f[n]=f[n-1]+4*f[n-2]+2*(f[n-3]+f[n-5]+.....)+3*(f[n-4]+f[n-6]+....) 简单 相关文章: hdu 4004 && hdu 4006 2022-12-23 HDU 2853 && HDU 3315 2022-12-23 HDU 2112 HDU Today 2022-12-23 HDU - 2112 - HDU Today 2022-12-23 Hdu 2112 HDU Today 2022-12-23 HDU - 2112 HDU Today 2022-12-23 hdu Big Event in HDU 2022-02-13