Exactly working out 3 problems: Mode 1: with distribution of mod 5 cyclicity,obtaining the best plan of bonus distribution about 1 098 169 yuan every year.

• 精确求解出了 3个问题 :问题 1:基于分拆的mod 5周期性 ；所得最佳计划使得每年发放奖金约为 10 9816 9元 .