> 虽然基本照抄LCS。。。
LCS[0][0] = 0;
	
for(i=1; i<=gene2_len; i++)
    LCS[0][i] = LCS[0][i-1]+score[4][gene2[i]];
for(i=1; i<=gene1_len; i++)
    LCS[i][0] = LCS[i-1][0] + score[gene1[i]][4];
	
for(i=1; i<=gene1_len; i++)
    for(j=1; j<=gene2_len; j++)
    {
	if (gene1[i] == gene2[j])
		LCS[i][j] = LCS[i-1][j-1] + score[gene1[i]][gene2[j]];
	else
	        LCS[i][j] = MAX(MAX(LCS[i][j-1]+score[4][gene2[j]], LCS[i-1][j]+score[gene1[i]][4]),LCS[i-1][j-1]+score[gene1[i]][gene2[j]]);
    }