M斐波那契数列 Time Limit : 3000/1000ms (Java/Other) Memory Limit : 65535/32768K (Java/Other) Total Submission(s) : 43 Accepted Submission(s) : 28 Font: Times New Roman | Verdana | Georgia Font Size: ← → Problem Description M斐波那契数列F[n]是一种整数数列,它的定义如下: F[
MF( i ) = a ^ fib( i-1 ) * b ^ fib ( i ) ( i>=3) mod 1000000007 是质数 , 依据费马小定理 a^phi( p ) = 1 ( mod p ) 这里 p 为质数 且 a 比 p小 所以 a^( p - 1 ) = 1 ( mod p ) 所以对非常大的指数能够化简 a ^ k % p == a ^ ( k %(p-1) ) % p 用矩阵高速幂求fib数后代入就可以 M斐波那契数列 Time Limit: 3000/100
题目链接: Sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Problem Description Holion August will eat every thing he has found. Now there are many foods,but he does not want to eat all of them at once,so he fi
Sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1424 Accepted Submission(s): 469 Problem Description Holion August will eat every thing he has found. Now there are many foods,bu