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顶~

Posted by JiangLY at 2005-06-04 10:47:07 on Problem 2080
In Reply To:悲哀……对着日历都对过了,结果还是WA Posted by:realmajia at 2005-06-04 02:59:12
> const
>   c:array[1..12] of longint=(31,28,31,30,31,30,31,31,30,31,30,31);
>   p:array[1..7] of string=('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday');
> var
>   y,m,d,w,i,n:longint;
> function ok(q:longint):boolean;
> begin
>   if (q mod 100=0)and(q mod 400=0) then ok:=true
>   else if (q mod 100<>0)and(q mod 4=0) then ok:=true
>   else ok:=false;
> end;
> begin
>   while true do
>     begin
>       readln(n);
>       if n=-1 then halt;
>       y:=2000;
>       m:=1;
>       d:=1;
>       w:=6;
>       while n>=366+365*3 do
>         begin
>           inc(y,4);
>           w:=(366+365*3+w) mod 7;
>           if w=0 then w:=7;
>           dec(n,366+365*3);
>         end;
>       while ((ok(y))and(n>=366))or((not(ok(y)))and(n>=365)) do
>         begin
>           inc(y);
>           if ok(y) then
>             begin
>               w:=(366 mod 7+w) mod 7;
>               if w=0 then w:=7;
>               dec(n,366);
>             end
>                        else
>             begin
>               w:=(365 mod 7+w) mod 7;
>               if w=0 then w:=7;
>               dec(n,365);
>             end;
>         end;
>       for i:=1 to n do
>         begin
>           w:=w mod 7+1;
>           if (m=2)and(ok(y)) then d:=d mod (c[m]+1)+1
>                              else d:=d mod c[m]+1;
>           if d=1 then m:=m mod 12+1;
>           if (m=1)and(d=1) then inc(y);
>         end;
>       write(y,'-');
>       if m<10 then write('0',m,'-')
>               else write(m,'-');
>       if d<10 then write('0',d,' ')
>               else write(d,' ');
>       writeln(p[w]);
>     end;
> end.

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