75373.pas(49,20) Error: Incompatible types: got "Boolean" expected "LongInt"???
我的程序:
program E1_3; {point24}
type arr=array [1..4] of integer;
var i,result,n,len:integer;bbb:ansistring;
d:arr;
r:array [1..3,1..4] of integer;
procedure print;
var i,j:integer;
begin
write(’yes’);
end;
procedure try(k:integer;d:arr);
var a,b,i,j,l,t:integer;
e:arr;
begin
if k=1 then if d[1]=24 then begin print;halt end else
else
begin
for i:=1 to k-1 do
for j:=i+1 to k do
begin
a:=d[i]; b:=d[j];
if a<b then begin t:=a;a:=b;b:=t end;
t:=0;
for l:=1 to k do if (l<>i) and (l<>j) then begin t:=t+1;e[t]:=d[l] end;
r[5-k,1]:=a;
r[5-k,3]:=b;
r[5-k,4]:=-1;
for l:=1 to 4 do
begin
case l of
1:r[5-k,4]:=a+b;
2:r[5-k,4]:=a-b;
3:r[5-k,4]:=a*b;
4:if b<>0 then if a mod b=0 then r[5-k,4]:=a div b
end;
r[5-k,2]:=l;
if r[5-k,4]<>-1 then
begin
e[t+1]:=r[5-k,4];
try(k-1,e)
end
end
end
end;
end;
begin
for i:=1 to 4 do begin read(bbb);
if bbb=’A’ then d[i]:=1
else if ord(bbb[1])>=48 and ord(bbb[1])<=58 then d[i]:=ord(bbb[1])-48
else if bbb=’J’ then d[i]:=11
else if bbb=’Q’ then d[i]:=12
else if bbb=’K’ then d[i]:=13;
end;
try(4,d);
writeln(’no’);
end.