摘要:
A - Prime Ring Problem HDU - 1016 #include<iostream> #include<cmath> #include<cstring> using namespace std; int n; int a[100]; int vis[100]; int num; 阅读全文
摘要:
There is a frog staying to the left of the string s=s1s2…sn consisting of n characters (to be more precise, the frog initially stays at the cell 0). E 阅读全文
摘要:
You are given an array aa consisting of nn integers. Your task is to determine if aa has some subsequence of length at least 33 that is a palindrome. 阅读全文