有一百元买4元,9元,6元的东西怎么买

Question

有一百元买4元,9元 ,6元的东西怎么买

Answer 1

用basic语言写一个程序
FOR x = 1 TO 99
FOR y = 1 TO 99
FOR z = 1 TO 99
a = 4 * x + 9 * y + z * 6
IF a = 100 THEN PRINT x,y,z
NEXT z
NEXT y
NEXT x
END
运行一下就可得到答案
1 2 13
1 4 10
1 6 7
1 8 4
1 10 1
4 2 11
4 4 8
4 6 5
4 8 2
7 2 9
7 4 6
7 6 3
10 2 7
10 4 4
10 6 1
13 2 5
13 4 2
16 2 3
19 2 1