zoukankan      html  css  js  c++  java
  • poj1080

    题面
    It is well known that a human gene can be considered as a sequence, consisting of four nucleotides, which are simply denoted by four letters, A, C, G, and T. Biologists have been interested in identifying human genes and determining their functions, because these can be used to diagnose human diseases and to design new drugs for them.
    题意
    在两个字符串中,添加'-',使得长度相同,并且对应的权值和最大.
    注意两个'-' 不能对应
    思路
    转换为lcs问题,类似的地方在于,求出对应最大的权值,但是同时考虑不再lcs里面的,就是和'-'相对应

    #include<iostream>
    #include<algorithm>
    #include<vector>
    #include<stack>
    #include<queue>
    #include<map>
    #include<set>
    #include<cstdio>
    #include<cstring>
    #include<cmath>
    #include<ctime>
    
    #define fuck(x) cerr<<#x<<" = "<<x<<endl;
    #define debug(a, x) cerr<<#a<<"["<<x<<"] = "<<a[x]<<endl;
    #define lson l,mid,ls
    #define rson mid+1,r,rs
    #define ls (rt<<1)
    #define rs ((rt<<1)|1)
    using namespace std;
    typedef long long ll;
    typedef unsigned long long ull;
    const int loveisblue = 486;
    const int maxn = 205;
    const int maxm = 100086;
    const int inf = 0x3f3f3f3f;
    const ll Inf = 999999999999999999;
    const int mod = 1000000007;
    const double eps = 1e-6;
    const double pi = acos(-1);
    
    const int mat[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,-1,5}
    };
    
    
    int get_id(char c){
        if(c=='A'){
            return 0;
        }else if(c=='C'){
            return 1;
        }else if(c=='G'){
            return 2;
        }else if(c=='T'){
            return 3;
        }else{
            return 4;
        }
    }
    
    char s1[maxn],s2[maxn];
    int dp[maxn][maxn];
    int main() {
        ios::sync_with_stdio(true);
    #ifndef ONLINE_JUDGE
        freopen("in.txt", "r", stdin);
    #endif
    
        int T;
        scanf("%d",&T);
        while (T--){
            int len1,len2;
            scanf("%d%s",&len1,s1+1);
            scanf("%d%s",&len2,s2+1);
            for(int i=0;i<=len1;i++){
                for(int j=0;j<=len2;j++){
                    dp[i][j]=-inf;
                }
            }
            dp[0][0]=0;
            for(int i=1;i<=len1;i++)
            dp[i][0]=dp[i-1][0]+mat[get_id(s1[i])][get_id('-')];
            for(int i=1;i<=len2;i++)
            dp[0][i]=dp[0][i-1]+mat[get_id(s2[i])][get_id('-')];
            for(int i=1;i<=len1;i++){
                for(int j=1;j<=len2;j++){
                    dp[i][j]=max(dp[i][j],dp[i-1][j-1]+mat[get_id(s1[i])][get_id(s2[j])]);
                    dp[i][j]=max(dp[i][j],dp[i-1][j]+mat[get_id(s1[i])][get_id('-')]);
                    dp[i][j]=max(dp[i][j],dp[i][j-1]+mat[get_id(s2[j])][get_id('-')]);
                }
            }
            printf("%d
    ",dp[len1][len2]);
        }
    
        return 0;
    }
    
    
  • 相关阅读:
    vue自定义指令directive
    vue组件:input数字输入框
    vue中用数组语法绑定class
    vue中检测数组改变
    node绝对和相对模块
    判断拖放
    媒体查询 和rem布局
    JSON字符串对象相互转换
    深度封装typeof判断
    类数组
  • 原文地址:https://www.cnblogs.com/ZGQblogs/p/11569735.html
Copyright © 2011-2022 走看看