我的C++开头～

/**************************************************************************************************************************************************************/#include <iostream>#include <functional>#include <algorithm>#include <complex>#include <cstdlib>#include <cstring>#include <fstream>#include <iomanip>#include <sstream>#include <utility>#include <bitset>#include <cctype>#include <cstdio>#include <limits>#include <memory>#include <string>#include <vector>#include <cmath>#include <ctime>#include <queue>#include <stack>#include <list>#include <map>#include <set>using namespace std;#define LOWBIT(x) ( (x) & ( (x) ^ ( (x) - 1 ) ) )#define CLR(x, k) memset((x), (k), sizeof(x))#define CPY(t, s) memcpy((t), (s), sizeof(s))#define SC(t, s) static_cast<t>(s)#define LEN(s) static_cast<int>( strlen((s)) )#define SZ(s) static_cast<int>( (s).size() )typedef double LF;typedef __int64 LL;//VCtypedef unsigned __int64 ULL;typedef pair<int, int> PII;typedef pair<LL, LL> PLL;typedef pair<double, double> PDD;typedef vector<int> VI;typedef vector<char> VC;typedef vector<double> VF;typedef vector<string> VS;template <typename T>T sqa(const T & x){return x * x;}template <typename T>T gcd(T a, T b){if (!a || !b){return max(a, b);}T t;while (t = a % b){a = b;b = t;}return b;};const int INF_INT = 0x3f3f3f3f;const LL INF_LL = 0x7fffffffffffffffLL;//15fconst double oo = 10e9;const double eps = 10e-7;const double PI = acos(-1.0);#define  ONLINE_JUDGEvoid ace(){}int main(){#ifndef ONLINE_JUDGEfreopen("in.txt", "r", stdin);#endiface();return 0;}/**************************************************************************************************************************************************************/