超快读快写 & 火车头
emm……卡常必备。
超快读快写
//#include<bits/stdc++.h>
#include<iostream>
#include<iomanip>
#include<cstring>
#include<stack>
#include<vector>
//#include<conio.h>
#include<string>
#include<map>
#include<cstdlib>
#include<queue>
#include<math.h>
#include<time.h>
#include<set>
#include<cstdio>
#include<stdio.h>
#include<algorithm>
using namespace std;
using std::cin;
using std::cout;
using std::endl;
namespace IN{
const int MAX_INPUT = 1000000;
#define getc() (p1==p2&&(p2=(p1=buf)+inbuf->sgetn(buf,MAX_INPUT),p1==p2)?EOF:*p1++)
char buf[MAX_INPUT],*p1,*p2;
template<typename T>inline bool read(T &x) {
static std::streambuf *inbuf=cin.rdbuf();
x=0;
register int f=0,flag=false;
register char ch=getc();
while(!isdigit(ch)){
if (ch=='-') f=1;
ch=getc();
}
if(isdigit(ch)) x=x*10+ch-'0',ch=getc(),flag=true;
while(isdigit(ch)) {
x=x*10+ch-48;
ch=getc();
}
x=f?-x:x;
return flag;
}
template<typename T,typename ...Args>inline bool read(T& a,Args& ...args) {
return read(a)&&read(args...);
}
#undef getc
}
namespace OUT{
template<typename T>inline void put(T x){
static std::streambuf *outbuf=cout.rdbuf();
static char stack[21];
static int top=0;
if(x<0){
outbuf->sputc('-');
x=-x;
}
if(!x){
outbuf->sputc('0');
outbuf->sputc('\n');
return;
}
while(x){
stack[++top]=x%10+'0';
x/=10;
}
while(top){
outbuf->sputc(stack[top]);
--top;
}
outbuf->sputc('\n');
}
inline void putc(const char ch){
static std::streambuf *outbuf=cout.rdbuf();
outbuf->sputc(ch);
}
inline void putstr(string s){
for(register int i=0;i<s.length();i++) putc(s[i]);
}
template<typename T>inline void put(const char ch,T x){
static std::streambuf *outbuf=cout.rdbuf();
static char stack[21];
static int top = 0;
if(x<0){
outbuf->sputc('-');
x=-x;
}
if(!x){
outbuf->sputc('0');
outbuf->sputc(ch);
return;
}
while(x){
stack[++top]=x%10+'0';
x/=10;
}
while(top){
outbuf->sputc(stack[top]);
--top;
}
outbuf->sputc(ch);
}
template<typename T,typename ...Args> inline void put(T a,Args ...args){
put(a);put(args...);
}
template<typename T,typename ...Args> inline void put(const char ch,T a,Args ...args){
put(ch,a);put(ch,args...);
}
}
using namespace IN;
using namespace OUT;
int main(){
std::ios::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
//read(a, b, c);
//put('\n', ans);
return 0;
}
火车头
#pragma GCC diagnostic error "-std=c++11"
#pragma GCC target("avx")
#pragma GCC optimize(3)
#pragma GCC optimize("Ofast")
#pragma GCC optimize("inline")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-ffast-math")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("unroll-loops")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-fwhole-program")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("inline-functions")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-fstrict-overflow")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-fcse-skip-blocks")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("inline-small-functions")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("-funsafe-loop-optimizations")
#pragma GCC optimize("inline-functions-called-once")
#pragma GCC optimize("-fdelete-null-pointer-checks")
没了。