题解 | #最长公共前缀#

  * 
  * @param strs string字符串一维数组 
  * @return string字符串
  */
function longestCommonPrefix( strs ) {
    // write code here
    if(strs.length == 0)    return "";
    let row = strs.length;
    let col = strs[0].length;
    for (let i = 0; i < col; i++){
        const char = strs[0][i];
        for (let j = 1; j < row; j++){
            if (strs[j].length == i || strs[j][i] != char){
                return strs[0].substr(0, i);
            }
        }
    }
    return strs[0];
}
module.exports = {
    longestCommonPrefix : longestCommonPrefix
};