| #include<stdio.h> |
| #include<iostream> |
| #include<cmath> |
| #include<algorithm> |
| #include<cstring> |
| #include<map> |
| #include<set> |
| #include<vector> |
| #include<utility> |
| #include<math.h> |
| #include<sstream> |
|
|
| #define sd(x) scanf("%d",&x); |
| #define sd2(x,y) scanf("%d %d",&x,&y); |
| #define sd3(x,y,z) scanf("%d %d %d",&x,&y,&z); |
| #define sull(x) scanf("%ull",&x); |
| #define print(x) printf("%d\n",x); |
| #define print2(x,y) printf("%d %d\n",x,y); |
| #define print3(x,y,z) printf("%d %d %d\n",x,y,z); |
| #define printull(x) printf("%ull\n",x); |
|
|
| using namespace std; |
|
|
| |
|
|
| int main(){ |
| int n, i, j, k, dp[151][151], count[151][151], w; |
| count[0][0] = 1; |
| for(i = 1; i <= 150; i++) |
| count[0][i] = 0; |
| for(i = 1; i <= 150; i++) |
| count[i][0] = 1; |
| string input, acronym, up_acronym, word; |
| set<string> insig; |
| vector<string> words; |
| sd(n); |
| while(n != 0){ |
| insig.clear(); |
| for(i = 0; i < n; i++){ |
| cin>>word; |
| insig.insert(word); |
| } |
| getline(cin,input); |
| while(getline(cin,input) and input != "LAST CASE"){ |
| words.clear(); |
| stringstream ss; |
| |
| ss<<input; |
| ss>>up_acronym; |
| acronym = ""; |
| for(i = 0; i < up_acronym.length(); i++) acronym += tolower(up_acronym[i]); |
| |
| |
| while(ss>>word){ |
| if(insig.find(word) == insig.end()){ |
| words.push_back(word); |
| } |
| } |
| |
| int l1 = words.size(), l2 = acronym.length() ; |
| |
| for(i = 0; i <= l1; i++) |
| for(j = 0; j <= l2; j++) |
| dp[i][j] = 0; |
| |
| dp[0][0] = 1; |
| |
| for(i = 0; i < l1; i++){ |
| for(j = 1; j <= l2; j++){ |
| for(k = 1; k <= l2 - j + 1; k++){ |
| |
| for(int p = 1; p <= words[i].length(); p++){ |
| for(int q = 1; q <= k; q++){ |
| count[p][q] = count[p-1][q]; |
| if(words[i][p-1] == acronym[j+q-2]) count[p][q] += count[p-1][q-1]; |
| } |
| } |
| w = count[words[i].length()][k]; |
| dp[i+1][j+k-1] += w * dp[i][j-1]; |
| } |
| } |
| } |
| if(dp[l1][l2]){ |
| cout<<up_acronym<<" can be formed in "<<dp[l1][l2]<<" ways"<<endl; |
| } |
| else{ |
| cout<<up_acronym<<" is not a valid abbreviation"<<endl; |
| } |
| } |
| sd(n); |
| } |
| return 0; |
| } |
|
|
