#include <stdio.h>
#include <time.h>
/*
https://www.cprogramming.com/tutorial/c/lesson3.html
https://www.cprogramming.com/tutorial/printf-format-strings.html
http://man7.org/linux/man-pages/man3/clock.3.html
*/

int main()
{
    int i = 1;
    int sec = 0;
    while ( i < 6 ) {
            sec = (int)( clock()/CLOCKS_PER_SEC ); // get program time/ convert to seconds as integer
            if ( sec == i ) {
                printf("while loop %d, time %d\n",i,sec );
                i++;
            }
    }
    return 0;
}