标签:des blog http io ar os sp java for
Time Limit: 5000/1500 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 3439    Accepted Submission(s): 1164
#include<iostream>
#include<cstdio>
#include<cstring>
#include<cstdlib>
#include<string>
#include<cmath>
#include<algorithm>
#include<queue>
#include<vector>
#include<set>
using namespace std;
set<long long> sset;
int t,n,aar[20];
void dfs(int a,int b,int c,int rt)
{
      if(rt==n)
      {
            if(a>b||b>c||a>c) return ;
            if(a&&b&&c&&(a+b)>c)
            {
                  long long temp=100000000*a+1000000*b+c;
                  sset.insert(temp);
            }
            return ;
      }
      dfs(a+aar[rt],b,c,rt+1);
      dfs(a,b+aar[rt],c,rt+1);
      dfs(a,b,c+aar[rt],rt+1);
}
int main()
{
      scanf("%d",&t);
      while(t--)
      {
            sset.clear();
            scanf("%d",&n);
            for(int i=0;i<n;i++)
                  scanf("%d",&aar[i]);
            dfs(0,0,0,0);
            printf("%I64d\n",sset.size());
      }
      return 0;
}
标签:des blog http io ar os sp java for
原文地址:http://www.cnblogs.com/a972290869/p/4108592.html