• Placement Papers
• /
• C
• /
• Programming

C Question Papers:

(#M40032640) C Programming question random Keep an EYE

Q. What is the code for picking a random number from fifty numbers and that fifty number set have 8 sets

Asked In C narapureddyyallareddy (10 years ago)

Unsolved Read Solution (4)

Is this Puzzle helpful?   (2)   (1) Submit Your Solution

Read Solution (4) :

vikas  (10 years ago)

#include
#include
#include
int main()
{
int x;
srand(time(NULL));
x=rand()%51;
printf("%d",x);
}
rand() fumction is used to pick a random number and this no. is not same for every time

Is this solution Helpfull? Yes | No (1)  

TANUSREE MAHAPATRA  (10 years ago)

what is the meanining of this line?
srand(time(NULL));

Is this solution Helpfull? Yes | No   

Mani kandan  (10 years ago)

srand(time(NULL)); It seeds the random number generator with the current system time.
The NULL means that the value (the time in seconds) isn't stored anywhere.

Is this solution Helpfull? Yes | No   

jalpan  (10 years ago)

srand(any fixed value means..1,2,3....or any value).
i.e.
while(1)
{
srand(5);
r=rand()&51;
pf("%dn",r);
}
it means that infinite loop right, so each time it gives same value inbetween 1-50.
But
if u take srand(time(1)); every one second value will be change between 1-50.

u can take srand(getpid()); means every execution of ur program value will be change.
getpid()--> process id.

Is this solution Helpfull? Yes | No   

Please Login to Read Solution.