#include <iostream>

#include <assert.h>
#include <sys/resource.h>
#include <unistd.h>

static float time_used()
    {
    static rusage prev;
    rusage cur;

    assert(getrusage(RUSAGE_SELF, &cur) == 0);

    std::cout << '[' << cur.ru_utime.tv_sec << ", " << cur.ru_utime.tv_usec
              << ']';

    uint64_t diff = (cur.ru_utime.tv_sec - prev.ru_utime.tv_sec) * 1000000
        + cur.ru_utime.tv_usec - prev.ru_utime.tv_usec;

    std::cout << 'T' << diff/1000000. << std::flush;
    prev = cur;

    return diff/1000000.;
    }

int main(int argc, const char **argv)
    {
    int n = 0;

    for ( ; ; )
        {
        int k = 0;
        for (int i = 0; i < 1e9; ++i)
            k += rand();
        std::cout << ' ' << (k & 1) << ' ';
        float t = time_used();
        if (t == 0)
            {
            if (++n == 5)
                break;
            }
        else
            n = 0;
        }
    }