mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
596be6ae11
5000-5099
40 lines
872 B
C++
40 lines
872 B
C++
#include <iostream>
|
|
#include <cstdio>
|
|
#include <cstring>
|
|
using namespace std ;
|
|
const int mod=1000000007 ;
|
|
int T[2005],dp[2005][2005] ;
|
|
int main()
|
|
{
|
|
int t ;
|
|
scanf("%d",&t) ;
|
|
while(t--)
|
|
{
|
|
int n ;
|
|
scanf("%d",&n) ;
|
|
int sum=0 ;
|
|
for(int i=0 ;i<n ;i++)
|
|
{
|
|
scanf("%d",&T[i]) ;
|
|
sum+=T[i] ;
|
|
}
|
|
memset(dp,0,sizeof(dp)) ;
|
|
for(int i=0 ;i<=T[0] ;i++)
|
|
dp[0][i]=1 ;
|
|
sum>>=1 ;
|
|
for(int i=1 ;i<n ;i++)
|
|
{
|
|
for(int j=0 ;j<=sum ;j++)
|
|
{
|
|
for(int k=0 ;k<=T[i] ;k++)
|
|
{
|
|
if(j<k)break ;
|
|
dp[i][j]=(dp[i][j]+dp[i-1][j-k])%mod ;
|
|
}
|
|
}
|
|
}
|
|
printf("%d\n",dp[n-1][sum]) ;
|
|
}
|
|
return 0 ;
|
|
}
|