Sort std::vector but ignore a certain number

Question

I have an std::vector of the size 10 and each entry is initially -1. This vector represents a leaderboard for my game (high scores), and -1 just means th

Answer 1

From your description, it appears that the score can be never negative. In that case, I'd recommend the scores to be a vector of unsigned int. You can define a constant

const unsigned int INFINITY = -1;

and load your vector with INFINITY initially. INFINITY is the maximum positive integer that can be stored in a 32 bit unsigned integer (which also corresponds to -1 in 2's complement)

Then you could simply sort using

sort(v.begin(),v.end());

All INFINITY will be at the end after the sort.