From: "Jason Yip" <manman AT netteens DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: Pls help!!
Date: Tue, 7 Dec 1999 00:14:57 +0800
Organization: netteens.net (Hongkong Telecom IMS)
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

I wrote the following program.. I want the right answer shows "Very Good",
the wrong answer shows "No" and input again.. but why my progam like this:
1st answer always correct.. the 2nd answer always wrong...
How can I solve it? Thx a lot!!

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
main ()
{
int ans,h;
printf("Enter -1 to end\n");
do{
srand(time(NULL));
printf("How much is %d times %d? ",1+(rand()%9),1+(rand()%9));
ans=(1+(rand()%9))*(1+(rand()%9));
        scanf("%d",&h);
        if (ans == h)
 printf("Very Good!\n");
        else
        if (ans != h){
        do{
 printf("No. Please try again.\n");
        printf("? \n");
        scanf("%d",&h);} while (ans != h);
        }} while (ans != -1);
if (ans == -1)
        printf("That's all for now. Bye.");
return 0;
}