快读/快写 模板
快读/快写 模板
参考文章 入口
快读模板
inline int read()
{
int x = 0,f = 1;
char ch = getchar();
while (ch < '0' || ch>'9')
{
if (ch == '-')
f = -1;
ch = getchar();
}
while (ch >= '0' && ch <= '9')
{
x = (x << 1) + (x << 3) + (ch ^ 48);
ch = getchar();
}
return x * f;
}
快写模板
inline void write(int x)
{
if (x < 0) putchar('-'), x = -x;
if(x > 9)
write(x / 10);
putchar(x % 10 + '0');
return;
}
使用 isdigit()
、LL
#include <iostream>
using namespace std;
typedef long long LL;
inline LL read()
{
LL x = 0, f = 1;
char ch = getchar();
while (!isdigit(ch))
{
if (ch == '-')
f = -1;
ch = getchar();
}
while (isdigit(ch))
{
x = (x << 1) + (x << 3) + (ch ^ 48);
ch = getchar();
}
return x * f;
}
inline void write(LL x)
{
if (x < 0) putchar('-'), x = -x;
if (x > 9) write(x / 10);
putchar(x % 10 + '0');
}
int main()
{
int a = read();
write(a);
return 0;
}