How to use binary search in C language
This article mainly introduces how to use binary search in C language, which has a certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article.
Basic dichotomy
Let's first review the basic framework of binary search. In general, the actual scenario is to find the leftmost element or the rightmost element equal to target. The code is as follows:
Find the left boundary int binary_search_firstequal (vector & vec, int target) {int ilen = (int) vec.size (); if (ilen)
