IPPS - 2

1. Create your own strlen(), strcpy(), strchr() functions as from string class <string.h>  
2. A Program to Check whether a number is Prime or not.
3. Print all the prime numbers from 1 to 1000.
4. Write all the prime numbers from 1 to 1000 in a file named “list_of_PrimeNumbers.txt”   

Decimal To Binary in C

#include <stdio.h>

int main()
{
    int n;
    int i = 0;
    int binary[32];
    int lb;

    printf("Number : ");
    scanf("%d", &n);
   
    while(i<0)
        binary[i++] = 0;
   
    while(n > 0)
    {
        for( i = 0; i<32; i++ )
        {   
            lb = n % 2;
            binary[i] = lb;
            n = n >> 1;
        }
    }
   
    i = 31;
    while(i>=0)
        printf("%d", binary[i--]);
   
    return 0;
}

IPPS - 1 (Introducing Programming Problems Statements)

Hey Guys!

Here are some very easy but little bit tricky Programming Problems.

1. Input a Binary number and output it in Decimal format.
2. Input a number n and calculate its factorial.
   (Factorial: n! = n*(n-1)*(n-1)*(n-2)* ... *2*1 )
   (Bonus: Try for n = 100)
3. Input a sentence and the output must contain how many words does the sentence contain.
   
   Sample
   INPUT
   This sentence has 4 words !!
   Hello World!
   To code is really fun @$hello how are you.
   
   OUTPUT
   4
   2
   9
4. Calculate first n Fibonacci numbers, where n is user input.
   
   Sample
   INPUT
   2
   0
   7
   
   OUTPUT
   0 1
   0 1 1 2 3 5 8
   
   (Bonus: How will you change your approach for large n;  n > 1000)

Choose any language you are familiar with.

HappY Coding!!

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