C Programming Tchniques & Tips

Binary to Decimal Conversion in C or C Program for Binary to Decimal Number? #include<stdio.h> #include<conio.h> void main() {         long int b_n,d_n=0,j=1,rem;     clrscr();     printf("Enter a binary number: ");     scanf("%ld",&b_n);     while(b_n!=0)    {         rem=b_n%10;                    d_n=d_n+rem*j;         j=j*2;         b_n=b_n/10;     }     printf("Equivalent decimal Number : %ld",d_n);     getch(); } Output: Enter a Binary Number : 101 Equivalent Decimal Number : 5

Write a C Program to check whether the given number is Strong Number or not? A number is called Strong Number if sum of the factorial of its digit is equal to number itself. ie 145 1! + 4! + 5! => 1 + 24 + 120 => 145 #include<stdio.h> #include<conio.h> void main() {   int num,i,f,r,sum,temp;   int min,max;   printf("Enter minimum range: ");   scanf("%d",&min);   printf("Enter maximum range: ");   scanf("%d",&max);   printf("Strong numbers in given range are: ");   for(num=min; num <= max; num++){       temp = num;       sum=0;       while(temp)      {            i=1;            f=1;            r=temp%10;        ...

Definition of an Armstrong number Armstrong number is a number in which sum of its digits to power of number of its digits is equal to that number are known as Armstrong numbers. Example: let the Number is 153 Total digits in 153 is 3 And 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153 Armstrong Number in C, C Program for Amstrong Number upto a limit: #include <stdio.h> #include <conio.h> void main() {     int num,rem,sum,temp;                       clrscr();     for (num=1;num<=500;num++)     {          temp=num;          sum = 0;          while (temp!=0)          {              ...