Need help for my Magic Number Program

[aozkaya]

Hello,

I am trying to use a code about magic number. But it doesn't work as it is supposed to be. When I try to enter a new magic number by pressing 1, it doesn't wait for me to enter a number. It goes back to the do-while loop and prints the menu again.

Any help would be greatly appreciated,

#include <stdio.h>
#include <stdlib.h>

int play(int m);
int next_magic();
int getnum();

main()
{
	int option;
	int magic;
	do{
		printf("1. Define a new magic number\n");
		printf("2. Play\n");
		printf("3. Quit\n");
		printf("Enter your choice:\n");
		scanf("%d",&option);
	switch(option){
	case 1:
		magic=next_magic();
		break;
	case 2:
		play(magic);
		break;
	case 3:
		printf("Goodbye\n");
		break;
		}
	}while(option!=3);
}
int next_magic()
{
	printf("enter new magic number:");
	return(getnum());
}
int getnum()
{
	char s[30];
	gets(s);
	return(atoi(s));
}
int play(int m)
{
	int t;
	int x;
	for(t=0;t<10;t++){
		printf("Guess the number");
		x=getnum();
		if(x==m){
			printf("***Right***");
			return;
		}
		else
			if(x<m) printf("Too Low\n");
			else printf("Too High\n");
	}
	printf("You used up all your guess.. try again");
}

[mrbains]

Try writing getchar(); just before starting while loop

[rogster001]

Why would it wait? You have to put some code in to make it do that, why don't you just use scanf again in the next_magic() function?

[ssharish2005]

Try call this function just after the scanf function call in main.

void flush( void )
{
     int ch;
     while( ( ch = getchar() ) != '\n' && ch != EOF );
}

ssharish