if $x_i,y_i,c_i,d_i>0$ all are monotonically decreasing sequences, $$\max_i \frac{x_i}{c_i}>\max_i \frac{y_i}{c_i}$$ then $$max_i\frac{x_i}{d_i} \geq \max_i \frac{y_i}{d_i}$$ can be derived？
if $\max_i \frac{x_i}{c_i}>\max_i \frac{y_i}{c_i}$,whether $max_i\frac{x_i}{d_i}>\max_i \frac{y_i}{d_i}$ is right
qianmo
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