From a7197800dd7976b88f3d7613587fc3224aa829c0 Mon Sep 17 00:00:00 2001
From: mgt <mgt@oi-wiki.org>
Date: Sat, 17 Oct 2020 19:34:47 +0800
Subject: [PATCH] =?utf8?q?fix:=20=E5=88=A0=E9=99=A4=E8=AF=AF=E5=AF=BC?=
 =?utf8?q?=E6=80=A7=E7=9A=84=E6=B3=A8=E9=87=8A?=
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thanks @Harry-Chen
---
 docs/math/bignum.md | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/docs/math/bignum.md b/docs/math/bignum.md
index 6a36caf8..b1a26fe5 100644
--- a/docs/math/bignum.md
+++ b/docs/math/bignum.md
@@ -711,12 +711,7 @@ $$
       Big(const int);
       Big(const char*);
       Big(const Big&);
-      Big& operator=(const Big&);  // 注意这里operator有&，因为赋值有修改……
-      // 由于OI中要求效率
-      // 此处不使用泛型函数
-      // 故不重载
-      // istream& operator>>(istream&,  BigNum&);   // 重载输入运算符
-      // ostream& operator<<(ostream&,  BigNum&);   // 重载输出运算符
+      Big& operator=(const Big&);
       Big operator+(const Big&) const;
       Big operator-(const Big&) const;
       Big operator*(const Big&)const;
@@ -733,7 +728,6 @@ $$
       bool operator<(const int& t) const;
       inline void print() const;
     };
-    // README::不要随随便便把参数都变成引用，那样没办法传值
     Big::Big(const int b) {
       int c, d = b;
       len = 0;
-- 
2.11.0