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Tip of the Day
Language: Algorithms
Expertise: Beginner
Oct 10, 2000

Random Number Generator

Question:
Is there a way to capture the last value (digit) of the system clock number and use that to generate a random number? Or look at system clock--find last digit (in seconds)--make my variable equal to that digit?

Answer:
Use the time() function to get the system time. This result modulo 10 returns the last digit of the time value which you can use as a seed for generating random numbers:

#include 
int main()
{
time_t t = time(0); // current system time
int seed = t%10; // get last digit
// .. use seed
}
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