first, i have basic idear: The solution is to do it in two passes. In the first pass the whole string is reversed and in the second each word is reversed again. After reversing the whole string: "ecneinevnocni eht rof esigolopa eW" Reversing word at a time: "inconvenience eht rof ...
1)从原始s 的最末尾开始扫描,如果遇到空格,用while剔除掉。 2)接下来从第一个非空格读取,存入一个temp的string中,然后调用string::reverse() 反转,并string::append()到ss中。 3)重复1、2步,但是有几个情况需要注意: a.我们从末尾扫描,当扫描到空格,后,由于ss为空,所以不会push.back(' ')到ss中。 b...
Reduce them to a single space in the reversed string. publicclassSolution{publicStringreverseWords(Strings){if(s.length()==0){returns;}Stack<String>stack=newStack<String>();String[]ss=s.split("\\s+");for(Stringword:ss){stack.push(word);}StringBuildersb=newStringBuilder();while(!stack.is...
代码 classSolution{public:voidreverseWords(string&s){reverse(s.begin(),s.end());intk=0;for(inti=0;i<s.size();i++){if(s[i]!=' '){if(k!=0)s[k++]=' ';intj=i;while(j<s.size()&&s[j]!=' ')s[k++]=s[j++];reverse(s.begin()+k-(j-i),s.begin()+k);i=j;}}s...
151. Reverse Words in a String Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". 一刷: 如果是in-place的替换,思路不那么容易想到。首先全部reverse, 然后再局部每个单词reverse...
Reverse Words in a String Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in O(1) space. ...
When you use the Excel worksheet, how do you reverse the text string or words order in Excel? For example, you want to reverse “Excel is a useful tool for us” to “su rof loot lufesu a si lecxE”. Or sometimes you may reverse the words order such as “Excel, Word, PowerPoint...
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In general, we search word from left side in a string, but would you ever tried to reverse search the word in a string, which means to quickly get the last word from string as below screenshot shown. Here, I introduce some formulas to help you quickly find the last word in a string...
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