A Cubic number and A Cubic Number HDU
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A cubic number is the result of using a whole number in a multiplication three times. For example, 3×3×3=27so 27 is a cubic number. The first few cubic numbers are 1,8,27,64 and 125. Given an prime number pp. Check that if pp is a difference of two cubic numbers.
Input
The first of input contains an integer T (1≤T≤100) which is the total number of test cases.
For each test case, a line contains a prime number
Output
For each test case, output ‘YES’ if given pp is a difference of two cubic numbers, or ‘NO’ if not.
Sample Input
10
2
3
5
7
11
13
17
19
23
29
Sample Output
NO
NO
NO
YES
NO
NO
NO
YES
NO
NO
问题是给定素数
这个算数学题了吧,或是数论,这种题在acm已经是水题了。。。
易知:
因为p为素数,所以
转化为
是否有整数解的问题,这个就很显然了,只要验证
代码就没必要写了
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