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Timus 1601. AntiCAPS 修正大写句子
The blonde Angela has a new whim: internet chats. Of course, as any blonde, she writes her messages using the upper case. You are the moderator of Angela‘s favorite chat and you‘re fed up with her upper-case messages. The problem is that Angela does not respond to your warnings. You decided to write a simple antiCAPS corrector, which would make Angela‘s messages readable.
The correction rules are very simple:
- Sentences in a message consist of words, spaces and punctuation marks.
- Words consist of English letters.
- Sentences end with a full stop, exclamation mark, or question mark.
- The first word of each sentence must start with a capital letter, and all other letters of the sentence must be lowercase.
Input
You are given Angela‘s message, which consists of uppercase English letters, spaces, line breaks and punctuation marks: full stops, commas, dashes, colons, exclamation and question marks. Total length of message is not exceeding 10000 symbols.
Output
Output the corrected message.
Sample
| input | output |
|---|---|
HI THERE! HOW DID YOU KNOW I AM A BLONDE? | Hi there! How did you know i am a blonde? |
就是修正个全是大写的句子。
这里注意一点(as in codes‘ comment)：
keep the state, because blonde would do anything, and put the comma, in one line, and start typing another line.
#include <string>
#include <iostream>
using namespace std;
void toLowerCase(string &s, bool &senBegin)
{
for (unsigned i = 0; i < s.size(); i++)
{
if (‘ ‘ == s[i]) continue;
if (senBegin)
{
if (‘A‘ <= s[i] && s[i] <= ‘Z‘ || ‘a‘ <= s[i] && s[i] <= ‘z‘)
{
s[i] = toupper(s[i]);
senBegin = false;
}
continue;
}
if (‘.‘ == s[i] || ‘?‘ == s[i] || ‘!‘ == s[i]) senBegin = true;
s[i] = tolower(s[i]);
}
}
int AntiCAPS1601()
{
string s;
bool senBegin = true;//keep the state, because blonde would do anything, and put the comma, in one line, and start typing another line.
while (getline(cin, s))
{
toLowerCase(s, senBegin);
cout<<s<<endl;
}
return 0;
}Timus 1601. AntiCAPS 修正大写句子
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