//适用于正负整数// 输入
template <
class T>inline
bool read(T &
ret)
{
char c;
int sgn;
if(c = getchar(), c == EOF)
return 0;
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;
}
// 输出
template <typename T> inline
void write(T x) {
if (x <
0) {putchar(
'-'); x = -
x;}
if (x >
9) write(x /
10);
putchar(x %
10 +
'0');
}
// 输出行
template <typename T> inline
void writeln(T x)
{
write(x);
puts("");
}
转载于:https://www.cnblogs.com/AntonLiu/p/10729820.html
