D. Ones and Twos

Ô­ÌâÁ´½Ó Ìâ½â ¶ÔÓÚÈa56爆大奖在线娱乐âºÍΪ sum µÄ×ÓÊý×é \(S_1\)£¬Æä¿ÉÒÔ±ä³É sum-2 µÄ×ÓÊý×é \(S_2\) code #include<bits/stdc++.h> using namespace std; int a[100005]; int main() { int t; cin>>t;