////  1111 单词替换.cpp//  Jobdu////  Created by PengFei_Zheng on 26/04/2017.//  Copyright © 2017 PengFei_Zheng. All rights reserved.// #include <stdio.h>#include <iostream>#include <algorithm>#include <string.h>#include <cmath>#define MAX_SIZE 101 using namespace std; int main(){    string str, a, b;    while(getline(cin,str)){        getline(cin,a);        getline(cin,b);        int lenstr = (int)str.size();        int lena = (int)a.size();        int pos = (int)str.find(a,0);        while(pos!=string::npos){            if((pos!=0 && str[pos-1]!=‘ ‘) || (pos+lena < lenstr && str[pos+lena]!=‘ ‘)){                pos = (int)str.find(a,pos+1);                continue;            }            str.replace(pos,lena,b);            pos = (int)str.find(a,pos+1);        }        cout<<str<<endl;    }    return 0;}/**************************************************************    Problem: 1111    User: zpfbuaa    Language: C++    Result: Accepted    Time:0 ms    Memory:1520 kb****************************************************************/