Longest common prefix

Return the longest string that starts every word in the array. For flower, flow, flight it's fl; if there's nothing in common, return "". Start with the first word as a guess and shrink it against each next word until it fits them all.

Complete longestCommonPrefix(String[] strs) returning the longest prefix shared by every string. Return an empty string if there is none or the array is empty.

public class Prefix {
    public static String longestCommonPrefix(String[] strs) {
        return "";   // change this
    }
}

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Longest common prefix

Longest common prefix

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