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php爱好者> php文档>《C++ Primer》习题9.39

《C++ Primer》习题9.39

时间:2011-03-27  来源:windroc

#include <iostream>
#include
<vector>
#include
<string>


using std::cout;
using std::cin;
using std::endl;
using std::string;
using std::vector;



int _tmain(int argc, _TCHAR* argv[])
{
string line1 = "We were her pride of 10 she named us:";
string line2 = "Benjamin, Phoenix, the Prodigal";
string line3 = "and perspicacious pacific Suzanne";

string sentence = line1 + ' ' + line2 + ' ' + line3;
string separator = " ,0123456789"; // 分隔符
string::size_type pos = 0; // 当前位置
string::size_type wordLength = 0,maxLength = 0, minLength = 0; // 最长和最短单词的长度
int maxCount = 0 , minCount = 0 ; //最长和最短单词的个数
string::size_type startPos = 0 , endPos = 0; //单词的位置

vector
<string> maxWords;
vector
<string> minWords;

// 用第一个单词初始化
pos = sentence.find_first_not_of(separator,pos);
startPos
= pos;
pos
++;
pos
= sentence.find_first_of(separator,pos);
endPos
= pos;
maxLength
= minLength = endPos - startPos;
maxWords.push_back(sentence.substr(startPos,maxLength));
minWords.push_back(sentence.substr(startPos,minLength));

while((pos = sentence.find_first_not_of(separator,pos)) != string::npos)
{
startPos
= pos;
pos
++;
if((pos = sentence.find_first_of(separator,pos))!=string::npos)
{
endPos
= pos;
wordLength
= endPos - startPos;
if(maxLength < wordLength)
{
maxWords.clear();
maxLength
= wordLength;
maxWords.push_back(sentence.substr(startPos,wordLength));
}
else if(maxLength == wordLength)
maxWords.push_back(sentence.substr(startPos,wordLength));
if(minLength > wordLength)
{
minWords.clear();
minLength
= wordLength;
minWords.push_back(sentence.substr(startPos,wordLength));
}
else if(minLength == wordLength)
minWords.push_back(sentence.substr(startPos,wordLength));
pos
++;
}
}

system(
"pause");
return 0;
}

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