Syndicating Pyramid print with C language

#include<stdio.h>

int main(){

int n,i,j,k;

printf("Please Enter a Integer Number:\t");
scanf("%d",&n);

for(i=n;i>=1;i--){
for(k=i;k<=n-1;k++){
printf(" ");
}
for(j=1;j<=i;j++){
printf(" *");
}
printf("\n");
}
return 0;
}

output :

Pyramid in C Language

#include<stdio.h>

int main(){

int n,i,j,k;

printf("Please Enter a Integer Number:\t");
scanf("%d",&n);

for(i=1;i<=n;i++){
for(k=i;k<=n-1;k++){
printf(" ");
}
for(j=1;j<=i;j++){
printf(" *");
}
printf("\n");
}
return 0;
}

Output:

Fibonacci Series with C Programming

// Fibonacci Series in C Programming
#include<stdio.h>

int main(){
   int n,i, a = 0, b = 1, fib;

   printf("Enter the number of terms:");
   scanf("%d",&n);

   printf("First %d Number of Fibonacci series are :\t",n);

   for ( i = 0 ; i < n ; i++ ){
      if ( i <= 1 )
         fib = i;
      else{
         fib = a + b;
         a = b;
         b = fib;
      }
      printf("%d\t",fib);
   }

   return 0;
}

Output 

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 :