How many hours do you spend on gaming ?

uint32_t x, r = 0xfffffffe;
i = (i + 1) & 4095;
t = a * Q[i] + c;
c = (t >> 32);
x = t + c;
if (x < c) {
x++;
c++;
}
return (Q[i] = r - x);
}

char *myStrCat (char *s, char *a) {
while (*s != '\0') s++;
while (*a != '\0') *s++ = *a++;
*s = '\0';
return s;
}

char *replStr (char *str, size_t count) {
if (count == 0) return NULL;
char *ret = malloc (strlen (str) * count + count);
if (ret == NULL) return NULL;
*ret = '\0';
char *tmp = myStrCat (ret, str);
while (--count > 0) {
tmp = myStrCat (tmp, str);
}