[bzoj3404] [Usaco2009 Open]Cow Digit Game又见数字游戏

 1 #include<cstdio>
 2 #include<iostream>
 3 #include<cstring>
 4 #include<algorithm>
 5 using namespace std;
 6 const int maxn=1002333;
 7 int sg[maxn];
 8 int st[8];
 9 int i,j,k,n,m;
10  
11 int ra;char rx;
12 inline int read(){
13     rx=getchar(),ra=0;
14     while(rx<‘0‘||rx>‘9‘)rx=getchar();
15     while(rx>=‘0‘&&rx<=‘9‘)ra*=10,ra+=rx-48,rx=getchar();return ra;
16 }
17 int main(){
18     sg[0]=0;int mx,mn;
19     for(i=1;i<=1000000;i++){
20         mx=0,mn=10;
21         for(k=i;k;k/=10){
22             j=k%10;
23             if(j>0&&j<mn)mn=j;
24             if(j>mx)mx=j;
25         }
26         if(mx==mn)sg[i]=!sg[i-mx];
27         else if(sg[i-mx]&&sg[i-mn])sg[i]=0;
28         else if(sg[i-mx]!=1&&sg[i-mn]!=1)sg[i]=1;
29         else sg[i]=2;
30     }
31     for(int T=read();T;T--)
32         puts(sg[read()]?"YES":"NO");
33 }