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IF

, . :

IF "" Then "1" Else "2";

"" - ;
"1" , (True),
"2" , (False).

, "a" a>=0, :

IF a>=0 Then b:= Sqrt(a)

Else

begin

WriteLn('a<0');

Readln;

Halt

end;

Halt .

:

 

Else 2; . . :

IF "" Then "1";

: IFa<0 Then a:= abs(a);

 

.

PROGRAM VES; { }

CONST A1=' ';

A2=' ';

A3=' ';

A4=' ';

var

V: integer;

BEGIN

Write(' V = '); ReadLn(v);

if V<62 then WriteLn(A1) { }

else if V<75 then WriteLn(A2)

else if V<88 then WriteLn(A3)

else WriteLn(A4)

writeln(' Enter');

readln;

END.

: MOD DIV. , "N" ("N" "X1X2X3"), : X1X2X3, :

X3:= N mod 10;

N:= N div 10;

X2:= N mod 10;

N:= N div 10;

X1:= N;

, "A" "B", Frac(x); Int(x); :

x:= A/B;

if Frac(x) = 0 then writeln(' "A" "B"');

if Int(x) = x then writeln(' "A" "B"');

() . , , : 1) (a, b, c); 2) (a1, b1, c1); . .

, , : 1) > 90 - ( ); 2) < 90 - ( ); . .

. , - , . .

, "or", :

If (a > 90) or (b > 90) or (c > 90) then writeln (' - ');

, , "and", :

If (a < 90) and (b < 90) and (c < 90) then

writeln(' - ');

, , , :

If (a < 90)and (b < 90) and(c < 90) then

If (a=b) or (b=c) or (a=c) then

writeln(' - ')

else writeln(' - ');

, , :

If (a+b+c)<>180 then

begin

writeln(' <> 180');

Halt

end;

, , , "and" , "or". , (a, b, c, d), ( ), :

If ((a=b) and (c=d)) or ((a=c) and (b=d)) or ((a=d) and (b=c)) then

writeln('');

 





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