While +Gururajan is correct, u should substract '0', but I recommend substracting it better in the original conversion loop:
for(int k=0 ;k<str1.length();k++) { str[k] =(str1.charAt(k)) - '0'; One more thing, the problem statement, ur code may work for the sample case but not for others, u assume that the substring length (if exists) is equal to the string length which is not true, for example this test case: 3114, its solution is: 2. -- Amahdy AbdElAziz www.amahdy.net On Sep 8, 2011 8:02 AM, "Gururajan Raghavendran" <mail2rg...@gmail.com> wrote: > You should subtract value 0 from each character of string. > > On Thu, Sep 8, 2011 at 2:18 AM, micke <mukesh.wy...@gmail.com> wrote: > >> Question : >> >> write program which takes a single argument. The single argument is a >> string s, which contains only non-zero digits. >> This function should print the length of longest contiguous substring >> of s, such that the length of the substring is 2*N digits and the sum >> of the leftmost N digits is equal to the sum of the rightmost N >> digits.If there is no such string, your function should print 0. >> Sample Test Cases: >> >> Input #00: >> 123231 >> >> Output #00: >> 6 >> >> >> ---------------------------------------------------------------------------------------------------------------------------------------------- >> my solution is : >> >> >> public class Str { >> public static void main(String args[]) >> { >> >> String str1 = "123231"; >> int[] str = new int[str1.length()]; >> for(int k=0 ;k<str1.length();k++) >> { >> str[k] =(str1.charAt(k)); >> } >> >> // int str[] = {1,2,3,2,3,1}; // problem here in >> conversion in this manner >> int len = str.length; >> int sum = 0; >> int sum1 =0; >> for(int i=0;i<(len/2);i++) >> { >> sum = sum+str[i] - '0'; >> } >> >> for(int j=(len/2);j<(len);j++) >> { >> sum1 = sum1+str[j] - '0'; >> } >> >> if((sum==len)&&(sum1==len)) >> { >> System.out.println(len); >> } >> else >> { >> System.out.println(0); >> } >> } >> >> } >> >> -- >> You received this message because you are subscribed to the Google Groups >> "google-codejam" group. >> To post to this group, send email to google-code@googlegroups.com. >> To unsubscribe from this group, send email to >> google-code+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/google-code?hl=en. >> >> > > -- > You received this message because you are subscribed to the Google Groups "google-codejam" group. > To post to this group, send email to google-code@googlegroups.com. > To unsubscribe from this group, send email to google-code+unsubscr...@googlegroups.com. > For more options, visit this group at http://groups.google.com/group/google-code?hl=en. > -- You received this message because you are subscribed to the Google Groups "google-codejam" group. To post to this group, send email to google-code@googlegroups.com. To unsubscribe from this group, send email to google-code+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-code?hl=en.