NYOJ-113：字符串替换

you are what you do

we are what we do

#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
char str[1005];
int main()
{
while(cin.getline(str,1000))
{
int i;
int len = strlen(str);
for(i=2;i<len;i++)
{
if(str[i-2]=='y' &&str[i-1]=='o' &&str[i]=='u')
str[i-2] = 'w',str[i-1] = 'e',str[i] = '\0';
}
for(i=0;i<len;i++)
if (str[i]!='\0')
putchar(str[i]);
putchar('\n');
}
}