numbers:");
  scanf("%d %d %d",&a,&b,&c);

  large=(a>b&&a>c?a:b>c?b:c);
  printf("\nThe biggest number is: %d",large);

getche();
}

Find Power of A Number in C

#include<stdio.h>
#include<conio.h>
void main()

{
  int pow,num,i=1;
  unsigned  long int sum=1;

  printf("\nEnter your number == ");
  scanf("%d",&num);

  printf("\nEnter the desired power ==");
  scanf("%d",&pow);

  while(i<=pow)
  {
      sum=sum*num;
      i++;
  }

  printf("\n%d to the power %d is: %ld",num,pow,sum);
  getche();
}

String Catenation Without Using Strcat Function in C

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

void stringconcatenation(char[],char[]);

void main()
{

    char str1[100],str2[100];
    int compare;

    printf("Enter the first string: ");
   gets(str1);

    printf("Enter the second string: ");
    gets(str2);

    stringconcatenation(str1,str2);

    printf(" The String after concatenation: %s",str1);

    getch();

}

void stringconcatenation(char str1[],char str2[])
{
    int i=0,j=0;
  
  
    while(str1[i]!='\0')
    {
         i++;
    }

    while(str2[j]!='\0')
    {
         str1[i] = str2[j];  
         i++;
         j++;
    }

    str1[i] ='\0';
}

Fibonaaci Series in C

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


int main(void)
{
    int n,a=0,b=1,c=0,i=1;
    printf("How Mnay First Fibonacci Numbers you Want To Generate?\t\t");
    scanf("%d",&n);
    printf("%d %d",a,b);
    while(i<=n-2)
    {
        c=a+b;

        printf("%d",c);

        a=b;

        b=c;
       
         i++;
    }


getch();
return 0;
}