UVa-11988 - Broken Keyboard (a.k.a. Beiju Text)

原来数组可以代替指针，涨姿势

#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
const int maxx=100010;
char a[maxx];
int next[maxx],cur,last;
int main()
{
    while(~scanf("%s",a+1))
    {
        int len=strlen(a+1);
        next[0]=0;
        cur=last=0;
        for(int i=1;i<=len;i++)
        {
            if(a[i]=='[') cur=0;
            else if(a[i]==']') cur=last;
            else
            {
                next[i]=next[cur];
                next[cur]=i;
                if(cur==last) last=i;
                cur=i;
            }
        }
        for(int i=next[0];i;i=next[i])
            printf("%c",a[i]);
        printf("\n");
    }
}