PKU OJ - 1426 Find The Multiple

In PKU OJ,use G++ will AC, but use C++ will  TLE.
I think I should prune some useless branches.
在PKU 用 G++可以AC過，用C++會TLE 
可能要用點剪枝，還在努力中讓兩個都過...

The following program is my ACcepted code for PKU OJ 1426 Find The Multiple (only in G++).
It's a for everybody to learn and discuss.
If there is any mistake or comment, please let me know.  :D

此乃PKU 1426 的AC code! (只有在G++)
歡迎一同討論學習，如有錯誤與任何建議請留言 : )

點這裡看題目 Click here to see this Problem!

PKU OJ - 3122 Pie

The following program is my ACcepted code for PKU OJ 3122 Pie
It's a for everybody to learn and discuss.
If there is any mistake or comment, please let me know.  :D

此乃PKU 3122 的AC code!
歡迎一同討論學習，如有錯誤與任何建議請留言 : )

點這裡看題目 Click here to see this Problem!

PKU OJ - 1458 Common Subsequence

The following program is my ACcepted code for PKU OJ 1458 Common Subsequence
It's a for everybody to learn and discuss.
If there is any mistake or comment, please let me know.  :D

此乃PKU 1458的AC code!
歡迎一同討論學習，如有錯誤與任何建議請留言 : )

點這裡看題目 Click here to see this Problem!