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#include <stdio.h> #include <string.h> #include <string> #include <iostream> using namespace std; int table[1001][1001]; int main() { int n,len; string s; cin>>n; getchar(); while(n--) { getline(cin,s); if(s=="") { cout<<0<<"\n"; continue; } memset(table,0,sizeof(table)); len = s.size(); for(int i=0;i<=len;i++) { table[i][i]=1; } for(int length=2;length<=len;length++) { for(int i=0;i<=len-length+1;i++) { int end=i+length-1; if(end<0 || end>=len) continue; if(s[i]==s[end] && length==2) { table[i][end]=2; } else if(s[i]==s[end]) { table[i][end]=table[i+1][end-1]+2; } else { table[i][end] = max(table[i+1][end],table[i][end-1]); } } } cout<<table[0][len-1]<<"\n"; } return 0; } |