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

超简单的贪心题，就不用多说了吧...

先处理好第一个人的，在处理第二个人的，如果二者喜欢同一个苹果，给第一个人

代码如下：

#include <map>#include <cmath>#include <vector>#include <string>#include <cstdio>#include <cstring>#include <cstdlib>#include <iostream>#include <algorithm>#define esp 1e-9#define MAXN 10010#define ll long long#define INF 0x7FFFFFFF#define BUG system("pause")#define SW(a,b) a^=b;b^=a;a^=b;using namespace std;int apple[MAXN];int main(void){int n, a, b;while(cin >> n >> a >> b){int Arlikes, Allikes;for(int i=0; i<a; ++i){cin >> Arlikes;apple[Arlikes] = 1;}for(int i=0; i<b; ++i){cin >> Allikes;if(apple[Allikes] != 1){apple[Allikes] = 2;}}printf("%d", apple[1]);for(int i=2; i<=n; ++i){printf(" %d", apple[i]);}}return 0;}