0
已采纳
中级光能
void dfs(int ans,int sum,int goal,int now){
if(sum*goal==maxn){printf("%d\n",goal); exit(0);}
if(maxn-ans<a[cnt])return;
if(ans==goal){dfs(0,sum+1,goal,1); return;}
for( int i=now;i<=cnt;i++)
if(!use[i] && ans+a[i]<=goal){
use[i]=1;
dfs(ans+a[i],sum,goal,i+1);
use[i]=0;
if(ans+a[i]==goal || ans==0)break;
while(a[i]==a[i+1])i++;
}
0
缔造者
1
0
缔造者之神
1
