> they could get rid of it by bisecting on [1/n; n] instead of [0; n], as they already know that 1/n (and numbers lower than 1/n) isn't a valid candidate from

> they could get rid of it by bisecting on [1/n; n] instead of [0; n], as they already know that 1/n (and numbers lower than 1/n) isn't a valid candidate from the first step. Did you mean [n/2; n]?