bzoj 4404 [Neerc2015]Binary vs Decimal题解

首先声明这题不打表可以过的。。只是我太笨了

先说下做法我们可以从一个合法的数XT，T是XT的后缀，那么T也是合法的

我们得到一个合法的T，可以去试一下XT是否合法

暴力枚举：

//Copyright(c)2016 liuchenrui
#include<cstdio>
#include<ctime>
#include<iostream>
#include<algorithm>
#include<cstring>
using namespace std;
inline void splay(int &v){v=0;char c=0;int p=1;while(c<'0' || c>'9'){if(c=='-')p=-1;c=getchar();}while(c>='0' && c<='9'){v=(v<<3)+(v<<1)+c-'0';c=getchar();}v*=p;
}
int a[10010],b[10010],c[200010],d[10010];
int tttt;
int main(){freopen("xxx.in","r",stdin);freopen("xxx.out","w",stdout);int n;splay(n);int tot=0;for(int i=1;i<=n;i++){int t=1;while(a[t]==1)a[t]=0,t++;a[t]=1;tot=max(tot,t);memcpy(b,a,4*tot+4);int T=0,w=tot;while(w){if(b[1]&1){b[1]--;c[++T]=1;}else c[++T]=0;for(int i=w,y=0;i>=1;i--){y=y*10+b[i];d[i]=y>>1;y=y&1;}memcpy(b,d,4*w+4);if(!b[w])w--;}bool flag=true;for(int j=1;j<=tot;j++){if(a[j]!=c[j])flag=false;}if(!flag)i--;else{printf("%d ",++tttt);for(int i=tot;i>=1;i--)putchar(a[i]+'0');putchar(10);}}for(int i=tot;i>=1;i--)putchar(a[i]+'0');
}

bfs就可，然后是卡常数时间：.bitset压位

//Copyright(c)2016 liuchenrui
#include<cstdio>
#include<ctime>
#include<iostream>
#include<algorithm>
#include<cstring>
#include<bitset>
using namespace std;
inline void splay(int &v){v=0;char c=0;int p=1;while(c<'0' || c>'9'){if(c=='-')p=-1;c=getchar();}while(c>='0' && c<='9'){v=(v<<3)+(v<<1)+c-'0';c=getchar();}v*=p;
}
bitset< 170 > que[500010];
int len[500010];
bitset< 170 > ans[20010];
int tot;
inline bool comp(const bitset<170> a,const bitset<170> b){for(int i=169;i>=0;i--){if(a[i]!=b[i])return a[i]<b[i];}
}
int a[1700],b[1700],c[1700];
inline bool is(const bitset<170> &a,int len){int w=len,T=0;for(int i=0;i<len;i++){b[i+1]=a[i];}while(w){if(b[1]&1){b[1]--;c[++T]=1;}else c[++T]=0;if(c[T]!=a[T-1])return false;for(int i=w,y=0;i>=1;i--){y=(y<<3)+(y<<1)+b[i];b[i]=y>>1;y&=1;}if(!b[w])w--;if(T>=len)break;}return true;
//  bool flag=true;
//  for(int j=1;j<=len;j++){
//      if(a[j-1]!=c[j])flag=false;
//  }
//  return flag;
}
int main(){freopen("xxx.in","r",stdin);freopen("xxx.out","w",stdout);int n;splay(n);int head=0,tail=2;if(n==1)puts("1"),exit(0);len[1]=len[2]=1;que[2][0]=1;while(len[head]<=161){/*if(!is(que[head],len[head])){fprintf(stderr,"error!!!");cout<<que[head]<<endl<<len[head];while(1);}*/head++;que[++tail]=que[head];len[tail]=len[head]+1;if(!is(que[tail],len[tail]))tail--;que[++tail]=que[head];len[tail]=len[head]+1;que[tail][len[tail]-1]=1;if(!is(que[tail],len[tail]))tail--;if(que[head][len[head]-1]==1)ans[++tot]=que[head];//cerr<<tail<<" "<<len[tail]<<endl;//cerr<<tot<<endl;}sort(ans+1,ans+tot,comp);int t=169;while(!ans[n][t])t--;for(int i=t;i>=0;i--){putchar(ans[n][i]+'0');}cerr<<clock()<<endl;
}

大致卡一下常数，本机O2750ms 交上去TTT

看到n<=10000就想到打表了

首先那张表打出来1000k左右

观察表发现相邻两项只差1,可以砍掉一半

观察发现后导0特别多，记录下来几个零可以省到100多k

观察发现剩下的全是0,1，我们建立唯一对应关系用一个字母代替4个0,1

现在还剩67k。，。。bzoj只让交65k

再次观察，发现数于数之间打表的（双引号，逗号，双引号）可以被省略，拿一个字母‘z'来替代

现在还剩56k，完成任务，。。。

（啊卧槽这题调了3天好累啊？）

#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
std::string a[10010];
std::string 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int b[]={0,1,2,1,3,2,4,2,3,2,5,2,4,2,6,4,5,4,7,4,6,4,8,6,7,6,9,6,8,6,10,6,8,6,9,6,8,6,11,8,6,6,10,8,6,6,12,8,6,6,10,8,6,6,11,8,6,6,10,8,6,6,13,6,8,6,8,6,10,6,12,6,8,6,8,6,10,6,14,6,6,6,12,6,6,6,13,6,6,6,12,6,6,6,15,12,6,6,6,6,6,6,14,12,6,6,6,6,6,6,16,6,6,6,14,6,6,6,15,6,6,6,14,6,6,6,17,6,6,6,6,14,6,6,16,6,6,6,6,14,6,6,18,6,6,14,6,16,6,6,14,6,17,6,6,14,6,16,6,6,14,6,19,6,6,14,6,16,6,6,14,6,18,6,6,14,6,16,6,6,14,6,20,6,14,16,6,14,18,6,14,16,6,14,19,6,14,16,6,14,18,6,14,16,6,14,21,14,16,14,6,6,6,6,18,14,16,14,20,14,16,14,6,6,6,6,18,14,16,14,22,14,6,6,14,16,20,14,6,6,14,16,21,14,6,6,14,16,20,14,6,6,14,16,23,14,6,16,20,14,6,16,6,14,6,14,22,14,6,16,20,14,6,16,6,14,6,14,24,14,6,16,6,14,22,14,6,16,6,14,23,14,6,16,6,14,22,14,6,16,6,14,25,14,16,6,14,6,6,22,14,16,6,14,24,14,16,6,14,6,6,22,14,16,6,14,26,14,14,6,22,14,14,24,14,14,6,22,14,14,25,14,14,6,22,14,14,24,14,14,6,22,14,14,27,6,14,14,24,6,14,14,14,14,22,14,14,22,26,6,14,14,24,6,14,14,14,14,22,14,14,22,28,24,26,24,27,24,26,24,29,24,24,26,28,24,24,26,30,24,24,28,24,24,29,24,24,28,24,24,31,28,24,24,24,24,30,28,24,24,24,24,32,24,24,30,24,24,31,24,24,30,24,24,33,24,24,24,30,24,32,24,24,24,30,24,34,24,30,32,24,30,33,24,30,32,24,30,35,24,30,32,24,30,34,24,30,32,24,30,36,24,32,24,34,24,32,24,35,24,32,24,34,24,32,24,37,24,32,24,34,24,32,24,36,24,32,24,34,24,32,24,38,32,24,24,36,32,24,24,37,32,24,24,36,32,24,24,39,24,36,24,32,24,32,24,38,24,36,24,32,24,32,24,40,24,32,24,38,24,32,24,39,24,32,24,38,24,32,24,41,24,32,24,24,32,24,38,40,24,32,24,24,32,24,38,42,32,24,24,38,40,32,24,24,38,41,32,24,24,38,40,32,24,24,38,43,24,40,24,32,24,38,32,24,38,42,24,40,24,32,24,38,32,24,38,44,24,40,24,24,38,24,38,42,24,40,24,24,38,24,38,43,24,40,24,24,38,24,38,42,24,40,24,24,38,24,38,45,24,38,24,40,24,24,38,40,24,24,38,42,24,38,24,44,24,38,24,40,24,24,38,40,24,24,38,42,24,38,24,46,24,24,24,38,24,38,38,44,24,24,24,38,24,38,38,45,24,24,24,38,24,38,38,44,24,24,24,38,24,38,38,47,24,24,24,38,44,24,24,24,38,24,38,38,24,38,38,46,24,24,24,38,44,24,24,24,38,24,38,38,24,38,38,48,24,24,38,24,24,38,38,46,24,24,38,24,24,38,38,47,24,24,38,24,24,38,38,46,24,24,38,24,24,38,38,49,24,24,38,38,24,24,38,24,24,38,46,24,24,38,38,48,24,24,38,38,24,24,38,24,24,38,46,24,24,38,38,50,38,24,24,38,46,38,48,38,24,24,38,46,38,49,38,24,24,38,46,38,48,38,24,24,38,46,38,51,38,24,46,38,48,38,24,46,38,24,38,24,38,50,38,24,46,38,48,38,24,46,38,24,38,24,38,52,38,24,46,38,48,38,24,46,38,50,38,24,46,38,48,38,24,46,38,51,38,24,46,38,48,38,24,46,38,50,38,24,46,38,48,38,24,46,38,53,38,48,38,38,24,46,38,24,46,38,24,46,38,24,46,50,38,48,38,52,38,48,38,38,24,46,38,24,46,38,24,46,38,24,46,50,38,48,38,54,38,38,24,46,38,24,46,48,38,52,38,38,24,46,38,24,46,48,38,53,38,38,24,46,38,24,46,48,38,52,38,38,24,46,38,24,46,48,38,55,38,24,38,46,52,38,24,38,46,38,46,24,48,38,38,46,24,48,38,54,38,24,38,46,52,38,24,38,46,38,46,24,48,38,38,46,24,48,38,56,24,38,46,38,38,46,38,24,48,54,24,38,46,38,38,46,38,24,48,55,24,38,46,38,38,46,38,24,48,54,24,38,46,38,38,46,38,24,48,57,24,38,38,46,48,38,46,38,24,38,46,38,24,54,24,38,38,46,48,56,24,38,38,46,48,38,46,38,24,38,46,38,24,54,24,38,38,46,48,58,24,38,46,38,24,54,24,56,24,38,46,38,24,54,24,57,24,38,46,38,24,54,24,56,24,38,46,38,24,54,24,59,24,38,46,38,24,56,24,38,46,38,24,54,24,54,24,58,24,38,46,38,24,56,24,38,46,38,24,54,24,54,24,60,24,38,24,56,24,38,24,58,24,38,24,56,24,38,24,59,24,38,24,56,24,38,24,58,24,38,24,56,24,38,24,61,24,38,24,56,24,38,24,56,24,38,24,58,24,38,24,60,24,38,24,56,24,38,24,56,24,38,24,58,24,38,24,62,24,38,24,56,24,38,24,56,24,38,24,60,24,38,24,56,24,38,24,56,24,38,24,61,24,38,24,56,24,38,24,56,24,38,24,60,24,38,24,56,24,38,24,56,24,38,24,63,24,56,24,56,24,60,24,56,24,56,24,24,38,24,38,24,38,24,38,24,38,24,38,62,24,56,24,56,24,60,24,56,24,56,24,24,38,24,38,24,38,24,38,24,38,24,38,64,24,56,24,56,24,24,24,24,38,38,38,62,24,56,24,56,24,24,24,24,38,38,38,63,24,56,24,56,24,24,24,24,38,38,38,62,24,56,24,56,24,24,24,24,38,38,38,65,24,24,38,56,24,56,24,24,24,38,38,56,24,56,24,24,24,38,38,62,24,24,38,64,24,24,38,56,24,56,24,24,24,38,38,56,24,56,24,24,24,38,38,62,24,24,38,66,24,24,38,56,24,56,24,24,24,38,38,62,24,24,38,64,24,24,38,56,24,56,24,24,24,38,38,62,24,24,38,65,24,24,38,56,24,56,24,24,24,38,38,62,24,24,38,64,24,24,38,56,24,56,24,24,24,38,38,62,24,24,38,67,24,56,24,38,62,64,24,56,24,38,62,24,24,38,56,24,24,38,24,24,38,24,24,38,56,24,24,38,24,24,38,66,24,56,24,38,62,64,24,56,24,38,62,24,24,38,56,24,24,38,24,24,38,24,24,38,56,24,24,38,24,24,38,68,56,38,64,56,38,24,24,56,24,24,38,24,24,56,24,24,38,66,56,38,64,56,38,24,24,56,24,24,38,24,24,56,24,24,38,67,56,38,64,56,38,24,24,56,24,24,38,24,24,56,24,24,38,66,56,38,64,56,38,24,24,56,24,24,38,24,24,56,24,24,38,69,38,64,38,24,24,56,38,24,24,56,38,56,56,24,24,24,24,56,56,24,24,24,24,66,38,64,38,24,24,56,38,24,24,56,38,68,38,64,38,24,24,56,38,24,24,56,38,56,56,24,24,24,24,56,56,24,24,24,24,66,38,64,38,24,24,56,38,24,24,56,38,70,64,56,38,56,38,56,56,56,56,38,38,24,24,24,24,68,64,56,38,56,38,56,56,56,56,38,38,24,24,24,24,69,64,56,38,56,38,56,56,56,56,38,38,24,24,24,24,68,64,56,38,56,38,56,56,56,56,38,38,24,24,24,24,71,64,56,56,56,56,38,38,24,24,68,64,56,56,56,56,38,38,24,24,38,38,56,56,24,24,38,38,56,56,24,24,70,64,56,56,56,56,38,38,24,24,68,64,56,56,56,56,38,38,24,24,38,38,56,56,24,24,38,38,56,56,24,24,72,56,56,38,24,64,56,56,38,24,38,56,24,38,56,24,70,56,56,38,24,64,56,56,38,24,38,56,24,38,56,24,71,56,56,38,24,64,56,56,38,24,38,56,24,38,56,24,70,56,56,38,24,64,56,56,38,24,38,56,24,38,56,24,73,56,56,24,56,56,38,38,56,24,38,64,24,24,38,56,38,64,24,24,38,56,70,56,56,24,56,56,38,38,56,24,72,56,56,24,56,56,38,38,56,24,38,64,24,24,38,56,38,64,24,24,38,56,70,56,56,24,56,56,38,38,56,24,74,24,38,38,64,24,24,38,56,70,24,38,72,24,38,38,64,24,24,38,56,70,24,38,73,24,38,38,64,24,24,38,56,70,24,38,72,24,38,38,64,24,24,38,56,70,24,38,75,24,38,38,24,72,24,38,38,24,64,24,38,56,70,24,38,64,24,38,56,70,24,38,74,24,38,38,24,72,24,38,38,24,64,24,38,56,70,24,38,64,24,38,56,70,24,38,76,24,72,24,64,70,64,70,74,24,72,24,64,70,64,70,75,24,72,24,64,70,64,70,74,24,72,24,64,70,64,70,77,24,64,70,24,72,70,64,24,72,70,64,74,24,64,70,76,24,64,70,24,72,70,64,24,72,70,64,74,24,64,70,78,64,24,70,76,64,24,70,77,64,24,70,76,64,24,70,79,64,76,64,24,70,24,70,78,64,76,64,24,70,24,70,80,64,24,70,78,64,24,70,79,64,24,70,78,64,24,70,81,64,24,70,24,70,78,64,80,64,24,70,24,70,78,64,82,64,70,24,78,64,80,64,70,24,78,64,81,64,70,24,78,64,80,64,70,24,78,64,83,64,70,78,64,80,64,70,78,64,24,24,82,64,70,78,64,80,64,70,78,64,24,24,84,64,78,64,80,64,78,64,82,64,78,64,80,64,78,64,83,64,78,64,80,64,78,64,82,64,78,64,80,64,78,64,85,64,78,64,80,64,78,64,82,64,78,64,80,64,78,64,84,64,78,64,80,64,78,64,82,64,78,64,80,64,78,64,86,64,78,64,80,64,78,64,84,64,78,64,80,64,78,64,85,64,78,64,80,64,78,64,84,64,78,64,80,64,78,64,87,64,80,64,84,64,80,64,78,64,78,64,78,64,78,64,86,64,80,64,84,64,80,64,78,64,78,64,78,64,78,64,88,64,80,64,78,64,78,64,86,64,80,64,78,64,78,64,87,64,80,64,78,64,78,64,86,64,80,64,78,64,78,64,89,64,80,64,78,64,78,64,78,64,78,64,86,64,80,64,88,64,80,64,78,64,78,64,78,64,78,64,86,64,80,64,90,64,78,64,78,64,86,64,88,64,78,64,78,64,86,64,89,64,78,64,78,64,86,64,88,64,78,64,78,64,86,64,91,78,64,64,88,78,64,64,64,64,78,86,64,64,78,86,90,78,64,64,88,78,64,64,64,64,78,86,64,64,78,86,92,64,64,88,64,64,64,64,90,64,64,88,64,64,64,64,91,64,64,88,64,64,64,64,90,64,64,88,64,64,64,64,93,64,64,64,64,88,64,64,64,88,64,64,90,64,64,64,92,64,64,64,64,88,64,64,64,88,64,64,90,64,64,64,94,64,88,88,64,64,92,64,88,88,64,64,93,64,88,88,64,64,92,64,88,88,64,64,95,64,64,92,64,64,64,88,88,64,88,88,94,64,64,92,64,64,64,88,88,64,88,88,96,64,64,64,88,88,94,64,64,64,88,88,95,64,64,64,88,88,94,64,64,64,88,88,97,64,64,88,64,88,64,88,94,64,64,88,96,64,64,88,64,88,64,88,94,64,64,88,98,64,88,94,96,64,88,94,97,64,88,94,96,64,88,94,99,88,94,96,88,94,64,64,98,88,94,96,88,94,64,64,100,96,98,96,99,96,98,96,101,96,98,96,100,96,98,96,102,96,100,96,101,96,100,96,103,100,96,96,102,100,96,96,104,96,102,96,103,96,102,96,105,96,102,96,104,96,102,96,106,102,104,102,105,102,104,102,107,104,102,102,106,104,102,102,108,104,102,102,106,104,102,102,107,104,102,102,106,104,102,102,109,102,104,102,104,102,106,102,108,102,104,102,104,102,106,102,110,102,108,102,109,102,108,102,111,108,102,102,110,108,102,102,112,102,110,102,111,102,110,102,113,102,102,110,112,102,102,110,114,102,110,112,102,110,113,102,110,112,102,110,115,102,110,112,102,110,114,102,110,112,102,110,116,110,112,110,114,110,112,110,115,110,112,110,114,110,112,110,117,112,110,110,110,110,114,112,116,112,110,110,110,110,114,112,118,110,110,112,116,110,110,112,117,110,110,112,116,110,110,112,119,110,116,110,110,112,110,112,118,110,116,110,110,112,110,112,120,110,110,112,118,110,110,112,119,110,110,112,118,110,110,112,121,110,112,110,110,118,110,112,120,110,112,110,110,118,110,112,122,110,110,118,110,120,110,110,118,110,121,110,110,118,110,120,110,110,118,110,123,110,110,120,110,110,118,110,118,110,122,110,110,120,110,110,118,110,118,110,124,110,110,120,110,110,122,110,110,120,110,110,123,110,110,120,110,110,122,110,110,120,110,110,125,110,110,120,110,110,120,110,110,122,110,110,124,110,110,120,110,110,120,110,110,122,110,110,126,110,120,110,120,110,110,124,110,120,110,120,110,110,125,110,120,110,120,110,110,124,110,120,110,120,110,110,127,110,120,110,120,110,110,124,110,120,110,120,110,110,126,110,120,110,120,110,110,124,110,120,110,120,110,110,128,110,110,110,110,120,120,126,110,110,110,110,120,120,127,110,110,110,110,120,120,126,110,110,110,110,120,120,129,110,110,110,110,120,120,120,120,126,110,110,110,110,128,110,110,110,110,120,120,120,120,126,110,110,110,110,130,110,120,120,126,110,128,110,120,120,126,110,129,110,120,120,126,110,128,110,120,120,126,110,131,120,126,128,120,126,110,120,110,110,120,110,130,120,126,128,120,126,110,120,110,110,120,110,132,120,128,120,120,110,120,110,130,120,128,120,120,110,120,110,131,120,128,120,120,110,120,110,130,120,128,120,120,110,120,110,133,120,128,120,120,120,110,110,110,110,130,120,128,120,120,120,132,120,128,120,120,120,110,110,110,110,130,120,128,120,120,120,134,128,120,120,110,110,110,110,120,120,132,128,120,120,110,110,110,110,120,120,133,128,120,120,110,110,110,110,120,120,132,128,120,120,110,110,110,110,120,120,135,128,120,120,110,110,120,120,132,128,120,120,110,110,120,120,110,110,110,110,134,128,120,120,110,110,120,120,132,128,120,120,110,110,120,120,110,110,110,110,136,128,120,120,110,110,120,120,110,110,134,128,120,120,110,110,120,120,110,110,135,128,120,120,110,110,120,120,110,110,134,128,120,120,110,110,120,120,110,110,137,120,110,120,110,128,120,110,120,110,128,120,110,120,110,134,120,110,120,110,136,120,110,120,110,128,120,110,120,110,128,120,110,120,110,134,120,110,120,110,138,110,120,128,120,110,120,110,134,110,120,136,110,120,128,120,110,120,110,134,110,120,137,110,120,128,120,110,120,110,134,110,120,136,110,120,128,120,110,120,110,134,110,120,139,120,128,110,110,110,136,120,128,110,110,110,110,120,120,134,120,110,120,120,134,120,138,120,128,110,110,110,136,120,128,110,110,110,110,120,120,134,120,110,120,120,134,120,140,120,128,110,110,136,120,128,110,110,120,120,134,120,120,120,134,120,138,120,128,110,110,136,120,128,110,110,120,120,134,120,120,120,134,120,139,120,128,110,110,136,120,128,110,110,120,120,134,120,120,120,134,120,138,120,128,110,110,136,120,128,110,110,120,120,134,120,120,120,134,120,141,120,128,110,110,120,120,134,120,110,110,136,120,128,120,120,134,120,110,110,136,120,128,120,120,134,120,138,120,128,110,110,120,120,134,120,140,120,128,110,110,120,120,134,120,110,110,136,120,128,120,120,134,120,110,110,136,120,128,120,120,134,120,138,120,128,110,110,120,120,134,120,142,120,128,120,120,134,120,120,120,134,120,120,120,134,120,110,110,140,120,128,120,120,134,120,120,120,134,120,120,120,134,120,110,110,141,120,128,120,120,134,120,120,120,134,120,120,120,134,120,110,110,140,120,128,120,120,134,120,120,120,134,120,120,120,134,120,110,110,143,128,134,134,134,140,128,134,134,134,120,120,120,120,120,120,120,120,120,120,110,110,120,120,120,120,120,120,120,120,120,120,110,110,142,128,134,134,134,140,128,134,134,134,120,120,120,120,120,120,120,120,120,120,110,110,120,120,120,120,120,120,120,120,120,120,110,110,144,128,134,134,134,120,120,120,120,120,120,110,110,120,120,120,120,142,128,134,134,134,120,120,120,120,120,120,110,110,120,120,120,120,143,128,134,134,134,120,120,120,120,120,120,110,110,120,120,120,120,142,128,134,134,134,120,120,120,120,120,120,110,110,120,120,120,120,145,128,134,110,110,134,134,120,120,120,120,120,120,120,120,120,120,134,134,120,120,120,120,120,120,120,120,120,120,142,128,134,110,110,144,128,134,110,110,134,134,120,120,120,120,120,120,120,120,120,120,134,134,120,120,120,120,120,120,120,120,120,120,142,128,134,110,110,146,128,134,134,120,120,120,120,120,120,120,120,120,120,142,128,144,128,134,134,120,120,120,120,120,120,120,120,120,120,142,128,145,128,134,134,120,120,120,120,120,120,120,120,120,120,142,128,144,128,134,134,120,120,120,120,120,120,120,120,120,120,142,128,147,128,134,134,120,120,120,120,142,128,144,128,134,134,120,120,120,120,142,128,120,120,120,120,120,120,120,120,120,120,120,120,146,128,134,134,120,120,120,120,142,128,144,128,134,134,120,120,120,120,142,128,120,120,120,120,120,120,120,120,120,120,120,120,148,134,120,120,142,144,134,120,120,142,120,120,120,120,120,120,146,134,120,120,142,144,134,120,120,142,120,120,120,120,120,120,147,134,120,120,142,144,134,120,120,142,120,120,120,120,120,120,146,134,120,120,142,144,134,120,120,142,120,120,120,120,120,120,149,120,142,144,120,142,120,120,120,120,134,120,134,120,120,120,134,120,134,120,120,120,146,120,142,144,120,142,120,120,120,120,148,120,142,144,120,142,120,120,120,120,134,120,134,120,120,120,134,120,134,120,120,120,146,120,142,144,120,142,120,120,120,120,150,120,142,120,120,134,120,120,134,120,120,120,142,144,120,120,148,120,142,120,120,134,120,120,134,120,120,120,142,144,120,120,149,120,142,120,120,134,120,120,134,120,120,120,142,144,120,120,148,120,142,120,120,134,120,120,134,120,120,120,142,144,120,120,151,120,134,120,120,142,144,120,148,120,134,120,120,142,144,120,120,142,120,120,134,120,120,120,120,142,120,120,134,120,120,120,150,120,134,120,120,142,144,120,148,120,134,120,120,142,144,120,120,142,120,120,134,120,120,120,120,142,120,120,134,120,120,120,152,120,120,120,120,134,142,144,142,120,120,120,120,120,134,120,150,120,120,120,120,134,142,144,142,120,120,120,120,120,134,120,151,120,120,120,120,134,142,144,142,120,120,120,120,120,134,120,150,120,120,120,120,134,142,144,142,120,120,120,120,120,134,120,153,120,120,120,142,142,120,120,120,120,120,120,134,144,120,134,120,134,144,120,134,150,120,120,120,142,142,120,120,120,120,120,152,120,120,120,142,142,120,120,120,120,120,120,134,144,120,134,120,134,144,120,134,150,120,120,120,142,142,120,120,120,120,120,154,120,120,142,142,120,120,120,134,120,120,144,134,150,120,120,142,142,120,120,120,152,120,120,142,142,120,120,120,134,120,120,144,134,150,120,120,142,142,120,120,120,153,120,120,142,142,120,120,120,134,120,120,144,134,150,120,120,142,142,120,120,120,152,120,120,142,142,120,120,120,134,1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int main(){int x;scanf("%d",&x);int now=0;for(int i=0;i<k.length();i++){if(k[i]=='z')now++;else a[now]+=k[i];}for(int i=1;i<=b[x>>1];i++){a[x>>1]+='0';}if(x&1)a[x>>1][a[x>>1].length()-1]='1';//printf("%s\n",a[x>>1].c_str());for(int i=0;i<a[x>>1].length();i++){if(a[x>>1][i]=='a')printf("0000");if(a[x>>1][i]=='b')printf("0001");if(a[x>>1][i]=='c')printf("0010");if(a[x>>1][i]=='d')printf("0011");if(a[x>>1][i]=='e')printf("0100");if(a[x>>1][i]=='f')printf("0101");if(a[x>>1][i]=='g')printf("0110");if(a[x>>1][i]=='h')printf("0111");if(a[x>>1][i]=='i')printf("1000");if(a[x>>1][i]=='j')printf("1001");if(a[x>>1][i]=='k')printf("1010");if(a[x>>1][i]=='l')printf("1011");if(a[x>>1][i]=='m')printf("1100");if(a[x>>1][i]=='n')printf("1101");if(a[x>>1][i]=='o')printf("1110");if(a[x>>1][i]=='p')printf("1111");if(a[x>>1][i]=='0')printf("0");if(a[x>>1][i]=='1')printf("1");}while(1);
}

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