ac1188.pas

某牛人写的acm.tongji.edu.cn上大部分ac的代码,仅供学习研究,请不要用来作弊

program tiu1188;
const
  maxn=20000;
var
  a:array[1..maxn]of shortint;
  m,n,i,j,s,ans:longint;
begin
  repeat
    read(m,n);dec(n);
    for i:=1 to n do read(a[i]);
    for j:=2 to m do
      for i:=1 to n do begin
        read(s);
        if s>a[i] then a[i]:=s;
      end;
    s:=0;ans:=0;
    for i:=1 to n do begin
      inc(s,a[i]);
      if s<0 then s:=0 else if s>ans then ans:=s;
    end;
    writeln(ans);
  until seekeof;
end.