The 2019 Asia Nanchang First Round Online Programming Contest-H-The Nth Item-CSDN博客

网站介绍:文章浏览阅读236次。矩阵快速幂的应用由关系式有:F (n) =3 *F(n - 1) + 2 * F(n - 2)F(n - 1) =1 * F(n - 1) + 0 * F(n - 2)则选取矩阵(b):b[1][1] = 3;b[1][2] = 2;b[2][1] = 1;b[2][2] = 0;代码: #include<bits/stdc++.h> using ..._the nth item