#abc222b. [abc222_b]Failing Grade

[abc222_b]Failing Grade

给定一个 nn 个元素的序列 aa,求有多少个元素满足 ai<pa_i < p1in1\le i\le n

1n1051\le n\le 10^51p1001\le p\le 1000ai1000\le a_i\le 100