wrong on the following  code
///////////////////////
if(pos >maxline -1)
  pos = 0;
  a[pos++] = char;
////////////////////
when test case:
aaaaaaaaaaa.......a(total 80 a)<b
b should in pos 1 instead of erasing pos 80

Yeah, my program's output is exactly "baaaaaaaaaa....a". But I still got WA#9.

if(pos >maxline -1)
  pos = 0;
  a[pos++] = char;
  if (pos>maxline-1) pos=0;
// may be this help for you

Edited by author 12.11.2012 19:43