Coder-Strike 2014 - Finals (online edition, Div. 2) A. Pasha and Hamsters

水题

#include <iostream>
#include <vector>
#include <algorithm>using namespace std;int main(){int n,a,b;cin >> n >>a >> b;vector<int> apple(n+1,0);int k;for(int i = 0 ;  i < a;  ++ i) {cin>>k;apple[k] = 1;}for(int i = 0 ; i < b; ++ i) {cin >> k;if(apple[k]==0) apple[k] = 2;}for(int i = 1 ; i < n+1; ++ i){if( i == 1) cout<< apple[i];else  cout<<" "<<apple[i];}cout<<endl;
}