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 11-28-2010, 12:48 PM PM User | #1 Anemone New to the CF scene   Join Date: Nov 2010 Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts Algorithm Test Hey! I have a problem with an algortim I have to Find the Longrest comnon substring between two strings that should return a matrix if you have let say "abcs" and "sac" "" "" "" "" "" "" "a" "a" "" "" "a" "a" "" "" "a" "ac" "" "s" "s" "ac" Code: ```public class Find { public static String find(String str1, String str2) { int i, j; int m = str1.length(); int n = str2.length(); String[][] b = new String [m][n]; for (int s = 1; s= b[i][j-1].length()) b[i][j]= b [i-1][j]; else b[i][j] = b[i][j-1]; } return b [m-1][n-1] } }``` I think the algoritm is right but I need help so I can test if it actually work.
 11-28-2010, 01:16 PM PM User | #2 Anemone New to the CF scene   Join Date: Nov 2010 Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts Code: ```} return matrix [m-1][n-1] } public static void main(String [] args) { String str1 = "abbbccwwdw"; String str2 = "abbcddwdwd"; System.out.println(lcs(str1,str2)); } }``` getting the result "nullbbbbbb" what is it that is wrong?

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