C PROGRAMS : CONTROL STUCTURES

C PROGRAMS : CONTROL STRUCTURES
6. Program for finding the factorial of a number
#include<stdio.h>
#include<conio.h> // Linux user - Remove this

int main()
{

// Variable for n=number and fact=factorial
int n,fact=1;

// Inputing number whose factorial is to be found
printf("Enter number:");
scanf("%d",&n);

// Calculating Factorial
while(n>=1)
{
fact=fact*n;
n--;
}

// Diaplaying Factorial
printf("%d",fact);
getch (); // Linux user - Remove this

return 0;
}

7. Program to find whether the entered character is vowel or not using if else
#include<stdio.h>
#include<conio.h> // Linux user - Remove this

int main()
{
 // Declaring variable where c=character
 char c;
 
 // Inputing character
 printf("Enter character:");
 scanf("%c",&c);
 
 // Determing whether entered character is vowel or not
 if(c=='a' || c=='e' || c=='i' || c=='o' || c=='u' || c=='A' || 
 c=='E' || c=='I' || c=='O' || c=='U')
 {
 printf("Entered character is vowel");
 }
 else
 printf("Eneterd character is a constant");
 
 getch(); // Linux user - Remove this

 return 0;
}

8. Program to find whether the entered character is vowel or not using switch case
#include<stdio.h>
#include<conio.h> // Linux user - Remove this

int main()
{
 // Declaring variable where c=character
 char c;
 
 // Inputing character
 printf("Enter character:");
 scanf("%c",&c);
 
// Determing whether entered character is vowel or not
switch(c)
{
 case 'a': case 'A':
 case 'e': case 'E':
 case 'i': case 'I':
 case 'o': case 'O':
 case 'u': case 'U': 
 printf("Character is vowel");
 break;
 default:
  printf("Character is a constant");
}
}

9. Program to print the table of a given number till the user wishes
#include<stdio.h>
#include<conio.h> // Linux user - Remove this

int main()
{
 // Declaring Variable for n=number, tw=till where he wants to print the table
 int i, n, tw;
 
 // Inputting number and user wish
 printf("Enter the number whose table you want to generate:");
 scanf("%d",&n);
 printf("Enter till where you want to generate table:");
 scanf("%d",&tw);
 
 // Displaying table
 for(i=1;i<=tw;i++)
 {
 printf("%d * %d = %d \n",n,i,n*i);
 }
 
 getch(); // Linux user - Remove this

 return 0;
}
10. Program to sum up all the integer numbers input at run time until zero is entered
#include<stdio.h>
#include<conio.h> // Linux user - Remove this

int main()
{
 // Declaring variable for n=number, s=sum
 int n,s=0;
 
 do
 {
 // Inputting number
 printf("Enter any number:");
 scanf("%d",&n);
 
  // Calculating sum until zero is not entered
  s=s+n;
 }while(n!=0);
 
 // Displaying sum of all integers entered
 printf("Sum of all integers=%d",s);
 
 getch(); // Linux user - Remove this

 return 0;
}

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