PROGRAM-10

// Program of Menu driven

#include

#include

void main()

{ clrscr();

 int num,i,choice,f=1;

 printf("menu driven\n");

 printf("1 select as even/odd\n");

 printf("2 select finding the factorial\n");

 printf("3 select positive or negative\n");

printf("4 exit\n");

printf(" enter the choice 1,2,3,4\n");

scanf("%d", &choice);

switch(choice)

                {

case 1:

                printf("enter the number");

                scanf("%d", &num);

                if(num%2==0)

                printf("the number is even");

                else

                printf("the number is odd");

                break;

case 2:

                printf("the value should greater than zero");

                scanf("%d", &num);

                i=num;

                for(i=num; i>=1; i--)

                {

                 f=f*i;

                }

                printf("the factorial of the number is %d", f);

                break;

case 3:

                printf("enter the number");

                scanf("%d", &num);

                if(num>0)

                printf("the number is positive");

                else

                printf("the number is negayive");

                break;

case 4:

       printf("exit");

                break;

default:

  printf("read carefully, then enter the number");

  break;

}

 getch();

}

Algorithm

·                     Start

·                     Declare num, i, choice, f=1 as integer

·                      Write("menu driven")

·                      Write("1 select as even/odd")

·                      Write("2 select finding the factorial")

·                      Write("3 select positive or negative")

·                     Write("4 exit")

·                     Write(" the choice 1,2,3,4")

·                     Read(“the choice”)

·                     switch(choice)

·                     case start

·                     case1:

·                                     Write("the number")

·                                     Read(“the number”)

·                                     if(num%2==0)

·                                     Read("the number is even")

·                                     else

·                                     Read("the number is odd")

·                                     break

·                     case 2:

·                                     Write("the value should greater than zero")

·                                     Read(“the number)

·                                     i=num

·                                     for(i=num; i>=1; i--)

·                                      f=f*i

·                                     Read("the factorial of the number is " )

·                                     break

·                     case 3:

·                     Write("the number")

·                     Read(“the number)

·                                     if(num>0)

·                                     Read("the number is positive")

·                                     else

·                                     Read("the number is negative")

·                                     break

·                     case 4:

·                            Read("exit")

·                                     break;

·                     default:

·                       Read("read carefully, then enter the

number")

·                       break;

·                      stop