版权声明:本文为博主原创文章,需转载请联系博主。 https://blog.csdn.net/ezoixx130/article/details/81749667
采用fread的C++终极读入黑箱
测速:待填坑
#include <bits/stdc++.h>
using namespace std;
class IO
{
char buffer[10000001];
char *h;
int len;
inline char gchar()
{
return *h++;
}
inline bool validdigit(char c)
{
return c>='0' && c<='9';
}
public:
inline void init()
{
len=fread(buffer,1,10000000,stdin);
h=buffer;
}
inline int nextint()
{
register int i=0;
register char c;
do c=gchar();while(!validdigit(c));
do{i=i*10+c-48;c=gchar();}while(validdigit(c));
return i;
}
inline int nextsigned()
{
register int i=0,f=1;
register char c;
do{c=gchar();if(c=='-')f=-1;}while(!validdigit(c));
do{i=i*10+c-48;c=gchar();}while(validdigit(c));
return i*f;
}
inline long long nextlonglong()
{
register long long i=0;
register char c;
do c=gchar();while(!validdigit(c));
do{i=i*10+c-48;c=gchar();}while(validdigit(c));
return i;
}
inline long long nextsignedlonglong()
{
register long long i=0,f=1;
register char c;
do{c=gchar();if(c=='-')f=-1;}while(!validdigit(c));
do{i=i*10+c-48;c=gchar();}while(validdigit(c));
return i*f;
}
inline char nextchar()
{
register char c;
do c=gchar();while(c<=' ');
return c;
}
};
int main()
{
}