最长公共子序列VS最长连续公共子序列

Posted 2022-10-17 Hot Autumn

int findLCS(string A, int n, string B, int m) // 最长公共子序列
    string strA = "#" + A;
    string strB = "#" + B;
    int C[n+1][m+1];
    for(int i=0; i <= n; i++)
        C[i][0] = 0;
    for(int i=0; i <= m; i++)
        C[0][i] = 0;
    for(int i=1; i <= n; i++) 
        for(int j=1; j <= m; j++) 
            if(strA[i] == strB[j])
                C[i][j] = C[i-1][j-1] + 1;
            else if(C[i-1][j] > C[i][j-1])
                C[i][j] = C[i-1][j];
            else
                C[i][j] = C[i][j-1];
        
    
    return C[n][m];


int findLongest(string A, int n, string B, int m) // 最长连续公共子序列
    string strA = "#" + A;
    string strB = "#" + B;
    int C[n+1][m+1];
    for(int i=0; i <= n; i++)
        C[i][0] = 0;
    for(int i=0; i <= m; i++)
        C[0][i] = 0;
    int maxL = -1;
    for(int i=1; i <= n; i++) 
        for(int j=1; j <= m; j++) 
            if(strA[i] == strB[j])
                C[i][j] = C[i-1][j-1] + 1;
            else
                C[i][j] = 0;
            if(C[i][j] > maxL)
                maxL = C[i][j];
        
    
    return maxL;