我将尝试使用以下示例解释我的问题:
vector<pair<string, string>> a = { { "A","1" }, {"B","2" },{ "C","3" },{ "D","3" },{ "E","5" } };
vector<pair<string, string>> b = { { "A","1" },{ "B","3" },{ "D","3" },{ "E","4" },{ "Z","5" } };
什么是最有效的方法来擦除重复并将输出到相同的向量？对的数量非常大,比如大约10万.
两个向量都按第一个元素排序.
vector<pair<string, string>> a = { { "B","2" },{ "C","3" },{ "E","5" } };
vector<pair<string, string>> b = { { "B","3" },{ "E","4" },{ "Z","5" } };
问题是,我需要在删除重复项后比较这些向量.该对中的第一个元素是文件路径,第二个元素是它的校验和.因此,例如,如果我"B","2"在第一个容器中,并且"B","3"是第二个,我可以将此文件列为"已修改".std::set如果这会使这个问题更容易,我愿意使用.