949 B
949 B
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
5900f4b01000cf542c50ffc2 | Problem 323: Bitwise-OR operations on random integers | 5 | 301980 | problem-323-bitwise-or-operations-on-random-integers |
--description--
Let y0, y1, y2,... be a sequence of random unsigned 32 bit integers
(i.e. 0 ≤ yi < 232, every value equally likely).
For the sequence xi the following recursion is given:x0 = 0 and
xi = xi-1| yi-1, for i > 0. ( | is the bitwise-OR operator)
It can be seen that eventually there will be an index N such that xi = 232 -1 (a bit-pattern of all ones) for all i ≥ N.
Find the expected value of N. Give your answer rounded to 10 digits after the decimal point.
--hints--
euler323()
should return 6.3551758451.
assert.strictEqual(euler323(), 6.3551758451);
--seed--
--seed-contents--
function euler323() {
return true;
}
euler323();
--solutions--
// solution required