POJ 2154 Color（組合數學-波利亞計數,數論-歐拉函數,整數快速冪）

Color Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 7693   Accepted: 2522 Descriptionhtml Beads of N colors are connected together into a circular necklace of N beads (N<=1000000000). Y

>>阅读原文<<