leetcodepushfront leetcode C++中的leetcode

leetcode推前leetcode C++中的leetcode重要：15, 74, 105, 200, 236, 39 & 40 & 46, 43, 55, 81, 90, 96, 131重做：31、33 binary_search变种：旋转，重复cp： // string strNew = str + 'c' string strNew = str + "car" string strNew = str + (char)56 bool eq = str1 == str2 bool eq = str == "car" // vector visited(numCourses, false); v.size() v.push_back(val) v.pop_back() val = v.front() val = v.back() // set s.insert(val) s.erase(val) s.find(val) != s.end() // s contains val // queue q.front() q.back() q