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Re:数据太弱,暴力搜索不剪枝AC!In Reply To:数据太弱,暴力搜索不剪枝AC! Posted by:boycott at 2008-10-22 22:42:19 > 10 > 21 16 5 7 2 4 8 9 4 2 3 2 4 2 9 6 4 4 > 28 16 10 10 7 3 5 9 10 3 8 5 7 7 5 7 1 7 > 13 11 1 2 2 8 1 2 3 7 1 4 4 > 23 16 1 7 5 8 5 10 9 2 1 4 2 6 3 1 8 7 > 26 16 3 7 10 9 8 3 1 9 6 6 8 2 10 1 5 4 > 21 16 6 5 10 4 2 3 4 7 7 2 3 3 1 1 7 8 > 18 14 2 6 3 1 2 3 9 9 4 5 7 2 1 2 > 15 12 3 1 3 1 8 1 5 1 6 2 6 3 > 22 15 2 6 8 5 4 7 9 9 4 5 4 3 6 3 4 > 22 14 4 1 6 7 9 1 7 3 10 8 1 6 5 4 > > HUTUTU! > HUTUTU! > HUTUTU! > KHOOOOB! > KHOOOOB! > KHOOOOB! > KHOOOOB! > HUTUTU! > HUTUTU! > KHOOOOB! > > 基本思路就是从左到右,从上往下,枚举每个小正方形放进去。 > #include<iostream> > using namespace std; > int c[11],d[41],s,n,sum; > bool ok; > void dfs(int a) > { > int i,j,put,p; > bool f; > if(a==n) {ok=true;exit;} > for(i=1,put=41;i<=s;i++) > if(d[i]<put) {put=d[i];p=i;} > for(i=10;i>=1;i--) > if(c[i]>0 && put+i-1<=s && p+i-1<=s) > { > for(j=p,f=true;j<=p+i-1;j++) > if(d[j]>put) {f=false;break;} > if(f) > { > for(j=p;j<=p+i-1;j++) d[j]+=i; > c[i]--; > dfs(a+1); > c[i]++; > for(j=p;j<=p+i-1;j++) d[j]-=i; > } > } > } > int main() > { > int t,it,i,tp; > cin>>t; > for(it=1;it<=t;it++) > { > cin>>s>>n; > memset(c,0,sizeof(c)); > for(i=1;i<=40;i++) d[i]=1; > sum=0; > for(i=1;i<=n;i++) > { > cin>>tp; > c[tp]++; > sum+=tp*tp; > } > if(sum!=s*s) ok=false; > else {ok=false;dfs(0);} > if(ok) cout<<"KHOOOOB!"<<endl; > else cout<<"HUTUTU!"<<endl; > } > system("pause"); > return 0; > } Followed by: Post your reply here: |
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