某考试中出题人给出的毒瘤文件快速输入输出。

namespace io {const int SIZE = (1 << 21) + 1;char ibuf[SIZE], *iS, *iT, obuf[SIZE], *oS = obuf, *oT = oS + SIZE - 1, c, qu[55]; int f, qr;// getchar#define gc() (iS == iT ? (iT = (iS = ibuf) + fread (ibuf, 1, SIZE, stdin), (iS == iT ? EOF : *iS ++)) : *iS ++)// print the remaining partinline void flush () {fwrite (obuf, 1, oS - obuf, stdout);oS = obuf;}// putcharinline void putc (char x) {*oS ++ = x;if (oS == oT) flush ();}// input a signed integertemplate <class I>inline void gi (I &x) {for (f = 1, c = gc(); c < '0' || c > '9'; c = gc()) if (c == '-') f = -1;for (x = 0; c <= '9' && c >= '0'; c = gc()) x = x * 10 + (c & 15); x *= f;}// print a signed integertemplate <class I>inline void print (I x) {if (!x) putc ('0'); if (x < 0) putc ('-'), x = -x;while (x) qu[++ qr] = x % 10 + '0',  x /= 10;while (qr) putc (qu[qr --]);}//no need to call flush at the end manuallystruct Flusher_ {~Flusher_(){flush();}}io_flusher_;
}
using io :: gi;
using io :: print;

速度爆炸，谨慎使用！