you->we

编写一个C程序实现将字符串中的所有"you"替换成"we"

Input

输入包含多行数据

每行数据是一个字符串，长度不超过1000
数据以EOF结束

Output

对于输入的每一行，输出替换后的字符串

Sample Input

you are what you do

Sample Output

we are what we do

#include <string>  
#include <iostream> 
using namespace std; 
int main() 
{ 
    string str; 
    while(getline(cin,str)) 
    { 
        string::size_type pos = 0; 
        while ( (pos = str.find("you", pos)) != string::npos ) { 
            str.replace( pos++, 3, "we" ); //3表示被替换字符子串长度
        } 
        cout << str << endl; 
    } 
    return 0; 
}