把
45拆成
A、
B、
C、
D四个数之和，并且
A加上
2 B减去
2 C乘以
2 D除以
2的结果相等。问
A、
B、
C、
D这四个数分别是多少？源程序
ex8_1.prg如下：
SET
TALK
OFF
CLEA
CLEA ALL
FOR
i
=
1
TO
45
a
=
i-
2
b
=
i
+
2
c
=
INT
(
i
/
2
)
d
=
i*
2
IF
a
+
b
+
c
+
d
=
45
? a
,
b
,
c
,
d
ENDIF
ENDFOR
RETU
SET
TALK
OFF
CLEACLEA ALL
FOR
i
=
1
TO
45
a
=
i-
2
b
=
i
+
2
c
=
INT
(
i
/
2
)
d
=
i*
2
IF
a
+
b
+
c
+
d
=
45
? a
,
b
,
c
,
d ENDIFENDFORRETU
