errori n code blocks random was not declared in this scope

[sachin vishnoi]

when i write this statement in code blocks
randomize();
and
r1=random(991)+10;
the error is coming random not declared in the scope
and
randomize not declared in the scope

 

[Pinhedd]

the function that you are looking for is rand() not random().

rand() will return a random integral number between 0 and RAND_MAX

If you wish to generate a random number less than RAND_MAX, take the modulus of the returned value and your own max value.

For example,

int my_random_value = 0;
int my_max_value = 500;
my_random_value = rand() % my_max_value

will generate a random number between 0 and 499. If you wish to normalize this to the range 1 to 500, simply add 1

my_random_value = (rand() % my_max_value) + 1

 

[Alabalcho]

CodeBlocks can be used for variery of programming languages. Assuming that you're using it for C/CPP, you might also want to make sure

#include <stdlib.h>

appears in the first couple of your source file.
Help on rand and random can be obtained on the command line

man 3 rand
man 3 random