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超级水题,1AC,PASCAL代码var n,a,b,c,d,e,i,j:longint; re:real; bb:boolean; procedure chj(x:integer); begin case x of 1:j:=b-a; 2:if j<>c-b then exit; 3:if j<>d-c then exit; 4:begin writeln(j+d);bb:=false; end; end; if bb then chj(x+1); end; procedure chc(x:integer); begin case x of 1:re:=b/a; 2:if re<>c/b then exit; 3:if re<>d/c then exit; 4:begin writeln((re*d):0:0);bb:=false; end; end; if bb then chc(x+1); end; begin read(n); for i:=1 to n do begin read(a,b,c,d); write(a,' ',b,' ',c,' ',d,' '); bb:=true; chj(1); j:=0; if bb then chc(1); end; end. Followed by:
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