题意:给你两个串,再给你一个表,按那个表求两串最大值
思路:
dp[i][j]=max(dp[i-1][j-1]+map[a[i-1]][b[j-1]],dp[i-1][j]+map[a[i-1]][‘-‘],dp[i][j-1]+map[‘-‘][b[j-1]]);
#include <iostream> #include<cstdio> #include<cstring> using namespace std; #define MAXN 110 char a[MAXN],b[MAXN]; int u[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,-1,10}}; int dp[MAXN][MAXN]; int max(int a,int b,int c){ a=a>b?a:b; return a>c?a:c; } int sv(char tmp){ switch(tmp){ case ‘A‘:return 0;break; case ‘C‘:return 1;break; case ‘G‘:return 2;break; case ‘T‘:return 3;break; case ‘-‘:return 4;break; } return 5; } int main(int argc, char** argv) { int t,i,j,lena,lenb; scanf("%d",&t); while(t--){ scanf("%d %s",&lena,a); scanf("%d %s",&lenb,b); memset(dp,0,sizeof(dp)); for(i=1;i<=lena;i++) dp[i][0]=dp[i-1][0]+u[sv(‘-‘)][sv(a[i-1])]; for(i=1;i<=lenb;i++) dp[0][i]=dp[0][i-1]+u[sv(b[i-1])][sv(‘-‘)]; for(i=1;i<=lena;i++) for(j=1;j<=lenb;j++) dp[i][j]=max(dp[i-1][j-1]+u[sv(b[j-1])][sv(a[i-1])],dp[i][j-1]+u[sv(b[j-1])][sv(‘-‘)],dp[i-1][j]+u[sv(‘-‘)][sv(a[i-1])]); printf("%d\n",dp[lena][lenb]); } return 0; }
poj 1080 Human Gene Functions_简单dp,布布扣,bubuko.com
poj 1080 Human Gene Functions_简单dp
原文地址:http://blog.csdn.net/neng18/article/details/25004883