Паскаль
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1. задание.
uses crt;
var
a,b, c: real;
begin
readln (a, b);
if a< b then writeln ('min ', a);
if a>b then writeln ('min ', b);
if a=b then writeln ('vse ravni');
readkey;
end.
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2.задание.
uses crt;
var
a,i: real;
begin
readln (a);
i:= abs(a);
writeln (i);
readkey;
end.
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3 задание.
uses crt;
var
a,i: integer;
st: string;
begin
readln (a);
str (a, st);
if length (st)=3 then writeln ('chislo trehznachnoe') else writeln ('chislo ne trexznachnoe');
readkey;
end.