对称数是指12321之类的、颠倒书写顺序仍不变的自然数。对称平方数是指它是对称数同时还是某个自然数的平方。有人证实698896是最小偶数位对称平方数(=836^2)。请各位高手编一程序,找出另外两个最小偶数位对称平方数。
--- This is a good question by '巡天剑客', I'm too late to back here. But, my SAS Programm used time 1:36:17 to got 4 solutions. They are as following:
Digit=6 Root=836 Symmetric Square=698896
Digit=12 Root=798644 Symmetric Square=637832238736
Digit=16 Root=64030648 Symmetric Square=4099923883299904
Digit=22 Root=83163115486 Symmetric Square=6916103777337773016196
计算机编程题 - 找最小偶数位对称平方数 (ZT)
所有跟帖:
• 回复:计算机编程题 - 找最小偶数位对称平方数 (ZT) -Blue_Diamond- ♂ (3518 bytes) () 12/10/2010 postreply 00:59:51
• 回复:回复:计算机编程题 - 找最小偶数位对称平方数 (ZT) -Blue_Diamond- ♂ (5181 bytes) () 12/12/2010 postreply 00:33:11
• 回复:回复:回复:计算机编程题 - 找最小偶数位对称平方数 (ZT) -Blue_Diamond- ♂ (6509 bytes) () 12/14/2010 postreply 09:47:50
• 最小的显然是0;其次是1,4,9。 -qiasini- ♂ (21 bytes) () 12/11/2010 postreply 22:21:55
• 最小偶数位对称平方数,您那个是奇数位。 -皆兄弟也- ♂ (0 bytes) () 12/12/2010 postreply 00:41:29
• 484, -commentate- ♂ (0 bytes) () 12/18/2010 postreply 05:44:29
• 7744 -commentate- ♂ (0 bytes) () 12/18/2010 postreply 05:51:07
• 40804 -commentate- ♂ (0 bytes) () 12/18/2010 postreply 05:53:24
• 44944 -commentate- ♂ (0 bytes) () 12/18/2010 postreply 05:54:15
• 69696 -commentate- ♂ (0 bytes) () 12/18/2010 postreply 05:55:41
• 4008004 -commentate- ♂ (0 bytes) () 12/18/2010 postreply 06:03:19