99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
#include<iostream>
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#include<cstdio>
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#include<map>
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#include<cstring>
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#include<cmath>
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#include<vector>
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#include<queue>
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#include<algorithm>
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#include<set>
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#define inf (1ull<<63)-1
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#define N 130
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#define maxn 100005
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#define Min(a,b) ((a)<(b)?(a):(b))
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#define Max(a,b) ((a)>(b)?(a):(b))
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#define pb(a) push_back(a)
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#define mem(a,b) memset(a,b,sizeof(a))
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#define eps 1e-9
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#define zero(a) fabs(a)<eps
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#define ULL unsigned long long
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#define lson (step<<1)
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#define rson (step<<1|1)
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#define MOD 1000000007
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#define mp(a,b) make_pair(a,b)
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using namespace std;
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const ULL hash1=26;
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struct HASH{
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ULL h1;
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HASH(){}
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HASH(ULL _h1):h1(_h1){}
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}h[N][N];
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int wa[maxn],wb[maxn],wv[maxn],Ws[maxn];
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int cmp(int *r,int a,int b,int l)
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{return r[a]==r[b]&&r[a+l]==r[b+l];}
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void da(const int *r,int *sa,int n,int m){
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int i,j,p,*x=wa,*y=wb,*t;
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for(i=0;i<m;i++) Ws[i]=0;
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for(i=0;i<n;i++) Ws[x[i]=r[i]]++;
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for(i=1;i<m;i++) Ws[i]+=Ws[i-1];
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for(i=n-1;i>=0;i--) sa[--Ws[x[i]]]=i;
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for(j=1,p=1;p<n;j*=2,m=p){
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for(p=0,i=n-j;i<n;i++) y[p++]=i;
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for(i=0;i<n;i++) if(sa[i]>=j) y[p++]=sa[i]-j;
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for(i=0;i<n;i++) wv[i]=x[y[i]];
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for(i=0;i<m;i++) Ws[i]=0;
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for(i=0;i<n;i++) Ws[wv[i]]++;
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for(i=1;i<m;i++) Ws[i]+=Ws[i-1];
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for(i=n-1;i>=0;i--) sa[--Ws[wv[i]]]=y[i];
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for(t=x,x=y,y=t,p=1,x[sa[0]]=0,i=1;i<n;i++)
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x[sa[i]]=cmp(y,sa[i-1],sa[i],j)?p-1:p++;
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}
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return;
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}
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int sa[maxn],Rank[maxn],height[maxn];
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void calheight(const int *r,int *sa,int n){
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int i,j,k=0;
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for(i=1;i<=n;i++) Rank[sa[i]]=i;
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for(i=0;i<n;height[Rank[i++]]=k)
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for(k?k--:0,j=sa[Rank[i]-1];r[i+k]==r[j+k];k++);
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return;
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}
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int tot,r[maxn],cnt;
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char str[N][N];
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int main(){
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int t,cas=0,n,m;
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scanf("%d",&t);
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while(t--){
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scanf("%d%d",&n,&m);
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for(int i=0;i<n;i++) scanf("%s",str[i]);
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mem(h,0);
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ULL ans=0;
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for(int w=1;w<=m;w++){
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tot=1;cnt=0;
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map<ULL,int> map;
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map.clear();
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for(int i=0;i<n;i++){
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for(int j=0;j+w-1<m;j++){
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h[i][j].h1=h[i][j].h1*hash1+str[i][j+w-1]-'A';
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if(map.find(h[i][j].h1)==map.end())
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map.insert(mp(h[i][j].h1,tot++));
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}
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}
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for(int j=0;j+w-1<m;j++){
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for(int i=0;i<n;i++){
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r[cnt++]=map[h[i][j].h1];
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}
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r[cnt++]=tot++;
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}
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r[cnt]=0;
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da(r,sa,cnt+1,tot);
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calheight(r,sa,cnt);
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ULL tmp=(n*(n+1)/2)*(m-w+1);
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for(int i=1;i<=cnt;i++){tmp-=height[i];}
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ans+=tmp;
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}
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printf("Case #%d: %I64u\n",++cas,ans);
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}
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return 0;
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}
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