题目链接:http://codeforces.com/problemset/problem/208/A
题意
给出一个字符串,将字符串中的WUB给删去,如果两个字母间有WUB,则这两个字母用空格隔开
AC代码
#include <stdio.h>
#include <string.h>
#include <iostream>
#include <algorithm>
#include <math.h>
#include <limits.h>
#include <map>
#include <stack>
#include <queue>
#include <vector>
#include <set>
#include <string>
#define ll long long
#define ms(a) memset(a,0,sizeof(a))
#define pi acos(-1.0)
#define INF 0x3f3f3f3f
const double E=exp(1);
const int maxn=1e6+10;
using namespace std;
char ch[maxn];
char str[maxn];
int vis[maxn];
int main(int argc, char const *argv[])
{
gets(ch);
int l=strlen(ch);
int j=0;
for(int i=0;i<l;)
{
if(ch[i]=='W'&&ch[i+1]=='U'&&ch[i+2]=='B')
{
vis[j]=1;
i+=3;
continue;
}
else
{
str[j++]=ch[i];
i+=1;
}
}
for(int i=0;i<j;i++)
{
if(vis[i])
{
if(i)
cout<<" ";
}
cout<<str[i];
}
cout<<endl;
return 0;
}