....
by _bestknife @ 2016-04-24 10:39:08
呃呃呃呃呃呃呃呃呃呃呃呃呃呃呃
by die柠之恋 @ 2016-08-20 16:04:04
```cpp
begin
for a:=1 to 2 do
for b:=n downto 1 do
if w[b]<w[b-1] then
swap(w[b],w[b-1]);
end;
每次找两个最小值就行了
```
by zkcy @ 2016-09-04 22:44:06