Question

How to delay program execution for random number of seconds in C

Answer 1

#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <unistd.h>
 
int main() {
    time_t t = time(NULL);
     
    printf("%s", ctime(&t));
 
    srand(time(NULL));

    sleep((rand() % 10) + 1); // 1 to 10 seconds
 
    t = time(NULL);
    
    printf("%s", ctime(&t));
 
    return 0;
}
 
 
 
 
/*
run:
 
Mon May 30 05:47:47 2022
Mon May 30 05:47:52 2022
 
*/

 

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