uvalive 6303 Smartphone Manufacturing

思路：类似背包，直接搞

#include<cstdio>
#include<iostream>
#include<algorithm>
#include<cstring>
#include<map>
#include<cmath>
#include<queue>
#include<cstring>
#include<set>
#include<stack>
#include<string>
#include<ctime>
#define LL long long
#define u64 unsigned long long
#define maxn 100010
#define INF 0x3f3f3f3f
#define eps 1e-6
using namespace std;

int a[1010];
bool vi[500010] ;
vector<int>q;
set<int>ss;
void solve(int n)
{
    memset(vi,0,sizeof(vi)) ;
    vi[0]=true;
    int v,Max=0;
    for( int i = 1 ; i <= n ;i++){
        for(int j = Max ; j >= 0 ;j--)if(vi[j])
        {
            vi[j+a[i]]=true;
        }
        Max+=a[i];
    }
}
int main()
{
    int L,n,m,ans1,ans2,sum,a1,a2 ;
    int i,j,k,T ;
    cin >> T ;
    while(T--)
    {
         scanf("%d",&n) ;
         sum=0;
         for( i = 1 ; i <= n ;i++ ){
            scanf("%d",&a[i]) ;
            sum += a[i] ;
         }
         solve(n) ;
         m = sum/2;
         for( i = m ; i >= 0 ;i--)if(vi[i])
            break ;
         ans1=i ;
         ans2=sum-i;
         k=0;

         sum=0;
         scanf("%d",&n) ;
         for( i = 1 ; i <= n ;i++ ){
            scanf("%d",&a[i]) ;
            sum += a[i] ;
         }
         solve(n) ;
         m = sum/2;
         for( i = m ; i >= 0 ;i--)if(vi[i])
            break ;
         a1=i ;
         a2=sum-i;

         if(a2-a1 < ans2-ans1 || (a2-a1==ans2-ans1&&a1+a2 >ans2+ans1) )
         {
                ans1=a1;
                ans2=a2;
                k = 1;
         }

         sum=0;
         scanf("%d",&n) ;
         for( i = 1 ; i <= n ;i++ ){
            scanf("%d",&a[i]) ;
            sum += a[i] ;
         }
         solve(n) ;
         m = sum/2;
         for( i = m ; i >= 0 ;i--)if(vi[i])
            break ;
         a1=i ;
         a2=sum-i;

         if(a2-a1 < ans2-ans1 || (a2-a1==ans2-ans1&&a1+a2 >ans2+ans1) )
         {
                ans1=a1;
                ans2=a2;
                k = 2;
         }
         printf("%c %d %d\n",'A'+k,ans1,ans2) ;
    }
    return 0 ;
}

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