Algorithms

Fancy Numbers in Base 4

Difficulty

Asked at Hudson River Trading

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Available in Python and C++. You are solving it in C++. Switch to Python

xxxx x xxxxxxxx xxxxxxx xxxxx xxxx xxx xxxx-x xxxxxxxxxxxxxx xxxx xxxx xxx xxxxxx x xxx x. xxx xxxxxxx, xx xx (xxx_x), xx xx xx xxxxx, xxx xx xx (xxx_x), xx xx xx xxx. xxxxxxxxx xxxxx_xxxxx(x) xxxxxxxxx xxx xxxx xxxxx xxxxxxxx xxx xxxxxxxx xxxx xxxx (x). xxxx xx xxx xxxxxxxx, xx xx xx xxxxx xxxxxxx. xxxxxxxx xxxxx_xxxxx(x) # x xxxxx_xxxxx(xx) # x (x, x xxx x, xxxxx xxx x, xx xxx xx xx xxxx x) xxxxx_xxxxx(xx) # x (x, x, x, xx xxx xx; xx xxxxxx xxxxxxx xx xx xxxx xxxx xx) xxxxxxxxxxx (x xx x xx xx^{xx}). xxxxxx xxxxx (x^{xx}) xxxx x xx-xxx xxxxxxx. xxx xxxxxxx xxxxxx xxxx xxxx x xxxxxxx xxxxxx xx (x) xx x++ xxx xxxxxx xxxxxxxx xx xxxxxx, xx xx (xx^{xx}). xxxxxxxx xxxxx xxxxxxx xxxxx (x) xxxx xxx xxxxxx, xxx xxx xxxx xxxxxxx xxx xxxxx xxxxxxx xxx xx xxx: xxxxx (xx^{xx}) xxxxx xxx xxxx xxxx x xxxxxxx xx xxxx. xx x++ xxxx xxxx xxxxx_xxxxx(xxxx xxxx x);

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Language:

count_fancy

// ...
// ...
// ...
// ...
long long count_fancy(long long n) {
    // ...
    (void)n;
    return -1;
}

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