题目1 : Give My Text Back
描述
To prepare for the English exam Little Ho collected many digital reading materials. Unfortunately the materials are messed up by a malware.
It is known that the original text contains only English letters (a-zA-Z), spaces, commas, periods and newlines, conforming to the following format:
1. Each sentence contains at least one word, begins with a letter and ends with a period.
2. In a sentence the only capitalized letter is the first letter.
3. In a sentence the words are separated by a single space or a comma and a space.
4. The sentences are separated by a single space or a single newline.
It is also known the malware changes the text in the following ways:
1. Changing the cases of letters.
2. Adding spaces between words and punctuations.
Given the messed text, can you help Little Ho restore the original text?
输入
A string containing no more than 8192 English letters (a-zA-Z), spaces, commas, periods and newlines which is the messed text.
输出
The original text.
- 样例输入
-
my Name is Little Hi.His name IS Little ho , We are friends.
样例输出 -
My name is little hi.His name is little ho, we are friends.
题目大意
小Hi和小Ho为了准备英语的期末考试,找了很多英语的电子资料。但是由于U盘出了问题,导致资料内容变得很乱。于是小Hi和小Ho决定写一个程序去将所有的电子资料格式化。 已知每一份资料只包含大小写字母,‘ ’(空格), ‘,’(逗号),‘.’(句号)以及换行符。小Hi和小Ho希望整理后的资料为如下格式: - 每一句话都是以’.’结尾,每一段话都是以换行符结尾。 - 每一段开始没有空格。 - 每一个句子都是完整的,即至少包含1个单词,句末一定为‘.’(句号)。 - 每一句话只有首字母大写。 - 每句话内单词之间由1个空格隔开。 - 标点符号与前面的单词之间无空格,标点符号后有1个空格或换行符。 对于给定的资料,请你对其进行格式化,并输出格式化的结果。
解题思路:
讲每行输入的数据先全部小写化处理,然后检测,空格,连续的空格就行删除,只留一个,逗号和句号后面加空格,因为需要对数组进行直接插入删除操作,所以用vector<char>,,,为什么不用list,因为list链表分配的不是连续的地址,不能通过下标直接存取。代码本地通过了,不过,提交没有AC,只能等下周答案出来了,看看别人的程序,再做修改。
1 #include "iostream" 2 #include "string" 3 #include "vector" 4 5 using namespace std; 6 7 int main() 8 { 9 char s[10000];10 bool point_tag = false;11 12 while (cin.getline(s, 10000))13 {14 int i = -1,len;15 vector
input; 16 17 while (s[i++])18 {19 s[i] = tolower(s[i]);20 }21 len = i;22 i = 0;23 s[i] = toupper(s[i]);24 25 for (int i = 0; i < len; i++)26 {27 input.insert(input.begin() + i, s[i]);28 }29 30 for (int i = 0; i < input.size(); i++)31 {32 if (input[i] == ' ')33 while (input[i + 1] == ' ' || input[i + 1] == ',')34 {35 if (input[i] == ',') {36 input.insert(input.begin() + i + 1, ' ');37 break;38 }39 40 else41 input.erase(input.begin() + i);42 } 43 else if (input[i] == '.')44 {45 input.insert(input.begin() + i + 1, ' ');46 char c = input[i + 2];47 c = toupper(c);48 49 input.erase(input.begin() + i + 2);50 input.insert(input.begin() + i + 2, c);51 } 52 }53 54 for (int i = 0; i < input.size(); i++)55 {56 if (input[i] == '.')57 {58 char c = input[i + 2];59 c = toupper(c);60 61 input.erase(input.begin() + i + 2);62 input.insert(input.begin() + i + 2, c);63 }64 cout << input[i];65 } 66 cout << endl;67 }68 } 不能AC的痛!