Given a non-negative integer num represented as a string, remove k digits from the number so that the new number is the smallest possible. Note: The length of num is less than 10002 and will be ≥ k. The given num does not contain any leading zero. Ex
写出将字符串中的数字转换为整型的方法,如:"as31d2v"->312,并写出相应的单元测试,输入超过int范围时提示不合法输入. public struct ConvertResult { public ConvertState State; public int Number; } public enum ConvertState { // 输入不合法 InValid = , // 输入合法 Valid = } public class StringHelper { publ
今天在codewar做练习题时,要求写一个函数把一个字符串去掉WUB这些多余的字符然后把剩下的组成一句话输出,如传入"WUBAWUBBWUBCWUB"后返回"A B C"我的源代码是如下 function songDecoder(song){ // ... var words=song.split('WUB'); var str1=""; for(var i=0;i<words.length;i++){ if(words[i]=="