poj1080

#include<iostream>#include<fstream>using namespace std;int times;char a[101],b[101];int a_size,b_size;int result[101][101];int table[5][5]={{5,-1,-2,-1,-3},{-1,5,-3,-2,-4},{-2,-3,5,-2,-2},{-1,-2,-2,5,-1},{-3,-4,-2,-1,10000}};int ctoi(char x){int res=0;switch(x){case 'A':res=0;break;case 'C':res=1;break;case 'G':res=2;break;case 'T':res=3;break;case '-':res=4;break;}return res;}void prepare(){memset(result,0,sizeof(result));result[0][0]=0;for(int i=0;i<a_size;i++){result[0][i+1]=result[0][i]+table[ctoi(a[i])][ctoi('-')];}for(int i=0;i<b_size;i++){result[i+1][0]=result[i][0]+table[ctoi(b[i])][ctoi('-')];}}void doDp(){prepare();int x,y,z;for(int i=1;i<=b_size;i++){for(int j=1;j<=a_size;j++){x=result[i-1][j-1]+table[ctoi(b[i-1])][ctoi(a[j-1])];y=result[i][j-1]+table[ctoi('-')][ctoi(a[j-1])];z=result[i-1][j]+table[ctoi(b[i-1])][ctoi('-')];result[i][j]=max(x,y);result[i][j]=max(result[i][j],z);}}}int main(){//streambuf *backup;    //   ifstream fin;    //   fin.open("data.in");    //   backup = cin.rdbuf();   // back up cin's streambuf    //   cin.rdbuf(fin.rdbuf()); // assign file's streambuf to cin  cin>>times;while(times--){cin>>a_size;cin>>a;cin>>b_size;cin>>b;doDp();cout<<result[b_size][a_size]<<endl;}return 0;}