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Check if all the rows are unique, if not return NO (why ? Coz if two rows are not unique then removing elements in it will not make it unique)
- Balaji January 06, 2015If so then, iterate over rows find the columns which are same at each step finally remove one column from it (if more than 1 present)
Eg:
1 0 0
1 0 1
1 1 1
After 1st iteration (1 == 1, 0 == 0, 0 == 0)
1 0 0
After 2nd iteration (1 == 1, 0 == 0, 0 == 1)
1 0 -
After 3rd (nth) iteration (1 == 1, 0 == 1)
1 - -
Answer: Remove 1st column