c++11 - C++ best way to split vector into n vector -
i have std::vector<std::string> in vector push_back string txt file, : std::string line; std::vector<std::string> path; while(getline(fichier, line)) { path.push_back(line); } i split path vector n other vector of 10 line example. if size of vector 25, want 2 other vector of 10 element , 1 vector of 5 element. what best way ? best matter of opinion, following (with bunch_size being 10 ): for(size_t = 0; < strings.size(); += bunch_size) { auto last = std::min(strings.size(), + bunch_size); bunches.emplace_back(strings.begin() + i, strings.begin() + last); } demo if strings large , want avoid copying, can go move version: for(size_t = 0; < strings.size(); += bunch_size) { auto last = std::min(strings.size(), + bunch_size); auto index = / bunch_size; auto& vec = bunches[index]; vec.reserve(last - i); move(strings.begin() + i, strings.begin() + last, back_inserter(vec)); } demo
