B. Jeff and Periods time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequ…
352B - Jeff and Periods 思路:水题,考验实现(implementation)能力,来一波vector[允悲]. 代码: #include<bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define mem(a,b) memset((a),(b),sizeof(a)) ; vector<int>g[N]; vector<int>ans;…
B. Jeff and Periods time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequ…
One day Jeff got hold of an integer sequence a1, a2, ..., an of length n. The boy immediately decided to analyze the sequence. For that, he needs to find all values of x, for which these conditions hold: x occurs in sequence a. Consider all positions…
更好的阅读体验 Portal Portal1: Codeforces Portal2: Luogu Description Jeff's got n cards, each card contains either digit 0, or digit 5. Jeff can choose several cards and put them in a line so that he gets some number. What is the largest possible number div…
