Hello Joanna

Link：https://cn.vjudge.net/contest/173312#problem/C题目：You task is to find minimal natural number N, so that N! contains exactly Q zeroes on the trail in decimal notation. As you know N! = 1*2*...*N. Fo

Link：https://cn.vjudge.net/contest/173312#problem/A题目：A sequence of N positive integers (10 < N < 100 000), each of them less than or equal 10000, and a positive integer S (S < 100 000 000) are given.

Link：https://cn.vjudge.net/contest/173312#problem/B题目：My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes