ACM常用的C++头文件！

#include <vector>  #include <list>  #include <map>  #include <set>  #include <deque>  #include <queue>  #include <stack>  #include <bitset>  #include <algorithm>   #include <sstream>  #include <iostream>  #include <iomanip>  #include <cmath>  #include <cstdlib>  #include <string>  #include <ctime>  #include <cassert>  #include <climits>#include <cfloat>#include <cctype>using namespace std;