hi all...i am a not that much in programming ...

i would ask you how i can generate a multiple choice question chosen randomly from a list of questions with answers using functions in C program ...i know how to generate random numbers only ...

help me please ,,, as soon ,,,

## All 11 Replies

Create an array of questions and use the random number as an index for the array.

thank u...

but i still don't know how to use array ...i know functions only ....if u can write some of the code ...

>but i still don't know how to use array
So use a series of if statements, do you know how to use those? :rolleyes:

``````int r = rand() % N;

if ( r == 0 )
/* First question */
else if ( r == 1 )
/* Second question */
...
else if ( r == N - 1 )
/* Nth question */``````

i try these code that i want 2 questions appear randomly from 3 quetions ..but still don't work.. :sad: :sad:

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

int main()
{
int N,counter,i;
int r = rand() % N;

for(i=1;i<=2;i++)
{
if(r==0)
printf("2*2=\na)4  b)2  c)3  d)5\n");
if(getchar()=='a');
counter++;

else if(r==1)
printf("2*5=\na)3  b)10  c)4   d)2\n");
if(getchar()=='b');
counter++;

else if(r==2)
printf("2*9=\na)3  b)10  c)18   d)2\n");
if(getchar()=='c');
counter++;

}

}
``````
commented: Use code tags. +0

Call rand every time you want a random number. If you only get one random number then you'll always have the same question. You would think this would be obvious. I guess I just expect too much from other people.

I still can't solve it >>>

thank u ...and if u can give more help ...i'd be happy ..i try it ...but i can't generate random questions ....

thank u ...

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

int main()
{
int N = 3,counter,i;

for(i=0;i<10;i++)
{
int r = rand() % N;

if(r==0) {
printf("2*2=\na)4 b)2 c)3 d)5\n");
if(getchar()=='a')
counter++;
}
else if(r==1) {
printf("2*5=\na)3 b)10 c)4 d)2\n");
if(getchar()=='b')
counter++;
}
else if(r==2) {
printf("2*9=\na)3 b)10 c)18 d)2\n");
if(getchar()=='c')
counter++;
}
getchar();
}

return 0;
}``````

it runs .... :)

thannnnnnk u very much

and sorry for inconvenience....

>and sorry for inconvenience....
No, it's my fault. I didn't look closely enough at the code to see all of your problems. If I had things would have gone much more quickly, and for that I appologize.

I have 100 Rs. I want to earn interest by lending money to other people. I can lend
the money for 10 days with 20% interest rate per month or 20 days with 10%
interest rate per month. Write a program to calculate interest for both cases &
choose the best option to earn more money.in c

Hi good day, I need your help :)
this is a C language

"Write a program that accepts an input computed by a constant (10)
Sequence of output:
output sum twice (increment by 1)
Output product twice (decrement by 1)
Quotient
Difference
Output average twice (increment by 2)"

commented: You need to create a new discussion and show your work. Burying your question under 15 years of discussion is hiding it. -4
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