HDU 1080（dp46)

来源：互联网发布：淘宝流量突然下降了编辑：程序博客网时间：2024/06/06 02:35
#include<stdio.h>#include<string.h>#include<iostream>#include<algorithm>using namespace std;int dp[1005][1005];char str1[1005],str2[1005];int map[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,-1,0}};int exchange(char a){    int i;    if(a=='A')        i=0;    else if(a=='C')        i=1;    else if(a=='G')        i=2;    else if(a=='T')        i=3;    else         i=4;    return i;}int Texchange(char a,char b){    int x,y;    x=exchange(a);    y=exchange(b);    return map[x][y];}int main(){    int i,j;    int T;      scanf("%d",&T);    while(T--)    {        int len1,len2;        scanf("%d",&len1);        cin>>str1+1;        scanf("%d",&len2);        cin>>str2+1;        memset(dp,0,sizeof(dp));        for(i=1;i<=len1;i++)            dp[i][0]=dp[i-1][0]+Texchange(str1[i],'-');        for(i=1;i<=len2;i++)            dp[0][i]=dp[0][i-1]+Texchange('-',str2[i]);        for(i=1;i<=len1;i++)        {            for(j=1;j<=len2;j++)            {                   dp[i][j]=max(dp[i-1][j-1]+Texchange(str1[i],str2[j]),max(dp[i-1][j]+Texchange(str1[i],'-'),dp[i][j-1]+Texchange('-',str2[j])));            }        }        printf("%d\n",dp[len1][len2]);    }    return 0;}
0 0