card

#include<stdio.h>
#include<stdlib.h>
int book[25];
int ans;
int test(int data[999]){
        for(int i=0;i<999;i++)
            book[data[i]]++;
        for(int i=12;i>=1;i--)
        {
            while(book[i]>=2&&book[2*i]>=1)
            {
                book[i]=book[i]-2;
                book[2*i]--;
            }
        }
        for(int i=1;i<=24;i++)
        {
            ans=ans+i*book[i];
        }
        return ans;
}
void build(int data[999]){
    for(int i=0;i<999;i++)
        data[i]=rand()%24+1;
}
void main(){
    int data[999];
    for(int l=0;l<10;l++){
        for(int i=1;i<=24;i++)
            book[i]=0;
        ans=0;
        build(data);
        printf("%d\n",test(data));

    }
}