笔试2--输出字符串中最长的单词

题目描述：对于一个字符串，输出该字符串中最长的单词。

代码：

#include<iostream>
#include<string>
using namespace std;

string MaxWord(const string str)
{
	string maxstr=new char[str.length()];//存最长单词
	string curstr=new char[str.length()];//记录当前单词

	int max=0;
	int cur=0;
	maxstr[0]='
 
 
题目描述：对于一个字符串，输出该字符串中最长的单词。
 
 
代码：
 
 
#include<iostream>
#include<string>
using namespace std;

string MaxWord(const string str)
{
	string maxstr=new char[str.length()];//存最长单词
	string curstr=new char[str.length()];//记录当前单词

	int max=0;
	int cur=0;
	maxstr[0]='\0';

	for(int i=0;str[i]!='\0';++i)
	{
		if(isalpha(str[i]))
			curstr[cur++]=str[i];
		
		else if(cur!=0)
		{
			if(cur>max)
			{
				curstr[cur]='\0';
				maxstr=curstr;
				max=cur;
			}
			cur=0;
		}
	}
	
	if(cur>max)
	{
		curstr[cur]='\0';
		maxstr=curstr;
	}

	return maxstr;
}

int main()
{
	cout<<MaxWord("I am a student").c_str()<<endl;;
	cout<<MaxWord("hello world").c_str()<<endl;
	cout<<MaxWord("different").c_str()<<endl;
	cout<<MaxWord(" ").c_str()<<endl;
	cout<<MaxWord("Don not lose hope").c_str()<<endl;
	cout<<MaxWord("NULL").c_str()<<endl;
	cout<<MaxWord("123 25 ask").c_str()<<endl;
	cout<<MaxWord("563").c_str()<<endl;
	cout<<MaxWord("gh* ** huji").c_str()<<endl;
	cout<<MaxWord("**j %%kj").c_str()<<endl;
	cout<<MaxWord("good night").c_str()<<endl;

	return 0;
}
 
 
结果：
 
  
  
 

 

';

	for(int i=0;str[i]!='
 
 
题目描述：对于一个字符串，输出该字符串中最长的单词。
 
 
代码：
 
 
#include<iostream>
#include<string>
using namespace std;

string MaxWord(const string str)
{
	string maxstr=new char[str.length()];//存最长单词
	string curstr=new char[str.length()];//记录当前单词

	int max=0;
	int cur=0;
	maxstr[0]='\0';

	for(int i=0;str[i]!='\0';++i)
	{
		if(isalpha(str[i]))
			curstr[cur++]=str[i];
		
		else if(cur!=0)
		{
			if(cur>max)
			{
				curstr[cur]='\0';
				maxstr=curstr;
				max=cur;
			}
			cur=0;
		}
	}
	
	if(cur>max)
	{
		curstr[cur]='\0';
		maxstr=curstr;
	}

	return maxstr;
}

int main()
{
	cout<<MaxWord("I am a student").c_str()<<endl;;
	cout<<MaxWord("hello world").c_str()<<endl;
	cout<<MaxWord("different").c_str()<<endl;
	cout<<MaxWord(" ").c_str()<<endl;
	cout<<MaxWord("Don not lose hope").c_str()<<endl;
	cout<<MaxWord("NULL").c_str()<<endl;
	cout<<MaxWord("123 25 ask").c_str()<<endl;
	cout<<MaxWord("563").c_str()<<endl;
	cout<<MaxWord("gh* ** huji").c_str()<<endl;
	cout<<MaxWord("**j %%kj").c_str()<<endl;
	cout<<MaxWord("good night").c_str()<<endl;

	return 0;
}
 
 
结果：
 
  
  
 

 

';++i)
	{
		if(isalpha(str[i]))
			curstr[cur++]=str[i];
		
		else if(cur!=0)
		{
			if(cur>max)
			{
				curstr[cur]='
 
 
题目描述：对于一个字符串，输出该字符串中最长的单词。
 
 
代码：
 
 
#include<iostream>
#include<string>
using namespace std;

string MaxWord(const string str)
{
	string maxstr=new char[str.length()];//存最长单词
	string curstr=new char[str.length()];//记录当前单词

	int max=0;
	int cur=0;
	maxstr[0]='\0';

	for(int i=0;str[i]!='\0';++i)
	{
		if(isalpha(str[i]))
			curstr[cur++]=str[i];
		
		else if(cur!=0)
		{
			if(cur>max)
			{
				curstr[cur]='\0';
				maxstr=curstr;
				max=cur;
			}
			cur=0;
		}
	}
	
	if(cur>max)
	{
		curstr[cur]='\0';
		maxstr=curstr;
	}

	return maxstr;
}

int main()
{
	cout<<MaxWord("I am a student").c_str()<<endl;;
	cout<<MaxWord("hello world").c_str()<<endl;
	cout<<MaxWord("different").c_str()<<endl;
	cout<<MaxWord(" ").c_str()<<endl;
	cout<<MaxWord("Don not lose hope").c_str()<<endl;
	cout<<MaxWord("NULL").c_str()<<endl;
	cout<<MaxWord("123 25 ask").c_str()<<endl;
	cout<<MaxWord("563").c_str()<<endl;
	cout<<MaxWord("gh* ** huji").c_str()<<endl;
	cout<<MaxWord("**j %%kj").c_str()<<endl;
	cout<<MaxWord("good night").c_str()<<endl;

	return 0;
}
 
 
结果：
 
  
  
 

 

';
				maxstr=curstr;
				max=cur;
			}
			cur=0;
		}
	}
	
	if(cur>max)
	{
		curstr[cur]='
 
 
题目描述：对于一个字符串，输出该字符串中最长的单词。
 
 
代码：
 
 
#include<iostream>
#include<string>
using namespace std;

string MaxWord(const string str)
{
	string maxstr=new char[str.length()];//存最长单词
	string curstr=new char[str.length()];//记录当前单词

	int max=0;
	int cur=0;
	maxstr[0]='\0';

	for(int i=0;str[i]!='\0';++i)
	{
		if(isalpha(str[i]))
			curstr[cur++]=str[i];
		
		else if(cur!=0)
		{
			if(cur>max)
			{
				curstr[cur]='\0';
				maxstr=curstr;
				max=cur;
			}
			cur=0;
		}
	}
	
	if(cur>max)
	{
		curstr[cur]='\0';
		maxstr=curstr;
	}

	return maxstr;
}

int main()
{
	cout<<MaxWord("I am a student").c_str()<<endl;;
	cout<<MaxWord("hello world").c_str()<<endl;
	cout<<MaxWord("different").c_str()<<endl;
	cout<<MaxWord(" ").c_str()<<endl;
	cout<<MaxWord("Don not lose hope").c_str()<<endl;
	cout<<MaxWord("NULL").c_str()<<endl;
	cout<<MaxWord("123 25 ask").c_str()<<endl;
	cout<<MaxWord("563").c_str()<<endl;
	cout<<MaxWord("gh* ** huji").c_str()<<endl;
	cout<<MaxWord("**j %%kj").c_str()<<endl;
	cout<<MaxWord("good night").c_str()<<endl;

	return 0;
}
 
 
结果：
 
  
  
 

 

';
		maxstr=curstr;
	}

	return maxstr;
}

int main()
{
	cout<<MaxWord("I am a student").c_str()<<endl;;
	cout<<MaxWord("hello world").c_str()<<endl;
	cout<<MaxWord("different").c_str()<<endl;
	cout<<MaxWord(" ").c_str()<<endl;
	cout<<MaxWord("Don not lose hope").c_str()<<endl;
	cout<<MaxWord("NULL").c_str()<<endl;
	cout<<MaxWord("123 25 ask").c_str()<<endl;
	cout<<MaxWord("563").c_str()<<endl;
	cout<<MaxWord("gh* ** huji").c_str()<<endl;
	cout<<MaxWord("**j %%kj").c_str()<<endl;
	cout<<MaxWord("good night").c_str()<<endl;

	return 0;
}#include<ios