个人acm模版

#pragma comment(linker, "/stack:20000000")
#define _CRT_SECURE_NO_WARNINGS
#include "stdio.h"
#ifndef DEBUG
#include <iostream>
#include <cmath>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <string>
#include <cstdlib>
#include <vector>
#include <bitset>
#include <map>
#include <queue>
#include <ctime>
#include <stack>
#include <set>
#include <list>
#include <deque>
#include <functional>
#include <sstream>
#include <fstream>
#include <complex>
#include <numeric>
using namespace std;

double __begin;
#define DTIME(ccc) __begin = clock(); ccc; std::cerr<<"Time of work = "<<(clock()-__begin)/CLOCKS_PER_SEC<<std::endl;

#define mp make_pair
typedef long long ll;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef pair<long long, long long> pll;
typedef vector<int> vi;
typedef vector<long long> vll;

template<typename T1, typename T2, typename T3>
struct triple{ T1 a; T2 b; T3 c; triple(){}; triple(T1 _a, T2 _b, T3 _c) :a(_a), b(_b), c(_c){} };
#define tri triple<int,int,int>
#define trl triple<ll,ll,ll>
template<typename T1, typename T2, typename T3>
bool operator<(const triple<T1, T2, T3> &t1, const triple<T1, T2, T3> &t2){ if (t1.a != t2.a) return t1.a < t2.a; else return t1.b < t2.b; }
template<typename T1, typename T2, typename T3>
inline std::ostream& operator << (std::ostream& os, const triple<T1, T2, T3>& t){ return os << "(" << t.a << ", " << t.b << ", " << t.c << ")"; }

#define FI(n) for(int i=0;i<n;i++)
#define FI1(n) for(int i=1;i<n;i++)
#define FJ(n) for(int j=0;j<n;j++)
#define FJ1(n) for(int j=1;j<n;j++)
#define FJI for(int j=0;j<i;j++)
#define FJI1 for(int j=1;j<i;j++)
#define FJIE for(int j=0;j<=i;j++)
#define FJIE1 for(int j=1;j<=i;j++)
#define For(i,a,b) for(int i=a;i<b;i++)

// Input macros
#define S(n)                        scanf("%d",&n)
#define SS(n)                       scanf("%s",n)
#define S2(a,b)                     scanf("%d%d",&a,&b)
#define Sc(n)                       scanf("%c",&n)
#define Sl(n)                       scanf("%I64d",&n)
#define Sl2(a,b)                    scanf("%I64d%I64d",&a,&b)
#define Sf(n)                       scanf("%lf",&n)
#define Sf2(a,b)                    scanf("%lf%lf",&a,&b)

//Output macros
#define Pr(n)                       printf("%d ",n)
#define Prn(n)                      printf("%d\n",n)
#define Prc(n)                      printf("%c",n)
#define Prcn(n)                     printf("%c\n",n)
#define Prl(n)                      printf("%I64d ",n)
#define Prln(n)                     printf("%I64d\n",n)
#define Prf(n)                      printf("%lf ",n)
#define Prfn(n)                     printf("%lf\n",n)
#define Prs(n)                      printf("%s ",n)
#define Prsn(n)                     printf("%s\n",n)

//STL containers
#define foreach(v, c)               for( auto v = (c).begin();  v != (c).end(); ++v)
#define all(a)                      a.begin(), a.end()
#define in(a,b)                     ((b).find(a) != (b).end())
#define in2(a,b)                    (find(all(b),a) != (b).end())
#define pb                          push_back
#define sz(a)                       ((int)(a.size()))
#define svi(vec,n) FI(n) S(vec[y])
#define svl(vec,n) FI(n) Sl(vec[y])
#define IT ::iterator

//int some_primes[10] = {100271, 500179, 1000003, 2000227, 5000321}
//fill char arrays
#define fill(a,v)                    memset(a, v, sizeof (a))

inline int bits_count(int v){ v = v - ((v >> 1) & 0x55555555); v = (v & 0x33333333) + ((v >> 2) & 0x33333333); return((v + (v >> 4) & 0xF0F0F0F) * 0x1010101) >> 24; }
inline int bits_count(ll v){ int t = v >> 32; int p = (v & ((1LL << 32) - 1)); return bits_count(t) + bits_count(p); }
unsigned int reverse_bits(register unsigned int x){ x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1)); x = (((x & 0xcccccccc) >> 2) | ((x & 0x33333333) << 2)); x = (((x & 0xf0f0f0f0) >> 4) | ((x & 0x0f0f0f0f) << 4)); x = (((x & 0xff00ff00) >> 8) | ((x & 0x00ff00ff) << 8)); return((x >> 16) | (x << 16)); }
inline int sign(int x){ return (x >> 31) | (-x >> 31); }
inline bool ispow2(int x){ return (x != 0 && (x&(x - 1)) == 0); }
#define checkbit(n,b)        ( (n >> b) & 1)
#define INDEX(arr,ind)       (lower_bound(all(arr),ind)-arr.begin())
#define sor(a)  sort(all(a))
#define rsor(a) sort(all(a)); reverse(all(a));

//STL output ********************************
template<typename T1, typename T2>inline std::ostream& operator << (std::ostream& os, const std::pair<T1, T2>& p){ return os << "(" << p.first << ", " << p.second << ")"; }
template<typename T>inline std::ostream &operator<<(std::ostream &os, const std::vector<T>& v){ bool first = true; os << "["; for (unsigned int i = 0; i < v.size(); i++){ if (!first)os << ", "; os << v[i]; first = false; }return os << "]"; }
template<typename T>inline std::ostream &operator<<(std::ostream &os, const std::set<T>&v){ bool first = true; os << "["; for (typename std::set<T>::const_iterator ii = v.begin(); ii != v.end(); ++ii){ if (!first)os << ", "; os << *ii; first = false; }return os << "]"; }
template<typename T1, typename T2>inline std::ostream &operator << (std::ostream & os, const std::map<T1, T2>& v){ bool first = true; os << "["; for (typename std::map<T1, T2>::const_iterator ii = v.begin(); ii != v.end(); ++ii){ if (!first)os << ", "; os << *ii; first = false; }return os << "]"; }
template<typename T, typename T2>void printarray(T  a[], T2 sz, T2 beg = 0){ for (T2 i = beg; i < sz; i++) cout << a[i] << " "; cout << endl; }

#define FREIN(FILE) freopen(FILE,"rt",stdin)
#define FREOUT(FILE) freopen(FILE,"wt",stdout)

#define sqr(x) ((x)*(x))
#define sqrt(x) sqrt(1.0*(x))
#define pow(x,n) pow(1.0*(x),n)

inline ll binpow(ll x, ll n){ ll res = 1; while (n){ if (n & 1)res *= x; x *= x; n >>= 1; }return res; }
inline ll powmod(ll x, ll n, ll _mod){ ll res = 1; while (n){ if (n & 1)res = (res*x) % _mod; x = (x*x) % _mod; n >>= 1; }return res; }
inline ll gcd(ll a, ll b){ ll t; while (b){ a = a%b; t = a; a = b; b = t; }return a; }
inline int gcd(int a, int b){ int t; while (b){ a = a%b; t = a; a = b; b = t; }return a; }
inline ll lcm(int a, int b){ return a / gcd(a, b)*(ll)b; }
inline ll lcm(ll a, ll b){ return a / gcd(a, b)*b; }
inline ll gcd(ll a, ll b, ll c){ return gcd(gcd(a, b), c); }
inline int gcd(int a, int b, int c){ return gcd(gcd(a, b), c); }
inline ll lcm(ll a, ll b, ll c){ return lcm(lcm(a, b), c); }
inline ll lcm(int a, int b, int c){ return lcm(lcm(a, b), (ll)c); }

inline ll max(ll a, ll b){ return (a > b) ? a : b; }
inline int max(int a, int b){ return (a > b) ? a : b; }
inline double max(double a, double b){ return (a > b) ? a : b; }
inline ll max(ll a, ll b, ll c){ return max(a, max(b, c)); }
inline int max(int a, int b, int c){ return max(a, max(b, c)); }
inline double max(double a, double b, double c){ return max(a, max(b, c)); }
inline ll min(ll a, ll b){ return (a < b) ? a : b; }
inline int min(int a, int b){ return (a < b) ? a : b; }
inline double min(double a, double b){ return (a < b) ? a : b; }
inline ll min(ll a, ll b, ll c){ return min(a, min(b, c)); }
inline int min(int a, int b, int c){ return min(a, min(b, c)); }
inline double min(double a, double b, double c){ return min(a, min(b, c)); }

template<class T>
inline void getar(T a, int n, int m){ for (int i = 0; i < n; i++) for (int j = 0; j < m; ++j) { scanf("%d", &a[i][j]); } }
inline void getar(int *a, int n){ for (int ii = 0; ii < n; ii++){ scanf("%d", a + ii); } }
inline void getar(pii *a, int n){ for (int ii = 0; ii < n; ii++){ scanf("%d%d", &a[ii].first, &a[ii].second); } }
inline void getar(ll *a, int n){ for (int ii = 0; ii < n; ii++){ scanf("%I64d", a + ii); } }
template<class T>
inline void cinarr(T a, int n){ for (int i = 0; i < n; ++i) cin >> a[i]; }
template <class T>
inline bool scan_d(T &ret) {
char c; int sgn;
if(c = getchar(),c == EOF) return 0; //EOF
while(c != '-' && (c < '0' || c > '9')) c = getchar();
sgn = (c == '-') ? -1 : 1;
ret = (c == '-') ? 0 : (c - '0');
while(c = getchar(),c >= '0' && c <= '9') ret = ret * 10 + (c - '0');
ret *= sgn;
return 1;
}

inline void out(int x) {
if(x > 9) out(x / 10);
putchar(x % 10 + '0');
}
// Useful constants
#define INF         9000000000
#define EPS         (double)1e-9
#define mod         1000000007
#define PI          3.14159265358979
//*******************************************************************************/
#endif