
ZOJ Problem Set  2952
Recently, Joey has special interest in the positive numbers that could be represented as M ^ N (M to the power N), where M and N are both positive integers greater than or equal to 2. For example, 4, 8, 9 and 16 are first four such numbers, as 4 = 2 ^ 2, 8 = 2 ^ 3, 9 = 3 ^ 2, 16 = 2 ^ 4. You are planning to give Joey a surprise by giving him all such numbers less than 2 ^ 31 (2147483648). List them in ascending order, one per line. Sample Output 4 8 9 16 25 27 32   < a lot more numbers  1024 1089 1156 1225 1296 1331    Author: SHEN, Guanghao Source: Zhejiang University Local Contest 2008 