Mail Archives: djgpp/1999/12/07/11:33:15
From: | "Jason Yip" <manman AT netteens DOT net>
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | "-1" cannot quite the prog..
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Date: | Tue, 7 Dec 1999 23:37:24 +0800
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Organization: | netteens.net (Hongkong Telecom IMS)
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Lines: | 39
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Message-ID: | <82j9n0$bi8$1@imsp026.netvigator.com>
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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Reply-To: | djgpp AT delorie DOT com
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I wrote this prog and expect it can be quited by entering -1...
however it shows wrong if I enter "-1"...
What's more, when I enter a wrong answer.. the answer will never be correct
again...
I wonder why it acts like this...
Can anyone helps me? Thx..
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
main ()
{
int ans,h,a,b;
printf("Enter -1 to end\n");
do{
srand(time(NULL));
a=1+(rand()%9);
b=1+(rand()%9);
printf("How much is %d times %d? ",a,b);
ans=a*b;
scanf("%d",&h);
if (ans == h || h != -1)
printf("Very Good!\n");
else
if (ans != h || h != -1){
do{{
printf("No. Please try again.\n");
printf("? ");
scanf("%d",&h);}
if (ans == h || h != -1)
printf("Very Good!\n");} while (ans != h || h != -1);
}} while (h != -1);
if (h == -1)
printf("That's all for now. Bye.");
return 0;
}
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