/* Factorial of a number using recursive function */
#include<stdio.h>
#include<conio.h>
int fact(int);
void main()
{
int num;
printf("Enter A Number:");
scanf("%d",&num);
printf("\n%d!=%d",num,fact(num));
getch();
}
fact(int num)
{
if(num<1)
{
return 1;
}
else
{
return (num*fact(num-1));
}
}
/* Factorial of a number using for loop */
#include<stdio.h>
#include<conio.h>
void main()
{
int num,i,fact=1;
printf("Enter a Number:");
scanf("%d",&num);
for(i=1;i<=num;i++)
{
fact=fact*i;
}
printf("%d!=%d",num,fact);
}
/* Matrix subtraction */
#include<stdio.h>
#include<conio.h>
void main()
{
int mat1[3][3],mat2[3][3],sub[3][3],i,j;
printf("Enter the elements of first matrix:\n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&mat1[i][j]);
}
}
printf("Enter the elements of second matrix:\n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
scanf("%d",&mat2[i][j]);
}
}
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
sub[i][j]=mat1[i][j]-mat2[i][j];
}
}
printf("The Sum Of Matrices Is:\n");
for(i=0;i<=2;i++)
{
for(j=0;j<=2;j++)
{
printf("\t%d",sub[i][j]);
}
printf("\n");
}
}
/* WAP to concate strings */
#include<stdio.h>
#include<conio.h>
void main()
{
char str1[100],str2[100],str[100];
int i=0,j=0;
printf("Enter First String:");
gets(str1);
printf("Entre Second String:");
gets(str2);
while(str1[i]!='\0')
{
str[j]=str1[i];
i++;j++;
}
i=0;
while(str[i]!='\0')
{
str[j]=str2[i];
i++;j++;
}
printf("The Concate Of Entered Strings Is:");
puts(str);
getch();
}
/* WAP to convert the given character into uppercase if it is in lowercase and viceversa */
#include<stdio.h>
#include<conio.h>
void main()
{
char ch;
printf("Enter a character:");
scanf("%c",&ch);
if(ch>='a' && ch<='z')
printf("The uppercase character of %c is %c",ch,ch-32);
else
printf("The lowercase character of %c is %c",ch,ch+32);
getch();
}
/* WAP to find the ASCII value of given character */
#include<stdio.h>
#include<conio.h>
void main()
{
char ch;
printf("Enter a character:");
scanf("%c",&ch);
printf("The ASCII value of %c is %d",ch,ch);
getch();
}
/* WAP to arrange 5 given numbers in ascending order */
#include<stdio.h>
#include<conio.h>
void main()
{
int num[5],i,j,temp;
printf("Enter 5 Numbers:");
for(i=0;i<=4;i++)
{
scanf("%d",&num[i]);
}
for(i=0;i<=4;i++)
{
for(j=i+1;j<=4;j++)
{
if(num[i]>num[j])
{
temp=num[i];
num[i]=num[j];
num[j]=temp;
}
}
}
printf("Ascending order:");
for(i=0;i<=4;i++)
{
printf("\n%d",num[i]);
}
getch();
}
/* WAP to Print the age of person in days */
#include<stdio.h>
#include<conio.h>
main()
{
int age,days;
printf("Enter your age:");
scanf("%d",&age);
days=age*365;
printf("You are %d days old.\n",days);
getch();
}
#include<stdio.h>
#include<conio.h>
void main()
{
int num,temp,rem,sum=0;
printf("Enter a number:");
scanf("%d",&num);
temp=num;
while(temp!=0)
{
rem=temp%10;
sum=sum+(rem*rem*rem);
temp=temp/10;
}
if(sum==num)
printf("\n%d is an Armstrong Number.",num);
else
printf("\n%d is not an Armstrong Number.",num);
getch();
}
#include<stdio.h>
#include<conio.h>
void main()
{
int dec,temp,bin[100],i=1,j;
printf("Enter A Decimal Number:");
scanf("%d",&dec);
temp=dec;
while(temp!=0)
{
bin[i++]=temp%2;
temp=temp/2;
}
printf("The Equivalent Binary Number Of %d is ",dec);
for(j=i-1;j>0;j--)
{
printf("%d",bin[j]);
}
getch();
}
#include<stdio.h>
#include<conio.h>
void main()
{
int bin,dec=0,temp,rem,j=1;
printf("Enter Any Binary Number:");
scanf("%d",&bin);
temp=bin;
while(temp!=0)
{
rem=temp%10;
dec=dec+rem*j;
j=j*2;
temp=temp/10;
}
printf("The Equivalent Decimal Number Of %d is %d",bin,dec);
}
