第一题
//通过18%
public class Main7 {
public static void main(String args[]) throws Exception {
Scanner cin=new Scanner(System.in);
int n= cin.nextInt();
int[] arr1=new int[n];
int[] arr2=new int[n];
int[] arr3=new int[n];
for(int i=0;i<n;i++)arr1[i]=cin.nextInt();
for(int i=0;i<n;i++)arr2[i]=cin.nextInt();
for(int i=0;i<n;i++)arr3[i]=cin.nextInt();
int res=0;
Arrays.sort(arr3);
for (int i = n-1; i >=(n+1)/2 ; i--) {
res+=arr3[i];
}
System.out.println(res);
}
}
第二题
//27%
public class Main8 {
public static void main(String args[]) throws Exception {
Scanner cin=new Scanner(System.in);
int n= cin.nextInt();
int[] arr1=new int[n];
for(int i=0;i<n;i++)arr1[i]=cin.nextInt();
int sum=0;
for (int i = 0; i < n; i++) {
sum+=arr1[i];
}
System.out.println(sum/n);
}
}